Published August 2017 | Version v1
Journal article Metadata-only

S-wave resonance contributions to B(s)0 → ηc(2S)π+π- in the perturbative QCD factorization approach

Creators

  • 1. Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing (China)
  • 2. Institute of Theoretical Physics, Shanxi University, Taiyuan (China)
  • 3. Jiangsu Key Laboratory for Numerical Simulation of Large Scale Complex Systems, Nanjing Normal University, Nanjing (China)

Description

By employing the perturbative QCD (PQCD) factorization approach, we study the quasi-two-body B(s)0 → ηc(2S)π+π- decays, where the pion pair comes from the S-wave resonance f0(X). The Breit-Wigner formula for the f0(500) and f0(1500) resonances and the Flatt'e model for the f0(980) resonance are adopted to parameterize the time-like scalar form factors in the two-pion distribution amplitudes. As a comparison, Bugg's model is also used for the wide f0(500) in this work. For decay rates, we found the following PQCD predictions: (a)B(Bs0 → ηc(2S)f0(X)[π+π-]s) = 2.67-1.08+1.78 × 10-5 when the contributions from f0(980) and f0(1500) are all taken into account; (b)B(B0 → ηc(2S)f0(500)[π+π-]s) = 1.40-0.56+0.92 × 10-6 in the Breit-Wigner model and 1.53-0.61+0.97 × 10-6 in Bugg's model. (authors)

Additional details

Identifiers

DOI
10.1088/1674-1137/41/8/083105;

Publishing Information

Journal Title
Chinese Physics. C, High Energy Physics and Nuclear Physics
Journal Volume
41
Journal Issue
8
Journal Page Range
[6 p.]
ISSN
1674-1137

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
52030485
Subject category
S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Descriptors DEI
AMPLITUDES; B NEUTRAL MESONS; BREIT-WIGNER FORMULA; DISTRIBUTION; F0-980 MESONS; FACTORIZATION; FORECASTING; FORM FACTORS; PARTICLE DECAY; PIONS; QUANTUM CHROMODYNAMICS; RESONANCE; S WAVES; SCALARS; TWO-BODY PROBLEM
Descriptors DEC
B MESONS; BEAUTY MESONS; BEAUTY PARTICLES; BOSONS; DECAY; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; FIELD THEORIES; HADRONS; MANY-BODY PROBLEM; MESONS; PARTIAL WAVES; PARTICLE PROPERTIES; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; SCALAR MESONS

Optional Information

Notes
2 figs., 76 refs.; http://dx.doi.org/10.1088/1674-1137/41/8/083105