X (3872) in QCD sum rules

被引：0
|
作者：
Matheus, R. D. [1 ]
机构：
[1] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, SP, Brazil
来源：
BRAZILIAN JOURNAL OF PHYSICS | 2007年 / 37卷 / 01期
关键词：
QCD sum rules; tetraquarks; axial vector mesons;
D O I：
10.1590/S0103-97332007000100020
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
QCD spectral sum rules is used to test the nature of the meson X(3872), assumed to be an exotic four-quark (ccqq) state with J(PC) = 1(++). For definiteness, the current proposed recently by Maiani ct al [1] is used, at leading order in alpha(s), considering the contributions of higher dimension condensates. The value M-X = (3.94 +/- 0.11) GeV is found which is compatible, within the errors, with the experimental candidate X(3872). The uncertainties of our estimates are mainly due to the one from the c quark mass.
引用
收藏
页码：63 / 66
页数：4
相关论文
共 50 条
  • [1] Understanding the X(3872) with QCD sum rules
    Matheus, R. D.
    Navarra, F. S.
    Nielsen, M.
    Zanetti, C. M.
    19TH INTERNATIONAL IUPAP CONFERENCE ON FEW-BODY PROBLEMS IN PHYSICS, 2009, 3
  • [2] X(3872) as tetraquarks in QCD sum rules
    Matheus, R. D.
    Nielsen, M.
    INTERNATIONAL JOURNAL OF MODERN PHYSICS E-NUCLEAR PHYSICS, 2007, 16 (09) : 2906 - 2909
  • [3] Decipher the width of the X(3872) via the QCD sum rules
    Wang, Zhi-Gang
    PHYSICAL REVIEW D, 2024, 109 (01)
  • [4] X(3872) → J/ψπ+π- and X(3872) → J/ψπ+π-π0 decay widths from QCD sum rules
    Navarra, F. S.
    Nielsen, M.
    PHYSICS LETTERS B, 2006, 639 (3-4) : 272 - 277
  • [5] Molecule-charmonium mixing for the X(3872) in QCD Sum Rules
    Zanetti, C. M.
    Matheus, R. D.
    Navarra, F. S.
    Nielsen, M.
    HADRON 2009, 2010, 1257 : 321 - 325
  • [6] QCD sum rules for the X(3872) as a mixed molecule-charmonium state
    Matheus, R. D.
    Navarra, F. S.
    Nielsen, M.
    Zanetti, C. M.
    PHYSICAL REVIEW D, 2009, 80 (05):
  • [7] X(3872) and its heavy quark spin symmetry partners in QCD sum rules
    Mutuk, Halil
    Sarac, Yasemin
    Gumus, Hasan
    Ozpineci, Altug
    EUROPEAN PHYSICAL JOURNAL C, 2018, 78 (11):
  • [8] X(3872) and its heavy quark spin symmetry partners in QCD sum rules
    Halil Mutuk
    Yasemin Saraç
    Hasan Gümüş
    Altuğ Özpineci
    The European Physical Journal C, 2018, 78
  • [9] 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):
  • [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