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Title: Study of the pure annihilation B{sub c}{yields}A{sub 2}A{sub 3} decays

Abstract

In this work, we calculate the CP-averaged branching ratios and the polarization fractions of the charmless hadronic B{sub c}{yields}A{sub 2}A{sub 3} decays within the framework of perturbative QCD (pQCD) approach, where A is either a light {sup 3}P{sub 1} or {sup 1}P{sub 1} axial-vector meson. These 32 decay modes can occur through the annihilation topology only. Based on the perturbative calculations and phenomenological analysis, we find the following results: (a) the branching ratios of the considered 32 B{sub c}{yields}A{sub 2}A{sub 3} decays are in the range of 10{sup -5} to 10{sup -8}; (b) B{sub c}{yields}a{sub 1}b{sub 1}, K{sub 1}{sup 0}K{sub 1}{sup +} and some other decays have sizable branching ratios and can be measured at the LHC experiments; (c) the branching ratios of B{sub c}{yields}A{sub 2}({sup 1}P{sub 1})A{sub 3}({sup 1}P{sub 1}) decays are generally much larger than those of B{sub c}{yields}A{sub 2}({sup 3}P{sub 1})A{sub 3}({sup 3}P{sub 1}) decays with a factor around (10{approx}100); (d) the branching ratios of B{sub c}{yields}K{sub 1}{sup 0}K{sub 1}{sup +} decays are sensitive to the value of {theta}{sub K}, which will be tested by the running LHC and forthcoming SuperB experiments; (e) the large longitudinal polarization contributions govern most considered decays and play the dominant role.

Authors:
 [1];  [2];  [3]
  1. Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing, Jiangsu 210046 (China)
  2. (Italy)
  3. Department of Physics and Institute of Theoretical Physics, Xuzhou Normal University, Xuzhou, Jiangsu 221116 (China)
Publication Date:
OSTI Identifier:
21607791
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 84; Journal Issue: 7; Other Information: DOI: 10.1103/PhysRevD.84.074033; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ANNIHILATION; AXIAL VECTOR MESONS; B C MESONS; BRANCHING RATIO; CERN LHC; COMPUTERIZED SIMULATION; CP INVARIANCE; PARTICLE DECAY; PERTURBATION THEORY; POLARIZATION; QUANTUM CHROMODYNAMICS; TOPOLOGY; ACCELERATORS; BEAUTY MESONS; BEAUTY PARTICLES; BOSONS; CHARM PARTICLES; CHARMED MESONS; CYCLIC ACCELERATORS; DECAY; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; FIELD THEORIES; HADRONS; INTERACTIONS; INVARIANCE PRINCIPLES; MATHEMATICS; MESONS; PARTICLE INTERACTIONS; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; SIMULATION; STORAGE RINGS; SYNCHROTRONS

Citation Formats

Xiao Zhenjun, High Energy Section, ICTP, Strada Costiera 11, 34014 Trieste, and Liu Xin. Study of the pure annihilation B{sub c}{yields}A{sub 2}A{sub 3} decays. United States: N. p., 2011. Web. doi:10.1103/PHYSREVD.84.074033.
Xiao Zhenjun, High Energy Section, ICTP, Strada Costiera 11, 34014 Trieste, & Liu Xin. Study of the pure annihilation B{sub c}{yields}A{sub 2}A{sub 3} decays. United States. doi:10.1103/PHYSREVD.84.074033.
Xiao Zhenjun, High Energy Section, ICTP, Strada Costiera 11, 34014 Trieste, and Liu Xin. Sat . "Study of the pure annihilation B{sub c}{yields}A{sub 2}A{sub 3} decays". United States. doi:10.1103/PHYSREVD.84.074033.
@article{osti_21607791,
title = {Study of the pure annihilation B{sub c}{yields}A{sub 2}A{sub 3} decays},
author = {Xiao Zhenjun and High Energy Section, ICTP, Strada Costiera 11, 34014 Trieste and Liu Xin},
abstractNote = {In this work, we calculate the CP-averaged branching ratios and the polarization fractions of the charmless hadronic B{sub c}{yields}A{sub 2}A{sub 3} decays within the framework of perturbative QCD (pQCD) approach, where A is either a light {sup 3}P{sub 1} or {sup 1}P{sub 1} axial-vector meson. These 32 decay modes can occur through the annihilation topology only. Based on the perturbative calculations and phenomenological analysis, we find the following results: (a) the branching ratios of the considered 32 B{sub c}{yields}A{sub 2}A{sub 3} decays are in the range of 10{sup -5} to 10{sup -8}; (b) B{sub c}{yields}a{sub 1}b{sub 1}, K{sub 1}{sup 0}K{sub 1}{sup +} and some other decays have sizable branching ratios and can be measured at the LHC experiments; (c) the branching ratios of B{sub c}{yields}A{sub 2}({sup 1}P{sub 1})A{sub 3}({sup 1}P{sub 1}) decays are generally much larger than those of B{sub c}{yields}A{sub 2}({sup 3}P{sub 1})A{sub 3}({sup 3}P{sub 1}) decays with a factor around (10{approx}100); (d) the branching ratios of B{sub c}{yields}K{sub 1}{sup 0}K{sub 1}{sup +} decays are sensitive to the value of {theta}{sub K}, which will be tested by the running LHC and forthcoming SuperB experiments; (e) the large longitudinal polarization contributions govern most considered decays and play the dominant role.},
doi = {10.1103/PHYSREVD.84.074033},
journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 7,
volume = 84,
place = {United States},
year = {2011},
month = {10}
}