Λ(b) and Λ(c) baryon decays at finite values of heavy quark masses

Abstract

Semileptonic decays of Λ(b) and Λ(c) baryons are studied within the relativistic three-quark model using finite values of heavy quark masses. Employing the same parameters as have been used previously for the description of exclusive decays of heavy baryons in the heavy quark limit we calculate the six form factors of the process and the corresponding decay rates. Our calculation shows that the 'finite mass' corrections are important in heavy-to-light transitions and are not negligible in heavy-to-heavy transitions. (C) 2000 Published by Elsevier Science B.V.

Original language	English
Pages (from-to)	58-64
Number of pages	7
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	476
Issue number	1-2
DOIs	https://doi.org/10.1016/S0370-2693(00)00111-8
Publication status	Published - 9 Mar 2000

Keywords

Charm and bottom baryons
Finite quark masses
Heavy quark limit
Relativistic quark model
Semileptonic decays

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/S0370-2693(00)00111-8

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title = "Λ(b) and Λ(c) baryon decays at finite values of heavy quark masses",

abstract = "Semileptonic decays of Λ(b) and Λ(c) baryons are studied within the relativistic three-quark model using finite values of heavy quark masses. Employing the same parameters as have been used previously for the description of exclusive decays of heavy baryons in the heavy quark limit we calculate the six form factors of the process and the corresponding decay rates. Our calculation shows that the 'finite mass' corrections are important in heavy-to-light transitions and are not negligible in heavy-to-heavy transitions. (C) 2000 Published by Elsevier Science B.V.",

keywords = "Charm and bottom baryons, Finite quark masses, Heavy quark limit, Relativistic quark model, Semileptonic decays",

author = "Ivanov, {M. A.} and K{\"o}rner, {J. G.} and Lyubovitskij, {V. E.} and Rusetsky, {A. G.}",

year = "2000",

month = mar,

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doi = "10.1016/S0370-2693(00)00111-8",

language = "English",

volume = "476",

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journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

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TY - JOUR

T1 - Λ(b) and Λ(c) baryon decays at finite values of heavy quark masses

AU - Ivanov, M. A.

AU - Körner, J. G.

AU - Lyubovitskij, V. E.

AU - Rusetsky, A. G.

PY - 2000/3/9

Y1 - 2000/3/9

N2 - Semileptonic decays of Λ(b) and Λ(c) baryons are studied within the relativistic three-quark model using finite values of heavy quark masses. Employing the same parameters as have been used previously for the description of exclusive decays of heavy baryons in the heavy quark limit we calculate the six form factors of the process and the corresponding decay rates. Our calculation shows that the 'finite mass' corrections are important in heavy-to-light transitions and are not negligible in heavy-to-heavy transitions. (C) 2000 Published by Elsevier Science B.V.

AB - Semileptonic decays of Λ(b) and Λ(c) baryons are studied within the relativistic three-quark model using finite values of heavy quark masses. Employing the same parameters as have been used previously for the description of exclusive decays of heavy baryons in the heavy quark limit we calculate the six form factors of the process and the corresponding decay rates. Our calculation shows that the 'finite mass' corrections are important in heavy-to-light transitions and are not negligible in heavy-to-heavy transitions. (C) 2000 Published by Elsevier Science B.V.

KW - Charm and bottom baryons

KW - Finite quark masses

KW - Heavy quark limit

KW - Relativistic quark model

KW - Semileptonic decays

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U2 - 10.1016/S0370-2693(00)00111-8

DO - 10.1016/S0370-2693(00)00111-8

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VL - 476

SP - 58

EP - 64

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 1-2