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Measurements of Proton High-Order Cumulants in sqrt[s_{NN}]=3 GeV Au+Au Collisions and Implications for the QCD Critical Point.
Abdallah, M S; Aboona, B E; Adam, J; Adamczyk, L; Adams, J R; Adkins, J K; Agakishiev, G; Aggarwal, I; Aggarwal, M M; Ahammed, Z; Alekseev, I; Anderson, D M; Aparin, A; Aschenauer, E C; Ashraf, M U; Atetalla, F G; Attri, A; Averichev, G S; Bairathi, V; Baker, W; Ball Cap, J G; Barish, K; Behera, A; Bellwied, R; Bhagat, P; Bhasin, A; Bielcik, J; Bielcikova, J; Bordyuzhin, I G; Brandenburg, J D; Brandin, A V; Bunzarov, I; Cai, X Z; Caines, H; Calderón de la Barca Sánchez, M; Cebra, D; Chakaberia, I; Chaloupka, P; Chan, B K; Chang, F-H; Chang, Z; Chankova-Bunzarova, N; Chatterjee, A; Chattopadhyay, S; Chen, D; Chen, J; Chen, J H; Chen, X; Chen, Z; Cheng, J.
Afiliación
  • Abdallah MS; American University of Cairo, New Cairo 11835, New Cairo, Egypt.
  • Aboona BE; Texas A&M University, College Station, Texas 77843.
  • Adam J; Brookhaven National Laboratory, Upton, New York 11973.
  • Adamczyk L; AGH University of Science and Technology, FPACS, Cracow 30-059, Poland.
  • Adams JR; Ohio State University, Columbus, Ohio 43210.
  • Adkins JK; University of Kentucky, Lexington, Kentucky 40506-0055.
  • Agakishiev G; Joint Institute for Nuclear Research, Dubna 141 980.
  • Aggarwal I; Panjab University, Chandigarh 160014, India.
  • 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 NRC "Kurchatov Institute", Moscow 117218.
  • Anderson DM; National Research Nuclear University MEPhI, Moscow 115409.
  • Aparin A; Texas A&M University, College Station, Texas 77843.
  • Aschenauer EC; Joint Institute for Nuclear Research, Dubna 141 980.
  • Ashraf MU; Brookhaven National Laboratory, Upton, New York 11973.
  • Atetalla FG; Central China Normal University, Wuhan, Hubei 430079.
  • Attri A; Kent State University, Kent, Ohio 44242.
  • Averichev GS; Panjab University, Chandigarh 160014, India.
  • Bairathi V; Joint Institute for Nuclear Research, Dubna 141 980.
  • Baker W; Instituto de Alta Investigación, Universidad de Tarapacá, Arica 1000000, Chile.
  • Ball Cap JG; University of California, Riverside, California 92521.
  • Barish K; University of Houston, Houston, Texas 77204.
  • Behera A; University of California, Riverside, California 92521.
  • Bellwied R; State University of New York, Stony Brook, New York 11794.
  • Bhagat P; University of Houston, Houston, Texas 77204.
  • Bhasin A; University of Jammu, Jammu 180001, India.
  • Bielcik J; University of Jammu, Jammu 180001, India.
  • Bielcikova J; Czech Technical University in Prague, FNSPE, Prague 115 19, Czech Republic.
  • Bordyuzhin IG; Nuclear Physics Institute of the CAS, Rez 250 68, Czech Republic.
  • Brandenburg JD; Alikhanov Institute for Theoretical and Experimental Physics NRC "Kurchatov Institute", Moscow 117218.
  • Brandin AV; Brookhaven National Laboratory, Upton, New York 11973.
  • Bunzarov I; National Research Nuclear University MEPhI, Moscow 115409.
  • Cai XZ; Joint Institute for Nuclear Research, Dubna 141 980.
  • Caines H; Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800.
  • Calderón de la Barca Sánchez M; Yale University, New Haven, Connecticut 06520.
  • Cebra D; University of California, Davis, California 95616.
  • Chakaberia I; University of California, Davis, California 95616.
  • Chaloupka P; Brookhaven National Laboratory, Upton, New York 11973.
  • Chan BK; Lawrence Berkeley National Laboratory, Berkeley, California 94720.
  • Chang FH; Czech Technical University in Prague, FNSPE, Prague 115 19, Czech Republic.
  • Chang Z; University of California, Los Angeles, California 90095.
  • Chankova-Bunzarova N; National Cheng Kung University, Tainan 70101.
  • Chatterjee A; Brookhaven National Laboratory, Upton, New York 11973.
  • Chattopadhyay S; Joint Institute for Nuclear Research, Dubna 141 980.
  • Chen D; Central China Normal University, Wuhan, Hubei 430079.
  • Chen J; Variable Energy Cyclotron Centre, Kolkata 700064, India.
  • Chen JH; University of California, Riverside, California 92521.
  • Chen X; Shandong University, Qingdao, Shandong 266237.
  • Chen Z; Fudan University, Shanghai, 200433.
  • Cheng J; University of Science and Technology of China, Hefei, Anhui 230026.
Phys Rev Lett ; 128(20): 202303, 2022 May 20.
Article en En | MEDLINE | ID: mdl-35657878
ABSTRACT
We report cumulants of the proton multiplicity distribution from dedicated fixed-target Au+Au collisions at sqrt[s_{NN}]=3.0 GeV, measured by the STAR experiment in the kinematic acceptance of rapidity (y) and transverse momentum (p_{T}) within -0.5proton cumulant ratio is measured to be C_{4}/C_{2}=-0.85±0.09 (stat)±0.82 (syst), which is 2σ below the Poisson baseline with respect to both the statistical and systematic uncertainties. The hadronic transport UrQMD model reproduces our C_{4}/C_{2} in the measured acceptance. Compared to higher energy results and the transport model calculations, the suppression in C_{4}/C_{2} is consistent with fluctuations driven by baryon number conservation and indicates an energy regime dominated by hadronic interactions. These data imply that the QCD critical region, if created in heavy-ion collisions, could only exist at energies higher than 3 GeV.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2022 Tipo del documento: Article País de afiliación: Egipto
Texto completo
Añadir a Mi BVS
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2022 Tipo del documento: Article País de afiliación: Egipto