Nonmonotonic Energy Dependence of Net-Proton Number Fluctuations

doi:10.1103/PhysRevLett.126.092301

Nonmonotonic Energy Dependence of Net-Proton Number Fluctuations

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Resumen

Nonmonotonic variation with collision energy (sNN) 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 sNN 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 sNN.

Idioma original	English
Número de artículo	092301
Publicación	Physical Review Letters
Volumen	126
N.º	9
DOI	https://doi.org/10.1103/PhysRevLett.126.092301
Estado	Published - mar 5 2021

Nota bibliográfica

Publisher Copyright:
© 2021 American Physical Society.

Financiación

We thank P. Braun-Munzinger, S. Gupta, F. Karsch, M. Kitazawa, V. Koch, D. Mishra, K. Rajagopal, K. Redlich, and M. Stephanov for stimulating discussions. We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at LBNL, and the Open Science Grid consortium for providing resources and support. This work was supported in part by the Office of Nuclear Physics within the U.S. DOE Office of Science, the U.S. National Science Foundation, the Ministry of Education and Science of the Russian Federation, the National Natural Science Foundation of China, the Chinese Academy of Science, the Ministry of Science and Technology of China and the Chinese Ministry of Education, the Higher Education Sprout Project by the Ministry of Education at NCKU, the National Research Foundation of Korea, the Czech Science Foundation and the Ministry of Education, Youth, and Sports of the Czech Republic, the Hungarian National Research, Development, and Innovation Office, the New National Excellency Program of the Hungarian Ministry of Human Capacities, the Department of Atomic Energy and the Department of Science and Technology of the government of India, the National Science Center of Poland, the Ministry of Science, Education, and Sports of the Republic of Croatia, RosAtom of Russia and the German Bundesministerium fur Bildung, Wissenschaft, Forschung, and Technologie (BMBF), the Helmholtz Association, the Ministry of Education, Culture, Sports, Science, and Technology (MEXT), and the Japan Society for the Promotion of Science (JSPS).

Financiadores	Número del financiador
Hungarian Ministry of Human Capacities
Government of India, Department of Atomic Energy
National Research Foundation of Korea
Max Delbrück Center for Molecular Medicine in the Helmholtz Association
Ministry of Education of the People's Republic of China
Ministry of Science Education and Sports of the Republic of Croatia
Grantová Agentura České Republiky
U.S. Department of Energy Chinese Academy of Sciences Guangzhou Municipal Science and Technology Project Oak Ridge National Laboratory Extreme Science and Engineering Discovery Environment National Science Foundation National Energy Research Scientific Computing Center National Natural Science Foundation of China
RosAtom of Russia
Department of Science and Technology, Ministry of Science and Technology, India
Bundesministerium für Bildung und Forschung
Ministry for Education and Science of the Russian Federation
Ministry of Education at NCKU
Ministry of Science and Technology of the People's Republic of China
Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie
Narodowym Centrum Nauki
Chinese Academy of Sciences
National Science Foundation Office of International Science and Engineering
Horia Hulubei National Institute for Physics and Nuclear Engineering
Ministerstvo Školství, Mládeže a Tělovýchovy
Hungarian National Research Fund/National Research, Development and Innovation Office
Ministry of Education, Culture, Sports, Science and Technology
National Natural Science Foundation of China (NSFC)
Japan Society for the Promotion of Science Fund for the Promotion of Joint International Research	19H05598
Japan Society for the Promotion of Science Fund for the Promotion of Joint International Research

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.126.092301

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title = "Nonmonotonic Energy Dependence of Net-Proton Number Fluctuations",

abstract = "Nonmonotonic variation with collision energy (sNN) 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 sNN 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 sNN.",

author = "J. Adam and L. Adamczyk and Adams, \{J. R.\} and Adkins, \{J. K.\} and G. Agakishiev and Aggarwal, \{M. M.\} and Z. Ahammed and I. Alekseev and Anderson, \{D. M.\} and A. Aparin and Aschenauer, \{E. C.\} and Ashraf, \{M. U.\} and Atetalla, \{F. G.\} and A. Attri and Averichev, \{G. S.\} and V. Bairathi and K. Barish and A. Behera and R. Bellwied and A. Bhasin and J. Bielcik and J. Bielcikova and Bland, \{L. C.\} and Bordyuzhin, \{I. G.\} and Brandenburg, \{J. D.\} and Brandin, \{A. V.\} and J. Butterworth and H. Caines and \{Calder{\'o}n De La Barca S{\'a}nchez\}, M. and D. Cebra and I. Chakaberia and P. Chaloupka and Chan, \{B. K.\} and Chang, \{F. H.\} and Z. Chang and N. Chankova-Bunzarova and A. Chatterjee and D. Chen and J. Chen and Chen, \{J. H.\} and X. Chen and Z. Chen and J. Cheng and M. Cherney and M. Chevalier and S. Choudhury and W. Christie and X. Chu and Crawford, \{H. J.\} and R. Fatemi",

note = "Publisher Copyright: {\textcopyright} 2021 American Physical Society. ",

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N2 - Nonmonotonic variation with collision energy (sNN) 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 sNN 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 sNN.

AB - Nonmonotonic variation with collision energy (sNN) 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 sNN 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 sNN.

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JO - Physical Review Letters

JF - Physical Review Letters

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ER -

Nonmonotonic Energy Dependence of Net-Proton Number Fluctuations

Resumen

Nota bibliográfica

Financiación

ASJC Scopus subject areas

Acceder al documento

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