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

被引：6
|
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
收藏
页数：13
相关论文
共 50 条
  • [31] Medium Modification of Vector Mesons
    Djalali, Chaden
    Paolone, Michael
    Weygand, Dennis
    Wood, Michael H.
    Nasseripour, Rakhsha
    35TH INTERNATIONAL CONFERENCE OF HIGH ENERGY PHYSICS (ICHEP 2010), 2010,
  • [32] RELATIVISTIC QUARK POTENTIAL FOR THE VECTOR-MESONS
    CRATER, H
    VANALSTINE, P
    BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1981, 26 (04): : 575 - 575
  • [33] Vector and axial vector mesons in a nonlocal chiral quark model
    Izzo Villafane, M. F.
    Gomez Dumm, D.
    Scoccola, N. N.
    PHYSICAL REVIEW D, 2016, 94 (05)
  • [34] Spin alignment of vector mesons in unpolarized hadron-hadron collisions at high energies
    Xu, QH
    Liang, ZT
    PHYSICAL REVIEW D, 2003, 68 (03)
  • [35] Quark fragmentation into vector and pseudoscalar mesons at LEP
    Anselmino, M
    Bertini, M
    Burgard, C
    Caruso, F
    Quintairos, P
    PHYSICS LETTERS B, 1998, 427 (3-4) : 356 - 360
  • [36] Production properties of K*(892)±:: vector mesons and their spin alignment as measured in the NOMAD experiment
    Chukanov, A.
    Naumov, D.
    Popov, B.
    Astier, P.
    Autiero, D.
    Baldisseri, A.
    Baldo-Ceolin, M.
    Banner, M.
    Bassompierre, G.
    Benslama, K.
    Besson, N.
    Bird, I.
    Blumenfeld, B.
    Bobisut, F.
    Bouchez, J.
    Boyd, S.
    Bueno, A.
    Bunyatov, S.
    Camilleri, L.
    Cardini, A.
    Cattaneo, P. W.
    Cavasinnil, V.
    Cervera-Villanueva, A.
    Challis, R.
    Collazuol, G.
    Conforto, G.
    Conta, C.
    Contalbrigo, M.
    Cousins, R.
    Daniels, D.
    Degaudenzi, H.
    Del Pretel, T.
    De Santo, A.
    Dignan, T.
    Di Lella, L.
    do Couto e Silva, E.
    Dumarchez, J.
    Ellis, M.
    Feldman, G. J.
    Ferrari, R.
    Ferrere, D.
    Flaminio, V.
    Fraternali, M.
    Gaillard, J. -M.
    Gangler, E.
    Geiser, A.
    Geppert, D.
    Gibin, D.
    Gninenko, S.
    Godleyl, A.
    EUROPEAN PHYSICAL JOURNAL C, 2006, 46 (01): : 69 - 79
  • [37] Vector mesons in the extended chiral quark model
    Andrianov, AA
    Espriu, D
    JOURNAL OF HIGH ENERGY PHYSICS, 1999, (10):
  • [38] RELATIVISTIC QUARK POTENTIAL FOR THE VECTOR-MESONS
    CRATER, H
    VANALSTINE, P
    PHYSICS LETTERS B, 1981, 100 (02) : 166 - 172
  • [39] Vector and axial-vector mesons in Quasilocal Quark Models
    V.A. Andrianov
    S.S. Afonin
    The European Physical Journal A - Hadrons and Nuclei, 2003, 17 : 111 - 118
  • [40] Vector and axial-vector mesons in Quasilocal Quark Models
    Andrianov, VA
    Afonin, SS
    EUROPEAN PHYSICAL JOURNAL A, 2003, 17 (01): : 111 - 118
12345