$Measurement of the τ-→ηπ-π+π-ντ branching fraction and a search for a second-class current in the τ- →η′(958)π-ντ decay$

Measurement of the τ-→ηπ-π+π-ντ branching fraction and a search for a second-class current in the τ- →η′(958)π-ντ decay

The τ-→ηπ-π+π-ντ decay with the η→γγ mode is studied using 384fb-1 of data collected by the BABAR detector. The branching fraction is measured to be (1.60±0. 05±0.11)×10-4. It is found that τ-→f1(1285)π- ντ→ηπ-π+π-ντ is the dominant decay mode with a branching fraction of (1.11±0.06±0.05)×10-4. The...

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Библиографические подробности
Главные авторы:	Aubert, B, Bona, M, Boutigny, D, Karyotakis, Y, Lees, J, Poireau, V, Prudent, X, Tisserand, V, Zghiche, A, Tico, J, Grauges, E, Lopez, L, Palano, A, Pappagallo, M, Eigen, G, Stugu, B, Sun, L, Abrams, G, Battaglia, M, Brown, D, Button-Shafer, J, Cahn, R, Groysman, Y, Jacobsen, R, Kadyk, J
Формат:	Journal article
Язык:	English
Опубликовано:	2008

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