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《中国物理C》（英文）编辑部
2024年10月30日
Chinese Physics C> 2015, Vol. 39> Issue(6) : 063102 DOI: 10.1088/1674-1137/39/6/063102

Investigations on the charmless decays of Y(4260)

  • Apart from the charmful decay channels of Y(4260), the charmless decay channels of Y(4260) also provide us a good platform to study the nature and the decay mechanism of Y(4260). In this paper, we propose to probe the structure of Y(4260) through the charmless decays Y(4260)→VP via intermediate D1D+c.c. meson loops, where V and P stand for light vector and pseudoscalar mesons, respectively. Under the molecule ansatz of Y(4260), the predicted total branching ratio BRVP for all Y(4260)→VP processes are about (0.34-0.23+0.23)% to (0.75-0.52+0.72)% with the cutoff parameter α=2-3. Numerical results show that the intermediate m D1D+c.c. meson loops may be a possible transition mechanism in the Y(4260)→VP decays. These predicted branching ratios are the same order to that of Y(4260)→Zc+(3900)π-, which may be an evidence of D1D molecule and can be examined by the forthcoming BESⅢ data in the near future.
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LI Gang, AN Chun-Sheng, LI Peng-Yu, LIU Di, ZHANG Xiao and ZHOU Zhu. Investigations on the charmless decays of Y(4260)[J]. Chinese Physics C, 2015, 39(6): 063102. doi: 10.1088/1674-1137/39/6/063102
LI Gang, AN Chun-Sheng, LI Peng-Yu, LIU Di, ZHANG Xiao and ZHOU Zhu. Investigations on the charmless decays of Y(4260)[J]. Chinese Physics C, 2015, 39(6): 063102.  doi: 10.1088/1674-1137/39/6/063102 shu
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Received: 2014-10-11
Revised: 2014-11-17
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Investigations on the charmless decays of Y(4260)

    Corresponding author: LI Gang,
    Corresponding author: AN Chun-Sheng,
  • Received Date: 2014-10-11
  • Accepted Date: 2014-11-17
  • Available Online: 2015-06-05

Abstract: Apart from the charmful decay channels of Y(4260), the charmless decay channels of Y(4260) also provide us a good platform to study the nature and the decay mechanism of Y(4260). In this paper, we propose to probe the structure of Y(4260) through the charmless decays Y(4260)→VP via intermediate D1D+c.c. meson loops, where V and P stand for light vector and pseudoscalar mesons, respectively. Under the molecule ansatz of Y(4260), the predicted total branching ratio BRVP for all Y(4260)→VP processes are about (0.34-0.23+0.23)% to (0.75-0.52+0.72)% with the cutoff parameter α=2-3. Numerical results show that the intermediate m D1D+c.c. meson loops may be a possible transition mechanism in the Y(4260)→VP decays. These predicted branching ratios are the same order to that of Y(4260)→Zc+(3900)π-, which may be an evidence of D1D molecule and can be examined by the forthcoming BESⅢ data in the near future.

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