Preasymptotic effects in beauty decays

Guberina, Branko; Melić, Blaženka; Štefančić, Hrvoje (2000) Preasymptotic effects in beauty decays. In: Cheng, Hai Yang; Hou, Wei Shu, (eds.) Proceedings of the Third International Conference - B Physics and CP Violation. Singapore, World Scientific, pp. 156-159 .

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Abstract

Large preasymptotic effects in beauty decays have been found using heavy-quark and SU(3) symmetry, as well as experimental data on charmed hyperons. Contrary to rather uniform beauty-meson lifetimes, a much larger spread of beauty-baryon lifetimes is predicted. However, it is highly unlikely that, theoretically, the τ(Λb)/τ(B0d) ratio, which at present deviates more than 1σ from the experimental result, can be lowered below 0.9.

Item Type:	Conference or workshop item published in conference proceedings (UNSPECIFIED)
Uncontrolled Keywords:	preasymptotic effects; beauty decays; HQS
Subjects:	NATURAL SCIENCES > Physics
Divisions:	Theoretical Physics Division
Depositing User:	Lorena Palameta
Date Deposited:	22 Jan 2025 09:31
URI:	http://fulir.irb.hr/id/eprint/9500
DOI:	10.1142/9789812791870_0024

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