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Beam-energy dependence of the directed flow of protons, antiprotons, and pions in Au+Au 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 C; Averichev, G S; Banerjee, A; Beavis, D R; Bellwied, 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; Bültmann, S; Bunzarov, I; Burton, T P; Butterworth, J; 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, L; Cheng, J; Cherney, M; Chikanian, A; Christie, W; Chwastowski, J; Codrington, M J M; Contin, G; Cramer, J G.
Affiliation
  • 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; 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 EC; Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Averichev GS; Joint Institute for Nuclear Research, Dubna 141 980, Russia.
  • Banerjee A; Variable Energy Cyclotron Centre, Kolkata 700064, India.
  • Beavis DR; Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Bellwied R; University of Houston, Houston, Texas 77204, 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.
  • 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.
  • 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 and Technology of China, Hefei 230026, China.
  • Chen JH; Shanghai Institute of Applied Physics, Shanghai 201800, China.
  • Chen L; Central China Normal University (HZNU), Wuhan 430079, China.
  • Cheng J; Tsinghua University, Beijing 100084, China.
  • Cherney M; Creighton University, Omaha, Nebraska 68178, USA.
  • Chikanian A; Yale University, New Haven, Connecticut 06520, USA.
  • Christie W; Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Chwastowski J; Cracow University of Technology, Cracow, Poland.
  • Codrington MJ; University of Texas, Austin, Texas 78712, USA.
  • Contin G; Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
  • Cramer JG; University of Washington, Seattle, Washington 98195, USA.
Phys Rev Lett ; 112(16): 162301, 2014 Apr 25.
Article de En | MEDLINE | ID: mdl-24815640
ABSTRACT
Rapidity-odd directed flow (v1) measurements for charged pions, protons, and antiprotons near midrapidity (y=0) are reported in sNN=7.7, 11.5, 19.6, 27, 39, 62.4, and 200 GeV Au+Au collisions as recorded by the STAR detector at the Relativistic Heavy Ion Collider. At intermediate impact parameters, the proton and net-proton slope parameter dv1/dy|y=0 shows a minimum between 11.5 and 19.6 GeV. In addition, the net-proton dv1/dy|y=0 changes sign twice between 7.7 and 39 GeV. The proton and net-proton results qualitatively resemble predictions of a hydrodynamic model with a first-order phase transition from hadronic matter to deconfined matter, and differ from hadronic transport calculations.
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Collection: 01-internacional Base de données: MEDLINE Type d'étude: Prognostic_studies Langue: En Journal: Phys Rev Lett Année: 2014 Type de document: Article Pays d'affiliation: Pologne
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PubMed Links

Collection: 01-internacional Base de données: MEDLINE Type d'étude: Prognostic_studies Langue: En Journal: Phys Rev Lett Année: 2014 Type de document: Article Pays d'affiliation: Pologne