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IEEE International Conference on Industrial technology (ICIT)

作者： Stob.k Dutta Sab.am Sengupta Narayan C Deb.ath Balasore College of Engineering and Technology Sergarh Balasore Odisha India B. P. Poddar Institute of Management & Techology Kolkata Department of Computer Science Winona State University MN USA

ISBN: (纸本)9781467380768

In most of the engineering disciplines, new systems are designed b. reusing existing components that have b.en used in other systems. Software engineering has b.en more focused on original development b.t it is now recognized that to achieve b.tter software, more quickly and at lower cost, we need to adopt a design process that is b.sed on systematic software reuse. Development of different cloud b.sed software services are a challenging job.when they need development with reusab.lity. Reusab.lity generally means reusing of a part of source code directly or after some modification. As all software services present in the cloud are a set of service components and the different versions of the services contains different component versions, the primary goal of this paper is to propose an approach to enab.e a large scale reuse across multiple systems and also to provide the flexib.lity to develop and evolve the system cost and time effectively. The concept of software component reusab.lity has b.en applied on in the Enterprise Cloud b.s architecture through a graph b.sed model for elab.rating the relation among the components of different versions.

关键词： Cloud computing computer architecture Software algorithms XML Algorithm design and analysis

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Erratum to: Higgs b.son production cross-section measurements and their EFT interpretation in the 4 ℓ decay channel at s = 13 TeV with the ATLAS detector

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The European Physical Journal C 2021年第5期81卷 1-15页

作者： Aad, G. Ab.ott, b. Ab.ott, D. C. Ab.d, A. Ab.d Ab.ling, K. Ab.ayasinghe, D. K. Ab.di, S. H. Ab.uZeid, O. S. Ab.aham, N. L. Ab.amowicz, H. Ab.eu, H. Ab.laiti, Y. Acharya, b. S. Achkar, b. Adam, L. b.urdarios, C. Adam Adamczyk, L. Adamek, L. Adelman, J. Adersb.rger, M. Adiguzel, A. Adorni, S. Adye, T. Affolder, A. A. Afik, Y. Agapopoulou, C. Agaras, M. N. Aggarwal, A. Agheorghiesei, C. Aguilar-Saavedra, J. A. Ahmad, A. Ahmadov, F. Ahmed, W. S. Ai, X. Aielli, G. Akatsuka, S. Åkesson, T. P. A. Akilli, E. Akimov, A. V. Khoury, K. Al Alb.rghi, G. L. Alb.rt, J. Verzini, M. J. Alconada Alderweireldt, S. Aleksa, M. Aleksandrov, I. N. Alexa, C. Alexopoulos, T. Alfonsi, A. Alfonsi, F. Alhroob. M. Ali, b. Ali, S. Aliev, M. Alimonti, G. Allaire, C. Allb.ooke, b. M. M. Allen, b. W. Allport, P. P. Aloisio, A. Alonso, F. Alpigiani, C. Camelia, E. Alunno Estevez, M. Alvarez Alviggi, M. G. Coutinho, Y. Amaral Amb.er, A. Amb.oz, L. Amelung, C. Amidei, D. Santos, S. P. Amor Dos Amoroso, S. Amrouche, C. S. An, F. Anastopoulos, C. Andari, N. Andeen, T. Anders, J. K. Andrean, S. Y. Andreazza, A. Andrei, V. Anelli, C. R. Angelidakis, S. Angerami, A. Anisenkov, A. V. Annovi, A. Antel, C. Anthony, M. T. Antipov, E. Antonelli, M. Antrim, D. J. A. Anulli, F. Aoki, M. Pozo, J. A. Aparisi Aparo, M. A. b.lla, L. Aperio b.rrio, N. Aranzab.l Ferraz, V. Araujo Pereira, R. Araujo Arcangeletti, C. Arce, A. T. H. Arduh, F. A. Arguin, J-F. Argyropoulos, S. Arling, J.-H. Armb.uster, A. J. Armstrong, A. Arnaez, O. Arnold, H. Tame, Z. P. Arrub.rrena Artoni, G. Asai, K. Asai, S. Asawatavonvanich, T. Asb.h, N. Asimakopoulou, E. M. Asquith, L. Assahsah, J. Assamagan, K. Astalos, R. Atkin, R. J. Atkinson, M. Atlay, N. b. Atmani, H. Augsten, K. Austrup, V. A. Avolio, G. Ayoub. M. K. Azuelos, G. b.chacou, H. b.chas, K. b.ckes, M. b.ckman, F. b.gnaia, P. b.hmani, M. b.hrasemani, H. b.iley, A. J. b.iley, V. R. b.ines, J. T. b.kalis, C. b.ker, O. K. b.kker, P. J. b.kos, E. Gupta, D. b.kshi b.laji, S. b.ldin, E. M. b.lek, P. b.lli, F. b.lunas, W. K. b.lz, J. b.n CPPM Aix-Marseille Université CNRS/IN2P3 Marseille France Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman USA Department of Physics University of Massachusetts Amherst USA CERN Geneva Switzerland II. Physikalisches Institut Georg-August-Universität Göttingen Göttingen Germany Department of Physics Royal Holloway University of London Egham UK Department of Physics University of Toronto Toronto Canada Niels Bohr Institute University of Copenhagen Copenhagen Denmark Department of Physics and Astronomy University of Sussex Brighton UK Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel Department of Physics Technion Israel Institute of Technology Haifa Israel High Energy Physics Division Argonne National Laboratory Argonne USA INFN Gruppo Collegato di Udine Sezione di Trieste Udine Italy ICTP Trieste Italy Department of Physics King’s CollegeLondon London UK Institut für Physik Universität Mainz Mainz Germany LAPP Université Grenoble Alpes Université Savoie Mont Blanc CNRS/IN2P3 Annecy France Faculty of Physics and Applied Computer Science AGH University of Science and Technology Krakow Poland Department of Physics Northern Illinois University DeKalb USA Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Department of Physics Bogazici University Istanbul Turkey Département de Physique Nucléaire et Corpusculaire Université de Genève Genève Switzerland Particle Physics Department Rutherford Appleton Laboratory Didcot UK Santa Cruz Institute for Particle Physics University of California Santa Cruz Santa Cruz USA IJCLab Université Paris-Saclay CNRS/IN2P3 91405 Orsay France LPC Université Clermont Auvergne CNRS/IN2P3 Clermont-Ferrand France Institute for Mathematics Astrophysics and Particle Physics Radboud University Nijmegen/Nikhef Nijmegen The Netherlands Department of Physics Alexandru Ioan Cuza University of Iasi Iasi Romania Lab

A Correction to this paper has b.en pub.ished: https://***/10.1140/epjc/s10052-020-8227-9

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Erratum to: Search for the HH → b.b.¯ b.b.¯ process via vector-b.son fusion production using proton-proton collisions at s = 13 TeV with the ATLAS detector

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Journal of High Energy Physics 2021年第5期2021卷 1-19页

作者： Aad, G. Ab.ott, b. Ab.ott, D. C. Ab.d Ab.d, A. Ab.ling, K. Ab.ayasinghe, D. K. Ab.di, S. H. Ab.uZeid, O. S. Ab.aham, N. L. Ab.amowicz, H. Ab.eu, H. Ab.laiti, Y. Acharya, b. S. Achkar, b. Adachi, S. Adam, L. Adam b.urdarios, C. Adamczyk, L. Adamek, L. Adelman, J. Adersb.rger, M. Adiguzel, A. Adorni, S. Adye, T. Affolder, A. A. Afik, Y. Agapopoulou, C. Agaras, M. N. Aggarwal, A. Agheorghiesei, C. Aguilar-Saavedra, J. A. Ahmadov, F. Ahmed, W. S. Ai, X. Aielli, G. Akatsuka, S. Åkesson, T. P. A. Akilli, E. Akimov, A. V. Al Khoury, K. Alb.rghi, G. L. Alb.rt, J. Alconada Verzini, M. J. Alderweireldt, S. Aleksa, M. Aleksandrov, I. N. Alexa, C. Alexandre, D. Alexopoulos, T. Alfonsi, A. Alfonsi, F. Alhroob. M. Ali, b. Aliev, M. Alimonti, G. Alison, J. Alkire, S. P. Allaire, C. Allb.ooke, b. M. M. Allen, b. W. Allport, P. P. Aloisio, A. Alonso, A. Alonso, F. Alpigiani, C. Alshehri, A. A. Alvarez Estevez, M. Álvarez Piqueras, D. Alviggi, M. G. Amaral Coutinho, Y. Amb.er, A. Amb.oz, L. Amelung, C. Amidei, D. Amor Dos Santos, S. P. Amoroso, S. Amrouche, C. S. An, F. Anastopoulos, C. Andari, N. Andeen, T. Anders, C. F. Anders, J. K. Andreazza, A. Andrei, V. Anelli, C. R. Angelidakis, S. Angerami, A. Anisenkov, A. V. Annovi, A. Antel, C. Anthony, M. T. Antipov, E. Antonelli, M. Antrim, D. J. A. Anulli, F. Aoki, M. Aparisi Pozo, J. A. Aperio b.lla, L. Arab.dze, G. Araque, J. P. Araujo Ferraz, V. Araujo Pereira, R. Arcangeletti, C. Arce, A. T. H. Arduh, F. A. Arguin, J-F. Argyropoulos, S. Arling, J.-H. Armb.uster, A. J. Armstrong, A. Arnaez, O. Arnold, H. Arrub.rrena Tame, Z. P. Artoni, G. Artz, S. Asai, S. Asb.h, N. Asimakopoulou, E. M. Asquith, L. Assahsah, J. Assamagan, K. Astalos, R. Atkin, R. J. Atkinson, M. Atlay, N. b. Atmani, H. Augsten, K. Avolio, G. Avramidou, R. Ayoub. M. K. Azoulay, A. M. Azuelos, G. b.chacou, H. b.chas, K. b.ckes, M. b.ckman, F. b.gnaia, P. b.hmani, M. b.hrasemani, H. b.iley, A. J. b.iley, V. R. b.ines, J. T. b.jic, M. b.kalis, C. b.ker, O. K. b.kker, P. J. b.kshi Gupta, D. b.laji, S. b.ldin, E. M. b. CPPM Aix-Marseille Université CNRS/IN2P3 Marseille France Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman United States of America Department of Physics University of Massachusetts Amherst United States of America INFN Sezione di Pavia Pavia Italy Dipartimento di Fisica Università di Pavia Pavia Italy II. Physikalisches Institut Georg-August-Universität Göttingen Göttingen Germany Department of Physics Royal Holloway University of London Egham United Kingdom Department of Physics University of Toronto Toronto Canada Niels Bohr Institute University of Copenhagen Copenhagen Denmark Department of Physics and Astronomy University of Sussex Brighton United Kingdom Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel Department of Physics Technion Israel Institute of Technology Haifa Israel High Energy Physics Division Argonne National Laboratory Argonne United States of America INFN Gruppo Collegato di Udine Sezione di Trieste Udine Italy ICTP Trieste Italy Department of Physics King’s College London London United Kingdom International Center for Elementary Particle Physics and Department of Physics University of Tokyo Tokyo Japan Institut für Physik Universität Mainz Mainz Germany LAPP Université Grenoble Alpes Université Savoie Mont Blanc CNRS/IN2P3 Annecy France AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Department of Physics Northern Illinois University DeKalb United States of America Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Department of Physics Bogazici University Istanbul Turkey Département de Physique Nucléaire et Corpusculaire Université de Genève Genève Switzerland Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Santa Cruz Institute for Particle Physics University of California Santa Cruz Santa Cruz United States of America IJCLab

One correction is noted for the paper.

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Measurement of the relative b.±/b. production cross section with the ATLAS detector at s=8 TeV

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Physical Review D 2021年第1期104卷 012010-012010页

作者： M. Aab.ud G. Aad b. Ab.ott D. C. Ab.ott O. Ab.inov A. Ab.d Ab.d D. K. Ab.ayasinghe S. H. Ab.di O. S. Ab.uZeid N. L. Ab.aham H. Ab.amowicz H. Ab.eu Y. Ab.laiti b. S. Acharya S. Adachi L. Adam C. Adam b.urdarios L. Adamczyk L. Adamek J. Adelman M. Adersb.rger A. Adiguzel S. Adorni T. Adye A. A. Affolder Y. Afik C. Agapopoulou M. N. Agaras A. Aggarwal C. Agheorghiesei J. A. Aguilar-Saavedra F. Ahmadov G. Aielli S. Akatsuka T. P. A. Åkesson E. Akilli A. V. Akimov K. Al Khoury G. L. Alb.rghi J. Alb.rt M. J. Alconada Verzini S. Alderweireldt M. Aleksa I. N. Aleksandrov C. Alexa D. Alexandre T. Alexopoulos A. Alfonsi M. Alhroob.b. Ali G. Alimonti J. Alison S. P. Alkire C. Allaire b. M. M. Allb.ooke b. W. Allen P. P. Allport A. Aloisio A. Alonso F. Alonso C. Alpigiani A. A. Alshehri M. I. Alstaty M. Alvarez Estevez b. Alvarez Gonzalez D. Álvarez Piqueras M. G. Alviggi Y. Amaral Coutinho A. Amb.er L. Amb.oz C. Amelung D. Amidei S. P. Amor Dos Santos S. Amoroso C. S. Amrouche F. An C. Anastopoulos N. Andari T. Andeen C. F. Anders J. K. Anders A. Andreazza V. Andrei C. R. Anelli S. Angelidakis I. Angelozzi A. Angerami A. V. Anisenkov A. Annovi C. Antel M. T. Anthony M. Antonelli D. J. A. Antrim F. Anulli M. Aoki J. A. Aparisi Pozo L. Aperio b.lla G. Arab.dze J. P. Araque V. Araujo Ferraz R. Araujo Pereira A. T. H. Arce F. A. Arduh J-F. Arguin S. Argyropoulos J.-H. Arling A. J. Armb.uster L. J. Armitage A. Armstrong O. Arnaez H. Arnold A. Artamonov G. Artoni S. Artz S. Asai N. A. Asb.h E. M. Asimakopoulou L. Asquith K. Assamagan R. Astalos R. J. Atkin M. Atkinson N. b. Atlay H. Atmani K. Augsten G. Avolio R. Avramidou M. K. Ayoub.A. M. Azoulay G. Azuelos A. E. b.as M. J. b.ca H. b.chacou K. b.chas M. b.ckes F. b.ckman P. b.gnaia H. b.hrasemani A. J. b.iley V. R. b.iley J. T. b.ines M. b.jic C. b.kalis O. K. b.ker P. J. b.kker D. b.kshi Gupta S. b.laji E. M. b.ldin P. b.lek F. b.lli W. K. b.lunas J. b.lz E. b.nas A. b.ndyopadhyay Sw. b.nerjee A. A. E. b.nnoura L. b.rak W. M. b.rb. E. L. b.rb.rio D. b.rb.ris M. b.rb.ro T. b.ri LPMR Faculté des Sciences Université Mohamed Premier Oujda Morocco CPPM Aix-Marseille Université CNRS/IN2P3 Marseille France Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Department of Physics University of Massachusetts Amherst Massachusetts USA Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan INFN Sezione di Pavia Italy Dipartimento di Fisica Università di Pavia Pavia Italy Department of Physics Royal Holloway University of London Egham United Kingdom Department of Physics University of Toronto Toronto ON Canada Niels Bohr Institute University of Copenhagen Copenhagen Denmark Department of Physics and Astronomy University of Sussex Brighton United Kingdom Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel Department of Physics Technion Israel Institute of Technology Haifa Israel High Energy Physics Division Argonne National Laboratory Argonne Illinois USA INFN Gruppo Collegato di Udine Sezione di Trieste Udine Italy ICTP Trieste Italy International Center for Elementary Particle Physics and Department of Physics University of Tokyo Tokyo Japan Institut für Physik Universität Mainz Mainz Germany IJCLab Université Paris-Saclay CNRS/IN2P3 91405 Orsay France AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Department of Physics Northern Illinois University DeKalb Illinois USA Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Department of Physics Bogazici University Istanbul Turkey Département de Physique Nucléaire et Corpusculaire Université de Genève Genève Switzerland Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Santa Cruz Institute for Particle Physics University of California Santa Cruz Santa Cruz California USA LPC Université Clermont Auvergne CNRS/IN2P3 Clermont-Ferrand France Institute for Mathema

The total cross section and differential cross sections for the production of b.± mesons, times their b.anching fraction to J/ψπ±, are measured relative to those for the production of b. mesons, times their b.anching fraction to J/ψK±. The data used for this study correspond to an integrated luminosity of 20.3 fb.1 of pp collisions recorded b. the ATLAS detector at the Large Hadron Collider in 2012 at a center-of-mass energy of s=8 TeV. The measurement is performed differentially in b.ns of transverse momentum pT for 13 GeVb.±)<22 GeV and pT(b.±)>22 GeV and in b.ns of rapidity y for |y|<0.75 and 0.75<|y|<2.3. The relative cross section times b.anching fraction for the full range pT>13 GeV and |y|<2.3 is (0.34±0.04stat −0.02+0.06sys±0.01lifetime)%. The differential measurements suggest that the production cross section of the b.± decreases faster with pT than the production cross section of the b., while no significant dependence on rapidity is ob.erved.

关键词： b.anching fraction Leptonic, semileptonic & radiative decays b.ttom mesons Charmed mesons

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Implementation of b.sic and Universal Gates In a single Circuit b.sed On Quantum-dot Cellular Automata Using Multi-Layer Crossb.r Wire

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IOP Conference Series: Materials science and engineering 2017年第1期225卷

作者： Dhrub.jyoti b.owmik Apu Kr Saha Paramartha Dutta Supratim Nandi Asst. Prof NITA CSE Dept. Asst. Prof NITA Math Dept Associate Prof Dept. of Computer and System Science Bisva-Bharati University B. Tech Dept. of CSE NITA

Quantum-dot Cellular Automata (QCA) is one of the most sub.titutes developing nanotechnologies for electronic circuits, as a result of lower force utilization, higher speed and smaller size in correlation with CMOS innovation. The essential devices, a Quantum-dot cell can b. utilized to logic gates and wires. As it is the key b.ilding b.ock on nanotechnology circuits. b. applying simple gates, the hardware requirements for a QCA circuit can b. decreased and circuits can b. less complex as far as level, delay and cell check. This article exhib.ts an unob.rusive methodology for actualizing novel upgraded simple and universal gates, which can b. connected to outline numerous variations of complex QCA circuits. Proposed gates are straightforward in structure and capab.e as far as implementing any digital circuits. The main aim is to b.ild all b.sic and universal gates in a simple circuit with and without crossb.r-wire. Simulation results and physical relations affirm its handiness in actualizing each advanced circuit.

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Search for long-lived particles decaying to jets with displaced vertices in proton-proton collisions at s=13 TeV

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Physical Review D 2021年第5期104卷 052011-052011页

作者： A. M. Sirunyan A. Tumasyan W. Adam T. b.rgauer M. Dragicevic A. Escalante Del Valle R. Frühwirth M. Jeitler N. Krammer L. Lechner D. Liko I. Mikulec F. M. Pitters J. Schieck R. Schöfb.ck M. Spanring S. Templ W. Waltenb.rger C.-E. Wulz M. Zarucki V. Chekhovsky A. Litomin V. Makarenko M. R. Darwish E. A. De Wolf X. Janssen T. Kello A. Lelek H. Rejeb.Sfar P. Van Mechelen S. Van Putte N. Van Remortel F. b.ekman E. S. b.ls J. D’Hondt J. De Clercq S. Lowette S. Moortgat A. Morton D. Müller A. R. Sahasransu S. Tavernier W. Van Doninck P. Van Mulders D. b.ghin b. b.lin b. Clerb.ux G. De Lentdecker b. Dorney L. Favart A. Greb.nyuk A. K. Kalsi K. Lee I. Makarenko L. Moureaux L. Pétré A. Popov N. Postiau E. Starling L. Thomas C. Vander Velde P. Vanlaer D. Vannerom L. Wezenb.ek T. Cornelis D. Dob.r M. Gruchala I. Khvastunov G. Mestdach M. Niedziela C. Roskas K. Skovpen M. Tytgat W. Verb.ke b. Vermassen M. Vit A. b.thani G. b.uno F. b.ry C. Caputo P. David C. Delaere M. Delcourt I. S. Donertas A. Giammanco V. Lemaitre K. Mondal J. Prisciandaro A. Taliercio M. Teklishyn P. Vischia S. Wertz S. Wuyckens G. A. Alves C. Hensel A. Moraes W. L. Aldá Júnior E. b.lchior b.tista Das Chagas H. b.andao Malb.uisson W. Carvalho J. Chinellato E. Coelho E. M. Da Costa G. G. Da Silveira D. De Jesus Damiao S. Fonseca De Souza J. Martins D. Matos Figueiredo C. Mora Herrera L. Mundim H. Nogima P. Reb.llo Teles L. J. Sanchez Rosas A. Santoro S. M. Silva Do Amaral A. Sznajder M. Thiel F. Torres Da Silva De Araujo A. Vilela Pereira C. A. b.rnardes L. Calligaris T. R. Fernandez Perez Tomei E. M. Gregores D. S. Lemos P. G. Mercadante S. F. Novaes Sandra S. Padula A. Aleksandrov G. Antchev I. Atanasov R. Hadjiiska P. Iaydjiev M. Misheva M. Rodozov M. Shopova G. Sultanov A. Dimitrov T. Ivanov L. Litov b. Pavlov P. Petkov A. Petrov T. Cheng W. Fang Q. Guo M. Mittal H. Wang L. Yuan M. Ahmad G. b.uer Z. Hu Y. Wang K. Yi E. Chapon G. M. Chen H. S. Chen M. Chen T. Javaid A. Kapoor D. Leggat H. Liao Z.-A. Liu R. Sharma A. Spiezia J. Tao J. Thomas-Wilsker J. Yerevan Physics Institute Yerevan Armenia Institut für Hochenergiephysik Wien Austria Institute for Nuclear Problems Minsk Belarus Universiteit Antwerpen Antwerpen Belgium Vrije Universiteit Brussel Brussel Belgium Université Libre de Bruxelles Bruxelles Belgium Korea University Seoul Korea Ghent University Ghent Belgium Université Catholique de Louvain Louvain-la-Neuve Belgium Centro Brasileiro de Pesquisas Fisicas Rio de Janeiro Brazil Universidade do Estado do Rio de Janeiro Rio de Janeiro Brazil Universidade Estadual Paulista São Paulo Brazil Universidade Federal do ABC São Paulo Brazil Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences Sofia Bulgaria University of Sofia Sofia Bulgaria Beihang University Beijing China Rutgers The State University of New Jersey Piscataway New Jersey USA Department of Physics Tsinghua University Beijing China Institute of High Energy Physics Beijing China Massachusetts Institute of Technology Cambridge Massachusetts USA State Key Laboratory of Nuclear Physics and Technology Peking University Beijing China The University of Kansas Lawrence Kansas USA Sun Yat-Sen University Guangzhou China Institute of Modern Physics and Key Laboratory of Nuclear Physics and Ion-beam Application (MOE)—Fudan University Shanghai China Zhejiang University Hangzhou China Universidad de Los Andes Bogota Colombia Universidad de Antioquia Medellin Colombia University of Split Faculty of Electrical Engineering Mechanical Engineering and Naval Architecture Split Croatia University of Split Faculty of Science Split Croatia Institute Rudjer Boskovic Zagreb Croatia University of Cyprus Nicosia Cyprus Charles University Prague Czech Republic Escuela Politecnica Nacional Quito Ecuador Universidad San Francisco de Quito Quito Ecuador Academy of Scientific Research and Technology of the Arab Republic of Egypt Egyptian Network of High Energy Physics Cairo Egypt Center for High Energy Physics (CHEP-FU) Fa

A search is presented for long-lived particles produced in pairs in proton-proton collisions at the LHC operating at a center-of-mass energy of 13 TeV. The data were collected with the CMS detector during the period from 2015 through 2018, and correspond to a total integrated luminosity of 140 fb.1. This search targets pairs of long-lived particles with mean proper decay lengths b.tween 0.1 and 100 mm, each of which decays into at least two quarks that hadronize to jets, resulting in a final state with two displaced vertices. No significant excess of events with two displaced vertices is ob.erved. In the context of R-parity violating supersymmetry models, the pair production of long-lived neutralinos, gluinos, and top squarks is excluded at 95% confidence level for cross sections larger than 0.08 fb. masses b.tween 800 and 3000 GeV, and mean proper decay lengths b.tween 1 and 25 mm.

关键词： Hypothetical particle physics models Supersymmetric models Hadron colliders

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Measurement of the electroweak production of Zγ and two jets in proton-proton collisions at s=13 TeV and constraints on anomalous quartic gauge couplings

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Physical Review D 2021年第7期104卷 072001-072001页

作者： A. Tumasyan W. Adam J. W. Andrejkovic T. b.rgauer S. Chatterjee M. Dragicevic A. Escalante Del Valle R. Frühwirth M. Jeitler N. Krammer L. Lechner D. Liko I. Mikulec P. Paulitsch F. M. Pitters J. Schieck R. Schöfb.ck M. Spanring S. Templ W. Waltenb.rger C.-E. Wulz V. Chekhovsky A. Litomin V. Makarenko M. R. Darwish E. A. De Wolf T. Janssen T. Kello A. Lelek H. Rejeb.Sfar P. Van Mechelen S. Van Putte N. Van Remortel F. b.ekman E. S. b.ls J. D’Hondt M. Delcourt H. El Faham S. Lowette S. Moortgat A. Morton D. Müller A. R. Sahasransu S. Tavernier W. Van Doninck P. Van Mulders D. b.ghin b. b.lin b. Clerb.ux G. De Lentdecker L. Favart A. Greb.nyuk A. K. Kalsi K. Lee M. Mahdavikhorrami I. Makarenko L. Moureaux L. Pétré A. Popov N. Postiau E. Starling L. Thomas M. Vanden b.mden C. Vander Velde P. Vanlaer D. Vannerom L. Wezenb.ek T. Cornelis D. Dob.r J. Knolle L. Lamb.echt G. Mestdach M. Niedziela C. Roskas A. Samalan K. Skovpen M. Tytgat W. Verb.ke b. Vermassen M. Vit A. b.thani G. b.uno F. b.ry C. Caputo P. David C. Delaere I. S. Donertas A. Giammanco K. Jaffel Sa. Jain V. Lemaitre K. Mondal J. Prisciandaro A. Taliercio M. Teklishyn T. T. Tran P. Vischia S. Wertz G. A. Alves C. Hensel A. Moraes W. L. Aldá Júnior M. Alves Gallo Pereira M. b.rroso Ferreira Filho H. b.andao Malb.uisson W. Carvalho J. Chinellato E. M. Da Costa G. G. Da Silveira D. De Jesus Damiao S. Fonseca De Souza D. Matos Figueiredo C. Mora Herrera K. Mota Amarilo L. Mundim H. Nogima P. Reb.llo Teles A. Santoro S. M. Silva Do Amaral A. Sznajder M. Thiel F. Torres Da Silva De Araujo A. Vilela Pereira C. A. b.rnardes L. Calligaris T. R. Fernandez Perez Tomei E. M. Gregores D. S. Lemos P. G. Mercadante S. F. Novaes Sandra S. Padula A. Aleksandrov G. Antchev R. Hadjiiska P. Iaydjiev M. Misheva M. Rodozov M. Shopova G. Sultanov A. Dimitrov T. Ivanov L. Litov b. Pavlov P. Petkov A. Petrov T. Cheng Q. Guo T. Javaid M. Mittal H. Wang L. Yuan M. Ahmad G. b.uer C. Dozen Z. Hu J. Martins Y. Wang K. Yi E. Chapon G. M. Chen H. S. Chen M. Chen F. Iemmi A. Kapoor D. Le Yerevan Physics Institute Yerevan Armenia Institut für Hochenergiephysik Wien Austria Institute for Nuclear Problems Minsk Belarus Universiteit Antwerpen Antwerpen Belgium Vrije Universiteit Brussel Brussel Belgium Université Libre de Bruxelles Bruxelles Belgium Korea University Seoul Korea Ghent University Ghent Belgium Université Catholique de Louvain Louvain-la-Neuve Belgium Centro Brasileiro de Pesquisas Fisicas Rio de Janeiro Brazil Universidade do Estado do Rio de Janeiro Rio de Janeiro Brazil Universidade Estadual Paulista São Paulo Brazil Universidade Federal do ABC São Paulo Brazil Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences Sofia Bulgaria University of Sofia Sofia Bulgaria Beihang University Beijing China Rutgers The State University of New Jersey Piscataway New Jersey USA Department of Physics Tsinghua University Beijing China Institute of High Energy Physics Beijing China Massachusetts Institute of Technology Cambridge Massachusetts USA State Key Laboratory of Nuclear Physics and Technology Peking University Beijing China The University of Kansas Lawrence Kansas USA Sun Yat-Sen University Guangzhou China Institute of Modern Physics and Key Laboratory of Nuclear Physics and Ion-beam Application (MOE)—Fudan University Shanghai China Zhejiang University Hangzhou China Universidad de Los Andes Bogota Colombia Universidad de Antioquia Medellin Colombia University of Split Faculty of Electrical Engineering Mechanical Engineering and Naval Architecture Split Croatia University of Split Faculty of Science Split Croatia Institute Rudjer Boskovic Zagreb Croatia University of Cyprus Nicosia Cyprus Charles University Prague Czech Republic Escuela Politecnica Nacional Quito Ecuador Universidad San Francisco de Quito Quito Ecuador Academy of Scientific Research and Technology of the Arab Republic of Egypt Egyptian Network of High Energy Physics Cairo Egypt Center for High Energy Physics (CHEP-FU) Fa

The first ob.ervation of the electroweak (EW) production of a Z b.son, a photon, and two forward jets (Zγjj) in proton-proton collisions at a center-of-mass energy of 13 TeV is presented. A data set corresponding to an integrated luminosity of 137 fb.1, collected b. the CMS experiment at the LHC in 2016–2018 is used. The measured fiducial cross section for EW Zγjj is σEW=5.21±0.52(stat)±0.56(syst) fb.5.21±0.76 fb. Single-differential cross sections in photon, leading lepton, and leading jet transverse momenta, and doub.e-differential cross sections in mjj and |Δηjj| are also measured. Exclusion limits on anomalous quartic gauge couplings are derived at 95% confidence level in terms of the effective field theory operators M0 to M5, M7, T0 to T2, and T5 to T9.

关键词： Photons W & Z b.sons Hadron colliders

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Measurement of differential tt¯ production cross sections in the full kinematic range using lepton+jets events from proton-proton collisions at s=13 TeV

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Physical Review D 2021年第9期104卷 092013-092013页

作者： A. Tumasyan W. Adam J. W. Andrejkovic T. b.rgauer S. Chatterjee M. Dragicevic A. Escalante Del Valle R. Frühwirth M. Jeitler N. Krammer L. Lechner D. Liko I. Mikulec P. Paulitsch F. M. Pitters J. Schieck R. Schöfb.ck M. Spanring S. Templ W. Waltenb.rger C.-E. Wulz V. Chekhovsky A. Litomin V. Makarenko M. R. Darwish E. A. De Wolf T. Janssen T. Kello A. Lelek H. Rejeb.Sfar P. Van Mechelen S. Van Putte N. Van Remortel F. b.ekman E. S. b.ls J. D’Hondt M. Delcourt H. El Faham S. Lowette S. Moortgat A. Morton D. Müller A. R. Sahasransu S. Tavernier W. Van Doninck P. Van Mulders D. b.ghin b. b.lin b. Clerb.ux G. De Lentdecker L. Favart A. Greb.nyuk A. K. Kalsi K. Lee M. Mahdavikhorrami I. Makarenko L. Moureaux L. Pétré A. Popov N. Postiau E. Starling L. Thomas M. Vanden b.mden C. Vander Velde P. Vanlaer D. Vannerom L. Wezenb.ek T. Cornelis D. Dob.r J. Knolle L. Lamb.echt G. Mestdach M. Niedziela C. Roskas A. Samalan K. Skovpen M. Tytgat b. Vermassen M. Vit A. b.thani G. b.uno F. b.ry C. Caputo P. David C. Delaere I. S. Donertas A. Giammanco K. Jaffel Sa. Jain V. Lemaitre K. Mondal J. Prisciandaro A. Taliercio M. Teklishyn T. T. Tran P. Vischia S. Wertz G. A. Alves C. Hensel A. Moraes W. L. Aldá Júnior M. Alves Gallo Pereira M. b.rroso Ferreira Filho H. b.andao Malb.uisson W. Carvalho J. Chinellato E. M. Da Costa G. G. Da Silveira D. De Jesus Damiao S. Fonseca De Souza D. Matos Figueiredo C. Mora Herrera K. Mota Amarilo L. Mundim H. Nogima P. Reb.llo Teles A. Santoro S. M. Silva Do Amaral A. Sznajder M. Thiel F. Torres Da Silva De Araujo A. Vilela Pereira C. A. b.rnardes L. Calligaris T. R. Fernandez Perez Tomei E. M. Gregores D. S. Lemos P. G. Mercadante S. F. Novaes Sandra S. Padula A. Aleksandrov G. Antchev R. Hadjiiska P. Iaydjiev M. Misheva M. Rodozov M. Shopova G. Sultanov A. Dimitrov T. Ivanov L. Litov b. Pavlov P. Petkov A. Petrov T. Cheng Q. Guo T. Javaid M. Mittal H. Wang L. Yuan M. Ahmad G. b.uer C. Dozen Z. Hu J. Martins Y. Wang K. Yi E. Chapon G. M. Chen H. S. Chen M. Chen F. Iemmi A. Kapoor D. Leggat H. Lia Yerevan Physics Institute Yerevan Armenia Institut für Hochenergiephysik Vienna Austria Institute for Nuclear Problems Minsk Belarus Universiteit Antwerpen Antwerpen Belgium Vrije Universiteit Brussel Brussel Belgium Université Libre de Bruxelles Bruxelles Belgium Korea University Seoul Korea Ghent University Ghent Belgium Université Catholique de Louvain Louvain-la-Neuve Belgium Centro Brasileiro de Pesquisas Fisicas Rio de Janeiro Brazil Universidade do Estado do Rio de Janeiro Rio de Janeiro Brazil Universidade Estadual Paulista São Paulo Brazil Universidade Federal do ABC São Paulo Brazil Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences Sofia Bulgaria University of Sofia Sofia Bulgaria Beihang University Beijing China Rutgers The State University of New Jersey Piscataway New Jersey USA Department of Physics Tsinghua University Institute of High Energy Physics Beijing China Massachusetts Institute of Technology Cambridge Massachusetts USA State Key Laboratory of Nuclear Physics and Technology Peking University Beijing China The University of Kansas Lawrence Kansas USA Sun Yat-Sen University Guangzhou China Institute of Modern Physics and Key Laboratory of Nuclear Physics and Ion-beam Application (MOE)—Fudan University Shanghai China Zhejiang University Hangzhou China Universidad de Los Andes Bogota Colombia Universidad de Antioquia Medellin Colombia University of Split Faculty of Electrical Engineering Mechanical Engineering and Naval Architecture Split Croatia University of Split Faculty of Science Split Croatia Institute Rudjer Boskovic Zagreb Croatia University of Cyprus Nicosia Cyprus Charles University Prague Czech Republic Escuela Politecnica Nacional Quito Ecuador Universidad San Francisco de Quito Quito Ecuador Academy of Scientific Research and Technology of the Arab Republic of Egypt Egyptian Network of High Energy Physics Cairo Egypt Center for High Energy Physics (CHEP-FU) Fayoum Universit

Measurements of differential and doub.e-differential cross sections of top-quark pair (tt¯) production are presented in the lepton+jets channels with a single electron or muon and jets in the final state. The analysis comb.nes for the first time signatures of top quarks with low transverse momentum pT, where the top-quark decay products can b. identified as separated jets and isolated leptons, and with high pT, where the decay products are collimated and overlap. The measurements are b.sed on proton-proton collision data at s=13 TeV collected b. the CMS experiment at the LHC, corresponding to an integrated luminosity of 137 fb.1. The cross sections are presented at the parton and particle levels, where the latter minimizes extrapolations b.sed on theoretical assumptions. Most of the measured differential cross sections are well describ.d b. standard model predictions with the exception of some doub.e-differential distrib.tions. The inclusive tt¯ production cross section is measured to b. σtt¯=791±25 pb. which constitutes the most precise measurement in the lepton+jets channel to date.

关键词： Particle production Top quark Hadron colliders

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Search for lepton-flavor violating decays of the Higgs b.son in the μτ and eτ final states in proton-proton collisions at s=13 TeV

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Physical Review D 2021年第3期104卷 032013-032013页

作者： A. M. Sirunyan A. Tumasyan W. Adam J. W. Andrejkovic T. b.rgauer S. Chatterjee M. Dragicevic A. Escalante Del Valle R. Frühwirth M. Jeitler N. Krammer L. Lechner D. Liko I. Mikulec P. Paulitsch F. M. Pitters J. Schieck R. Schöfb.ck M. Spanring S. Templ W. Waltenb.rger C.-E. Wulz V. Chekhovsky A. Litomin V. Makarenko M. R. Darwish E. A. De Wolf X. Janssen T. Kello A. Lelek H. Rejeb.Sfar P. Van Mechelen S. Van Putte N. Van Remortel F. b.ekman E. S. b.ls J. D’Hondt J. De Clercq M. Delcourt H. El Faham S. Lowette S. Moortgat A. Morton D. Müller A. R. Sahasransu S. Tavernier W. Van Doninck P. Van Mulders D. b.ghin b. b.lin b. Clerb.ux G. De Lentdecker L. Favart A. Greb.nyuk A. K. Kalsi K. Lee M. Mahdavikhorrami I. Makarenko L. Moureaux L. Pétré A. Popov N. Postiau E. Starling L. Thomas M. Vanden b.mden C. Vander Velde P. Vanlaer D. Vannerom L. Wezenb.ek T. Cornelis D. Dob.r J. Knolle L. Lamb.echt G. Mestdach M. Niedziela C. Roskas A. Samalan K. Skovpen T. T. Tran M. Tytgat W. Verb.ke b. Vermassen M. Vit A. b.thani G. b.uno F. b.ry C. Caputo P. David C. Delaere I. S. Donertas A. Giammanco K. Jaffel V. Lemaitre K. Mondal J. Prisciandaro A. Taliercio M. Teklishyn P. Vischia S. Wertz S. Wuyckens G. A. Alves C. Hensel A. Moraes W. L. Aldá Júnior M. Alves Gallo Pereira M. b.rroso Ferreira Filho H. b.andao Malb.uisson W. Carvalho J. Chinellato E. M. Da Costa G. G. Da Silveira D. De Jesus Damiao S. Fonseca De Souza D. Matos Figueiredo C. Mora Herrera K. Mota Amarilo L. Mundim H. Nogima P. Reb.llo Teles A. Santoro S. M. Silva Do Amaral A. Sznajder M. Thiel F. Torres Da Silva De Araujo A. Vilela Pereira C. A. b.rnardes L. Calligaris T. R. Fernandez Perez Tomei E. M. Gregores D. S. Lemos P. G. Mercadante S. F. Novaes Sandra S. Padula A. Aleksandrov G. Antchev R. Hadjiiska P. Iaydjiev M. Misheva M. Rodozov M. Shopova G. Sultanov A. Dimitrov T. Ivanov L. Litov b. Pavlov P. Petkov A. Petrov T. Cheng W. Fang Q. Guo T. Javaid M. Mittal H. Wang L. Yuan M. Ahmad G. b.uer C. Dozen Z. Hu J. Martins Y. Wang K. Yi E. Chapon G. M. Chen H. S Yerevan Physics Institute Yerevan Armenia Institut für Hochenergiephysik Wien Austria Institute for Nuclear Problems Minsk Belarus Universiteit Antwerpen Antwerpen Belgium Vrije Universiteit Brussel Brussel Belgium Université Libre de Bruxelles Bruxelles Belgium Korea University Seoul Korea Ghent University Ghent Belgium Université Catholique de Louvain Louvain-la-Neuve Belgium Centro Brasileiro de Pesquisas Fisicas Rio de Janeiro Brazil Universidade do Estado do Rio de Janeiro Rio de Janeiro Brazil Universidade Estadual Paulista São Paulo Brazil Universidade Federal do ABC São Paulo Brazil Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences Sofia Bulgaria University of Sofia Sofia Bulgaria Beihang University Beijing China Rutgers The State University of New Jersey Piscataway New Jersey USA Department of Physics Tsinghua University Beijing China Institute of High Energy Physics Beijing China Massachusetts Institute of Technology Cambridge Massachusetts USA State Key Laboratory of Nuclear Physics and Technology Peking University Beijing China The University of Kansas Lawrence Kansas USA Sun Yat-Sen University Guangzhou China Institute of Modern Physics and Key Laboratory of Nuclear Physics and Ion-beam Application (MOE)—Fudan University Shanghai China Zhejiang University Hangzhou China Universidad de Los Andes Bogota Colombia Universidad de Antioquia Medellin Colombia University of Split Faculty of Electrical Engineering Mechanical Engineering and Naval Architecture Split Croatia University of Split Faculty of Science Split Croatia Institute Rudjer Boskovic Zagreb Croatia University of Cyprus Nicosia Cyprus Charles University Prague Czech Republic Escuela Politecnica Nacional Quito Ecuador Universidad San Francisco de Quito Quito Ecuador Academy of Scientific Research and Technology of the Arab Republic of Egypt Egyptian Network of High Energy Physics Cairo Egypt Center for High Energy Physics (CHEP-FU) Fa

A search is presented for lepton-flavor violating decays of the Higgs b.son to μτ and eτ. The dataset corresponds to an integrated luminosity of 137 fb.1 collected at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV. No significant excess has b.en found, and the results are interpreted in terms of upper limits on lepton-flavor violating b.anching fractions of the Higgs b.son. The ob.erved (expected) upper limits on the b.anching fractions are, respectively, b.H→μτ)<0.15(0.15)% and b.H→eτ)<0.22(0.16)% at 95% confidence level.

关键词： Particle decays Higgs b.sons Hadron colliders

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Search for long-lived particles using displaced jets in proton-proton collisions at s=13 TeV

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Physical Review D 2021年第1期104卷 012015-012015页

作者： A. M. Sirunyan A. Tumasyan W. Adam F. Amb.ogi T. b.rgauer M. Dragicevic J. Erö A. Escalante Del Valle R. Frühwirth M. Jeitler N. Krammer L. Lechner D. Liko T. Madlener I. Mikulec F. M. Pitters N. Rad J. Schieck R. Schöfb.ck M. Spanring S. Templ W. Waltenb.rger C.-E. Wulz M. Zarucki V. Chekhovsky A. Litomin V. Makarenko J. Suarez Gonzalez M. R. Darwish E. A. De Wolf D. Di Croce X. Janssen T. Kello A. Lelek M. Pieters H. Rejeb.Sfar H. Van Haevermaet P. Van Mechelen S. Van Putte N. Van Remortel F. b.ekman E. S. b.ls S. S. Chhib.a J. D’Hondt J. De Clercq D. Lontkovskyi S. Lowette I. Marchesini S. Moortgat A. Morton Q. Python S. Tavernier W. Van Doninck P. Van Mulders D. b.ghin b. b.lin b. Clerb.ux G. De Lentdecker b. Dorney L. Favart A. Greb.nyuk A. K. Kalsi I. Makarenko L. Moureaux L. Pétré A. Popov N. Postiau E. Starling L. Thomas C. Vander Velde P. Vanlaer D. Vannerom L. Wezenb.ek T. Cornelis D. Dob.r M. Gruchala I. Khvastunov M. Niedziela C. Roskas K. Skovpen M. Tytgat W. Verb.ke b. Vermassen M. Vit G. b.uno F. b.ry C. Caputo P. David C. Delaere M. Delcourt I. S. Donertas A. Giammanco V. Lemaitre K. Mondal J. Prisciandaro A. Taliercio M. Teklishyn P. Vischia S. Wuyckens J. Zob.c G. A. Alves G. Correia Silva C. Hensel A. Moraes W. L. Aldá Júnior E. b.lchior b.tista Das Chagas H. b.andao Malb.uisson W. Carvalho J. Chinellato E. Coelho E. M. Da Costa G. G. Da Silveira D. De Jesus Damiao S. Fonseca De Souza J. Martins D. Matos Figueiredo M. Medina Jaime M. Melo De Almeida C. Mora Herrera L. Mundim H. Nogima P. Reb.llo Teles L. J. Sanchez Rosas A. Santoro S. M. Silva Do Amaral A. Sznajder M. Thiel E. J. Tonelli Manganote F. Torres Da Silva De Araujo A. Vilela Pereira C. A. b.rnardes L. Calligaris T. R. Fernandez Perez Tomei E. M. Gregores D. S. Lemos P. G. Mercadante S. F. Novaes Sandra S. Padula A. Aleksandrov G. Antchev I. Atanasov R. Hadjiiska P. Iaydjiev M. Misheva M. Rodozov M. Shopova G. Sultanov M. b.nchev A. Dimitrov T. Ivanov L. Litov b. Pavlov P. Petkov A. Petrov W. Fang Q. Guo H. Wang L. Yuan M. Ahmad Z. Hu Yerevan Physics Institute Yerevan Armenia Institut für Hochenergiephysik Wien Austria Institute for Nuclear Problems Minsk Belarus Universiteit Antwerpen Antwerpen Belgium Vrije Universiteit Brussel Brussel Belgium Université Libre de Bruxelles Bruxelles Belgium Ghent University Ghent Belgium Université Catholique de Louvain Louvain-la-Neuve Belgium Centro Brasileiro de Pesquisas Fisicas Rio de Janeiro Brazil Universidade do Estado do Rio de Janeiro Rio de Janeiro Brazil Universidade Estadual Paulista São Paulo Brazil Universidade Federal do ABC São Paulo Brazil Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences Sofia Bulgaria University of Sofia Sofia Bulgaria Beihang University Beijing China Rutgers The State University of New Jersey Piscataway New Jersey USA Department of Physics Tsinghua University Beijing China University of Virginia Charlottesville Virginia USA Institute of High Energy Physics Beijing China Massachusetts Institute of Technology Cambridge Massachusetts USA State Key Laboratory of Nuclear Physics and Technology Peking University Beijing China The University of Kansas Lawrence Kansas USA Sun Yat-Sen University Guangzhou China Institute of Modern Physics and Key Laboratory of Nuclear Physics and Ion-beam Application (MOE)—Fudan University Shanghai China Zhejiang University Hangzhou China Universidad de Los Andes Bogota Colombia Universidad de Antioquia Medellin Colombia University of Split Faculty of Electrical Engineering Mechanical Engineering and Naval Architecture Split Croatia University of Split Faculty of Science Split Croatia Institute Rudjer Boskovic Zagreb Croatia University of Cyprus Nicosia Cyprus Charles University Prague Czech Republic Escuela Politecnica Nacional Quito Ecuador Universidad San Francisco de Quito Quito Ecuador Academy of Scientific Research and Technology of the Arab Republic of Egypt Egyptian Network of High Energy Physics Cairo Egypt Center for High Ener

An inclusive search is presented for long-lived particles using displaced jets. The search uses a data sample collected with the CMS detector at the CERN LHC in 2017 and 2018, from proton-proton collisions at a center-of-mass energy of 13 TeV. The results of this search are comb.ned with those of a previous search using a data sample collected with the CMS detector in 2016, yielding a total integrated luminosity of 132 fb.1. The analysis searches for the distinctive topology of displaced tracks and displaced vertices associated with a dijet system. For a simplified model, where pair-produced long-lived neutral particles decay into quark-antiquark pairs, pair production cross sections larger than 0.07 fb.are excluded at 95% confidence level (C.L.) for long-lived particle masses larger than 500 GeV and mean proper decay lengths b.tween 2 and 250 mm. For a model where the standard model-like Higgs b.son decays to two long-lived scalar particles that each decays to a quark-antiquark pair, b.anching fractions larger than 1% are excluded at 95% C.L. for mean proper decay lengths b.tween 1 mm and 340 mm. A group of supersymmetric models with pair-produced long-lived gluinos or top squarks decaying into various final-state topologies containing displaced jets is also tested. Gluino masses up to 2500 GeV and top squark masses up to 1600 GeV are excluded at 95% C.L. for mean proper decay lengths b.tween 3 and 300 mm. The highest lower b.unds on mass reach 2600 GeV for long-lived gluinos and 1800 GeV for long-lived top squarks. These are the most stringent limits to date on these models.

关键词： Quark & gluon jets Hypothetical particles Hadron colliders

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