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.
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  • [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
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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
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Received: 2018-03-22
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    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)

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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.

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