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Observation of an energy-dependent difference in elliptic flow between particles and antiparticles in relativistic heavy ion collisions.
Adamczyk, L; Adkins, J K; Agakishiev, G; Aggarwal, M M; Ahammed, Z; Alekseev, I; Alford, J; Anson, C D; Aparin, A; Arkhipkin, D; Aschenauer, E; Averichev, G S; Balewski, J; Banerjee, A; Barnovska, Z; Beavis, D R; Bellwied, R; Betancourt, M J; Betts, R R; Bhasin, A; Bhati, A K; Bhattarai, P; Bichsel, H; Bielcik, J; Bielcikova, J; Bland, L C; Bordyuzhin, I G; Borowski, W; Bouchet, J; Brandin, A V; Brovko, S G; Bruna, E; Bültmann, S; Bunzarov, I; Burton, T P; Butterworth, J; Cai, X Z; Caines, H; Calderón de la Barca Sánchez, M; Cebra, D; Cendejas, R; Cervantes, M C; Chaloupka, P; Chang, Z; Chattopadhyay, S; Chen, H F; Chen, J H; Chen, J Y; Chen, L; Cheng, J.
Afiliação
  • Adamczyk L; AGH University of Science and Technology, Cracow, Poland.
  • Adkins JK; University of Kentucky, Lexington, Kentucky 40506-0055, USA.
  • Agakishiev G; Joint Institute for Nuclear Research, Dubna 141 980, Russia.
  • Aggarwal MM; Panjab University, Chandigarh 160014, India.
  • Ahammed Z; Variable Energy Cyclotron Centre, Kolkata 700064, India.
  • Alekseev I; Alikhanov Institute for Theoretical and Experimental Physics, Moscow, Russia.
  • Alford J; Kent State University, Kent, Ohio 44242, USA.
  • Anson CD; The Ohio State University, Columbus, Ohio 43210, USA.
  • Aparin A; Joint Institute for Nuclear Research, Dubna 141 980, Russia.
  • Arkhipkin D; Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Aschenauer E; Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Averichev GS; Joint Institute for Nuclear Research, Dubna 141 980, Russia.
  • Balewski J; Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA.
  • Banerjee A; Variable Energy Cyclotron Centre, Kolkata 700064, India.
  • Barnovska Z; Nuclear Physics Institute AS CR, 250 68 Rez/Prague, Czech Republic.
  • Beavis DR; Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Bellwied R; University of Houston, Houston, Texas 77204, USA.
  • Betancourt MJ; Massachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USA.
  • Betts RR; University of Illinois at Chicago, Chicago, Illinois 60607, USA.
  • Bhasin A; University of Jammu, Jammu 180001, India.
  • Bhati AK; Panjab University, Chandigarh 160014, India.
  • Bhattarai P; University of Texas, Austin, Texas 78712, USA.
  • Bichsel H; University of Washington, Seattle, Washington 98195, USA.
  • Bielcik J; Czech Technical University in Prague, FNSPE, Prague, 115 19, Czech Republic.
  • Bielcikova J; Nuclear Physics Institute AS CR, 250 68 Rez/Prague, Czech Republic.
  • Bland LC; Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Bordyuzhin IG; Alikhanov Institute for Theoretical and Experimental Physics, Moscow, Russia.
  • Borowski W; SUBATECH, Nantes, France.
  • Bouchet J; Kent State University, Kent, Ohio 44242, USA.
  • Brandin AV; Moscow Engineering Physics Institute, Moscow, Russia.
  • Brovko SG; University of California, Davis, California 95616, USA.
  • Bruna E; Yale University, New Haven, Connecticut 06520, USA.
  • Bültmann S; Old Dominion University, Norfolk, Virginia 23529, USA.
  • Bunzarov I; Joint Institute for Nuclear Research, Dubna 141 980, Russia.
  • Burton TP; Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Butterworth J; Rice University, Houston, Texas 77251, USA.
  • Cai XZ; Shanghai Institute of Applied Physics, Shanghai 201800, China.
  • Caines H; Yale University, New Haven, Connecticut 06520, USA.
  • Calderón de la Barca Sánchez M; University of California, Davis, California 95616, USA.
  • Cebra D; University of California, Davis, California 95616, USA.
  • Cendejas R; Pennsylvania State University, University Park, Pennsylvania 16802, USA.
  • Cervantes MC; Texas A&M University, College Station, Texas 77843, USA.
  • Chaloupka P; Czech Technical University in Prague, FNSPE, Prague, 115 19, Czech Republic.
  • Chang Z; Texas A&M University, College Station, Texas 77843, USA.
  • Chattopadhyay S; Variable Energy Cyclotron Centre, Kolkata 700064, India.
  • Chen HF; University of Science & Technology of China, Hefei 230026, China.
  • Chen JH; Shanghai Institute of Applied Physics, Shanghai 201800, China.
  • Chen JY; Central China Normal University (HZNU), Wuhan 430079, China.
  • Chen L; Central China Normal University (HZNU), Wuhan 430079, China.
  • Cheng J; Tsinghua University, Beijing 100084, China.
Phys Rev Lett ; 110(14): 142301, 2013 Apr 05.
Article em En | MEDLINE | ID: mdl-25166982
Elliptic flow (v(2)) values for identified particles at midrapidity in Au + Au collisions, measured by the STAR experiment in the beam energy scan at RHIC at sqrt[s(NN)] = 7.7-62.4 GeV, are presented. A beam-energy-dependent difference of the values of v(2) between particles and corresponding antiparticles was observed. The difference increases with decreasing beam energy and is larger for baryons compared to mesons. This implies that, at lower energies, particles and antiparticles are not consistent with the universal number-of-constituent-quark scaling of v(2) that was observed at sqrt[s(NN)] = 200 GeV.
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Bases de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2013 Tipo de documento: Article País de afiliação: Polônia
Buscar no Google
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Bases de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2013 Tipo de documento: Article País de afiliação: Polônia