The narrow pentaquark

被引：0
|
作者：
Diakonov, Dmitri [1 ]
机构：
[1] Petersburg Nucl Phys Inst, St Petersburg 188300, Russia
来源：
Quark Confinement and the Hadron Spectrum VII | 2007年 / 892卷
关键词：
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The experimental status of the pentaquark searches is briefly reviewed. Recent null results by the CLAS collaboration are commented, and new strong evidence of a very narrow Theta(+) resonance by the DIANA collaboration is presented. On the theory side, I revisit the argument against the existence of the pentaquark - that of Callan and Klebanov - and show that actually a strong resonance is predicted in that approach, however its width is grossly overestimated. A recent calculation gives 2 MeV for the pentaquark width, and this number is probably still an upper bound [1].
引用
收藏
页码：258 / 261
页数：4
相关论文
共 50 条
  • [1] A narrow "peanut" pentaquark
    Melikhov, D
    Quark Confinement and the Hadron Spectrum VI, 2005, 756 : 201 - 203
  • [2] Isospin mixing of narrow pentaquark states
    Rossi, GC
    Veneziano, G
    PHYSICS LETTERS B, 2004, 597 (3-4) : 338 - 345
  • [3] Narrow width of pentaquark baryons in QCD string theory
    Suganuma, H
    Ichie, H
    Okiharu, F
    Takahashi, TT
    PENTAQUARK 04, PROCEEDINGS, 2005, : 414 - 421
  • [4] Decay modes of ideally mixed narrow pentaquark states
    Lee, SH
    Kim, H
    Oh, Y
    JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2005, 46 (04) : 774 - 780
  • [5] Study of narrow baryonic pentaquark candidates with the zeus detector at hera
    Karshon, U
    PENTAQUARK 04, PROCEEDINGS, 2005, : 75 - 82
  • [6] Narrow pentaquark states in a quark model with antisymmetrized molecular dynamics
    Kanada-Enyo, Y
    Morimatsu, O
    Nishikawa, T
    PENTAQUARK 04, PROCEEDINGS, 2005, : 239 - 246
  • [7] Pentaquark symmetries, selection rules and another potentially narrow state
    Close, FE
    Dudek, JJ
    PHYSICS LETTERS B, 2004, 586 (1-2) : 75 - 82
  • [8] Observation of a Narrow Pentaquark State, Pc(4312)+, and of the Two-Peak Structure of the Pc(4450)+
    Aaij, R.
    Beteta, C. Abellan
    Adeva, B.
    Adinolfi, M.
    Aidala, C. A.
    Ajaltouni, Z.
    Akar, S.
    Albicocco, P.
    Albrecht, J.
    Alessio, F.
    Alexander, M.
    Alfonso Albero, A.
    Alkhazov, G.
    Cartelle, P. Alvarez
    Alves, A. A., Jr.
    Amato, S.
    Amhis, Y.
    Amhis, Y.
    An, L.
    Anderlini, L.
    Andreassi, G.
    Andreotti, M.
    Andrews, J. E.
    Archilli, F.
    d'Argent, P.
    Romeu, J. Arnau
    Artamonov, A.
    Artuso, M.
    Arzymatov, K.
    Aslanides, E.
    Atzeni, M.
    Audurier, B.
    Bachmann, S.
    Back, J. J.
    Baker, S.
    Balagura, V.
    Baldini, W.
    Baranov, A.
    Barlow, R. J.
    Barsuk, S.
    Barter, W.
    Bartolini, M.
    Baryshnikov, F.
    Batozskaya, V.
    Batsukh, B.
    Battig, A.
    Battista, V.
    Bay, A.
    Bedeschi, F.
    Bediaga, I.
    PHYSICAL REVIEW LETTERS, 2019, 122 (22)
  • [9] The narrow Θ5 pentaquark as the first non-planar hadron with the diamond structure and negative parity
    Song, XC
    Zhu, SL
    MODERN PHYSICS LETTERS A, 2004, 19 (37) : 2791 - 2797
  • [10] On the conundrum of the pentaquark
    Hicks, Kenneth H.
    EUROPEAN PHYSICAL JOURNAL H, 2012, 37 (01): : 1 - 31
12345