Using data from the FOCUS (E831) experiment at Fermilab, we present a new measurement of the weak decay-asymmetry parameter αΛc in Λc+→Λπ+ decay. Comparing particle with antiparticle decays, we obtain the first measurement of the CP violation parameter A≡αΛc+α Λc/αΛc-αΛc. We obtain αΛc=-0.78±0.16±0.19 and A=-0.07±0.19±0.24 where errors are statistical and systematic.

Link, J., Yager, P., Anjos, J., Bediaga, I., Castromonte, C., Machado, A., et al. (2006). Study of the decay asymmetry parameter and CP violation parameter in the Λc+ → Λπ+ decay. PHYSICS LETTERS. SECTION B, 634(2-3), 165-172 [10.1016/j.physletb.2006.01.017].

Study of the decay asymmetry parameter and CP violation parameter in the Λc+ → Λπ+ decay

Gianini G.;
2006

Abstract

Using data from the FOCUS (E831) experiment at Fermilab, we present a new measurement of the weak decay-asymmetry parameter αΛc in Λc+→Λπ+ decay. Comparing particle with antiparticle decays, we obtain the first measurement of the CP violation parameter A≡αΛc+α Λc/αΛc-αΛc. We obtain αΛc=-0.78±0.16±0.19 and A=-0.07±0.19±0.24 where errors are statistical and systematic.
Articolo in rivista - Articolo scientifico
Physics
English
2006
634
2-3
165
172
none
Link, J., Yager, P., Anjos, J., Bediaga, I., Castromonte, C., Machado, A., et al. (2006). Study of the decay asymmetry parameter and CP violation parameter in the Λc+ → Λπ+ decay. PHYSICS LETTERS. SECTION B, 634(2-3), 165-172 [10.1016/j.physletb.2006.01.017].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/455451
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