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Semileptonic bc to cc Baryon Decay and Heavy Quark Spin Symmetry

Semileptonic bc to cc Baryon Decay and Heavy Quark Spin Symmetry
Semileptonic bc to cc Baryon Decay and Heavy Quark Spin Symmetry
We study the semileptonic decays of the lowest-lying bc baryons to the lowest-lying cc baryons (b0c ! cc and 0 bc ! cc), in the limit mb;mc QCD and close to the zero-recoil point. The separate heavy quark spin symmetries make it possible to describe all these decays using a single form factor. We recover results derived previously by White and Savage in a manner which we think is more straightforward and parallels the method applied later to study Bc semileptonic decays. We further discuss the resemblance between the bc baryon decays and those of Bc mesons to c and J= mesons and comment on the relation between the slopes of the single functions describing each set of decays. Our results can straightforwardly be applied to the decays of bb baryons to bc baryons.
1550-7998
017502-[4pp]
Flynn, Jonathan. M.
d8e90963-ba56-415c-bbd4-496b7d91d343
Nieves, Juan
7d5cbd0b-f25d-44f0-be50-fdecb2e54bfe
Flynn, Jonathan. M.
d8e90963-ba56-415c-bbd4-496b7d91d343
Nieves, Juan
7d5cbd0b-f25d-44f0-be50-fdecb2e54bfe

Flynn, Jonathan. M. and Nieves, Juan (2007) Semileptonic bc to cc Baryon Decay and Heavy Quark Spin Symmetry. Physical Review D, 76 (1), 017502-[4pp]. (doi:10.1103/PhysRevD.76.017502).

Record type: Article

Abstract

We study the semileptonic decays of the lowest-lying bc baryons to the lowest-lying cc baryons (b0c ! cc and 0 bc ! cc), in the limit mb;mc QCD and close to the zero-recoil point. The separate heavy quark spin symmetries make it possible to describe all these decays using a single form factor. We recover results derived previously by White and Savage in a manner which we think is more straightforward and parallels the method applied later to study Bc semileptonic decays. We further discuss the resemblance between the bc baryon decays and those of Bc mesons to c and J= mesons and comment on the relation between the slopes of the single functions describing each set of decays. Our results can straightforwardly be applied to the decays of bb baryons to bc baryons.

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More information

Published date: 2007
Organisations: Physics & Astronomy

Identifiers

Local EPrints ID: 144001
URI: https://eprints.soton.ac.uk/id/eprint/144001
ISSN: 1550-7998
PURE UUID: b961ac92-3879-4202-86d7-b1875599a698
ORCID for Jonathan. M. Flynn: ORCID iD orcid.org/0000-0002-6280-1677

Catalogue record

Date deposited: 14 Apr 2010 13:46
Last modified: 06 Jun 2018 13:09

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