# 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:

- Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing, Jiangsu 210046 (China)
- (Italy)
- 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}

}