Precise ratios of decay constants of vector over pseudoscalar B<sub>(s)</sub> mesons
- Author(s)
- Wolfgang Lucha, Dmitri Melikhov, Silvano Simula
- 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.
- Organisation(s)
- Particle Physics
- External organisation(s)
- Österreichische Akademie der Wissenschaften (ÖAW), Anuchin Research Institute and Museum of Anthropology, Universität Wien, Istituto Nazionale di Fisica Nucleare (INFN), Roma
- Journal
- Proceedings of Science (PoS)
- Volume
- 234
- No. of pages
- 7
- DOI
- https://doi.org/10.22323/1.234.0532
- Publication date
- 2016
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103034 Particle physics
- ASJC Scopus subject areas
- General
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/precise-ratios-of-decay-constants-of-vector-over-pseudoscalar-bs-mesons(1a9e3196-c52a-45ca-a727-f3886ad18cb1).html