New measurement of ξ- → Λπ- decay parameters

A study on the measurement of φ≡ using a sample of 144×106 ≡- →λπ- decays having an average polarization of 3.7% was presented. The polarized ≡-'s were produced by directing an 800 geV÷c proton beam onto a 2 mm ×2 mm× 60 mm cu target at angles of +3 and -3 mrad. The results were shown to be a 2.9× improvement over the best previous mesurements. It was shown that CP violation in charged ≡→λπ decays are not suppressed by a vanishing final phase shift difference.


Published in:
Physical Review Letters, 93, 1, 011802-1
Year:
2004
ISSN:
00319007
Other identifiers:
Scopus: 2-s2.0-3442883881
Laboratories:




 Record created 2010-11-05, last modified 2018-01-28


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