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Title: Light-front holographic distribution amplitudes of pseudoscalar mesons and their application to B -meson decays

Abstract

In this article the dynamical spin effects of the light-front holographic wave functions for light pseudoscalar mesons are studied. These improved wave functions are then confronted with a number of hadronic observables: the decay constants of π and K mesons, their ξ -moments, the pion-to-photon transition form factor, and the pure annihilation $$\bar{B}_s$$ → π+ π- and $$\bar{B}_d$$ → K+ K- decays. Taking fπ , fK , and their ratio fK / fπ as constraints, we perform a χ2 analysis for the holographic parameters, including the mass scale parameter $$\sqrtλ$$ and the effective quark masses, and find that the fitted results are quite consistent with the ones obtained from the light-quark hadronic Regge trajectories. In addition, we also show that the end point divergence appearing in the pure annihilation $$\bar{B}_s$$ → π+ π- and $$\bar{B}_d$$ → K+ K- decays can be controlled well by using these improved light-front holographic distribution amplitudes.

Authors:
 [1];  [2];  [3]
  1. Henan Normal Univ. (China). Inst. of Particle and Nuclear Physics; SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  3. Central China Normal University, Wuhan (China). Inst. of Particle Physics and Key Laboratory of Quark and Lepton Physics (MOE)
Publication Date:
Research Org.:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Org.:
USDOE; National Natural Science Foundation of China (NSFC)
OSTI Identifier:
1369422
Alternate Identifier(s):
OSTI ID: 1360879
Report Number(s):
SLAC-PUB-16849
Journal ID: ISSN 2470-0010; PRVDAQ
Grant/Contract Number:  
AC02-76SF00515; 11475055; 11675061; 11435003; 201317; 14HASTIT036; 201508410213
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 95; Journal Issue: 9; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Chang, Qin, Brodsky, Stanley J., and Li, Xin-Qiang. Light-front holographic distribution amplitudes of pseudoscalar mesons and their application to B -meson decays. United States: N. p., 2017. Web. doi:10.1103/PhysRevD.95.094025.
Chang, Qin, Brodsky, Stanley J., & Li, Xin-Qiang. Light-front holographic distribution amplitudes of pseudoscalar mesons and their application to B -meson decays. United States. https://doi.org/10.1103/PhysRevD.95.094025
Chang, Qin, Brodsky, Stanley J., and Li, Xin-Qiang. Tue . "Light-front holographic distribution amplitudes of pseudoscalar mesons and their application to B -meson decays". United States. https://doi.org/10.1103/PhysRevD.95.094025. https://www.osti.gov/servlets/purl/1369422.
@article{osti_1369422,
title = {Light-front holographic distribution amplitudes of pseudoscalar mesons and their application to B -meson decays},
author = {Chang, Qin and Brodsky, Stanley J. and Li, Xin-Qiang},
abstractNote = {In this article the dynamical spin effects of the light-front holographic wave functions for light pseudoscalar mesons are studied. These improved wave functions are then confronted with a number of hadronic observables: the decay constants of π and K mesons, their ξ -moments, the pion-to-photon transition form factor, and the pure annihilation $\bar{B}_s$ → π+ π- and $\bar{B}_d$ → K+ K- decays. Taking fπ , fK , and their ratio fK / fπ as constraints, we perform a χ2 analysis for the holographic parameters, including the mass scale parameter $\sqrtλ$ and the effective quark masses, and find that the fitted results are quite consistent with the ones obtained from the light-quark hadronic Regge trajectories. In addition, we also show that the end point divergence appearing in the pure annihilation $\bar{B}_s$ → π+ π- and $\bar{B}_d$ → K+ K- decays can be controlled well by using these improved light-front holographic distribution amplitudes.},
doi = {10.1103/PhysRevD.95.094025},
journal = {Physical Review D},
number = 9,
volume = 95,
place = {United States},
year = {Tue May 30 00:00:00 EDT 2017},
month = {Tue May 30 00:00:00 EDT 2017}
}

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Cited by: 17 works
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Works referencing / citing this record:

Revisiting the form factors of $$P\rightarrow V$$ P → V transition within the light-front quark models
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