$S$-wave resonance contributions to the $B^0_{(s)}\to J/\psi\pi^+\pi^-$ and $B_s\to\pi^+\pi^-\mu^+\mu^-$ decays - INSPIRE

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$S$ -wave resonance contributions to the $B^0_{(s)}\to J/\psi\pi^+\pi^-$ and $B_s\to\pi^+\pi^-\mu^+\mu^-$ decays

Wen-Fei Wang
(
- Beijing, Inst. High Energy Phys.
)
,
Hsiang-nan Li
(
- Taiwan, Inst. Phys.
)
,
Wei Wang
(
- Shanghai Jiao Tong U. and
- Shanghai Jiaotong U.
)
,
Cai-Dian Lü
(
- Beijing, Inst. High Energy Phys. and
- Princeton U.
)

Feb 19, 2015

12 pages

Published in:

Phys.Rev.D 91 (2015) 9, 094024

Published: May 21, 2015

e-Print:

1502.05483 [hep-ph]

DOI:

10.1103/PhysRevD.91.094024

View in:

ADS Abstract Service

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Abstract: (APS)

We study S-wave resonance contributions to the B(s)0→J/ψπ+π- and Bs→π+π-μ+μ- decays in the perturbative QCD framework by introducing two-hadron distribution amplitudes for final states. The Breit–Wigner formula for the f0(500), f0(1500), and f0(1790) resonances and the Flatté model for the f0(980) resonance are adopted to parametrize the timelike scalar form factors in the two-pion distribution amplitudes, which include both resonant and nonresonant contributions. The resultant branching fraction and differential branching fraction in the pion-pair invariant mass for each resonance channel are consistent with experimental data. The determined S-wave two-pion distribution amplitudes, containing the information of both resonant and nonresonant rescattering phases, can be employed to predict direct CP asymmetries of other three-body hadronic B meson decays in various localized regions of two-pion phase space.

Note:

13 pages, 3 figures

13.20.He
13.25.Hw
13.30.Eg
quantum chromodynamics: perturbation theory
B0: semileptonic decay
B0: hadronic decay
B/s0: semileptonic decay
B/s0: hadronic decay
form factor: scalar
hadron: distribution amplitude

References(62)

Figures(5)

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