Precise ratios of decay constants of vector over pseudoscalar B(s) mesons

Wolfgang Lucha; Dmitri Melikhov; Silvano Simula

doi:10.22323/1.234.0532

Precise ratios of decay constants of vector over pseudoscalar B_(s) mesons

Wolfgang Lucha
, Dmitri Melikhov
, Silvano Simula

Particle Physics

Publications: Contribution to journal › Meeting abstract/Conference paper › Peer Reviewed

Abstract

The relative magnitude of the decay constants of the pseudoscalar and vector beauty mesons poses (in contrast to the case of charmed mesons) a long-standing puzzle. We revisit this problem within the framework of our recent improvements of the QCD sum-rule formalism for relating observable properties of mesons to quantum chromodynamics and are led to conclude that the decay constants of the beauty vector mesons are undoubtedly smaller than those of their pseudoscalar counterparts.

Original language	English
Article number	532
Number of pages	7
Journal	Proceedings of Science (PoS)
Volume	234
DOIs	https://doi.org/10.22323/1.234.0532
Publication status	Published - 2016
Event	23rd European Physical Society Conference on High Energy Physics, EPS-HEP 2015 - Vienna, Austria Duration: 22 Jul 2015 → 29 Jul 2015

Austrian Fields of Science 2012

103034 Particle physics

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10.22323/1.234.0532Licence: CC BY-NC-ND 4.0

Cite this

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title = "Precise ratios of decay constants of vector over pseudoscalar B(s) mesons",

abstract = "The relative magnitude of the decay constants of the pseudoscalar and vector beauty mesons poses (in contrast to the case of charmed mesons) a long-standing puzzle. We revisit this problem within the framework of our recent improvements of the QCD sum-rule formalism for relating observable properties of mesons to quantum chromodynamics and are led to conclude that the decay constants of the beauty vector mesons are undoubtedly smaller than those of their pseudoscalar counterparts.",

author = "Wolfgang Lucha and Dmitri Melikhov and Silvano Simula",

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AU - Lucha, Wolfgang

AU - Melikhov, Dmitri

AU - Simula, Silvano

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AB - The relative magnitude of the decay constants of the pseudoscalar and vector beauty mesons poses (in contrast to the case of charmed mesons) a long-standing puzzle. We revisit this problem within the framework of our recent improvements of the QCD sum-rule formalism for relating observable properties of mesons to quantum chromodynamics and are led to conclude that the decay constants of the beauty vector mesons are undoubtedly smaller than those of their pseudoscalar counterparts.

U2 - 10.22323/1.234.0532

DO - 10.22323/1.234.0532

M3 - Meeting abstract/Conference paper

AN - SCOPUS:84988632684

SN - 1824-8039

VL - 234

JO - Proceedings of Science (PoS)

JF - Proceedings of Science (PoS)

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T2 - 23rd European Physical Society Conference on High Energy Physics, EPS-HEP 2015

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