S-wave resonance contributions to the ... arrow right J/[psi][pi] super(+)[pi] super(-) and Bs arrow right [pi] super(+)[pi] super(-) mu super(+) mu super(-) decays

We study S-wave resonance contributions to the (ProQuest: Formulae and/or non-USASCII text omitted) J/[psi][pi] super(+)[pi] super(-) and Bs arrow right [pi] super(+)[pi] super(-) mu super(+) mu super(-) decays in the perturbative QCD framework by introducing two-hadron distribution amplitudes for f...

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Bibliographic Details
Published in:Physical review. D, Particles, fields, gravitation, and cosmology Particles, fields, gravitation, and cosmology, 2015-05, Vol.91 (9)
Main Authors: Wang, Wen-Fei, Li, Hsiang-nan, Wang, Wei, Lu, Cai-Dian
Format: Article
Language:English
Subjects:
Amplitudes
Channels
Cosmology
Decay
Phases
Scalars
Skewed distributions
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Summary:We study S-wave resonance contributions to the (ProQuest: Formulae and/or non-USASCII text omitted) J/[psi][pi] super(+)[pi] super(-) and Bs arrow right [pi] super(+)[pi] super(-) mu super(+) mu super(-) decays in the perturbative QCD framework by introducing two-hadron distribution amplitudes for final states. The Breit-Wigner formula for the [functionof] sub(0)(500), [functionof] sub(0)(1500), and [functionof] sub(0)(1790) resonances and the Flatte model for the [functionof] sub(0)(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.
ISSN:1550-7998
1550-2368