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Measurement of the CP -Violation Parameter sin(2{beta}) in B{sup 0}{sub d}/{ovr B}{sup thinsp0}{sub d } {r_arrow} J/{psi}K{sup 0}{sub S} Decays

Description/Abstract

We present a measurement of the time-dependent asymmetry in the rate for {ovr B}{sup thinsp0}{sub d} versus B{sup 0}{sub d} decays to J/{psi}K{sup 0}{sub S} . A nonzero asymmetry would be an indication of CP violation, and within the standard model this may be used to measure the CP -violation parameter sin(2{beta}) . A total of 198{plus_minus}17 B{sup 0}{sub d}/{ovr B}{sup thinsp0}{sub d} decays were observed in p{ovr p} collisions at {radical} (s) =1.8 TeV by the CDF detector at the Fermilab Tevatron. B{sup 0}{sub d} and {ovr B}{sup thinsp0}{sub d} are distinguished by a technique based on charge correlations from hadronization of the b quark. Our analysis results in sin(2{beta})=1.8{plus_minus}1.1(stat ){plus_minus}0.3(syst) . {copyright} {ital 1998} {ital The American Physical Society }

Authors: Blair, R.E.; Byrum, K.L.; Kovacs, E.; Kuhlmann, S.E.; LeCompte, T.; Nodulman, L. [Argonne National Laboratory, Argonne, Illinois 60439 (United States)]; Breccia, L.; Brunetti, R.; Deninno, M.; Fiori, I.; Mazzanti, P. [Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna (Italy)]; Behrends, S.; Bensinger, J.; Blocker, C.; Kirsch, L.; Lamoureux, J.I. [Brandeis University, Waltham, Massachusetts 02254 (United States)]; Bonushkin, Y.; Hauser, J.; Lindgren, M. [University of California at Los Angeles, Los Angeles, California 90024 (United States)]; Amadon, A.; Berryhill, J.; Contreras, M.; Culbertson, R.; Grosso-Pilcher, C.; Hohlmann, M.; Nakaya, T. [University of Chicago, Chicago, Illinois 60637 (United States)]; Cronin-Hennessy, D.; Dittmann, J.R.; Goshaw, A.T.; Khazins, D.; Kowald, W.; Oh, S.H. [Duke University, Durham, North Carolina 27708 (United States)]; Albrow, M.G.; Atac, M.; Beretvas, A.; Berge, J.P.; Biery, K.; Binkley, M.; Buckley-Geer, E.; Byon-Wagner, A.; Chlebana, F.; Cihangir, S.; Cooper, J.; DeJongh, F.; Demina, R.; Derwent, P.F.; Elias, J.E.; Erdmann, W.; Flaugher, B.; Foster, G.W.; Freeman, J.; Geer, S.; Hahn, S.R.; Harris, R.M.; Incadela, J.; Jensen, H.; Joshi, U.; Kennedy, R.D.; Kephart, R.; Lammel, S.; Lewis, J.D.; Limon, P.; Lukens, P.; Maeshima, K.; Marriner, J.P.; Miao, T.; Mukherjee, A.; Nelson, C.; Newman-Holmes, C. [Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)]; Klimenko, S.; Konigsberg, J.; Korytov, A.; Nomerotski, A. [University of Florida, Gainesville, Florida 32611 (United States)]; Barone, M.; Bertolucci, S.; Cordelli, M.; DellAgnello, S.; Giromini, P.; Happacher, F.; Miscetti, S. [Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati (Italy)]; Clark, A.G.; Couyoumtzelis, C.; Kambara, H. [University of Geneva, CH-1211 Geneva 4 (Switzerland)]; Baumann, T.; Franklin, M.; Gordon, A.; Hamilton, R.; Huth, J.; Kestenbaum, D.; and others
Publication Date:1998 Dec 01
OSTI Identifier: 300131
Resource Type:Journal Article
Resource Relation:Journal Name: Physical Review Letters; Journal Volume: 81; Journal Issue: 25; Other Information: PBD: Dec 1998
Country of Publication:United States
Language:English
Format: Size: pp. 5513-5518
Other Number(s):Journal ID: PRLTAO; ISSN 0031-9007; TRN: 99:002449
Subject:66 PHYSICS; B MESONS; B NEUTRAL MESONS; HADRONIC PARTICLE DECAY; CP INVARIANCE; STANDARD MODEL; FERMILAB TEVATRON; J PSI-3097 MESONS; KAONS NEUTRAL
Update Date:2009 Dec 16

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