Light-front holographic distribution amplitudes of pseudoscalar mesons and their application to -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:
-
- Henan Normal Univ. (China). Inst. of Particle and Nuclear Physics; SLAC National Accelerator Lab., Menlo Park, CA (United States)
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- 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}
}
Web of Science
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