Inclusive semi-leptonic B(s) mesons decay at the physical b quark mass
Inclusive semi-leptonic B(s) mesons decay at the physical b quark mass
We address the non-perturbative calculation of the decay rate of inclusive semi-leptonic $B_{(s)}$ mesons decays from lattice QCD. Precise theoretical Standard Model predictions are key ingredients in searches for new physics. This type of computation may eventually provide new insight into the long-standing tension between the inclusive and exclusive determinations of the CKM matrix elements $|V_{cb}|$ and $|V_{ub}|$. We perform a pilot lattice computation for $B_s \rightarrow X_c \, l \nu_l$ and improve on existing techniques. The valence-quark masses in our simulations are approximately physical for the domain-wall strange and charm quarks as well as for the bottom quark, for which we use a relativistic heavy quark effective action. We report on our progress and discuss future plans towards a first study with fully controlled systematic effects.
hep-lat
Barone, Alessandro
6101b472-6a3f-4f75-81c5-1987eeb455db
Hashimoto, Shoji
2b3be047-9e76-42d7-ba7e-50f230e88446
Jüttner, Andreas
a90ff7c5-ae8f-4c8e-9679-b5a95b2a6247
Kaneko, Takashi
c02e60bd-618e-4c8a-b0e1-22a19d877c50
Kellermann, Ryan
e648d747-545c-4371-b656-7638b10ac138
Barone, Alessandro
6101b472-6a3f-4f75-81c5-1987eeb455db
Hashimoto, Shoji
2b3be047-9e76-42d7-ba7e-50f230e88446
Jüttner, Andreas
a90ff7c5-ae8f-4c8e-9679-b5a95b2a6247
Kaneko, Takashi
c02e60bd-618e-4c8a-b0e1-22a19d877c50
Kellermann, Ryan
e648d747-545c-4371-b656-7638b10ac138
Barone, Alessandro, Hashimoto, Shoji, Jüttner, Andreas, Kaneko, Takashi and Kellermann, Ryan
(2022)
Inclusive semi-leptonic B(s) mesons decay at the physical b quark mass.
In Proceedings of the 39th International Symposium on Lattice Field Theory.
10 pp
.
(doi:10.48550/arXiv.2211.15623).
Record type:
Conference or Workshop Item
(Paper)
Abstract
We address the non-perturbative calculation of the decay rate of inclusive semi-leptonic $B_{(s)}$ mesons decays from lattice QCD. Precise theoretical Standard Model predictions are key ingredients in searches for new physics. This type of computation may eventually provide new insight into the long-standing tension between the inclusive and exclusive determinations of the CKM matrix elements $|V_{cb}|$ and $|V_{ub}|$. We perform a pilot lattice computation for $B_s \rightarrow X_c \, l \nu_l$ and improve on existing techniques. The valence-quark masses in our simulations are approximately physical for the domain-wall strange and charm quarks as well as for the bottom quark, for which we use a relativistic heavy quark effective action. We report on our progress and discuss future plans towards a first study with fully controlled systematic effects.
Text
2211.15623v1
- Author's Original
More information
Accepted/In Press date: 8 August 2022
e-pub ahead of print date: 28 November 2022
Additional Information:
10 pages, 6 figures
Venue - Dates:
39th International Symposium on Lattice Field Theory (Lattice 2022), , Bonn, Germany, 2022-08-08 - 2022-08-13
Keywords:
hep-lat
Identifiers
Local EPrints ID: 473266
URI: http://eprints.soton.ac.uk/id/eprint/473266
PURE UUID: 6e1d95b0-484c-47a2-ac8d-b6d13dbc4a3d
Catalogue record
Date deposited: 13 Jan 2023 17:30
Last modified: 17 Mar 2024 03:57
Export record
Altmetrics
Contributors
Author:
Shoji Hashimoto
Author:
Takashi Kaneko
Author:
Ryan Kellermann
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
