Strong Isospin Breaking in Heavy-Meson Decay Constants: Employing Borelized QCD Sum Rules in Local-Duality Limit
- Author(s)
- Wolfgang Lucha, Dmitri Melikhov, Silvano Simula
- Abstract
Applying the QCD sum-rule machinery in the so-called local-duality shape to heavy-light mesons reveals that, as a consequence of the non-zero mass gap between up and down quarks, the leptonic decay constants of the neutral and charged versions of the $D,$ $D^\ast,$ $B$ and $B^\ast$ mesons differ by approximately 1 MeV.
- 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
- EPJ Web of Conferences
- Volume
- 192
- No. of pages
- 7
- ISSN
- 2101-6275
- DOI
- https://doi.org/10.1051/epjconf/201819200041
- Publication date
- 11-2018
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103034 Particle physics
- Keywords
- ASJC Scopus subject areas
- Physics and Astronomy(all)
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/strong-isospin-breaking-in-heavymeson-decay-constants-employing-borelized-qcd-sum-rules-in-localduality-limit(96e76d71-bacc-4a17-a341-16fed1de64dd).html