Lifetimes of singly charmed hadrons

Gratrex, James; Melić, Blaženka; Nišandžić, Ivan (2022) Lifetimes of singly charmed hadrons. Journal of High Energy Physics, 2022 (7). ISSN 1029-8479

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Abstract

We provide an extensive study of the lifetimes of singly charmed baryons and mesons, within the heavy quark expansion with all known corrections included. A special attention is devoted to the choice of the charm mass and wavefunctions of heavy baryons. We give our predictions for lifetimes, lifetime ratios, and semileptonic branching ratios of singly charmed baryons. Our results accommodate the experimentally-favoured hierarchy of singly charmed baryon lifetimes tau(Xi(0)(c)) < tau(Lambda(+)(c)) < tau (Omega(0)(c)) < tau(Xi(+)(c)), in contrast to earlier theoretical findings. Predictions for charmed meson lifetimes and semileptonic decay rates are in agreement with a recent comprehensive study and experimental results within

Item Type:	Article
Uncontrolled Keywords:	Properties of Hadrons ; Charm Flavour Violation
Subjects:	NATURAL SCIENCES > Physics > Physics of Elementary Particles and Fields
Divisions:	Theoretical Physics Division
Projects:	Project title Project leader Project code Project type Raspadi i vremena života teških hadrona-HHDeLi Blaženka Melić IP-2019-04-7094 HRZZ
Depositing User:	Ivan Nišandžić
Date Deposited:	06 Feb 2024 14:06
URI:	http://fulir.irb.hr/id/eprint/8487
DOI:	10.1007/JHEP07(2022)058

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