Study of the Λb→N∗ℓ+ℓ- decay in light cone sum rules

Aliev, T. M. (Aff1, 0000 0001 1881 7391, Physics Department, Middle East Technical University, 06531, Ankara, Turkey) ; Barakat, T. (Aff2, 0000 0004 1773 5396, Physics Department, King Saud University, 11451, Riyadh, Saudi Arabia) ; Savcı, M. (Aff1, 0000 0001 1881 7391, Physics Department, Middle East Technical University, 06531, Ankara, Turkey)

04 May 2019

Abstract: The form factors of the Λb→N∗ℓ+ℓ- decay are calculated in the framework of the light cone QCD sum rules. In the calculations the contribution of the negative parity Λb∗ baryon is eliminated by constructing the sum rules for different Lorentz structures. Furthermore the branching ratio of the semileptonic Λb→N∗ℓ+ℓ- decay is calculated. The numerical study for the branching ratio of the Λb→N∗ℓ+ℓ- decay indicates that it is quite large and could be measurable at future planned experiments to be conducted at LHCb.


Published in: EPJC 79 (2019) 383
Published by: Springer/Società Italiana di Fisica
DOI: 10.1140/epjc/s10052-019-6879-0
License: CC-BY-3.0



Back to search

Fulltext:
Download fulltextXML Download fulltextPDF (PDFA)