Holographic vector mesons in a hot and dense medium

被引：2
|
作者：
Giannuzzi, Floriana [1 ,2 ]
机构：
[1] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy
[2] Univ Bari, Dipartmento Fis, I-70126 Bari, Italy
来源：
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2013年 / 234卷
关键词：
AdS/QCD; vector mesons; spectral functions; finite temperature and density; RHO-MESON; CHIRAL RESTORATION; NUCLEAR-MATTER; COLLISIONS; DILEPTONS;
D O I：
10.1016/j.nuclphysbps.2012.12.038
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We investigate vector meson spectral functions at finite temperature and density through the soft wall model, a bottom-up holographic approach to QCD. We find narrow resonances at small values of the parameters, becoming broader as temperature and density increase. We study dissociation of such states, occurring when no peak can be distinguished in the spectral function. We also find a decreasing of the mass of vector mesons at increasing temperature and density. Finally, a discussion of these results is presented.
引用
收藏
页码：309 / 312
页数：4
相关论文
共 50 条
  • [31] Light vector mesons in the nuclear medium
    Wood, M. H.
    Nasseripour, R.
    Weygand, D. P.
    Djalali, C.
    Tur, C.
    Mosel, U.
    Muehlich, P.
    Adams, G.
    Amaryan, M. J.
    Ambrozewicz, P.
    Anghinolfi, M.
    Asryan, G.
    Avakian, H.
    Bagdasaryan, H.
    Baillie, N.
    Ball, J. P.
    Baltzell, N. A.
    Barrow, S.
    Battaglieri, M.
    Bedlinskiy, I.
    Bektasoglu, M.
    Bellis, M.
    Benmouna, N.
    Berman, B. L.
    Biselli, A. S.
    Blaszczyk, L.
    Bouchigny, S.
    Boiarinov, S.
    Bradford, R.
    Branford, D.
    Briscoe, W. J.
    Brooks, W. K.
    Burkert, V. D.
    Butuceanu, C.
    Calarco, J. R.
    Careccia, S. L.
    Carman, D. S.
    Carnahan, B.
    Casey, L.
    Chen, S.
    Cheng, L.
    Cole, P. L.
    Collins, P.
    Coltharp, P.
    Crabb, D.
    Crannell, H.
    Crede, V.
    Cummings, J. P.
    Dashyan, N.
    De Vita, R.
    PHYSICAL REVIEW C, 2008, 78 (01):
  • [32] Spectral change of σ and ω mesons in a dense nuclear medium
    Saito, K
    Tsushima, K
    Thomas, AW
    PHYSICS LETTERS B, 1999, 460 (1-2) : 17 - 23
  • [33] Structure of vector mesons in a holographic model with linear confinement
    Grigoryan, H. R.
    Radyushkin, A. V.
    PHYSICAL REVIEW D, 2007, 76 (09):
  • [34] Nucleons and vector mesons in a confining holographic QCD model
    Ballon-Bayona, Alfonso
    da Silva Junior, Adao S.
    PHYSICAL REVIEW D, 2024, 109 (09)
  • [35] Processes ππ→γγ and πγ→πγ in a hot and dense medium
    Kuraev, EA
    Volkov, MK
    PHYSICS OF ATOMIC NUCLEI, 1999, 62 (01) : 128 - 137
  • [36] DS Mesons in Asymmetric Hot and Dense Hadronic Matter
    Pathak, Divakar
    Mishra, Amruta
    ADVANCES IN HIGH ENERGY PHYSICS, 2015, 2015
  • [37] Tensor coupling and vector mesons in dense nuclear matter
    DuttMazumder, AK
    DuttaRoy, B
    Kundu, A
    De, T
    PHYSICAL REVIEW C, 1996, 53 (02): : 790 - 795
  • [38] Medium Modification of the Light Vector Mesons in Nuclei
    Nasseripour, R.
    Djalali, C.
    Wood, M.
    Weygand, D.
    SIXTH INTERNATIONAL CONFERENCE ON PERSPECTIVES IN HADRONIC PHYSICS, 2008, 1056 : 223 - +
  • [39] Medium modifications of light vector mesons in nuclei
    Djalali, Chaden
    Nasseripour, Rakhsha
    Weygand, Dennis
    Wood, Mike
    PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT, 2007, (168): : 511 - 518
  • [40] Mesons and diquarks in a dense quark medium with color superconductivity
    K. G. Klimenko
    D. Ebert
    Theoretical and Mathematical Physics, 2007, 150 : 82 - 96
12345