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A Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics

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arXiv 2022年

作者： Aalbers, J. Abe, K. Aerne, V. Agostini, F. Ahmed Maouloud, S. Akerib, D.S. Akimov, D.Yu. Akshat, J. Al Musalhi, A.K. Alder, F. Alsum, S.K. Althueser, L. Amarasinghe, C.S. Amaro, F.D. Ames, A. Anderson, T.J. Andrieu, B. Angelides, N. Angelino, E. Angevaare, J. Antochi, V.C. Antón Martin, D. Antunovic, B. Aprile, E. Araújo, H.M. Armstrong, J.E. Arneodo, F. Arthurs, M. Asadi, P. Baek, S. Bai, X. Bajpai, D. Baker, A. Balajthy, J. Balashov, S. Balzer, M. Bandyopadhyay, A. Bang, J. Barberio, E. Bargemann, J.W. Baudis, L. Bauer, D. Baur, D. Baxter, A. Baxter, A.L. Bazyk, M. Beattie, K. Behrens, J. Bell, N.F. Bellagamba, L. Beltrame, P. Benabderrahmane, M. Bernard, E.P. Bertone, G.F. Bhattacharjee, P. Bhatti, A. Biekert, A. Biesiadzinski, T.P. Binau, A.R. Biondi, R. Biondi, Y. Birch, H.J. Bishara, F. Bismark, A. Blanco, C. Blockinger, G.M. Bodnia, E. Boehm, C. Bolozdynya, A.I. Bolton, P.D. Bottaro, S. Bourgeois, C. Boxer, B. Brás, P. Breskin, A. Breur, P.A. Brew, C.A.J. Brod, J. Brookes, E. Brown, A. Brown, E. Bruenner, S. Bruno, G. Budnik, R. Bui, T.K. Burdin, S. Buse, S. Busenitz, J.K. Buttazzo, D. Buuck, M. Buzulutskov, A. Cabrita, R. Cai, C. Cai, D. Capelli, C. Cardoso, J.M.R. Carmona-Benitez, M.C. Cascella, M. Catena, R. Chakraborty, S. Chan, C. Chang, S. Chauvin, A. Chawla, A. Chen, H. Chepel, V. Chott, N.I. Cichon, D. Cimental Chavez, A. Cimmino, B. Clark, M. Co, R.T. Colijn, A.P. Conrad, J. Converse, M.V. Costa, M. Cottle, A. Cox, G. Creaner, O. Cuenca Garcia, J.J. Cussonneau, J.P. Cutter, J.E. Dahl, C.E. D'Andrea, V. David, A. Decowski, M.P. Dent, J.B. Deppisch, F.F. de Viveiros, L. Di Gangi, P. Di Giovanni, A. Di Pede, S. Dierle, J. Diglio, S. Dobson, J.E.Y. Doerenkamp, M. Douillet, D. Drexlin, G. Druszkiewicz, E. Dunsky, D. Eitel, K. Elykov, A. Emken, T. Engel, R. Eriksen, S.R. Fairbairn, M. Fan, A. Fan, J.J. Farrell, S.J. Fayer, S. Fearon, N.M. Ferella, A. Ferrari, C. Fieguth, A. Fieguth, A. Fiorucci, S. SLAC National Accelerator Laboratory Menlo ParkCA94025 United States Kavli Institute for Particle Astrophysics and Cosmology Stanford University StanfordCA94305 United States Kamioka Observatory Institute for Cosmic Ray Research The University of Tokyo Higashi-Mozumi Kamioka Hida Gifu506-1205 Japan The University of Tokyo Kashiwa Chiba277-8582 Japan Physik-Institut University of Zurich Zurich8057 Switzerland Department of Physics and Astronomy University of Bologna INFN-Bologna Bologna40126 Italy LPNHE Sorbonne Université CNRS IN2P3 Paris75005 France Moscow115409 Russia Department of Physics and Astronomy Purdue University West LafayetteIN47907 United States Department of Physics University of Oxford Keble Rd OxfordOX1 3RH United Kingdom Department of Physics and Astronomy University College London LondonWC1E 6BT United Kingdom Department of Physics University of Wisconsin-Madison MadisonWI53706 United States Institut für Kernphysik Westfälische Wilhelms-Universität Münster Münster48149 Germany University of Michigan Randall Laboratory of Physics Ann ArborMI48109 United States LIBPhys Department of Physics University of Coimbra Coimbra3004-516 Portugal Department of Physics Blackett Laboratory Imperial College London LondonSW7 2BW United Kingdom INAF-Astrophysical Observatory of Torino Department of Physics University of Torino INFN-Torino Torino10125 Italy Nikhef The University of Amsterdam Science Park Amsterdam1098XG Netherlands Oskar Klein Centre Department of Physics Stockholm University AlbaNova StockholmSE-10691 Sweden Department of Physics Kavli Institute for Cosmological Physics The University of Chicago ChicagoIL60637 United States Vinca Institute of Nuclear Science University of Belgrade Mihajla Petrovica Alasa 12-14 Belgrade Serbia Faculty of Architecture Civil Engineering and Geodesy University of Banja Luka Bulevar vojvode Petra Bojovica 1a Banja Luka78000 Bosnia and Herzegovina Physics D

The nature of dark matter and properties of neutrinos are among the most pressing issues in contemporary particle physics. The dual-phase xenon time-projection chamber is the leading technology to cover the available parameter space for Weakly Interacting Massive Particles (WIMPs), while featuring extensive sensitivity to many alternative dark matter candidates. These detectors can also study neutrinos through neutrinoless double-beta decay and through a variety of astrophysical sources. A next-generation xenon-based detector will therefore be a true multi-purpose observatory to significantly advance particle physics, nuclear physics, astrophysics, solar physics, and cosmology. This review article presents the science cases for such a detector. © 2022, CC BY.

关键词： Dark Matter

Integration of lean construction and building information modeling in a large client organization in Massachusetts 25

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Integration of lean construction and building information mo...

25th Annual Conference of the International Group for Lean Construction, IGLC 2017

作者： Bolpagni, Marzia Burdi, Luciana Ciribini, Angelo Luigi Camillo Department of Architecture Built Environment and Construction Engineering Politecnico di Milano Milano Italy Department of Civil and Environmental Engineering Worcester Polytechnic Institute WorcesterMA United States Department of Civil Environmental Architectural Engineering and Mathematics University of Brescia Brescia Italy

Recently the construction industry has started to study and implement together Lean Construction (Lean) and Building Information Modeling (BIM) to better manage projects. Previous research findings suggest that several changes in the work practice and business processes are needed to fully take advantage of BIM and Lean. Even if the client's role is very important to drive the entire process, the literature lacks of comprehensive examples of client's implementation. The paper shows how a large client organization is integrating Lean and BIM in real projects and how it is possible to measure it thanks to a Maturity Matrix. The research is based on a case study involving both active participation and interviews. The main results indicate that a) internal change is needed in the client organization;b) clients need to drive the process in order to maximise benefits;c) BIM does not fit in the traditional procurement process;and d) existing contracts need to be modified to support BIM and Lean. Research findings are useful for large client organizations that would like to integrate BIM and Lean in their operational strategy as well as for researchers. Further studies could be done to compare the work of different client organizations.

关键词： Construction industry

The implementation of building information modelling and lean construction in design firms in Massachusetts 25

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The implementation of building information modelling and lea...

25th Annual Conference of the International Group for Lean Construction, IGLC 2017

It is not easy to evaluate Building Information Modelling (BIM) and Lean Construction (Lean) capabilities of design firms. The paper investigates the level of BIM and Lean implementation at representative design firms in Massachusetts. A survey was given to the principal design firms working for a large public client. First, answers were analysed and discussed. Second, results from the same design firm were compared to detect possible inconsistencies. Main results show that there is still not a clear definition of BIM and Lean;BIM training is not done consistently within design firms;and there is not a common understanding of BIM and Lean within each design firm, even though most designers affirmed that they have internal standards. Results of the survey could be useful for designers to develop internal standards and establish training courses for the design firm and clients to better understand designers' approach to BIM and Lean.

关键词： Surveys

Determining the properties of green laterized concrete with fly ash for sustainable solid waste management

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Chemical engineering Transactions 2018年 63卷 649-654页

作者： Ogunbode, Ezekiel Babatunde Egba, Ernest Ituma Olaiju, Olusegun Adeyemi Johnson, Charles Nimibofa Amusuk, Danboyi Joseph Dodo, Yakubu Aminu Department of Building Federal University of Technology Minna Niger State Nigeria Department of Technology and Vocational Education Ebonyi State University Abakaliki Ebonyi State Nigeria Department of Mathematics and Statistics Federal Polytechnic Ilaro Ogun State Nigeria Faculty of Engineering Niger Delta University Bayelsa State Nigeria Department of Surveying and Geoinformatics Waziri Umaru Federal Polytechnic Birnin Kebbi Kebbi State Nigeria Department of Architecture Faculty of Built Environment Universiti Teknologi Malaysia Malaysia

ISBN: (纸本)9788895608617

Fly ash is an industrial solid waste that has found application in concrete production for minimization of CO2 emission. The introduction of fly ash into concrete and the replacement of the conventional fine aggregate with laterite can be viewed as an attempt to convert industrial waste material cum locally available fine aggregate to a purposeful use. This paper presents the results of a comprehensive experimental investigation on the strength characteristics of green laterized concrete with fly ash. The physical and chemical properties of fly ash and laterite were studied to evaluate its possible influence on both fresh and hardened state of cement and laterized concrete. A total of 120 cubes of 100 mm dimensions were cast and cured in water for 7, 14, 21, 28 and 56 d of hydration. The results show that the 28 d density dropped from 2467 kg/m3 to 2300 kg/m3 and the compressive strength from 21.94 N/mm2 to 15.02 N/mm2 for 20 % of fly ash content with 0 % - 30 % laterite introduced. The compressive strength decrease with increase in laterite content;the strength of the laterized concrete increases as the curing age progresses. Copyright © 2018, AIDIC Servizi S.r.l.

关键词： Fly ash

A FIWARE-Based Component for Data Analysis in Smart Mobility Context 1

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A FIWARE-Based Component for Data Analysis in Smart Mobility...

1st IEEE Summer School on Smart Cities, S3C 2017

作者： De Fatima Pereira Marquesone, Rosangela De Brito Carvalho, Tereza Cristina Melo Guimaraes, Lucas Batista Dias, Eduardo Mario Laboratory of Computer Networks and Architecture LARC Polytechnic School University of São Paulo São Paulo Brazil Department of Energy Engineering and Automation Polytechnic University of São Paulo São Paulo Brazil

ISBN: (纸本)9781538610633

Smart mobility is an emerging concept characterized by the use of disruptive technologies, such as cloud computing, Big Data and artificial intelligence. In this paper we propose a FIWARE-based component focus on improving the data analysis process, from data generated in services and applications existing in the smart mobility context. Our proposal aims to provide features that allows the development of solutions from the industry 4.0 concept and smart cities. Firstly, we briefly contextualize these terms, then we describe the characteristics and architectural design of our FIWARE component, highlighting how it can improve the support to smart services and applications. We also present real application scenarios where this component can be applied, specially considering the Brazilian cities. © 2017 IEEE.

关键词： Data handling

Measurement of the non-prompt D-meson fraction as a function of multiplicity in proton–proton collisions at √s = 13 TeV

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arXiv 2023年

作者： Acharya, S. Adamová, D. Adler, A. Rinella, G. Aglieri Agnello, M. Agrawal, N. Ahammed, Z. Ahmad, S. Ahn, S.U. Ahuja, I. Al-Turany, M. Alessandro, B. Alfanda, H.M. Molina, R. Alfaro Ali, B. Alici, A. Alizadehvandchali, N. Alkin, A. Alme, J. Alocco, G. Alt, T. Anaam, M.N. Andrei, C. Andronic, A. Anguelov, V. Antinori, F. Antonioli, P. Apadula, N. Aphecetche, L. Appelshäuser, H. Arata, C. Arcelli, S. Aresti, M. Arnaldi, R. Arneiro, J.G.M.C.A. Arsene, I.C. Arslandok, M. Augustinus, A. Averbeck, R. Azmi, M.D. Badalà, A. Bae, J. Baek, Y.W. Bai, X. Bailhache, R. Bailung, Y. Balbino, A. Baldisseri, A. Balis, B. Banerjee, D. Banoo, Z. Barbera, R. Barile, F. Barioglio, L. Barlou, M. Barnaföldi, G.G. Barnby, L.S. Barret, V. Barreto, L. Bartels, C. Barth, K. Bartsch, E. Bastid, N. Basu, S. Batigne, G. Battistini, D. Bauri, D. Alba, J.L. Bazo Bearden, I.G. Beattie, C. Becht, P. Behera, D. Belikov, I. Hechavarria, A.D.C. Bell Bellini, F. Bellwied, R. Bencedi, G. Beole, S. Bercuci, A. Berdnikova, A. Bergmann, L. Besoiu, M.G. Betev, L. Bhaduri, P.P. Bhasin, A. Bhat, M.A. Bhattacharjee, B. Bianchi, L. Bianchi, N. Bielčík, J. Bielčíková, J. Biernat, J. Bigot, A.P. Bilandzic, A. Biro, G. Biswas, S. Bize, N. Blair, J.T. Blidaru, M.B. Bluhme, N. Blume, C. Boca, G. Bock, F. Bodova, T. Boi, S. Bok, J. Boldizsár, L. Bombara, M. Bond, P.M. Bonomi, G. Borel, H. Carcamo, A.G. Borquez Bossi, H. Botta, E. Bouziani, Y.E.M. Bratrud, L. Braun-Munzinger, P. Bregant, M. Broz, M. Bruno, G.E. Buckland, M.D. Buesching, H. Bufalino, S. Bugnon, O. Buhler, P. Buthelezi, Z. Bysiak, S.A. Cai, M. Caines, H. Caliva, A. Villar, E. Calvo Camacho, J.M.M. Camerini, P. Canedo, F.D.M. Carabas, M. Carballo, A.A. Carnesecchi, F. Caron, R. Carvalho, L.A.D. Castellanos, J. Castillo Catalano, F. Chakaberia, I. Chakraborty, P. Chandra, S. Chapeland, S. Chartier, M. Chattopadhyay, S. Chattopadhyay, S. Chavez, T.G. Cheng, T. Cheshkov, C. Cheynis, B. Max-Planck-Institut für Physik Munich Germany Bologna Italy Dipartimento DET del Politecnico di Torino Turin Italy Department of Applied Physics Aligarh Muslim University Aligarh India Institute of Theoretical Physics University of Wroclaw Poland An institution covered by a cooperation agreement with CERN Foundation Yerevan Armenia AGH University of Science and Technology Cracow Poland Bogolyubov Institute for Theoretical Physics National Academy of Sciences of Ukraine Kiev Ukraine Kolkata India California Polytechnic State University San Luis ObispoCA United States Central China Normal University Wuhan China Havana Cuba Mérida Mexico City Mexico Chicago State University ChicagoIL United States China Institute of Atomic Energy Beijing China Chungbuk National University Cheongju Korea Republic of Comenius University Bratislava Faculty of Mathematics Physics and Informatics Bratislava Slovakia COMSATS University Islamabad Islamabad Pakistan Creighton University OmahaNE United States Department of Physics Aligarh Muslim University Aligarh India Department of Physics Pusan National University Pusan Korea Republic of Department of Physics Sejong University Seoul Korea Republic of Department of Physics University of California BerkeleyCA United States Department of Physics University of Oslo Oslo Norway Department of Physics and Technology University of Bergen Bergen Norway Dipartimento di Fisica Università di Pavia Pavia Italy Dipartimento di Fisica dell'Università and Sezione INFN Cagliari Italy Dipartimento di Fisica dell'Università and Sezione INFN Trieste Italy Dipartimento di Fisica dell'Università and Sezione INFN Turin Italy Dipartimento di Fisica e Astronomia dell'Università and Sezione INFN Bologna Italy Dipartimento di Fisica e Astronomia dell'Università and Sezione INFN Catania Italy Dipartimento di Fisica e Astronomia dell'Università and Sezione INFN Padova Italy Dipartimento di Fisica 'E.R. Caianiello' dell'Università

The fractions of non-prompt (i.e. originating from beauty-hadron decays) D0 and D+ mesons with respect to the inclusive yield are measured as a function of the charged-particle multiplicity in proton–proton collisions at a centre-of-mass energy of √s = 13 TeV with the ALICE detector at the LHC. The results are reported in intervals of transverse momentum (pT) and integrated in the range 1 T 0 and D+ mesons is found to increase slightly as a function of pT in all the measured multiplicity intervals, while no significant dependence on the charged-particle multiplicity is observed. In order to investigate the production and hadronisation mechanisms of charm and beauty quarks, the results are compared to PYTHIA 8 as well as EPOS 3 and EPOS 4 Monte Carlo simulations, and to calculations based on the colour glass condensate including three-pomeron fusion. © 2023, CC BY.

关键词： Hadrons

Modification of charged-particle jets in event-shape engineered Pb–Pb collisions at √sNN = 5.02 TeV

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arXiv 2023年

作者： Acharya, S. Adamova, D. Rinella, G. Aglieri Agnello, M. Agrawal, N. Ahammed, Z. Ahmad, S. Ahn, S.U. Ahuja, I. Akindinov, A. Al-Turany, M. Aleksandrov, D. Alessandro, B. Alfanda, H.M. Molina, R. Alfaro Ali, B. Alici, A. Alizadehvandchali, N. Alkin, A. Alme, J. Alocco, G. Alt, T. Altamura, A.R. Altsybeev, I. Alvarado, J.R. Anaam, M.N. Andrei, C. Andreou, N. Andronic, A. Anguelov, V. Antinori, F. Antonioli, P. Apadula, N. Aphecetche, L. Appelshauser, H. Arata, C. Arcelli, S. Aresti, M. Arnaldi, R. Arneiro, J.G.M.C.A. Arsene, I.C. Arslandok, M. Augustinus, A. Averbeck, R. Azmi, M.D. Baba, H. Badala, A. Bae, J. Baek, Y.W. Bai, X. Bailhache, R. Bailung, Y. Balbino, A. Baldisseri, A. Balis, B. Banerjee, D. Banoo, Z. Barbera, R. Barile, F. Barioglio, L. Barlou, M. Barman, B. Barnafoldi, G.G. Barnby, L.S. Barret, V. Barreto, L. Bartels, C. Barth, K. Bartsch, E. Bastid, N. Basu, S. Batigne, G. Battistini, D. Batyunya, B. Bauri, D. Alba, J.L. Bazo Bearden, I.G. Beattie, C. Becht, P. Behera, D. Belikov, I. Hechavarria, A.D.C. Bell Bellini, F. Bellwied, R. Belokurova, S. Beltran, Y.A.V. Bencedi, G. Beole, S. Berdnikov, Y. Berdnikova, A. Bergmann, L. Besoiu, M.G. Betev, L. Bhaduri, P.P. Bhasin, A. Bhat, M.A. Bhattacharjee, B. Bianchi, L. Bianchi, N. Bielčík, J. Bielčíková, J. Biernat, J. Bigot, A.P. Bilandzic, A. Biro, G. Biswas, S. Bize, N. Blair, J.T. Blau, D. Blidaru, M.B. Bluhme, N. Blume, C. Boca, G. Bock, F. Bodova, T. Bogdanov, A. Boi, S. Bok, J. Boldizsar, L. Bombara, M. Bond, P.M. Bonomi, G. Borel, H. Borissov, A. Carcamo, A.G. Borquez Bossi, H. Botta, E. Bouziani, Y.E.M. Bratrud, L. Braun-Munzinger, P. Bregant, M. Broz, M. Bruno, G.E. Buckland, M.D. Budnikov, D. Buesching, H. Bufalino, S. Buhler, P. Burmasov, N. Buthelezi, Z. Bylinkin, A. Bysiak, S.A. Cai, M. Caines, H. Caliva, A. Villar, E. Calvo Camacho, J.M.M. Camerini, P. Canedo, F.D.M. Cantway, S.L. Carabas, M. Carballo, A.A. Carnesecchi, F. Caron, R. Max-Planck-Institut fur Physik Munich Germany Bologna Italy Dipartimento DET del Politecnico di Torino Turin Italy Yildiz Technical University Istanbul Turkey Department of Applied Physics Aligarh Muslim University Aligarh India Institute of Theoretical Physics University of Wroclaw Poland CERN Switzerland Foundation Yerevan Armenia AGH University of Krakow Cracow Poland Bogolyubov Institute for Theoretical Physics National Academy of Sciences of Ukraine Kiev Ukraine Kolkata India California Polytechnic State University San Luis ObispoCA United States Central China Normal University Wuhan China Havana Cuba Mexico City Mérida Mexico Chicago State University ChicagoIL United States China Institute of Atomic Energy Beijing China China University of Geosciences Wuhan China Chungbuk National University Cheongju Korea Republic of Comenius University Bratislava Faculty of Mathematics Physics and Informatics Bratislava Slovakia COMSATS University Islamabad Islamabad Pakistan Creighton University OmahaNE United States Department of Physics Aligarh Muslim University Aligarh India Department of Physics Pusan National University Pusan Korea Republic of Department of Physics Sejong University Seoul Korea Republic of Department of Physics University of California BerkeleyCA United States Department of Physics University of Oslo Oslo Norway Department of Physics and Technology University of Bergen Bergen Norway Dipartimento di Fisica Università di Pavia Pavia Italy Dipartimento di Fisica dell’Università Sezione INFN Cagliari Italy Dipartimento di Fisica dell’Università Sezione INFN Trieste Italy Dipartimento di Fisica dell’Università Sezione INFN Turin Italy Dipartimento di Fisica e Astronomia dell’Università Sezione INFN Bologna Italy Dipartimento di Fisica e Astronomia dell’Università Sezione INFN Catania Italy Dipartimento di Fisica e Astronomia dell’Università Sezione INFN Padova Italy Dipartimento di Fisica E.R. Caianiello’ d

Charged-particle jet yields have been measured in semicentral Pb–Pb collisions at center-of-mass energy per nucleon–nucleon collision √sNN = 5.02 TeV with the ALICE detector at the LHC. These yields are reported as a function of the jet transverse momentum, and further classified by their angle with respect to the event plane and the event shape, characterized by ellipticity, in an effort to study the path-length dependence of jet quenching. Jets were reconstructed at midrapidity from charged-particle tracks using the anti-kT algorithm with resolution parameters R = 0.2 and 0.4, with event-plane angle and event-shape values determined using information from forward scintillating detectors. The results presented in this letter show that, in semicentral Pb–Pb collisions, there is no significant difference between jet yields in predominantly isotropic and elliptical events. However, out-of-plane jets are observed to be more suppressed than in-plane jets. Further, this relative suppression is greater for low transverse momentum ( © 2023, CC BY.

关键词： Charged particles

Inclusive and multiplicity dependent production of electrons from heavy-flavour hadron decays in pp and p–Pb collisions

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arXiv 2023年

作者： Acharya, S. Adamová, D. Adler, A. Rinella, G. Aglieri Agnello, M. Agrawal, N. Ahammed, Z. Ahmad, S. Ahn, S.U. Ahuja, I. Al-Turany, M. Alessandro, B. Alfanda, H.M. Molina, R. Alfaro Ali, B. Alici, A. Alizadehvandchali, N. Alkin, A. Alme, J. Alocco, G. Alt, T. Anaam, M.N. Andrei, C. Andronic, A. Anguelov, V. Antinori, F. Antonioli, P. Apadula, N. Aphecetche, L. Appelshäuser, H. Arata, C. Arcelli, S. Aresti, M. Arnaldi, R. Arneiro, J.G.M.C.A. Arsene, I.C. Arslandok, M. Augustinus, A. Averbeck, R. Azmi, M.D. Badalà, A. Bae, J. Baek, Y.W. Bai, X. Bailhache, R. Bailung, Y. Balbino, A. Baldisseri, A. Balis, B. Banerjee, D. Banoo, Z. Barbera, R. Barile, F. Barioglio, L. Barlou, M. Barnaföldi, G.G. Barnby, L.S. Barret, V. Barreto, L. Bartels, C. Barth, K. Bartsch, E. Bastid, N. Basu, S. Batigne, G. Battistini, D. Bauri, D. Alba, J.L. Bazo Bearden, I.G. Beattie, C. Becht, P. Behera, D. Belikov, I. Hechavarria, A.D.C. Bell Bellini, F. Bellwied, R. Bencedi, G. Beole, S. Bercuci, A. Berdnikova, A. Bergmann, L. Besoiu, M.G. Betev, L. Bhaduri, P.P. Bhasin, A. Bhat, M.A. Bhattacharjee, B. Bianchi, L. Bianchi, N. Bielčík, J. Bielčíková, J. Biernat, J. Bigot, A.P. Bilandzic, A. Biro, G. Biswas, S. Bize, N. Blair, J.T. Blidaru, M.B. Bluhme, N. Blume, C. Boca, G. Bock, F. Bodova, T. Boi, S. Bok, J. Boldizsár, L. Bombara, M. Bond, P.M. Bonomi, G. Borel, H. Carcamo, A.G. Borquez Bossi, H. Botta, E. Bouziani, Y.E.M. Bratrud, L. Braun-Munzinger, P. Bregant, M. Broz, M. Bruno, G.E. Buckland, M.D. Buesching, H. Bufalino, S. Bugnon, O. Buhler, P. Buthelezi, Z. Bysiak, S.A. Cai, M. Caines, H. Caliva, A. Villar, E. Calvo Camacho, J.M.M. Camerini, P. Canedo, F.D.M. Carabas, M. Carballo, A.A. Carnesecchi, F. Caron, R. Carvalho, L.A.D. Castellanos, J. Castillo Catalano, F. Chakaberia, I. Chakraborty, P. Chandra, S. Chapeland, S. Chartier, M. Chattopadhyay, S. Chattopadhyay, S. Chavez, T.G. Cheng, T. Cheshkov, C. Cheynis, B. Max-Planck-Institut für Physik Munich Germany Bologna Italy Dipartimento DET del Politecnico di Torino Turin Italy Department of Applied Physics Aligarh Muslim University Aligarh India Institute of Theoretical Physics University of Wroclaw Poland An institution covered by a cooperation agreement with CERN Switzerland Foundation Yerevan Armenia AGH University of Science and Technology Cracow Poland Bogolyubov Institute for Theoretical Physics National Academy of Sciences of Ukraine Kiev Ukraine Kolkata India California Polytechnic State University San Luis ObispoCA United States Central China Normal University Wuhan China Havana Cuba Mérida Mexico City Mexico Chicago State University ChicagoIL United States China Institute of Atomic Energy Beijing China Chungbuk National University Cheongju Korea Republic of Comenius University Bratislava Faculty of Mathematics Physics and Informatics Bratislava Slovakia COMSATS University Islamabad Islamabad Pakistan Creighton University OmahaNE United States Department of Physics Aligarh Muslim University Aligarh India Department of Physics Pusan National University Pusan Korea Republic of Department of Physics Sejong University Seoul Korea Republic of Department of Physics University of California BerkeleyCA United States Department of Physics University of Oslo Oslo Norway Department of Physics and Technology University of Bergen Bergen Norway Dipartimento di Fisica Università di Pavia Pavia Italy Dipartimento di Fisica dell'Università and Sezione INFN Cagliari Italy Dipartimento di Fisica dell'Università and Sezione INFN Trieste Italy Dipartimento di Fisica dell'Università and Sezione INFN Turin Italy Dipartimento di Fisica e Astronomia dell'Università and Sezione INFN Bologna Italy Dipartimento di Fisica e Astronomia dell'Università and Sezione INFN Catania Italy Dipartimento di Fisica e Astronomia dell'Università and Sezione INFN Padova Italy Dipartimento di Fisica 'E.R. Caianiello' dell

Measurements of the production of electrons from heavy-flavour hadron decays in pp collisions at √s = 13 TeV at midrapidity with the ALICE detector are presented down to a transverse momentum (pT) of 0.2 GeV/c and up to pT = 35 GeV/c, which is the largest momentum range probed for inclusive electron measurements in ALICE. In p–Pb collisions, the production cross section and the nuclear modification factor of electrons from heavy-flavour hadron decays are measured in the pT range 0.5 T √sNN = 8.16 TeV. The nuclear modification factor is found to be consistent with unity within the statistical and systematic uncertainties. In both collision systems, first measurements of the yields of electrons from heavy-flavour hadron decays in different multiplicity intervals normalised to the multiplicity-integrated yield (self-normalised yield) at midrapidity are reported as a function of the self-normalised charged-particle multiplicity estimated at midrapidity. The self-normalised yields in pp and p–Pb collisions grow faster than linear with the self-normalised multiplicity. A strong pT dependence is observed in pp collisions, where the yield of high-pT electrons increases faster as a function of multiplicity than the one of low-pT electrons. The measurement in p–Pb collisions shows no pT dependence within uncertainties. The self-normalised yields in pp and p–Pb collisions are compared with measurements of other heavy-flavour, light-flavour, and strange particles, and with Monte Carlo simulations. © 2023, CC BY.

关键词： Electrons

Production of pions, kaons, and protons as a function of the relative transverse activity classifier in pp collisions at √s = 13 TeV

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arXiv 2023年

作者： Acharya, S. Adamová, D. Adler, A. Rinella, G. Aglieri Agnello, M. Agrawal, N. Ahammed, Z. Ahmad, S. Ahn, S.U. Ahuja, I. Akindinov, A. Al-Turany, M. Aleksandrov, D. Alessandro, B. Alfanda, H.M. Molina, R. Alfaro Ali, B. Alici, A. Alizadehvandchali, N. Alkin, A. Alme, J. Alocco, G. Alt, T. Altsybeev, I. Anaam, M.N. Andrei, C. Andronic, A. Anguelov, V. Antinori, F. Antonioli, P. Apadula, N. Aphecetche, L. Appelshäuser, H. Arata, C. Arcelli, S. Aresti, M. Arnaldi, R. Arneiro, J.G.M.C.A. Arsene, I.C. Arslandok, M. Augustinus, A. Averbeck, R. Azmi, M.D. Badalà, A. Bae, J. Baek, Y.W. Bai, X. Bailhache, R. Bailung, Y. Balbino, A. Baldisseri, A. Balis, B. Banerjee, D. Banoo, Z. Barbera, R. Barile, F. Barioglio, L. Barlou, M. Barnaföldi, G.G. Barnby, L.S. Barret, V. Barreto, L. Bartels, C. Barth, K. Bartsch, E. Bastid, N. Basu, S. Batigne, G. Battistini, D. Batyunya, B. Bauri, D. Alba, J.L. Bazo Bearden, I.G. Beattie, C. Becht, P. Behera, D. Belikov, I. Hechavarria, A.D.C. Bell Bellini, F. Bellwied, R. Belokurova, S. Belyaev, V. Bencedi, G. Beole, S. Bercuci, A. Berdnikov, Y. Berdnikova, A. Bergmann, L. Besoiu, M.G. Betev, L. Bhaduri, P.P. Bhasin, A. Bhat, M.A. Bhattacharjee, B. Bianchi, L. Bianchi, N. Bielčík, J. Bielčíková, J. Biernat, J. Bigot, A.P. Bilandzic, A. Biro, G. Biswas, S. Bize, N. Blair, J.T. Blau, D. Blidaru, M.B. Bluhme, N. Blume, C. Boca, G. Bock, F. Bodova, T. Bogdanov, A. Boi, S. Bok, J. Boldizsár, L. Bolozdynya, A. Bombara, M. Bond, P.M. Bonomi, G. Borel, H. Borissov, A. Carcamo, A.G. Borquez Bossi, H. Botta, E. Bouziani, Y.E.M. Bratrud, L. Braun-Munzinger, P. Bregant, M. Broz, M. Bruno, G.E. Buckland, M.D. Budnikov, D. Buesching, H. Bufalino, S. Bugnon, O. Buhler, P. Buthelezi, Z. Bysiak, S.A. Cai, M. Caines, H. Caliva, A. Villar, E. Calvo Camacho, J.M.M. Camerini, P. Canedo, F.D.M. Carabas, M. Carballo, A.A. Carnesecchi, F. Caron, R. Carvalho, L.A.D. Castellanos, J. Castillo Catalano, F. Max-Planck-Institut für Physik Munich Germany Bologna Italy Dipartimento DET del Politecnico di Torino Turin Italy Department of Applied Physics Aligarh Muslim University Aligarh India Institute of Theoretical Physics University of Wroclaw Poland An institution covered by a cooperation agreement with CERN Switzerland Foundation Yerevan Armenia AGH University of Science and Technology Cracow Poland Bogolyubov Institute for Theoretical Physics National Academy of Sciences of Ukraine Kiev Ukraine Kolkata India California Polytechnic State University San Luis ObispoCA United States Central China Normal University Wuhan China Havana Cuba Mérida Mexico City Mexico Chicago State University ChicagoIL United States China Institute of Atomic Energy Beijing China Chungbuk National University Cheongju Korea Republic of Comenius University Bratislava Faculty of Mathematics Physics and Informatics Bratislava Slovakia COMSATS University Islamabad Islamabad Pakistan Creighton University OmahaNE United States Department of Physics Aligarh Muslim University Aligarh India Department of Physics Pusan National University Pusan Korea Republic of Department of Physics Sejong University Seoul Korea Republic of Department of Physics University of California BerkeleyCA United States Department of Physics University of Oslo Oslo Norway Department of Physics and Technology University of Bergen Bergen Norway Dipartimento di Fisica Università di Pavia Pavia Italy Dipartimento di Fisica dell'Università and Sezione INFN Cagliari Italy Dipartimento di Fisica dell'Università and Sezione INFN Trieste Italy Dipartimento di Fisica dell'Università and Sezione INFN Turin Italy Dipartimento di Fisica e Astronomia dell'Università and Sezione INFN Bologna Italy Dipartimento di Fisica e Astronomia dell'Università and Sezione INFN Catania Italy Dipartimento di Fisica e Astronomia dell'Università and Sezione INFN Padova Italy Dipartimento di Fisica 'E.R. Caianiello' dell

The production of π±, K±, and (p)p is measured in pp collisions at √s = 13 TeV in different topological regions of the events. Particle transverse momentum (pT) spectra are measured in the "toward", "transverse", and "away" angular regions defined with respect to the direction of the leading particle in the event. While the toward and away regions contain the fragmentation products of the near-side and away-side jets, respectively, the transverse region is dominated by particles from the Underlying Event (UE). The relative transverse activity classifier, RT = NT/〈NT〉, is used to group events according to their UE activity, where NT is the measured charged-particle multiplicity per event in the transverse region and 〈NT〉 is the mean value over all the analysed events. The first measurements of identified particle pT spectra as a function of RT in the three topological regions are reported. It is found that the yield of high transverse momentum particles relative to the RT-integrated measurement decreases with increasing RT in both the toward and the away regions, indicating that the softer UE dominates particle production as RT increases and validating that RT can be used to control the magnitude of the UE. Conversely, the spectral shapes in the transverse region harden significantly with increasing RT. This hardening follows a mass ordering, being more significant for heavier particles. Finally, it is observed that the pT-differential particle ratios (p + p)/(π+ + π−) and (K+ + K−)/(π+ + π−) in the low UE limit (RT → 0) approach expectations from Monte Carlo generators such as PYTHIA 8 with Monash 2013 tune and EPOS LHC, where the jet-fragmentation models have been tuned to reproduce e+e− results. © 2023, CC BY.

关键词： Charged particles