Phenomenological study on the decay widths of Υ(nS)→d*(2380)+X*

  • The decay widths of Υ(nS)→d*(2380)+X with n=1,2,3 are studied in a phenomenological way. With the help of crossing symmetry, the decay widths are obtained by investigating the imaginary part of the forward scattering amplitudes between d* and Υ(nS). The wave functions of m d* and deuteron obtained in previous studies are used for calculating the amplitude. The interaction between d* (d) and Υ is governed by the quark-meson interaction, where the coupling constant is determined by fitting the observed widths of Υ(nS)→d+X. The numerical results show that the decay widths of Υ(nS)→d*+X are about 2-10 times smaller than that of d+X. The calculated momentum of d* is in the range 0.3-0.8 GeV. Therefore, it is very likely that one can find d*(2380) in these semi-inclusive decay processes.
      PCAS:
  • 加载中
  • [1] M. Bashkanov et al, Phys. Rev. Lett., 102: 052301 (2009)
    [2] P. Adlarson et al, Phys. Rev. Lett., 106: 242302 (2011)
    [3] S. Keleta et al, Nucl. Phys. A, 825 71 (2009)
    [4] P. Adlarson et al (WASA-at-COSY Collaboration), Phys. Rev. C, 86: 032201 (2012)
    [5] P. Adlarson et al (WASA-at-COSY Collaboration), Phys. Rev. C, 88: 055208 (2013)
    [6] P. Adlarson et al (WASA-at-COSY Collaboration), Phys. Lett. B, 743: 325 (2015)
    [7] P. Adlarson et al (WASA-at-COSY Collaboration), Phys. Rev. C, 91: 015201 (2015)
    [8] P. Adlarson et al (WASA-at-COSY Collaboration), Phys. Rev. Lett., 112: 202301 (2014)
    [9] H. Clement, Progress in Particle and Nuclear Physics, 93: 195 (2017)
    [10] X. Q. Yuan, Z. Y. Zhang, Y. W. Yu, and P. N. Shen, Phys. Rev. C, 60: 045203 (1999)
    [11] M. Bashkanov, S. J. Brodsky, and H. Clement, Phys. Lett. B, 727: 438 (2013)
    [12] F. Huang, Z. Y. Zhang, P. N. Shen, and W. L. Wang, Chin. Phys. C, 39(7): 071001 (2015)
    [13] Y. B. Dong, P. N. Shen, F. Huang, and Z. Y. Zhang, Phys. Rev. C, 91(6): 064002 (2015)
    [14] Y. B. Dong, F. Huang, P. N. Shen, and Z. Y. Zhang, Phys. Rev. C, 94(1): 014003 (2016)
    [15] Y. B. Dong, F. Huang, P. N. Shen, and Z. Y. Zhang, Phys. Lett. B, 769: 223 (2017)
    [16] Y. B. Dong, F. Huang, P. N. Shen, and Z. Y. Zhang, Phys. Rev. D, 96: 094001 (2017)
    [17] A. Gal and H. Garcilazo, Phys. Rev. Lett., 111: 172301 (2013)
    [18] A. Gal and H. Garcilazo, Nucl. Phys. A, 928: 73 (2014)
    [19] C. Patrignani et al (Particle Data Group), Chin. Phys. C, 40(10): 100001 (2016)
    [20] E. Eichten, K. Gottfried, T. Kinoshita, K. D. Lane, and T. M. Yan, Phys. Rev. D, 21: 203 (1980)
    [21] Y. B. Ding, X. Q. Li, and P. N. Shen, Phys. Rev. D, 60: 074010 (1999)
    [22] Y. Lu, M. N. Anwar, and B. S. Zou, Phys. Rev. D, 94: 034021 (2016)
    [23] Y. Lu, M. N. Anwar, and B. S. Zou, Phys. Rev. D, 95: 034018 (2017)
    [24] F. Huang, P. N. Shen, Y. B. Dong, and Z. Y. Zhang, Sci. China Phys. Mech. Astron., 59(2): 622002 (2016)
    [25] D. M. Asner et al, Phys. Rev. D, 75: 012009 (2007)
    [26] J. P. Lees et al, Phys. Rev. D, 89: 111102 (R) (2014)
    [27] Private discussion with experimentalists
  • 加载中

Get Citation
Chao-Yi Lü, P. Wang, Y. B. Dong, P. N. Shen, Z. Y. Zhang and D. M. Li. Phenomenological study on the decay widths of Υ(nS)→d*(2380)+X*[J]. Chinese Physics C, 2018, 42(6): 064102. doi: 10.1088/1674-1137/42/6/064102
Chao-Yi Lü, P. Wang, Y. B. Dong, P. N. Shen, Z. Y. Zhang and D. M. Li. Phenomenological study on the decay widths of Υ(nS)→d*(2380)+X*[J]. Chinese Physics C, 2018, 42(6): 064102.  doi: 10.1088/1674-1137/42/6/064102 shu
Milestone
Received: 2018-03-22
Fund

    Supported by National Natural Sciences Foundations of China (11475186, 11475192, 11521505, 11565007), the Sino-German CRC 110 Symmetries and the Emergence of Structure in QCD project by NSFC (11621131001), the Key Research Program of Frontier Sciences, CAS, (Y7292610K1) and the IHEP Innovation Fund (Y4545190Y2)

Article Metric

Article Views(859)
PDF Downloads(15)
Cited by(0)
Policy on re-use
To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Email This Article

Title:
Email:

Phenomenological study on the decay widths of Υ(nS)→d*(2380)+X*

  • Department of Physics, Zhengzhou University, Zhengzhou, Henan 450001, China;
    2. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China;
    3. Theoretical Physics Center for Science Facilities, Chinese Academy of Sciences, Beijing 100049, China
Fund Project:  Supported by National Natural Sciences Foundations of China (11475186, 11475192, 11521505, 11565007), the Sino-German CRC 110 Symmetries and the Emergence of Structure in QCD project by NSFC (11621131001), the Key Research Program of Frontier Sciences, CAS, (Y7292610K1) and the IHEP Innovation Fund (Y4545190Y2)

Abstract: The decay widths of Υ(nS)→d*(2380)+X with n=1,2,3 are studied in a phenomenological way. With the help of crossing symmetry, the decay widths are obtained by investigating the imaginary part of the forward scattering amplitudes between d* and Υ(nS). The wave functions of m d* and deuteron obtained in previous studies are used for calculating the amplitude. The interaction between d* (d) and Υ is governed by the quark-meson interaction, where the coupling constant is determined by fitting the observed widths of Υ(nS)→d+X. The numerical results show that the decay widths of Υ(nS)→d*+X are about 2-10 times smaller than that of d+X. The calculated momentum of d* is in the range 0.3-0.8 GeV. Therefore, it is very likely that one can find d*(2380) in these semi-inclusive decay processes.

    HTML

Reference (27)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return