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research article
Search for CP violation in charged-Ξ and Λ hyperon decays
The novel sources of CP violation observed in charged χ and λ hyperon decays were investigated. A comparison of the p and p̄ angular distributions in the hyperon decays was made using a subset of the data from the HyperCP experiment (E871) at Fermilab. A possible source of bias was found to be a momentum-dependent differential loss of events due to interactions of the χ- and χ̄+ decay products. The obtained result was observed to be stable with respect to time, χ momentum, and secondary-beam intensity, The results show that differences between the χ- and χ+ production angles could cause a bias due to production polarization differences.
Type
research article
Scopus ID
2-s2.0-37649030015
Authors
Holmstrom, T.
•
Leros, N.
•
Burnstein, R.A.
•
Chakravorty, A.
•
Chan, A.
•
Chen, Y.C.
•
Choong, W.S.
•
Clark, K.
•
Dukes, E.C.
•
Durandet, C.
Publication date
2004
Published in
Volume
93
Issue
26 I
Article Number
262001
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
November 5, 2010
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