Strong Isospin Breaking in Heavy-Meson Decay Constants: Employing Borelized QCD Sum Rules in Local-Duality Limit
- Autor(en)
- Wolfgang Lucha, Dmitri Melikhov, Silvano Simula
- Abstrakt
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(en)
- Teilchenphysik
- Externe Organisation(en)
- Österreichische Akademie der Wissenschaften (ÖAW), Lomonosov Moscow State University (MSU), Universität Wien, Istituto Nazionale di Fisica Nucleare (INFN), Roma
- Journal
- EPJ Web of Conferences
- Band
- 192
- Anzahl der Seiten
- 7
- ISSN
- 2101-6275
- DOI
- https://doi.org/10.1051/epjconf/201819200041
- Publikationsdatum
- 11-2018
- Peer-reviewed
- Ja
- ÖFOS 2012
- 103034 Teilchenphysik
- Schlagwörter
- ASJC Scopus Sachgebiete
- Physics and Astronomy(all)
- Link zum Portal
- https://ucris.univie.ac.at/portal/de/publications/strong-isospin-breaking-in-heavymeson-decay-constants-employing-borelized-qcd-sum-rules-in-localduality-limit(96e76d71-bacc-4a17-a341-16fed1de64dd).html