Study of B0 → J/ψK(*)0π+π- decays with the collider detector at Fermilab

T. Affolder,H. Akimoto, A. Akopian, M. G. Albrow, P. Amaral, D. Amidei, K. Anikeev, J. Antos,Giorgio Apollinari, Tetsuo Arisawa, A. Artikov, T. Asakawa, W. Ashmanskas, F. Azfar, P. Azzi-Bacchetta,Nicola Bacchetta, H. Bachacou, S. Bailey,P. de Barbaro, A. Barbaro-Galtieri,Virgil E Barnes,B. A. Barnett,S. Baroiant, M. Barone,G. Bauer,F. Bedeschi,Stefano Belforte,W. H. Bell, G. Bellettini, J. N. Bellinger,D. P. Benjamin, J. R. Bensinger, Andrew Beretvas, J. P. Berge, J. Berryhill, A. Bhatti,M. Binkley,Dario Bisello, M. Bishai, R. E. Blair, Craig Blocker,Kenneth Bloom,Barry Blumenfeld,S. Blusk, Andrea Bocci, A. Bodek,W. Bokhari,Gino Bolla, Y. Bonushkin,Daniela Bortoletto,J. Boudreau, A. Brandl,S. C. van den Brink, C. Bromberg, M. Brozovic, E. Brubaker,N. Bruner, E. Buckley-Geer, J. Budagov, H. S. Budd,Kevin Burkett,G. Busetto, A. Byon-Wagner, K. L. Byrum,S. Cabrera,Paolo Calafiura, M. Campbell, W. Carithers, J. Carlson,Duncan Carlsmith, W. Caskey,A. Castro,D. Cauz,A. Cerri,Aw Chan,P. S. Chang,P. T. Chang, J. W. Chapman,Chunhui Chen,Y. C. Chen, M. T. Cheng,Maxwell Chertok, G. Chiarelli,I.E. Chirikov-Zorin, G. Chlachidze,Frank Chlebana, L. Christofek, M. L. Chu,Y. S. Chung,C. I. Ciobanu,A. G. Clark, A. P. Colijn, A. Connolly,J. Conway, M. Cordelli,J. Cranshaw, R. Cropp, R. Culbertson, D. Dagenhart, Saverio D'Auria

Physical Review Letters（2002）

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摘要

We report a study of the decays B-0 --> J/psiK((*)0) pi(+) pi(-), which involve the creation of a u(u) over bar or d(d) over bar quark pair in addition to a (b) over bar --> (c) over bar(c(s) over bar) decay. The data sample consists of 110 pb(-1) of p(p) over bar collisions at roots = 1.8 TeV collected by the CDF detector at the Fermilab Tevatron collider during 1992-1995. We measure the branching fractions to be B(B-0 --> J/psiK(*0) pi(+) pi(-)) = (6.6 +/- 1.9 +/- 1.1) X 10(-4) and B(B-0 --> J/psiK(0) pi(+) pi(-)) = (10.3 +/- 3.3 +/- 1.5) X 10(-4). Evidence is seen for contributions from psi(2S)K-(*)0, J/psiK(0) rho(0), J/psiK(*+) pi(-), and J/psiK(1)(1270).

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