K1/K∗ enhancement in heavy-ion collisions and the restoration of chiral symmetry

被引：1

作者：

Sung, Haesom ^{[1
,2
]}

Cho, Sungtae ^{[3
]}

Ko, Che Ming ^{[2
,4
]}

Lee, Su Houng ^{[1
]}

Lim, Sanghoon ^{[5
]}

机构：

[1] Yonsei Univ, Inst Phys & Appl Phys, Dept Phys, Seoul 03722, South Korea

[2] Texas A&M Univ, Inst Cyclotron, College Stn, TX 77843 USA

[3] Kangwon Natl Univ, Div Sci Educ, Chunchon 24341, Chuncheon, South Korea

[4] Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA

[5] Pusan Natl Univ, Dept Phys, Pusan 46241, South Korea

来源：

PHYSICAL REVIEW C | 2024年 / 109卷 / 04期

基金：

新加坡国家研究基金会;

关键词：

MODEL;

D O I：

10.1103/PhysRevC.109.044911

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We extend the recent study of K1/K* enhancement as a signature of chiral symmetry restoration in heavy ion collisions at the CERN Large Hadron Collider via the kinetic approach to include the effects due to nonunity hadron fugacities during the evolution of produced hadronic matter and the temperature-dependent K1 mass. Although including nonunity pion and kaon fugacities reduces slightly the K1/K* enhancement found in previous study due to chiral symmetry restoration, adding temperature-dependent K1 mass leads to a substantial further reduction of the K1/K* enhancement. However, the final K1/K* ratio still shows a factor of 2.4 and 1.3 enhancement, respectively, in peripheral and midcentral collisions compared to the case without chiral symmetry restoration, confirming its use as a good signature for chiral symmetry restoration in the hot dense matter produced in relativistic heavy ion collisions.

引用

页数：6

共 21 条

[1] Production of charged pions, kaons, and (anti-)protons in Pb-Pb and inelastic pp collisions at √sNN=5.02 TeV [J].

Acharya, S. ;

Adamova, D. ;

Adhya, S. P. ;

Adler, A. ;

Adolfsson, J. ;

Aggarwal, M. M. ;

Rinella, G. Aglieri ;

Agnello, M. ;

Agrawal, N. ;

Ahammed, Z. ;

Ahmad, S. ;

Ahn, S. U. ;

Akindinov, A. ;

Al-Turany, M. ;

Alam, S. N. ;

Albuquerque, D. S. D. ;

Aleksandrov, D. ;

Alessandro, B. ;

Alfanda, H. M. ;

Alfaro Molina, R. ;

Ali, B. ;

Ali, Y. ;

Alici, A. ;

Alkin, A. ;

Alme, J. ;

Alt, T. ;

Altenkamper, L. ;

Altsybeev, I ;

Anaam, M. N. ;

Andrei, C. ;

Andreou, D. ;

Andrews, H. A. ;

Andronic, A. ;

Angeletti, M. ;

Anguelov, V ;

Anson, C. ;

Anticic, T. ;

Antinori, F. ;

Antonioli, P. ;

Anwar, R. ;

Apadula, N. ;

Aphecetche, L. ;

Appelshaeuser, H. ;

Arcelli, S. ;

Arnaldi, R. ;

Arratia, M. ;

Arsene, I. C. ;

Arslandok, M. ;

Augustinus, A. ;

Averbeck, R. .

PHYSICAL REVIEW C, 2020, 101 (04)

[2] Hadron production in central nucleus-nucleus collisions at chemical freeze-out [J].

Andronic, A. ;

Braun-Munzinger, P. ;

Stachel, J. .

NUCLEAR PHYSICS A, 2006, 772 (3-4) :167-199

[3] The statistical model in Pb-Pb collisions at the LHC [J].

Andronic, A. ;

Braun-Munzinger, P. ;

Redlich, K. ;

Stachel, J. .

NUCLEAR PHYSICS A, 2013, 904 :535C-538C

[4] Chiral crossover in QCD at zero and non-zero chemical potentials HotQCD Collaboration [J].

Bazavov, A. ;

Ding, H-T ;

Hegde, R. ;

Kaczmarek, O. ;

Karsch, F. ;

Karthik, N. ;

Laermann, E. ;

Lahiri, Anirban ;

Larsen, R. ;

Li, S-T ;

Mukherjee, Swagato ;

Ohno, H. ;

Petreczky, R. ;

Sandmeyer, H. ;

Schmidt, C. ;

Sharma, S. ;

Steinbrecher, R. .

PHYSICS LETTERS B, 2019, 795 :15-21

[5] The QCD equation of state with dynamical quarks [J].

Borsanyi, Szabolcs ;

Endrodi, Gergely ;

Fodor, Zoltan ;

Jakovac, Antal ;

Katz, Sandor D. ;

Krieg, Stefan ;

Ratti, Claudia ;

Szabo, Kalman K. .

JOURNAL OF HIGH ENERGY PHYSICS, 2010, (11)

[6] Reduction of the K* meson abundance in heavy ion collisions [J].

Cho, Sungtae ;

Lee, Su Houng .

PHYSICAL REVIEW C, 2018, 97 (03)

[7] Chiral effective model with the Polyakov loop [J].

Fukushima, K .

PHYSICS LETTERS B, 2004, 591 (3-4) :277-284

[8]

Gomez Nicola A., 2023, J. High Energy Phys., V08, P148

[9] In-medium spectral functions of vector- and axial-vector mesons from the functional renormalization group [J].

Jung, Christopher ;

Rennecke, Fabian ;

Tripolt, Ralf-Arno ;

von Smekal, Lorenz ;

Wambach, Jochen .

PHYSICAL REVIEW D, 2017, 95 (03)

[10] Vector meson mass in the chiral symmetry restored vacuum [J].

Kim, Jisu ;

Lee, Su Houng .

PHYSICAL REVIEW D, 2021, 103 (05)

← 1 2 3 →