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One-dimensional charged kaon femtoscopy in p-Pb collisions at sNN = 5.02 TeV

Physical Review C 2019年第2期100卷 024002-024002页

作者： S. Acharya D. Adamová S. P. Adhya A. Adler J. Adolfsson M. M. Aggarwal G. Aglieri Rinella M. Agnello N. Agrawal Z. Ahammed S. Ahmad S. U. Ahn S. Aiola A. Akindinov M. Al-Turany S. N. Alam D. S. D. Albuquerque D. Aleksandrov B. Alessandro H. M. Alfanda R. Alfaro Molina B. Ali Y. Ali A. Alici A. Alkin J. Alme T. Alt L. Altenkamper I. Altsybeev M. N. Anaam C. Andrei D. Andreou H. A. Andrews A. Andronic M. Angeletti V. Anguelov C. Anson T. Antičić F. Antinori P. Antonioli R. Anwar N. Apadula L. Aphecetche H. Appelshäuser S. Arcelli R. Arnaldi M. Arratia I. C. Arsene M. Arslandok A. Augustinus R. Averbeck S. Aziz M. D. Azmi A. Badalà Y. W. Baek S. Bagnasco R. Bailhache R. Bala A. Baldisseri M. Ball R. C. Baral R. Barbera L. Barioglio G. G. Barnaföldi L. S. Barnby V. Barret P. Bartalini K. Barth E. Bartsch N. Bastid S. Basu G. Batigne B. Batyunya P. C. Batzing D. Bauri J. L. Bazo Alba I. G. Bearden C. Bedda N. K. Behera I. Belikov F. Bellini R. Bellwied L. G. E. Beltran V. Belyaev G. Bencedi S. Beole A. Bercuci Y. Berdnikov D. Berenyi R. A. Bertens D. Berzano L. Betev A. Bhasin I. R. Bhat H. Bhatt B. Bhattacharjee A. Bianchi L. Bianchi N. Bianchi J. Bielčík J. Bielčíková A. Bilandzic G. Biro R. Biswas S. Biswas J. T. Blair D. Blau C. Blume G. Boca F. Bock A. Bogdanov L. Boldizsár A. Bolozdynya M. Bombara G. Bonomi M. Bonora H. Borel A. Borissov M. Borri H. Bossi E. Botta C. Bourjau L. Bratrud P. Braun-Munzinger M. Bregant T. A. Broker M. Broz E. J. Brucken E. Bruna G. E. Bruno M. D. Buckland D. Budnikov H. Buesching S. Bufalino O. Bugnon P. Buhler P. Buncic O. Busch Z. Buthelezi J. B. Butt J. T. Buxton D. Caffarri A. Caliva E. Calvo Villar R. S. Camacho P. Camerini A. A. Capon F. Carnesecchi J. Castillo Castellanos A. J. Castro E. A. R. Casula F. Catalano C. Ceballos Sanchez P. Chakraborty S. Chandra B. Chang W. Chang S. Chapeland M. Chartier S. Chattopadhyay A. Chauvin C. Cheshkov B. Cheynis V. Chibante Barroso D. D. Chinellato S. Cho P. Chochula T. Chowdhury P. Christakoglou C. H. Christensen P. Christiansen T. Chujo Variable Energy Cyclotron Centre Homi Bhabha National Institute Kolkata India Nuclear Physics Institute of the Czech Academy of Sciences Řež u Prahy Czech Republic Johann-Wolfgang-Goethe Universität Frankfurt Institut für Informatik Fachbereich Informatik und Mathematik Frankfurt Germany Lund University Department of Physics Division of Particle Physics Lund Sweden Physics Department Panjab University Chandigarh India European Organization for Nuclear Research (CERN) Geneva Switzerland Dipartimento DISAT del Politecnico and Sezione INFN Turin Italy Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche “Enrico Fermi' Rome Italy Department of Physics Aligarh Muslim University Aligarh India Korea Institute of Science and Technology Information Daejeon Republic of Korea Yale University New Haven Connecticut United States Institute for Theoretical and Experimental Physics Moscow Russia Research Division and ExtreMe Matter Institute EMMI GSI Helmholtzzentrum für Schwerionenforschung GmbH Darmstadt Germany Universidade Estadual de Campinas (UNICAMP) Campinas Brazil National Research Centre Kurchatov Institute Moscow Russia INFN Sezione di Torino Turin Italy Central China Normal University Wuhan China Instituto de Física Universidad Nacional Autónoma de México Mexico City Mexico COMSATS University Islamabad Islamabad Pakistan INFN Sezione di Bologna Bologna Italy Dipartimento di Fisica e Astronomia dell'Università and Sezione INFN Bologna Italy Bogolyubov Institute for Theoretical Physics National Academy of Sciences of Ukraine Kiev Ukraine Department of Physics and Technology University of Bergen Bergen Norway Institut für Kernphysik Johann Wolfgang Goethe-Universität Frankfurt Frankfurt Germany St. Petersburg State University St. Petersburg Russia Horia Hulubei National Institute of Physics and Nuclear Engineering Bucharest Romania School of Physics and Astronomy University of Birmingham Birmingham United Kingdom Westfälische Wilhelms-Uni

The correlations of identical charged kaons were measured in p-Pb collisions at sNN=5.02 TeV by the ALICE experiment at the LHC. The femtoscopic invariant radii and correlation strengths were extracted from one-dimensional kaon correlation functions and were compared with those obtained in pp and Pb-Pb collisions at s=7 TeV and sNN=2.76 TeV, respectively. The presented results also complement the identical-pion femtoscopic data published by the ALICE collaboration. The extracted radii increase with increasing charged-particle multiplicity and decrease with increasing pair transverse momentum. At comparable multiplicities, the radii measured in p-Pb collisions are found to be close to those observed in pp collisions. The obtained femtoscopic parameters are reproduced by the EPOS 3 hadronic interaction model and disfavor models with large initial size or strong collective expansion at low multiplicities.

关键词： Particle interactions Relativistic heavy-ion collisions

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Direct photon production at low transverse momentum in proton-proton collisions at s=2.76 and 8 TeV

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Physical Review C 2019年第2期99卷 024912-024912页

作者： S. Acharya F. T.-. Acosta D. Adamová J. Adolfsson M. M. Aggarwal G. Aglieri Rinella M. Agnello N. Agrawal Z. Ahammed S. U. Ahn S. Aiola A. Akindinov M. Al-Turany S. N. Alam D. S. D. Albuquerque D. Aleksandrov B. Alessandro R. Alfaro Molina Y. Ali A. Alici A. Alkin J. Alme T. Alt L. Altenkamper I. Altsybeev C. Andrei D. Andreou H. A. Andrews A. Andronic M. Angeletti V. Anguelov C. Anson T. Antičić F. Antinori P. Antonioli R. Anwar N. Apadula L. Aphecetche H. Appelshäuser S. Arcelli R. Arnaldi O. W. Arnold I. C. Arsene M. Arslandok B. Audurier A. Augustinus R. Averbeck M. D. Azmi A. Badalà Y. W. Baek S. Bagnasco R. Bailhache R. Bala A. Baldisseri M. Ball R. C. Baral A. M. Barbano R. Barbera F. Barile L. Barioglio G. G. Barnaföldi L. S. Barnby V. Barret P. Bartalini K. Barth E. Bartsch N. Bastid S. Basu G. Batigne B. Batyunya P. C. Batzing J. L. Bazo Alba I. G. Bearden H. Beck C. Bedda N. K. Behera I. Belikov F. Bellini H. Bello Martinez R. Bellwied L. G. E. Beltran V. Belyaev G. Bencedi S. Beole A. Bercuci Y. Berdnikov D. Berenyi R. A. Bertens D. Berzano L. Betev P. P. Bhaduri A. Bhasin I. R. Bhat H. Bhatt B. Bhattacharjee J. Bhom A. Bianchi L. Bianchi N. Bianchi J. Bielčík J. Bielčíková A. Bilandzic G. Biro R. Biswas S. Biswas J. T. Blair D. Blau C. Blume G. Boca F. Bock A. Bogdanov L. Boldizsár M. Bombara G. Bonomi M. Bonora H. Borel A. Borissov M. Borri E. Botta C. Bourjau L. Bratrud P. Braun-Munzinger M. Bregant T. A. Broker M. Broz E. J. Brucken E. Bruna G. E. Bruno D. Budnikov H. Buesching S. Bufalino P. Buhler P. Buncic O. Busch Z. Buthelezi J. B. Butt J. T. Buxton J. Cabala D. Caffarri H. Caines A. Caliva E. Calvo Villar R. S. Camacho P. Camerini A. A. Capon F. Carena W. Carena F. Carnesecchi J. Castillo Castellanos A. J. Castro E. A. R. Casula C. Ceballos Sanchez S. Chandra B. Chang W. Chang S. Chapeland M. Chartier S. Chattopadhyay A. Chauvin C. Cheshkov B. Cheynis V. Chibante Barroso D. D. Chinellato S. Cho P. Chochula T. Chowdhury P. Christakoglou C. H. Christensen P. Christiansen T. Chujo S. U. Chung C Variable Energy Cyclotron Centre Kolkata India Department of Physics University of California Berkeley California United States Nuclear Physics Institute of the Czech Academy of Sciences Řež u Prahy Czech Republic Lund University Department of Physics Division of Particle Physics Lund Sweden Physics Department Panjab University Chandigarh India European Organization for Nuclear Research (CERN) Geneva Switzerland Dipartimento DISAT del Politecnico and Sezione INFN Turin Italy Indian Institute of Technology Bombay (IIT) Mumbai India Korea Institute of Science and Technology Information Daejeon Republic of Korea Yale University New Haven Connecticut United States Institute for Theoretical and Experimental Physics Moscow Russia Research Division and ExtreMe Matter Institute EMMI GSI Helmholtzzentrum für Schwerionenforschung GmbH Darmstadt Germany Universidade Estadual de Campinas (UNICAMP) Campinas Brazil National Research Centre Kurchatov Institute Moscow Russia INFN Sezione di Torino Turin Italy Instituto de Física Universidad Nacional Autónoma de México Mexico City Mexico COMSATS Institute of Information Technology (CIIT) Islamabad Pakistan Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche “Enrico Fermi' Rome Italy INFN Sezione di Bologna Bologna Italy Dipartimento di Fisica e Astronomia dell'Università and Sezione INFN Bologna Italy Bogolyubov Institute for Theoretical Physics National Academy of Sciences of Ukraine Kiev Ukraine Department of Physics and Technology University of Bergen Bergen Norway Institut für Kernphysik Johann Wolfgang Goethe-Universität Frankfurt Frankfurt Germany V. Fock Institute for Physics St. Petersburg State University St. Petersburg Russia Horia Hulubei National Institute of Physics and Nuclear Engineering Bucharest Romania School of Physics and Astronomy University of Birmingham Birmingham United Kingdom Physikalisches Institut Ruprecht-Karls-Universität Heidelberg Heidelberg Germany Creighton Unive

Measurements of inclusive and direct photon production at midrapidity in pp collisions at s=2.76 and 8 TeV are presented by the ALICE experiment at the LHC. The results are reported in transverse momentum ranges of 0.47 GeV/c is at least one σ above unity and consistent with expectations from next-to-leading order pQCD calculations.

关键词： Nuclear reactions Nucleon induced nuclear reactions Perturbative QCD Photon, lepton & quark production Quantum chromodynamics

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Measurement of charged jet cross section in pp collisions at s=5.02 TeV

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Physical Review D 2019年第9期100卷 092004-092004页

作者： S. Acharya D. Adamová S. P. Adhya A. Adler J. Adolfsson M. M. Aggarwal G. Aglieri Rinella M. Agnello N. Agrawal Z. Ahammed S. Ahmad S. U. Ahn S. Aiola A. Akindinov M. Al-Turany S. N. Alam D. S. D. Albuquerque D. Aleksandrov B. Alessandro H. M. Alfanda R. Alfaro Molina B. Ali Y. Ali A. Alici A. Alkin J. Alme T. Alt L. Altenkamper I. Altsybeev M. N. Anaam C. Andrei D. Andreou H. A. Andrews A. Andronic M. Angeletti V. Anguelov C. Anson T. Antičić F. Antinori P. Antonioli R. Anwar N. Apadula L. Aphecetche H. Appelshäuser S. Arcelli R. Arnaldi M. Arratia I. C. Arsene M. Arslandok A. Augustinus R. Averbeck S. Aziz M. D. Azmi A. Badalà Y. W. Baek S. Bagnasco R. Bailhache R. Bala A. Baldisseri M. Ball R. C. Baral R. Barbera L. Barioglio G. G. Barnaföldi L. S. Barnby V. Barret P. Bartalini K. Barth E. Bartsch N. Bastid S. Basu G. Batigne B. Batyunya P. C. Batzing D. Bauri J. L. Bazo Alba I. G. Bearden C. Bedda N. K. Behera I. Belikov F. Bellini R. Bellwied L. G. E. Beltran V. Belyaev G. Bencedi S. Beole A. Bercuci Y. Berdnikov D. Berenyi R. A. Bertens D. Berzano L. Betev A. Bhasin I. R. Bhat H. Bhatt B. Bhattacharjee A. Bianchi L. Bianchi N. Bianchi J. Bielčík J. Bielčíková A. Bilandzic G. Biro R. Biswas S. Biswas J. T. Blair D. Blau C. Blume G. Boca F. Bock A. Bogdanov L. Boldizsár A. Bolozdynya M. Bombara G. Bonomi M. Bonora H. Borel A. Borissov M. Borri E. Botta C. Bourjau L. Bratrud P. Braun-Munzinger M. Bregant T. A. Broker M. Broz E. J. Brucken E. Bruna G. E. Bruno M. D. Buckland D. Budnikov H. Buesching S. Bufalino P. Buhler P. Buncic O. Busch Z. Buthelezi J. B. Butt J. T. Buxton D. Caffarri A. Caliva E. Calvo Villar R. S. Camacho P. Camerini A. A. Capon F. Carnesecchi J. Castillo Castellanos A. J. Castro E. A. R. Casula F. Catalano C. Ceballos Sanchez P. Chakraborty S. Chandra B. Chang W. Chang S. Chapeland M. Chartier S. Chattopadhyay A. Chauvin C. Cheshkov B. Cheynis V. Chibante Barroso D. D. Chinellato S. Cho P. Chochula T. Chowdhury P. Christakoglou C. H. Christensen P. Christiansen T. Chujo C. Cicalo L. Cifar Variable Energy Cyclotron Centre Homi Bhabha National Institute Kolkata India Nuclear Physics Institute of the Czech Academy of Sciences ˇRež u Prahy Czech Republic Johann-Wolfgang-Goethe Universität Frankfurt Institut für Informatik Fachbereich Informatik und Mathematik Frankfurt Germany Lund University Department of Physics Division of Particle Physics Lund Sweden Physics Department Panjab University Chandigarh India European Organization for Nuclear Research (CERN) Geneva Switzerland Dipartimento DISAT del Politecnico and Sezione INFN Turin Italy Centro Fermi-Museo Storico della Fisica e Centro Studi e Ricerche “Enrico Fermi’ Rome Italy Department of Physics Aligarh Muslim University Aligarh India Korea Institute of Science and Technology Information Daejeon Republic of Korea Yale University New Haven Connecticut USA Institute for Theoretical and Experimental Physics Moscow Russia Research Division and ExtreMe Matter Institute EMMI GSI Helmholtzzentrum für Schwerionenforschung GmbH Darmstadt Germany Universidade Estadual de Campinas (UNICAMP) Campinas Brazil National Research Centre Kurchatov Institute Moscow Russia INFN Sezione di Torino Turin Italy Central China Normal University Wuhan China Instituto de Física Universidad Nacional Autónoma de México Mexico City Mexico COMSATS University Islamabad Islamabad Pakistan INFN Sezione di Bologna Bologna Italy Dipartimento di Fisica e Astronomia dell’Università Bologna Italy Sezione INFN Bologna Italy Bogolyubov Institute for Theoretical Physics National Academy of Sciences of Ukraine Kiev Ukraine Department of Physics and Technology University of Bergen University of Bergen Bergen Norway Institut für Kernphysik Johann Wolfgang Goethe-Universität Frankfurt Frankfurt Germany St. Petersburg State University St. Petersburg Russia Horia Hulubei National Institute of Physics and Nuclear Engineering Bucharest Romania School of Physics and Astronomy University of Birmingham Birmingham United Kingdom We

The cross section of jets reconstructed from charged particles is measured in the transverse momentum range of 5<pT<100 GeV/c in pp collisions at the center-of-mass energy of s=5.02 TeV with the ALICE detector... 详细信息

The cross section of jets reconstructed from charged particles is measured in the transverse momentum range of 5

关键词： Particle interactions Perturbative QCD

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Author Correction: National identity predicts public health support during a global pandemic

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Nature communications 2022年第1期13卷 1949页

作者： Jay J Van Bavel Aleksandra Cichocka Valerio Capraro Hallgeir Sjåstad John B Nezlek Tomislav Pavlović Mark Alfano Michele J Gelfand Flavio Azevedo Michèle D Birtel Aleksandra Cislak Patricia L Lockwood Robert Malcolm Ross Koen Abts Elena Agadullina John Jamir Benzon Aruta Sahba Nomvula Besharati Alexander Bor Becky L Choma Charles David Crabtree William A Cunningham Koustav De Waqas Ejaz Christian T Elbaek Andrej Findor Daniel Flichtentrei Renata Franc Biljana Gjoneska June Gruber Estrella Gualda Yusaku Horiuchi Toan Luu Duc Huynh Agustin Ibanez Mostak Ahamed Imran Jacob Israelashvili Katarzyna Jasko Jaroslaw Kantorowicz Elena Kantorowicz-Reznichenko André Krouwel Michael Laakasuo Claus Lamm Caroline Leygue Ming-Jen Lin Mohammad Sabbir Mansoor Antoine Marie Lewend Mayiwar Honorata Mazepus Cillian McHugh John Paul Minda Panagiotis Mitkidis Andreas Olsson Tobias Otterbring Dominic J Packer Anat Perry Michael Bang Petersen Arathy Puthillam Julián C Riaño-Moreno Tobias Rothmund Hernando Santamaría-García Petra C Schmid Drozdstoy Stoyanov Shruti Tewari Bojan Todosijević Manos Tsakiris Hans H Tung Radu G Umbreș Edmunds Vanags Madalina Vlasceanu Andrew Vonasch Meltem Yucel Yucheng Zhang Mohcine Abad Eli Adler Narin Akrawi Hamza Alaoui Mdarhri Hanane Amara David M Amodio Benedict G Antazo Matthew Apps F Ceren Ay Mouhamadou Hady Ba Sergio Barbosa Brock Bastian Anton Berg Maria P Bernal-Zárate Michael Bernstein Michał Białek Ennio Bilancini Natalia Bogatyreva Leonardo Boncinelli Jonathan E Booth Sylvie Borau Ondrej Buchel C Daryl Cameron Chrissie F Carvalho Tatiana Celadin Chiara Cerami Hom Nath Chalise Xiaojun Cheng Luca Cian Kate Cockcroft Jane Conway Mateo Andres Córdoba-Delgado Chiara Crespi Marie Crouzevialle Jo Cutler Marzena Cypryańska Justyna Dabrowska Michael A Daniels Victoria H Davis Pamala N Dayley Sylvain Delouvee Ognjan Denkovski Guillaume Dezecache Nathan A Dhaliwal Alelie B Diato Roberto Di Paolo Marianna Drosinou Uwe Dulleck Jānis Ekmanis Arhan S Ertan Tom W Etienne Hapsa Hossain Farhana Fahima Farkhari Har Department of Psychology and Neural Science New York University New York NY USA. jay.vanbavel@nyu.edu. School of Psychology University of Kent Canterbury England. Department of Economics Middlesex University London London England. Department of Strategy and Management Norwegian School of Economics Bergen Norway. SWPS University of Social Sciences and Humanities Poznań Poland. Department of Psychological Sciences College of William and Mary Williamsburg VA USA. Institute of Social Sciences Ivo Pilar Zagreb Croatia. Department of Philosophy Macquarie University Sydney NSW Australia. Stanford Graduate School of Business Stanford University Stanford CA USA. Institute of Communication Science Friedrich-Schiller University Jena Jena Germany. flavio.azevedo@uni-jena.de. School of Human Sciences Institute for Lifecourse Development University of Greenwich London England. Department of Experimental Psychology University of Oxford Oxford England. Center for Human Brain Health School of Psychology University of Birmingham Birmingham England. Department of Psychology Macquarie University Sydney NSW Australia. KU Leuven Leuven Belgium. National Research University Higher School of Economics (HSE) Moscow Russia. De La Salle University Manila Philippines. Department of Psychology University of the Witwatersrand Johannesburg South Africa. Department of Political Science Aarhus University Aarhus Denmark. X University Toronto ON Canada. Department of Government Dartmouth College Hanover NH USA. Department of Psychology University of Toronto Toronto ON Canada. Gatton College of Business and Economics University of Kentucky Lexington KY USA. Department of Mass Communication National University of Science and Technology (NUST) Islamabad Pakistan. Department of Management Aarhus University Aarhus Denmark. Faculty of Social and Economic Sciences Comenius University Bratislava Slovakia. IntraMed Buenos Aires Argentina. Macedonian Academy of Sciences and

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Production of the ρ(770)0 meson in pp and Pb-Pb collisions at sNN=2.76TeV

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Physical Review C 2019年第6期99卷 064901-064901页

作者： S. Acharya F. T.-. Acosta D. Adamová J. Adolfsson M. M. Aggarwal G. Aglieri Rinella M. Agnello N. Agrawal Z. Ahammed S. U. Ahn S. Aiola A. Akindinov M. Al-Turany S. N. Alam D. S. D. Albuquerque D. Aleksandrov B. Alessandro R. Alfaro Molina Y. Ali A. Alici A. Alkin J. Alme T. Alt L. Altenkamper I. Altsybeev C. Andrei D. Andreou H. A. Andrews A. Andronic M. Angeletti V. Anguelov C. Anson T. Antičić F. Antinori P. Antonioli R. Anwar N. Apadula L. Aphecetche H. Appelshäuser S. Arcelli R. Arnaldi O. W. Arnold I. C. Arsene M. Arslandok B. Audurier A. Augustinus R. Averbeck M. D. Azmi A. Badalà Y. W. Baek S. Bagnasco R. Bailhache R. Bala A. Baldisseri M. Ball R. C. Baral A. M. Barbano R. Barbera F. Barile L. Barioglio G. G. Barnaföldi L. S. Barnby V. Barret P. Bartalini K. Barth E. Bartsch N. Bastid S. Basu G. Batigne B. Batyunya P. C. Batzing J. L. Bazo Alba I. G. Bearden H. Beck C. Bedda N. K. Behera I. Belikov F. Bellini H. Bello Martinez R. Bellwied L. G. E. Beltran V. Belyaev G. Bencedi S. Beole A. Bercuci Y. Berdnikov D. Berenyi R. A. Bertens D. Berzano L. Betev P. P. Bhaduri A. Bhasin I. R. Bhat H. Bhatt B. Bhattacharjee J. Bhom A. Bianchi L. Bianchi N. Bianchi J. Bielčík J. Bielčíková A. Bilandzic G. Biro R. Biswas S. Biswas J. T. Blair D. Blau C. Blume G. Boca F. Bock A. Bogdanov L. Boldizsár M. Bombara G. Bonomi M. Bonora H. Borel A. Borissov M. Borri E. Botta C. Bourjau L. Bratrud P. Braun-Munzinger M. Bregant T. A. Broker M. Broz E. J. Brucken E. Bruna G. E. Bruno D. Budnikov H. Buesching S. Bufalino P. Buhler P. Buncic O. Busch Z. Buthelezi J. B. Butt J. T. Buxton J. Cabala D. Caffarri H. Caines A. Caliva E. Calvo Villar R. S. Camacho P. Camerini A. A. Capon F. Carena W. Carena F. Carnesecchi J. Castillo Castellanos A. J. Castro E. A. R. Casula C. Ceballos Sanchez S. Chandra B. Chang W. Chang S. Chapeland M. Chartier S. Chattopadhyay A. Chauvin C. Cheshkov B. Cheynis V. Chibante Barroso D. D. Chinellato S. Cho P. Chochula T. Chowdhury P. Christakoglou C. H. Christensen P. Christiansen T. Chujo S. U. Chung C Variable Energy Cyclotron Centre Kolkata India Department of Physics University of California Berkeley California USA Nuclear Physics Institute of the Czech Academy of Sciences Řež u Prahy Czech Republic Lund University Department of Physics Division of Particle Physics Lund Sweden Physics Department Panjab University Chandigarh India European Organization for Nuclear Research (CERN) Geneva Switzerland Dipartimento DISAT del Politecnico and Sezione INFN Turin Italy Indian Institute of Technology Bombay (IIT) Mumbai India Korea Institute of Science and Technology Information Daejeon Republic of Korea Yale University New Haven Connecticut United States Institute for Theoretical and Experimental Physics Moscow Russia Research Division and ExtreMe Matter Institute EMMI GSI Helmholtzzentrum für Schwerionenforschung GmbH Darmstadt Germany Universidade Estadual de Campinas (UNICAMP) Campinas Brazil National Research Centre Kurchatov Institute Moscow Russia INFN Sezione di Torino Turin Italy Instituto de Física Universidad Nacional Autónoma de México Mexico City Mexico COMSATS Institute of Information Technology (CIIT) Islamabad Pakistan Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche “Enrico Fermi ” Rome Italy INFN Sezione di Bologna Bologna Italy Dipartimento di Fisica e Astronomia dell'Università and Sezione INFN Bologna Italy Bogolyubov Institute for Theoretical Physics National Academy of Sciences of Ukraine Kiev Ukraine Department of Physics and Technology University of Bergen Bergen Norway Institut für Kernphysik Johann Wolfgang Goethe-Universität Frankfurt Frankfurt Germany V. Fock Institute for Physics St. Petersburg State University St. Petersburg Russia Horia Hulubei National Institute of Physics and Nuclear Engineering Bucharest Romania School of Physics and Astronomy University of Birmingham Birmingham United Kingdom Westfälische Wilhelms-Universität Münster Institut für Kernphysik Münster Germany Physikalisches Institut

The production of the ρ(770)0 meson has been measured at midrapidity (|y|<0.5) in pp and centrality differential Pb-Pb collisions at sNN= 2.76 TeV with the ALICE detector at the Large Hadron Collider. The particles have been reconstructed in the ρ(770)0→π+π− decay channel in the transverse-momentum (pT) range 0.5–11 GeV/c. A centrality-dependent suppression of the ratio of the integrated yields 2ρ(770)0/(π++π−) is observed. The ratio decreases by ∼40% from pp to central Pb-Pb collisions. A study of the pT-differential 2ρ(770)0/(π++π−) ratio reveals that the suppression occurs at low transverse momenta, pT<2 GeV/c. At higher momentum, particle ratios measured in heavy-ion and pp collisions are consistent. The observed suppression is very similar to that previously measured for the K*(892)0/K ratio and is consistent with EPOS3 predictions that may imply that rescattering in the hadronic phase is a dominant mechanism for the observed suppression.

关键词： Nucleon induced nuclear reactions Nucleon-nucleon interactions Particle & resonance production Relativistic heavy-ion collisions Mesons

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Suppression of Λ(1520) resonance production in central Pb-Pb collisions at sNN=2.76 TeV

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Physical Review C 2019年第2期99卷 024905-024905页

作者： S. Acharya D. Adamová J. Adolfsson M. M. Aggarwal G. Aglieri Rinella M. Agnello N. Agrawal Z. Ahammed S. U. Ahn S. Aiola A. Akindinov M. Al-Turany S. N. Alam D. S. D. Albuquerque D. Aleksandrov B. Alessandro R. Alfaro Molina Y. Ali A. Alici A. Alkin J. Alme T. Alt L. Altenkamper I. Altsybeev M. N. Anaam C. Andrei D. Andreou H. A. Andrews A. Andronic M. Angeletti V. Anguelov C. Anson T. Antičić F. Antinori P. Antonioli R. Anwar N. Apadula L. Aphecetche H. Appelshäuser S. Arcelli R. Arnaldi O. W. Arnold I. C. Arsene M. Arslandok B. Audurier A. Augustinus R. Averbeck M. D. Azmi A. Badalà Y. W. Baek S. Bagnasco R. Bailhache R. Bala A. Baldisseri M. Ball R. C. Baral A. M. Barbano R. Barbera F. Barile L. Barioglio G. G. Barnaföldi L. S. Barnby V. Barret P. Bartalini K. Barth E. Bartsch N. Bastid S. Basu G. Batigne B. Batyunya P. C. Batzing J. L. Bazo Alba I. G. Bearden H. Beck C. Bedda N. K. Behera I. Belikov F. Bellini H. Bello Martinez R. Bellwied L. G. E. Beltran V. Belyaev G. Bencedi S. Beole A. Bercuci Y. Berdnikov D. Berenyi R. A. Bertens D. Berzano L. Betev P. P. Bhaduri A. Bhasin I. R. Bhat H. Bhatt B. Bhattacharjee J. Bhom A. Bianchi L. Bianchi N. Bianchi J. Bielčík J. Bielčíková A. Bilandzic G. Biro R. Biswas S. Biswas J. T. Blair D. Blau C. Blume G. Boca F. Bock A. Bogdanov L. Boldizsár M. Bombara G. Bonomi M. Bonora H. Borel A. Borissov M. Borri E. Botta C. Bourjau L. Bratrud P. Braun-Munzinger M. Bregant T. A. Broker M. Broz E. J. Brucken E. Bruna G. E. Bruno D. Budnikov H. Buesching S. Bufalino P. Buhler P. Buncic O. Busch Z. Buthelezi J. B. Butt J. T. Buxton J. Cabala D. Caffarri H. Caines A. Caliva E. Calvo Villar R. S. Camacho P. Camerini A. A. Capon F. Carena W. Carena F. Carnesecchi J. Castillo Castellanos A. J. Castro E. A. R. Casula C. Ceballos Sanchez S. Chandra B. Chang W. Chang S. Chapeland M. Chartier S. Chattopadhyay A. Chauvin C. Cheshkov B. Cheynis V. Chibante Barroso D. D. Chinellato S. Cho P. Chochula T. Chowdhury P. Christakoglou C. H. Christensen P. Christiansen T. Chujo S. U. Chung C. C Variable Energy Cyclotron Centre Kolkata India Nuclear Physics Institute of the Czech Academy of Sciences Řež u Prahy Czech Republic Lund University Department of Physics Division of Particle Physics Lund Sweden Physics Department Panjab University Chandigarh India European Organization for Nuclear Research (CERN) Geneva Switzerland Dipartimento DISAT del Politecnico and Sezione INFN Turin Italy Indian Institute of Technology Bombay (IIT) Mumbai India Korea Institute of Science and Technology Information Daejeon Republic of Korea Yale University New Haven Connecticut USA Institute for Theoretical and Experimental Physics Moscow Russia Research Division and ExtreMe Matter Institute EMMI GSI Helmholtzzentrum für Schwerionenforschung GmbH Darmstadt Germany Universidade Estadual de Campinas (UNICAMP) Campinas Brazil National Research Centre Kurchatov Institute Moscow Russia INFN Sezione di Torino Turin Italy Instituto de Física Universidad Nacional Autónoma de México Mexico City Mexico COMSATS Institute of Information Technology (CIIT) Islamabad Pakistan Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche “Enrico Fermi ” Rome Italy INFN Sezione di Bologna Bologna Italy Dipartimento di Fisica e Astronomia dell'Università and Sezione INFN Bologna Italy Bogolyubov Institute for Theoretical Physics National Academy of Sciences of Ukraine Kiev Ukraine Department of Physics and Technology University of Bergen Bergen Norway Institut für Kernphysik Johann Wolfgang Goethe-Universität Frankfurt Frankfurt Germany V. Fock Institute for Physics St. Petersburg State University St. Petersburg Russia Central China Normal University Wuhan China Horia Hulubei National Institute of Physics and Nuclear Engineering Bucharest Romania School of Physics and Astronomy University of Birmingham Birmingham United Kingdom Westfälische Wilhelms-Universität Münster Institut für Kernphysik Münster Germany Physikalisches Institut Ruprecht-Karls-Universität Heidelberg

The production yield of the Λ(1520) baryon resonance is measured at midrapidity in Pb-Pb collisions at sNN = 2.76 TeV with the ALICE detector at the Large Hadron Collider (LHC). The measurement is performed in the Λ(1520)→pK− (and charge conjugate) hadronic decay channel as a function of the transverse momentum (pT) and collision centrality. The ratio of the pT-integrated production of Λ(1520) baryons relative to Λ baryons in central collisions is suppressed by about a factor of 2 with respect to peripheral collisions. This is the first observation of the suppression of a baryonic resonance at the LHC and the first 3σ evidence of Λ(1520) suppression within a single collision system. The measured Λ(1520)/Λ ratio in central collisions is smaller than the value predicted by the statistical hadronization model calculations. The shape of the measured pT distribution and the centrality dependence of the suppression are reproduced by the EPOS3 Monte Carlo event generator. The measurement adds further support to the formation of a dense hadronic phase in the final stages of the evolution of the fireball created in heavy-ion collisions, lasting long enough to cause a significant reduction in the observable yield of short-lived resonances.

关键词： Particle & resonance production Relativistic heavy-ion collisions

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Ground-state phase diagram of a spin-orbit-coupled bosonic superfluid in an optical lattice

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Physical Review A 2016年第1期93卷 013601-013601页

作者： Zhu Chen Zhaoxin Liang National Key Laboratory of Science and Technology on Computational Physics Institute of Applied Physics and Computational Mathematics Beijing 100088 China Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Wenhua Road 72 Shenyang China

In recent experiments, spin-orbit-coupled (SOC) bosonic gases in an optical lattice have been successfully prepared into any Bloch band [Hamner et al., Phys. Rev. Lett. 114, 070401 (2015)], which promises a viable contender in the competitive field of simulating gauge-related phenomena. However, the ground-state phase diagram of such systems in the superfluid regime is still lacking. Here we present a detailed study of the phase diagram in an optically trapped Bose gas with equal-weight Rashba and Dresselhaus SO coupling. We identify four different quantum phases, which include three normal phases and a mixed phase, by considering the wave vector k1, the longitudinal 〈σz〉, and the transverse 〈σx〉 spin polarizations as three order parameters. The ground state of normal phases is a Bloch wave with a single wave vector k1, which can position in arbitrary regions in the Brillouin zone. By contrast, the ground state of the mixed phase is a superposition of two Bloch waves with opposite k1, which, remarkably, may lack periodicity even though the system's Hamiltonian is periodic. This mixed phase in the lattice setting can be seen as the counterpart of the stripe phase associated with the uniform SOC gas. Furthermore, due to the lattice-renormalized SOC, the phase diagram of the model system becomes significantly different from the uniform case when the lattice strength grows. Finally, a scheme for experimentally probing the mixed phase using Bragg spectroscopy is proposed.

关键词： Bosons Cold gases in optical lattices Superfluidity

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The atacama cosmology telescope: DR5 maps of 18000 square degrees of the microwave sky from ACT 2008-2018 data

arXiv

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arXiv 2020年

作者： Naess, Sigurd Aiola, Simone Austermann, Jason E. Battaglia, Nick Beall, James A. Becker, Daniel T. Bond, Richard J. Calabrese, Erminia Choi, Steve K. Cothard, Nicholas F. Crowley, Kevin T. Darwish, Omar Datta, Rahul Denison, Edward V. Devlin, Mark Duell, Cody J. Duff, Shannon M. Duivenvoorden, Adriaan J. Dunkley, Jo Dünner, Rolando Fox, Anna E. Gallardo, Patricio A. Halpern, Mark Han, Dongwon Hasselfield, Matthew Hill, J. Colin Hilton, Gene C. Hilton, Matt Hincks, Adam D. Hložek, Renée Ho, Shuay-Pwu Patty Hubmayr, Johannes Huffenberger, Kevin Hughes, John P. Kosowsky, Arthur B. Louis, Thibaut Madhavacheril, Mathew S. McMahon, Jeff Moodley, Kavilan Nati, Federico Nibarger, John P. Niemack, Michael D. Page, Lyman Partridge, Bruce Salatino, Maria Schaan, Emmanuel Schillaci, Alessandro Schmitt, Benjamin Sherwin, Blake D. Sehgal, Neelima Sifón, Cristóbal Spergel, David Staggs, Suzanne Stevens, Jason Storer, Emilie Ullom, Joel N. Vale, Leila R. van Engelen, Alexander van Lanen, Jeff Vavagiakis, Eve M. Wollack, Edward J. Xu, Zhilei Center for Computational Astrophysics Flatiron Institute New YorkNY10010 United States Department of Astrophysical Sciences Peyton Hall Princeton University PrincetonNJ08544 United States Joseph Henry Laboratories of Physics Jadwin Hall Princeton University PrincetonNJ08544 United States Department of Physics and Astronomy Haverford College HaverfordPA19041 United States Laboratoire de l’Accélérateur Linéaire Univ. Paris-Sud CNRS/IN2P3 Université Paris-Saclay Orsay France NASA/Goddard Space Flight Center GreenbeltMD20771 United States Physics and Astronomy Department Stony Brook University Stony BrookNY11794 United States Astrophysics Research Centre University of KwaZulu-Natal Westville Campus Durban4041 South Africa Department of Physics California Institute of Technology PasadenaCA91125 United States Instituto de Física Pontificia Universidad Católica de Valparaíso Chile Lawrence Berkeley National Laboratory BerkeleyCA94720 United States Berkeley Center for Cosmological Physics University of California BerkeleyCA94720 United States School of Physics and Astronomy Cardiff University The Parade Cardiff WalesCF24 3AA United Kingdom Department of Physics University of Milano-Bicocca Piazza della Scienza 3 MilanoMI20126 Italy Astrophysics Research Centre School of Mathematics Statistics and Computer Science University of KwaZulu-Natal Durban4041 South Africa Department of Physics and Astronomy Rutgers State University of New Jersey PiscatawayNJ08854-8019 United States StanfordCA United States Instituto de Astrofísica and Centro de Astro-Ingeniería Facultad de Física Pontificia Universidad Católica de Chile Av. Vicuña Mackenna 4860 Macul Santiago7820436 Chile Department of Physics Cornell University IthacaNY14853 United States Department of Astronomy Cornell University IthacaNY14853 United States Dept. of Physics and Astronomy Johns Hopkins University 3400 N. Charles St. BaltimoreMD21218 United States NIST Q

This paper presents a maximum-likelihood algorithm for combining sky maps with disparate sky coverage, angular resolution and spatially varying anisotropic noise into a single map of the sky. We use this to merge hundreds of individual maps covering the 2008–2018 ACT observing seasons, resulting in by far the deepest ACT maps released so far. We also combine the maps with the full Planck maps, resulting in maps that have the best features of both Planck and ACT: Planck’s nearly white noise on intermediate and large angular scales and ACT’s high-resolution and sensitivity on small angular scales. The maps cover over 18 000 square degrees, nearly half the full sky, at 100, 150 and 220 GHz. They reveal 4 000 optically-confirmed clusters through the Sunyaev Zel’dovich effect (SZ) and 18 500 point source candidates at > 5σ, the largest single collection of SZ clusters and millimeter wave sources to date. The multi-frequency maps provide millimeter images of nearby galaxies and individual Milky Way nebulae, and even clear detections of several nearby stars. Other anticipated uses of these maps include, for example, thermal SZ and kinematic SZ cluster stacking, CMB cluster lensing and galactic dust science. The method itself has negligible bias. However, due to the preliminary nature of some of the component data sets, we caution that these maps should not be used for precision cosmological analysis. The maps are part of ACT DR5, and are available on LAMBDA at https://***/product/act/actpol_prod_***. There is also a web atlas at https://***/public/snaess/actpol/dr5/atlas. © 2020, CC0.

关键词： Galaxies

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A Geometric Approach for the Upper Bound Theorem for Minkowski Sums of Convex Polytopes 31

A Geometric Approach for the Upper Bound Theorem for Minkows...

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31st International Symposium on computational Geometry, SoCG 2015

作者： Karavelas, Menelaos I. Tzanaki, Eleni Department of Mathematics and Applied Mathematics University of Crete Heraklion Greece Institute of Applied and Computational Mathematics Foundation for Research and Technology Hellas Heraklion Greece

ISBN: (纸本)9783939897835

We derive tight expressions for the maximum number of κ-faces, 0 ≤ κ ≤ d - 1, of the Minkowski sum, P1++Pr, of r convex d-polytopes P1, . . . ,Pr in d, where d ≥ 2 and r 1 + + Pr as a section of the Cayley polytope C of the summands;bounding the κ-faces of P1 + + Pr reduces to bounding the subset of the (k + r - 1)-faces of C that contain vertices from each of the r polytopes. We end our paper with a sketch of an explicit construction that establishes the tightness of the upper bounds.

关键词： Algebra

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Time reversal in elastodynamics and applications to structural health monitoring 5

Time reversal in elastodynamics and applications to structur...

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5th ECCOMAS Thematic Conference on computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2015

作者： Panagiotopoulos, Christos G. Petromichelakis, Yiannis Tsogka, Chrysoula Institute of Applied and Computational Mathematics Foundation for Research and Technology Hellas Heraklion Greece Department of Mathematics and Applied Mathematics University of Crete Heraklion Greece

In structural health monitoring, detection of localized damage can be achieved by exploiting recorded signals at a limited number of sensors within the structure. Here we propose the localization of damage using an array of sensors as a computational time-reversal mirror (TRM). Time reversal (TR) is a physical process that exploits the time reversibility of wave equations and achieves re-focusing of the wave on the source of its origin by sending back, reversed in time, the signals recorded on an array of transducers. TR was originally introduced by Mathias Fink and his group and has several applications ranging from medical imaging to telecommunications [14]. In the present work, we perform time reversal numerically in order to effectively detect and localize defects in a bounded two-dimensional elastic domain. This is a generalization of a respective time-reversal implementation in an acoustic medium [12]. The solid contains a number of Nr sensors which can act as sources as well. Our data is the response matrix of the scattered field, that is, the difference between the total field obtained in the damaged structure and the incident field corresponding to the response in the healthy structure. Numerical solution of the wave propagation problem is performed using a mixed finite element formulation in terms of the velocity and stress fields [6]. In order to dissociate the response caused by Nd different defects, we apply the singular value decomposition (SVD) of the response matrix, while back-propagation of the projection of each singular vector corresponding to a non-zero singular value is performed in order to highlight each defect separately.

关键词： Damage detection

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