Radiative decay of the X(3872) state as a mixture of molecule and charmonium

被引：0
|
作者：
Zanetti, C. M. [1 ]
Nielsen, M. [1 ]
机构：
[1] Univ Sao Paulo, Inst Fis, BR-05389970 Sao Paulo, Brazil
来源：
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2010年 / 207-08卷
基金：
巴西圣保罗研究基金会;
关键词：
QCD SUM-RULES; TAU-DECAYS; RESONANCE; ALPHA(S); VACUUM; MASS;
D O I：
10.1016/j.nuclphysbps.2010.10.065
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 use QCD sum rules to calculate the width of the radiative decay of the meson X(3872), assumed to be a mixture between charmonium and exotic molecular [c (q) over bar][q (c) over bar] states with J(PC) = 1(++). We find that in a small range for the values of the mixing angle, 5(0) <= theta <= 13(0), we get the branching ratio Gamma(X -> J/psi gamma)/Gamma(X -> J/psi pi(+)pi(-)) = 0.19 +/- 0.13, which is in agreement, with the experimental value. This result is compatible with the analysis of the mass and decay width of the mode J/psi(n pi) performed in the same approach.
引用
收藏
页码：253 / 256
页数：4
相关论文
共 50 条
  • [21] X(3872) as a 1D2 charmonium state
    Kalashnikova, Yu. S.
    Nefediev, A. V.
    PHYSICAL REVIEW D, 2010, 82 (09):
  • [22] Search for a charmonium assignment for the X(3872)
    Olsen, SL
    INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 2005, 20 (2-3): : 240 - 249
  • [23] Electromagnetic decay of X(3872) as the 11D2(2-+) charmonium
    Wang, Tianhong
    Wang, Guo-Li
    Jiang, Yue
    Ju, Wan-Li
    JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2013, 40 (03)
  • [24] J/ψω decay channel of the X(3872) charm meson molecule
    Braaten, Eric
    Kang, Daekyoung
    PHYSICAL REVIEW D, 2013, 88 (01):
  • [25] X(3872), X(3940) as hybrid charmonium states?
    Petrov, AA
    FIRST MEETING OF THE APS TOPICAL GROUP ON HADRONIC PHYSICS, 2005, 9 : 83 - 86
  • [26] Strong and Radiative Decays of X(3872) as a Hadronic Molecule with a Negative Parity
    Harada, Masayasu
    Ma, Yong-Liang
    PROGRESS OF THEORETICAL PHYSICS, 2011, 126 (01): : 91 - 113
  • [27] Charmonium, Bc and X(3872) Transport at the LHC
    Wu, Biaogang
    Tang, Zhanduo
    He, Min
    Rapp, Ralf
    20TH INTERNATIONAL CONFERENCE ON STRANGENESS IN QUARK MATTER, SQM 2022, 2023, 276
  • [28] IS THE X(3872) A MOLECULE?
    Coito, S.
    Rupp, G.
    van Beveren, E.
    INTERNATIONAL MEETING EXCITED QCD, 2012, 5 (04): : 1015 - +
  • [29] Is X(3872) a molecule?
    Thomas, C. E.
    Close, F. E.
    PHYSICAL REVIEW D, 2008, 78 (03):
  • [30] Radiative decay of hadronic molecule state for quarks
    Chen, Xiaozhao
    Lu, Xiaofu
    Shi, Renbin
    Guo, Xiurong
    Wang, Qingbiao
    PHYSICAL REVIEW D, 2020, 101 (01)
12345