Measurement of the branching fraction B(B+ u→J/ψπ+ ) and Search for B+ c→J/ψπ+

Published

Journal Article

We report on a measurement of the branching fraction of the Cabibbo-suppressed decay B+u→J/ψπ+, where J/ψJ/ψμ+μ-. The data were collected by the Collider Detector at Fermilab during 1992–1995 and correspond to an integrated luminosity of 110pb-1 in pp collisions at √s=1.8TeV. A signal of 28+10-9 events is observed and we determine the ratio of branching fractions B(B+u→J/ψπ+)/B(B+u→J/ψK+) to be [5.0+1.9-1.7(stat)±0.1(syst)]%. Using the world average value for B(B+u→J/ψπ+), we calculate the branching fraction B(B+u→J/ψπ+) to be (5.0+2.1-1.9)×10-5. We also search for the decay B+c→J/ψπ+ and report a 95% confidence level limit on σ(B+c)B+c→J/ψπ+/σ(B+u)B(B+u→J/ψK+) as a function of the B+c lifetime. © 1996 The American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Abe, F; Akimoto, H; Akopian, A; Albrow, MG; Amendolia, SR; Amidei, D; Antos, J; Anway-Wiese, C; Aota, S; Apollinari, G; Asakawa, T; Ashmanskas, W; Atac, M; Azfar, F; Azzi-Bacchetta, P; Bacchetta, N; Badgett, W; Bagdasarov, S; Bailey, MW; Bao, J; de Barbaro, P; Barbaro-Galtieri, A; Barnes, VE; Barnett, BA; Barzi, E; Bauer, G; Baumann, T; Bedeschi, F; Behrends, S; Belforte, S; Bellettini, G; Bellinger, J; Benjamin, D; Benlloch, J; Bensinger, J; Benton, D; Beretvas, A; Berge, JP; Berryhill, J; Bertolucci, S; Bevensee, B; Bhatti, A; Biery, K; Binkley, M; Bisello, D; Blair, RE; Blocker, C; Bodek, A; Bokhari, W; Bolognesi, V; Bolla, G; Bortoletto, D; Bondreau, J; Breccia, L; Bromberg, C; Bruner, N; Buckley-Geer, E; Budd, HS; Burkett, K; Busetto, G; Byon-Wagner, A; Byrum, KL; Cammerata, J; Campagnari, C; Campbell, M; Caner, A; Carithers, W; Carlsmith, D; Castro, A; Cauz, D; Cen, Y; Cervelli, F; Chang, PS; Chang, PT; Chao, HY; Chapman, J; Cheng, MT; Chiarelli, G; Chikamatsu, T; Chiou, CN; Christofek, L; Cihangir, S; Clark, AG; Cobal, M; Cocca, E; Contreras, M; Conway, J; Cooper, J; Cordelli, M; Couyoumtzelis, C; Crane, D; Cronin-Hennessy, D; Culbertson, R; Daniels, T; De Jongh, F; Delchamps, S; Dell’agnello, S; Dell’orso, M; Demina, R; Demortier, L

Published Date

  • January 1, 1996

Published In

Volume / Issue

  • 77 / 26

Start / End Page

  • 5176 - 5181

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/PhysRevLett.77.5176

Citation Source

  • Scopus