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Energy dependence of moments of net-proton multiplicity distributions at RHIC.
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; Balewski, J; Banerjee, A; Barnovska, Z; 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.
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; 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.
  • 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.
  • 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.
Phys Rev Lett ; 112(3): 032302, 2014 Jan 24.
Article em En | MEDLINE | ID: mdl-24484135
ABSTRACT
We report the beam energy (sqrt[sNN]=7.7-200 GeV) and collision centrality dependence of the mean (M), standard deviation (σ), skewness (S), and kurtosis (κ) of the net-proton multiplicity distributions in Au+Au collisions. The measurements are carried out by the STAR experiment at midrapidity (|y|<0.5) and within the transverse momentum range 0.4Heavy Ion Collider. These measurements are important for understanding the quantum chromodynamic phase diagram. The products of the moments, Sσ and κσ2, are sensitive to the correlation length of the hot and dense medium created in the collisions and are related to the ratios of baryon number susceptibilities of corresponding orders. The products of moments are found to have values significantly below the Skellam expectation and close to expectations based on independent proton and antiproton production. The measurements are compared to a transport model calculation to understand the effect of acceptance and baryon number conservation and also to a hadron resonance gas model.
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Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2014 Tipo de documento: Article País de afiliação: Polônia
Buscar no Google
Adicionar na Minha BVS
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Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2014 Tipo de documento: Article País de afiliação: Polônia