Advanced Search
Volume 35 Issue 1
Turn off MathJax
Article Contents
Abstract
References
LÜ Qifang, DONG Yubing, LIU Xiang, MATSUKI Takayuki. Puzzle of the Λc Spectrum[J]. Nuclear Physics Review, 2018, 35(1): 1-4. DOI: 10.11804/NuclPhysRev.35.01.001
Citation: LÜ Qifang, DONG Yubing, LIU Xiang, MATSUKI Takayuki. Puzzle of the Λc Spectrum[J]. Nuclear Physics Review, 2018, 35(1): 1-4. DOI: 10.11804/NuclPhysRev.35.01.001
shu

Puzzle of the Λc Spectrum

  • 1.

    Department of Physics, Hunan Normal University, Changsha 410081, China;

  • 2.

    Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China;

  • 3.

    Theoretical Physics Center for Science Facilities(TPCSF), Chinese Academy of Sciences, Beijing 100049, China;

  • 4.

    School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China;

  • 5.

    Research Center for Hadron and CSR Physics, Lanzhou University & Institute of Modern Physics of CAS, Lanzhou 730000, China;

  • 6.

    Tokyo Kasei University, 1-18-1 Kaga, Itabashi, Tokyo 173-8602, Japan;

  • 7.

    Theoretical Research Division, Nishina Center, RIKEN, Wako, Saitama 351-0198, Japan

Funds: National Natural Science Foundation of China (11475192, 11305003, 11222547, 11175073, 11447604, 11705056, U1204115)
More Information
  • Corresponding author:

    LIU Xiang

  • Received Date: October 26, 2017
  • Revised Date: November 21, 2017
    Graphical Abstract
    • Abstract
  • There is a puzzle in the Λc+ family, i.e., one member with JP=3/2+ is missing in a L=2 multiplet which the heavy quark effective theory predicts, and JP's of Λc(2765)+ and Λc(2940)+ are unknown. Using a light diquark picture to calculate baryon masses, we study possible assignments of two Λc's with unknown JP and the missing Λc+ with 3/2+ for L=2, and we find the most probable possibility that the peak corresponding to Λc(2880)+ actually includes a missing member with spin 3/2+ for L=2 and that quantum numbers of Λc(2765)+ and Λc(2940)+ are 2S(1/2+) and 2P (1/2-), respectively.
    • FullText(HTML)
    • References (18)
  • [1]
    MATSUKI T, LÜ Q F, DONG Y B, et al. Phys Lett B, 2016, 758:274.
    [2]
    AFONIN S S. Phys Rev C, 2007, 76, 015202.
    [3]
    AFONIN S S, PUSENKOV I V. Mod Phys Lett A, 2014, 29:1450193.
    [4]
    OLIVE K A[Particle Data Group Collaboration]. Chin Phys C, 2014, 38:090001.
    [5]
    DONG Y B, FAESSLER A, GUTSCHE T, et al. Phys Rev D, 2010, 81:014006.
    [6]
    DONG Y B, FAESSLER A, GUTSCHE T,et al. Phys Rev D, 2010, 82:034035.
    [7]
    XIE J J, DONG Y B, CAO X. Phys Rev D, 2015, 92:034029.
    [8]
    CAPSTICK S, ISGUR N. Phys Rev D, 1986, 34:2809.
    [9]
    GODFREY S, ISGUR N. Phys Rev D, 1985, 32:189.
    [10]
    EBERT D, FAUSTOV R N, GALKIN V O. Phys Rev D, 2011, 84:014025.
    [11]
    CHEN B, WEI K W, LIU X, MATSUKI T. arXiv:1609.07967[hep-ph].
    [12]
    ROBERTS W, PERVIN M. Int J Mod Phys A, 2008, 23:2817.
    [13]
    ABE K[Belle Collaboration]. Phys Rev Lett, 2007, 98:262001.
    [14]
    AUBERT B[BaBar Collaboration]. Phys Rev Lett, 2007, 98:012001.
    [15]
    LIU X. Chin Sci Bull, 2014, 59:3815.
    [16]
    CHEN H X, CHEN W, LIU X, et al. Phys Rept, 2016639:1.
    [17]
    LEBED R F, MITCHELL R E, SWANSON E S. arXiv:1610.04528[hep-ph].
    [18]
    EICHTEN E J, HILL C T, QUIGG C. Phys Rev Lett 1993, 71:4116.
    • Related Articles

Catalog

    Get Citation
    PDF
    XML

    Article Metrics

    Article views (1451) PDF downloads (151) Cited by()
    Related

    Copyright by 《Nuclear Physics Review》Editorial Office

    Address: 509 Nanchang Road, Lanzhou PostCode: 730000 Tel: 0752-2055719(惠州办公室); 0931-4969374, 4969370, 4969371(兰州办公室) Fax: 0931-8272100 E-mail:npr@impcas.ac.cn, jcwang@impcas.ac.cn

    陇ICP备2023003351号-2  甘公网安备 62010202000723号

    Supported by: Beijing Renhe Information Technology Co., Ltd.  Baidu Analytics

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return