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Measurement of the B{sup {minus}} and {bar B}{sup 0} meson lifetimes using semileptonic decays

Description/Abstract

The lifetimes of the B{sup {minus}} and {bar B}{sup 0} mesons are measured using the partially reconstructed semileptonic decays {bar B}{r_arrow}Dl{sup {minus}}{bar {nu}}X, where D is either a D{sup 0} or D{sup {asterisk}+} meson. The data were collected by the CDF detector at the Fermilab Tevatron collider during 1992{endash}1995 and correspond to about 110thinsppb{sup {minus}1} of {bar p}p collisions at {radical} (s) =1.8thinspTeV. We measure decay lengths and extract the lifetimes to be {tau}(B{sup {minus}})=1.637{plus_minus}0.058{sub {minus}0.043}{sup +0.045} ps and {tau}({bar B}{sup 0})=1.474{plus_minus}0.039{sub {minus}0.051}{sup +0.052}thinspps, and the ratio of the lifetimes to be {tau}(B{sup {minus}})/{tau}({bar B}{sup 0})=1.110{plus_minus}0.056{sub {minus}0.030}{sup +0.033}, where the first uncertainties are statistical and the second are systematic. {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. [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.; Incandela, 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.; Patrick, J. [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.; Parri, A. [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 Nov 01
OSTI Identifier: 298612
Resource Type:Journal Article
Resource Relation:Journal Name: Physical Review, D; Journal Volume: 58; Journal Issue: 9; Other Information: PBD: Nov 1998
Country of Publication:United States
Language:English
Format: Size: pp. 092002
Other Number(s):Journal ID: PRVDAQ; ISSN 0556-2821; TRN: 99:001008
Subject:66 PHYSICS; B MESONS; SEMILEPTONIC DECAY; B MINUS MESONS; ANTI-B NEUTRAL MESONS; BEAUTY PARTICLES; LIFETIME; D NEUTRAL MESONS; D PLUS MESONS; FERMILAB TEVATRON; PROTON-ANTIPROTON INTERACTIONS
Update Date:2009 Dec 16

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