Details

Autor(en) / Beteiligte

• 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.

Titel

Search for Bs0→μ+μ- and B0→μ+μ- Decays with CDF II

Ist Teil von

• Physical review letters, 2011-11, Vol.107

Ort / Verlag

American Physical Society

Erscheinungsjahr

2011

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• A search has been performed for Bs0→μ+μ- and B0→μ+μ- decays using 7fb-1 of integrated luminosity collected by the CDF II detector at the Fermilab Tevatron collider. The observed number of B0 candidates is consistent with background-only expectations and yields an upper limit on the branching fraction of B(B0→μ+μ-)<6.0×10-9 at 95% confidence level. We observe an excess of Bs0 candidates. The probability that the background processes alone could produce such an excess or larger is 0.27%. The probability that the combination of background and the expected standard model rate of Bs0→μ+μ- could produce such an excess or larger is 1.9%. These data are used to determine B(Bs0→μ+μ-)=(1.8-0.9+1.1)×10-8 and provide an upper limit of B(Bs0→μ+μ-)<4.0×10-8 at 95% confidence level.