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First flavor-tagged determination of bounds on mixing-induced CP violation in B-s(0)-> J/psi phi decays

Aaltonen T.
•
Adelman J.
•
Akimoto T.
altro
Zucchelli S.
2008
  • journal article

Periodico
PHYSICAL REVIEW LETTERS
Abstract
This Letter describes the first determination of bounds on the CP-violation parameter 2 beta(s) using B-s(0) decays in which the flavor of the bottom meson at production is identified. The result is based on approximately 2000 B-s(0) -> J/psi phi decays reconstructed in a 1.35 fb(-1) data sample collected with the CDF II detector using p (p) over bar collisions produced at the Fermilab Tevatron. We report confidence regions in the two-dimensional space of 2 beta(s) and the decay-width difference Delta Gamma. Assuming the standard model predictions of 2 beta(s) and Delta Gamma, the probability of a deviation as large as the level of the observed data is 15%, corresponding to 1.5 Gaussian standard deviations.
DOI
10.1103/PhysRevLett.100.161802
WOS
WOS:000255457600018
Archivio
http://hdl.handle.net/11390/848275
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-42449117177
Diritti
closed access
Web of Science© citazioni
190
Data di acquisizione
Mar 28, 2024
Visualizzazioni
2
Data di acquisizione
Apr 19, 2024
Vedi dettagli
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