Nonleptonic charmless decays of BcTP,TV in the perturbative QCD approach

Xin Liu, Run-Hui Li, Zhi-Tian Zou, and Zhen-Jun Xiao
Phys. Rev. D 96, 013005 – Published 20 July 2017

Abstract

Two-body charmless hadronic Bc decays involving a light 1P32-tensor (T) meson are investigated for the first time within the framework of perturbative QCD (pQCD) at leading order, in which the other meson is the lightest pseudoscalar (P) or vector (V) state. The concerned processes can only occur through the pure weak annihilation topology in the standard model. We predict the CP-averaged branching ratios and polarization fractions of those considered decays in Cabibbo-Kobayashi-Maskawa (CKM) favored and suppressed modes. Phenomenologically, several modes—such as the BcK2*(1430)K and the CKM-favored BcTV—have large decay rates of 106, which are expected to be detected at Large Hadron Collider experiments in the near future. Moreover, all of the BcTV modes are governed by the longitudinal amplitudes in the pQCD calculations and the corresponding fractions vary around 78–98%. A confirmation of these results could prove the reliability of the pQCD approach used here and further shed some light on the annihilation decay mechanism.

  • Figure
  • Received 23 March 2017

DOI:https://doi.org/10.1103/PhysRevD.96.013005

© 2017 American Physical Society

Physics Subject Headings (PhySH)

Particles & Fields

Authors & Affiliations

Xin Liu*

  • School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China

Run-Hui Li

  • School of Physical Science and Technology, Inner Mongolia University, Hohhot 010021, China

Zhi-Tian Zou

  • Department of Physics, Yantai University, Yantai 264005, China

Zhen-Jun Xiao§

  • Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing 210023, China

  • *liuxin@jsnu.edu.cn
  • lirh@imu.edu.cn
  • zouzt@ytu.edu.cn
  • §xiaozhenjun@njnu.edu.cn

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Vol. 96, Iss. 1 — 1 July 2017

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