English

Study of the ${\Upsilon}(1S)$ ${\to}$ $B_{c}D_{s}^{\ast}$ decay with pQCD approach

High Energy Physics - Phenomenology 2016-04-26 v1
Authors: Junfeng Sun , Yueling Yang , Qingxia Li , Gongru Lu , Jinshu Huang , Qin Chang
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Abstract

The Υ(1S){\Upsilon}(1S) →{\to} BcDs∗B_{c}D_{s}^{\ast} weak decay is studied with the perturbative QCD approach firstly. It is found that (1) main contributions to branching ratio come from the longitudinal and parallel helicity amplitudes, (2) branching ratio, longitudinal and parallel polarization fractions are sensitive to the wave functions of the Υ(1S){\Upsilon}(1S) meson, (3) branching ratio for the Υ(1S){\Upsilon}(1S) →{\to} BcDs∗B_{c}D_{s}^{\ast} decay can reach up to 10−910^{-9}, which might be promisingly measured by the future experiments.

Keywords

Υ(1S) decay perturbative QCD branching ratio helicity amplitude wave function weak decay

Cite

@article{arxiv.1604.07040,
  title  = {Study of the ${\Upsilon}(1S)$ ${\to}$ $B_{c}D_{s}^{\ast}$ decay with pQCD approach},
  author = {Junfeng Sun and Yueling Yang and Qingxia Li and Gongru Lu and Jinshu Huang and Qin Chang},
  journal= {arXiv preprint arXiv:1604.07040},
  year   = {2016}
}

Comments

23 pages, 3 figures, revtex4. arXiv admin note: text overlap with arXiv:1601.00259

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