Title
Measurement of polarization and search for CP violation in B s 0→φφ decays
Date Issued
22 December 2011
Access level
open access
Resource Type
journal article
Author(s)
Aaltonen T.
Álvarez González B.
Amerio S.
Amidei D.
Anastassov A.
Annovi A.
Antos J.
Apollinari G.
Appel J.A.
Apresyan A.
Arisawa T.
Artikov A.
Asaadi J.
Ashmanskas W.
Auerbach B.
Aurisano A.
Azfar F.
Badgett W.
Barbaro-Galtieri A.
Barnes V.E.
Barnett B.A.
Barria P.
Bartos P.
Bauce M.
Bauer G.
Bedeschi F.
Beecher D.
Behari S.
Bellettini G.
Bellinger J.
Benjamin D.
Beretvas A.
Bhatti A.
Binkley M.
Bisello D.
Bizjak I.
Bland K.R.
Blumenfeld B.
Bocci A.
Bodek A.
Bortoletto D.
Boudreau J.
Boveia A.
Brigliadori L.
Brisuda A.
Bromberg C.
Brucken E.
Bucciantonio M.
Budagov J.
Budd H.S.
Budd S.
Burkett K.
Busetto G.
Bussey P.
Buzatu A.
Calancha C.
Camarda S.
Campanelli M.
Campbell M.
Canelli F.
Carls B.
Carlsmith D.
Carosi R.
Carrillo S.
Carron S.
Casal B.
Casarsa M.
Castro A.
Catastini P.
Cauz D.
Cavaliere V.
Cavalli-Sforza M.
Cerri A.
Cerrito L.
Chen Y.C.
Chertok M.
Chiarelli G.
Chlachidze G.
Chlebana F.
Cho K.
Chokheli D.
Chou J.P.
Chung W.H.
Chung Y.S.
Ciobanu C.I.
Ciocci M.A.
Clark A.
Clarke C.
Compostella G.
Convery M.E.
Conway J.
Corbo M.
Cordelli M.
Cox C.A.
Cox D.J.
Crescioli F.
Cuenca Almenar C.
Cuevas J.
Culbertson R.
Dagenhart D.
Abstract
We present the first measurement of polarization and CP-violating asymmetries in a Bs0 decay into two light vector mesons, B s0→φφ, and an improved determination of its branching ratio using 295 decays reconstructed in a data sample corresponding to 2.9fb -1 of integrated luminosity collected by the CDF experiment at the Fermilab Tevatron collider. The fraction of longitudinal polarization is determined to be f L=0.348±0.041(stat)±0.021(syst), and the branching ratio B(Bs0→φφ)=[2.32±0.18(stat)±0. 82(syst)]×10 -5. Asymmetries of decay angle distributions sensitive to CP violation are measured to be A u=-0.007±0. 064(stat)±0.018(syst) and A v=-0.120±0.064(stat) ±0.016(syst). © 2011 American Physical Society.
Volume
107
Issue
26
Language
English
OCDE Knowledge area
Física atómica, molecular y química
Física de partículas, Campos de la Física
Scopus EID
2-s2.0-84455208502
Source
Physical Review Letters
ISSN of the container
10797114
Sponsor(s)
Science and Technology Facilities Council - ST/H001026/1, ST/H001026/2, ST/H001069/1.
Japan Society for the Promotion of Science - 18071002.
Sources of information:
Directorio de Producción Científica
Scopus