Is the pentaquark doublet a hadronic molecule?

被引：0
|
作者：
A. Mironov
A. Morozov
机构：
[1] Lebedev Physical Institute,Kharkevich Institute for Information Transmission Problems
[2] Alikhanov Institute for Theoretical and Experimental Physics,undefined
[3] National Research Nuclear University MEPhI,undefined
[4] Russian Academy of Sciences,undefined
来源：
JETP Letters | 2015年 / 102卷
关键词：
JETP Letter; Heavy Quark; Color Singlet; Doublet Structure; Multiquark State;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A recently announced discovery by LHCb of a doublet of overlapping pentaquark resonances poses a question of what can be the origin of this doublet structure. We attract attention to the fact that such degeneracy could naturally arise if constituent “baryon” and “meson” were in the colored, rather than colorless states. This is an appealing possibility, also because in such a case the pentaquark state would be no less “elementary” than the other hadrons, and would provide a chance for essentially new non-Abelian chemistry.
引用
收藏
页码：271 / 273
页数：2
相关论文
共 50 条
  • [41] QUARTET-DOUBLET INTERACTIONS OBSERVED IN THE EMISSION-SPECTRUM OF THE NO MOLECULE
    MIESCHER, E
    JOURNAL OF CHEMICAL PHYSICS, 1980, 73 (07): : 3088 - 3094
  • [42] Enter the pentaquark
    不详
    SCIENCE, 2015, 349 (6245) : 220 - 220
  • [43] Inevitable pentaquark
    Diakonov, Dmitri
    PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT, 2007, (168): : 1 - 9
  • [44] The isotensor pentaquark
    Page, PR
    HADRON SPECTROSCOPY, 2004, 717 : 436 - 440
  • [45] MODIFICATIONS OF DOUBLET ENERGY FORMULAE OF A DIATOMIC MOLECULE NECESSITATED BY ROTATIONAL STRETCHING
    VESETH, L
    JOURNAL OF PHYSICS PART B ATOMIC AND MOLECULAR PHYSICS, 1970, 3 (12): : 1677 - &
  • [46] Y(4260): Hadronic molecule versus hadro-charmonium interpretation
    Wang, Qian
    Cleven, Martin
    Guo, Feng-Kun
    Hanhart, Christoph
    Meissner, Ulf-G.
    Wu, Xiao-Gang
    Zhao, Qiang
    PHYSICAL REVIEW D, 2014, 89 (03):
  • [47] X(3872) as a hadronic molecule and its decays to charmonium states and pions
    Dong, Yubing
    Faessler, Amand
    Gutsche, Thomas
    Kovalenko, Sergey
    Lyubovitskij, Valery E.
    PHYSICAL REVIEW D, 2009, 79 (09):
  • [48] 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
  • [49] Possible B(*) (K)over-bar hadronic molecule state
    Xiao, Cheng-Jian
    Chen, Dian-Yong
    EUROPEAN PHYSICAL JOURNAL A, 2017, 53 (06):
  • [50] Pentaquark searches
    Hicks, K.
    PROCEEDINGS OF THE IX INTERNATIONAL CONFERENCE ON HYPERNUCLEAR AND STRANGE PARTICLE PHYSICS, 2007, : 365 - 370
12345