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
  • [1] X(3872) as a charmonium-molecule mixture: mass and decay width
    Matheus, R. D.
    Navarra, F. S.
    Nielsen, M.
    Zanetti, C. M.
    XI HADRON PHYSICS, 2010, 1296 : 225 - 230
  • [2] Radiative decay of the X(3872) as a mixed molecule-charmonium state in effective field theory
    Cincioglu, E.
    Ozpineci, A.
    PHYSICS LETTERS B, 2019, 797
  • [3] Radiative decay of the X(3872) as a mixed molecule-charmonium state in QCD sum rules
    Nielsen, M.
    Zanetti, C. M.
    PHYSICAL REVIEW D, 2010, 82 (11):
  • [4] X(3872): charmonium or molecule?
    Nefediev, A. V.
    IX INTERNATIONAL CONFERENCE ON QUARK CONFINEMENT AND THE HADRON SPECTRUM (QCHS IX), 2011, 1343 : 394 - 396
  • [5] X(3872) as a hybrid state of charmonium and the hadronic molecule
    Takizawa, Makoto
    Takeuchi, Sachiko
    PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, 2013, 2013 (09):
  • [6] Radiative X(3872) Decays in Charmonium-Molecule Hybrid Model
    Makoto Takizawa
    Sachiko Takeuchi
    Kiyotaka Shimizu
    Few-Body Systems, 2014, 55 : 779 - 782
  • [7] Radiative X(3872) Decays in Charmonium-Molecule Hybrid Model
    Takizawa, Makoto
    Takeuchi, Sachiko
    Shimizu, Kiyotaka
    FEW-BODY SYSTEMS, 2014, 55 (8-10) : 779 - 782
  • [8] X(3872) boson: Molecule or charmonium
    Suzuki, M
    PHYSICAL REVIEW D, 2005, 72 (11):
  • [9] Radiative decay Y(4260) → X(3872) + γ involving hadronic molecular and charmonium components
    Dong, Yubing
    Faessler, Amand
    Gutsche, Thomas
    Lyubovitskij, Valery E.
    PHYSICAL REVIEW D, 2014, 90 (07):
  • [10] QCD sum rules for the production of the X(3872) as a mixed molecule-charmonium state in B meson decay
    Zanetti, C. M.
    Nielsen, M.
    Matheus, R. D.
    PHYSICS LETTERS B, 2011, 702 (05) : 359 - 363
12345