Nonmonotonic Energy Dependence of Net-Proton Number Fluctuations

. 2021 Mar 05 ; 126 (9) : 092301.

Status PubMed-not-MEDLINE Jazyk angličtina Země Spojené státy americké Médium print

Typ dokumentu časopisecké články

Perzistentní odkaz   https://www.medvik.cz/link/pmid33750161

Nonmonotonic variation with collision energy (sqrt[s_{NN}]) of the moments of the net-baryon number distribution in heavy-ion collisions, related to the correlation length and the susceptibilities of the system, is suggested as a signature for the quantum chromodynamics critical point. We report the first evidence of a nonmonotonic variation in the kurtosis times variance of the net-proton number (proxy for net-baryon number) distribution as a function of sqrt[s_{NN}] with 3.1 σ significance for head-on (central) gold-on-gold (Au+Au) collisions measured solenoidal tracker at Relativistic Heavy Ion Collider. Data in noncentral Au+Au collisions and models of heavy-ion collisions without a critical point show a monotonic variation as a function of sqrt[s_{NN}].

Abilene Christian University Abilene Texas 79699 USA

AGH University of Science and Technology FPACS Cracow 30 059 Poland

Alikhanov Institute for Theoretical and Experimental Physics NRC Kurchatov Institute Moscow 117218 Russia

American University of Cairo New Cairo 11835 New Cairo Egypt

Argonne National Laboratory Argonne Illinois 60439 USA

Brookhaven National Laboratory Upton New York 11973 USA

Central China Normal University Wuhan Hubei 430079 China

Creighton University Omaha Nebraska 68178 USA

Czech Technical University Prague FNSPE Prague 115 19 Czech Republic

ELTE Eötvös Loránd University Budapest H 1117 Hungary

Frankfurt Institute for Advanced Studies FIAS Frankfurt 60438 Germany

Fudan University Shanghai 200433 China

Huzhou University Huzhou Zhejiang 313000 China

Indian Institute of Science Education and Research Berhampur 760010 India

Indian Institute of Science Education and Research Tirupati Tirupati 517507 India

Indian Institute of Technology Patna Bihar 801106 India

Indiana University Bloomington Indiana 47408 USA

Institute of Modern Physics Chinese Academy of Sciences Lanzhou Gansu 730000 China

Institute of Nuclear Physics PAN Cracow 31 342 Poland

Instituto de Alta Investigación Universidad de Tarapacá Arica 1000000 Chile

Joint Institute for Nuclear Research Dubna 141 980 Russia

Kent State University Kent Ohio 44242 USA

Lawrence Berkeley National Laboratory Berkeley California 94720 USA

Lehigh University Bethlehem Pennsylvania 18015 USA

Max Planck Institut für Physik Munich 80805 Germany

Michigan State University East Lansing Michigan 48824 USA

National Cheng Kung University Tainan 70101 Taiwan

National Institute of Science Education and Research HBNI Jatni 752050 India

National Research Nuclear University MEPhI Moscow 115409 Russia

NRC Kurchatov Institute Institute of High Energy Physics Protvino 142281 Russia

Nuclear Physics Institute of the CAS Rez 250 68 Czech Republic

Ohio State University Columbus Ohio 43210 USA

Panjab University Chandigarh 160014 India

Pennsylvania State University University Park Pennsylvania 16802 USA

Purdue University West Lafayette Indiana 47907 USA

Rice University Houston Texas 77251 USA

Rutgers University Piscataway New Jersey 08854 USA

Shandong University Qingdao Shandong 266237 China

Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201800 China

Southern Connecticut State University New Haven Connecticut 06515 USA

State University of New York Stony Brook New York 11794 USA

Technische Universität Darmstadt Darmstadt 64289 Germany

Temple University Philadelphia Pennsylvania 19122 USA

Texas A and M University College Station Texas 77843 USA

Tsinghua University Beijing 100084 China

United States Naval Academy Annapolis Maryland 21402 USA

Universidade de São Paulo São Paulo 05314 970 Brazil

University of California Berkeley California 94720 USA

University of California Davis California 95616 USA

University of California Los Angeles California 90095 USA

University of California Riverside California 92521 USA

University of Heidelberg Heidelberg 69120 Germany

University of Houston Houston Texas 77204 USA

University of Illinois at Chicago Chicago Illinois 60607 USA

University of Jammu Jammu 180001 India

University of Kentucky Lexington Kentucky 40506 0055 USA

University of Science and Technology of China Hefei Anhui 230026 China

University of Texas Austin Texas 78712 USA

University of Tsukuba Tsukuba Ibaraki 305 8571 Japan

Valparaiso University Valparaiso Indiana 46383 USA

Variable Energy Cyclotron Centre Kolkata 700064 India

Warsaw University of Technology Warsaw 00 661 Poland

Wayne State University Detroit Michigan 48201 USA

Yale University New Haven Connecticut 06520 USA

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