Measurement of the absolute branching fraction for Λc+ → Λe+νe

We report the first measurement of the absolute branching fraction for Λ+c→Λe+νe. This measurement is based on 567  pb−1 of e+e− annihilation data produced at s√=4.599  GeV, which is just above the Λ+cΛ¯−c threshold. The data were collected with the BESIII detector at the BEPCII storage rings. The b...

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Bibliographic Details

Published in:	Physical Review Letters Vol. 115, № 22. P. 221805 (1-7)-
Corporate Author:	Томский государственный университет Радиофизический факультет Научные подразделения РФФ
Other Authors:	Ablikim, M., Ai, X. C., Chelkov, G. A., Achasov, M. N.
Format:	Article
Language:	English
Subjects:	BESIII, детектор BEPCII, коллайдер электроны статьи в журналах
Online Access:	http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000533204 Перейти в каталог НБ ТГУ