Angular analysis and branching fraction measurement of the decay B0 to K*0 mu+ mu-
- Chatrchyan, S.
- Besancon, M.
- Couderc, F.
- Dejardin, M.
- Denegri, D.
- Fabbro, B.
- Faure, J.L.
- Ferri, F.
- Ganjour, S.
- Givernaud, A.
- Gras, P.
- Hamel de Monchenault, G.
- Jarry, P.
- Locci, E.
- Malcles, J.
- Millischer, L.
- Nayak, A.
- Rander, J.
- Rosowsky, A.
- Titov, M.
- Baffioni, S.
- Beaudette, F.
- Benhabib, L.
- Bluj, M.
- Busson, Pierre
- Charlot, C.
- Daci, N.
- Dahms, T.
- Dalchenko, M.
- Dobrzynski, L.
- Florent, A.
- Granier de Cassagnac, R.
- Haguenauer, M.
- Mine, P.
- Mironov, C.
- Naranjo, I.N.
- Nguyen, M.
- Ochando, C.
- Paganini, P.
- Sabes, D.
- Salerno, R.
- Sirois, Y.
- Veelken, C.
- Zabi, A.
- Agram, J.-L.
- Andrea, J.
- Bloch, D.
- Brom, J.-M.
- Chabert, E.C.
- Collard, C.
- Conte, E.
- Drouhin, F.
- Fontaine, J.-C.
- Gele, D.
- Goerlach, U.
- Goetzmann, C.
- Juillot, P.
- Le Bihan, A.-C.
- van Hove, P.
- Gadrat, S.
- Beauceron, S.
- Beaupere, N.
- Boudoul, G.
- Brochet, S.
- Chasserat, J.
- Chierici, R.
- Contardo, D.
- Depasse, P.
- El Mamouni, H.
- Fay, J.
- Gascon, S.
- Gouzevitch, M.
- Ille, B.
- Kurca, T.
- Lethuillier, M.
- Mirabito, L.
- Perries, S.
- Sgandurra, L.
- Sordini, V.
- Vander Donckt, M.
- Verdier, P.
- Viret, S.
DOIAbstract
see paper for full list of authors, Submitted to Phys. Lett. BThe angular distributions and the differential branching fraction of the decay B0 to K*(892)0 mu+ mu- are studied using a data sample corresponding to an integrated luminosity of 5.2 inverse femtobarns collected with the CMS detector at the LHC in pp collisions at sqrt(s) = 7 TeV. From more than 400 signal decays, the forward-backward asymmetry of the muons, the K*(892)0 longitudinal polarization fraction, and the differential branching fraction are determined as a function of the square of the dimuon invariant mass. The measurements are in good agreement with standard model predictions
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