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  • Letter
  • Open Access

Discovery of Tcs¯0a(2900)0,++ implies new charmed-strange pentaquark system

Hong-Tao An1,2,*, Zhan-Wei Liu1,2,3,†, Fu-Sheng Yu3,4,5,‡, and Xiang Liu1,2,3,§

  • 1School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
  • 2Research Center for Hadron and CSR Physics, Lanzhou University and Institute of Modern Physics of CAS, Lanzhou 730000, China
  • 3Lanzhou Center for Theoretical Physics, and Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou 730000, China
  • 4School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
  • 5Center for High Energy Physics, Peking University, Beijing 100871, China

  • *anht14@lzu.edu.cn
  • †liuzhanwei@lzu.edu.cn
  • ‡yufsh@lzu.edu.cn
  • §xiangliu@lzu.edu.cn
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Phys. Rev. D 106, L111501 – Published 14 December, 2022

DOI: https://doi.org/10.1103/PhysRevD.106.L111501

Abstract

Inspired by the very recently discovered tetraquark states Tcs¯0a(2900)0,++ from the LHCb Collaboration, we predict the existence of a new charmed-strange pentaquark system, cs¯nnn, which is closely connected to cs¯nn¯ by exchanging n¯ into nn with n=u, d. Especially, it is suggested to experimentally search for the predicted new pentaquark system via the weak decays of B mesons or b baryons, with the support from the study of the mass spectrum and the decay properties. The predicted new pentaquark system must attract extensive attention from experimentalists and theorists when it constructs the “particle zoo 2.0” in the near future.

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Phys. Rev. D 106, L111501– Published 14 December, 2022
  • Received 14 July 2022
  • Accepted 28 November 2022
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