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Measurement of polarization and search for CP violation in B s0→φφ decays

Aaltonen, T.
•
Álvarez González, B.
•
Amerio, S.
altro
Zucchelli, S.
2011
  • journal article

Periodico
PHYSICAL REVIEW LETTERS
Abstract
We present the first measurement of polarization and CP-violating asymmetries in a B0s decay into two light vector mesons, B0s→φφ, and an improved determination of its branching ratio using 295 decays reconstructed in a data sample corresponding to 2.9 fb−1 of integrated luminosity collected by the CDF experiment at the Fermilab Tevatron collider. The fraction of longitudinal polarization is determined to be fL=0.348±0.041(stat)±0.021(syst), and the branching ratio B(B0s→φφ)=[2.32±0.18(stat)±0.82(syst)]×10−5. Asymmetries of decay angle distributions sensitive to CP violation are measured to be Au=−0.007±0.064(stat)±0.018(syst) and Av=−0.120±0.064(stat)±0.016(syst).
DOI
10.1103/PhysRevLett.107.261802
WOS
WOS:000310640000001
Archivio
http://hdl.handle.net/11390/1084561
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84455208502
http://oai.aps.org/filefetch?identifier=10.1103/PhysRevLett.107.261802&component=fulltext&description=markup&format=xml
Diritti
metadata only access
Soggetti
  • Physics and Astronomy...

Scopus© citazioni
37
Data di acquisizione
Jun 2, 2022
Vedi dettagli
Web of Science© citazioni
31
Data di acquisizione
Mar 23, 2024
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