Dynamical lattice computation of the Isgur-Wise functions τ1/2 and τ3/2
- We perform a two-flavor dynamical lattice computation of the Isgur-Wise functions t1/2 and t3/2 at zero recoil in the static limit. We find t1/2(1) = 0.297(26) and t3/2(1) = 0.528(23) fulfilling Uraltsev’s sum rule by around 80%. We also comment on a persistent conflict between theory and experiment regarding semileptonic decays of B mesons into orbitally excited P wave D mesons, the so-called “1/2 versus 3/2 puzzle”, and we discuss the relevance of lattice results in this context.
| Author: | Benoit Blossier, Marc WagnerORCiDGND, Olivier Pène |
|---|---|
| URN: | urn:nbn:de:hebis:30:3-274487 |
| ISSN: | 1824-8039 |
| ArXiv Id: | http://arxiv.org/abs/0909.0858 |
| Parent Title (English): | Proceedings of Science |
| Publisher: | Scuola Internazionale Superiore di Studi Avanzati |
| Place of publication: | Trieste |
| Document Type: | Conference Proceeding |
| Language: | English |
| Year of Completion: | 2012 |
| Year of first Publication: | 2009 |
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Release Date: | 2012/12/14 |
| Volume: | 2009 |
| Issue: | (LAT2009)253 |
| Page Number: | 7 |
| First Page: | 1 |
| Last Page: | 7 |
| Note: | The XXVII International Symposium on Lattice Field Theory July 26-31, 2009 Peking University, Beijing, China |
| HeBIS-PPN: | 416425321 |
| Institutes: | Physik / Physik |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Sammlungen: | Universitätspublikationen |
| Licence (German): |  Creative Commons - Namensnennung-Keine kommerzielle Nutzung-Weitergabe unter gleichen Bedingungen |
