Spin alignment of vector mesons from quark dynamics in a rotating medium

被引：12

作者：

Wei, Minghua ^{[1
]}

Huang, Mei ^{[2
]}

机构：

[1] Fudan Univ, Inst Modern Phys, Shanghai 200433, Peoples R China

[2] Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China

来源：

CHINESE PHYSICS C | 2023年 / 47卷 / 10期

基金：

中国国家自然科学基金;

关键词：

spin alignment; QCD medium; vector meson; QUANTUM-FIELD-THEORY; JONA-LASINIO MODEL; MAGNETIC-FIELD; POLARIZATION; TEMPERATURE;

D O I：

10.1088/1674-1137/acf036

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：

Vorticities in heavy-ion collisions (HICs) are supposed to induce spin alignment and polarization phenomena of quarks and mesons. In this work, we analyze the spin alignment of vector mesons f and ? induced by rotation from quark dynamics in the framework of the Nambu-Jona-Lasinio (NJL) model. The rotating angular velocity induces mass splitting of spin components for vector ?,? mesons M-?,M-?(?) ? M-?,M-?(? = 0) - s(z)?. This behavior contributes to the spin alignment of vector mesons ?,? in an equilibrium medium and naturally explains the negative deviation ?(00) of -1/3 for vector mesons. Incidentally, the positive deviation ?(00) of -1/3 under the magnetic field can also be easily understood from quark dynamics.

引用

页数：13

共 48 条

[1]

Abdallah M. S., 2023, Nature (London), V614, P244

[2] Evidence of Spin-Orbital Angular Momentum Interactions in Relativistic Heavy-Ion Collisions [J].

Acharya, S. ;

Adamova, D. ;

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. ;

Aziz, S. .

PHYSICAL REVIEW LETTERS, 2020, 125 (01)

[3]

Arsen I., 2005, NUCL PHYS A, V757, P1, DOI DOI 10.1016/J.NUCLPHYSA.2005.02.130

[4] Angular momentum conservation in heavy ion collisions at very high energy [J].

Becattini, F. ;

Piccinini, F. ;

Rizzo, J. .

PHYSICAL REVIEW C, 2008, 77 (02)

[5] NJL-model analysis of dense quark matter [J].

Buballa, M .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2005, 407 (4-6) :205-376

[6]

Chen HL, 2021, LECT NOTES PHYS, V987, P349, DOI 10.1007/978-3-030-71427-7_11

[7] Analogy between rotation and density for Dirac fermions in a magnetic field [J].

Chen, Hao-Lei ;

Fukushima, Kenji ;

Huang, Xu-Guang ;

Mameda, Kazuya .

PHYSICAL REVIEW D, 2016, 93 (10)

[8] Charmonium transition in electromagnetic and rotational fields [J].

Chen, Shile ;

Zhao, Jiaxing ;

Zhuang, Pengfei .

PHYSICAL REVIEW C, 2021, 103 (03)

[9] Inhomogeneous chiral condensation under rotation in the holographic QCD [J].

Chen, Yidian ;

Li, Danning ;

Huang, Mei .

PHYSICAL REVIEW D, 2022, 106 (10)

[10] Inhomogeneous confining-deconfining phases in rotating plasmas [J].

Chernodub, M. N. .

PHYSICAL REVIEW D, 2021, 103 (05)

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