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Measurement of B hadron lifetimes using J/{psi} final states at CDF

Description/Abstract

The average bottom-hadron and individual B{sup +}, B{sup 0}, and B{sub s}{sup 0} meson lifetimes have been determined using decays with a J/{psi}{r_arrow}{mu}{sup +}{mu}{sup {minus}} in the final state. The data sample consists of 110 pb{sup {minus}1} of {bar p}p collisions at {radical} (s) =1.8 TeV collected by the CDF detector at the Fermilab Tevatron collider during 1992{endash}1995. For the average lifetime of B hadrons decaying into J/{psi}+X, we obtain {l_angle}{tau}{sub b}{r_angle}=1.533{plus_minus}0.015(stat){sub {minus}0.031}{sup +0.035}(syst)ps. For the B{sup +} and B{sup 0} meson lifetimes, we determine {tau}(B{sup +})=1.68{plus_minus}0.07(stat){plus_minus}0.02(syst)ps, {tau}(B{sup 0})=1.58{plus_minus}0.09(stat){plus_minus}0.02(syst)ps, and {tau}(B{sup +})/{tau}(B{sup 0})=1.06{plus_minus}0.07(stat){plus_minus}0.02(syst). For the B{sub s}{sup 0} meson lifetime, we find {tau}(B{sub s}{sup 0})=1.34{sub {minus}0.19}{sup +0.23}(stat){plus_minus}0.05(syst) ps. {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, Illinois60439 (United States)]; Breccia, L.; Brunetti, R.; Deninno, M.; Fiori, I.; Mazzanti, P. [Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127Bologna (Italy)]; Behrends, S.; Bensinger, J.; Blocker, C.; Kirsch, L.; Lamoureux, J.I. [Brandeis University, Waltham, Massachusetts02254 (United States)]; Bonushkin, Y.; Hauser, J.; Lindgren, M. [University of California at Los Angeles, Los Angeles, California90024 (United States)]; Amadon, A.; Berryhill, J.; Contreras, M.; Culbertson, R.; Frisch, H.; 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 Carolina27708 (United States)]; Albrow, M.G.; Atac, M.; Beretvas, A.; Berge, J.P.; Biery, K.; Binkley, M.; Buckley-Geer, E.; Byon-Wagner, A.; 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, Illinois60510 (United States)]; Klimenko, S.; Konigsberg, J.; Korytov, A. [University of Florida, Gainesville, Florida32611 (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-00044Frascati (Italy)]; Clark, A.G.; Couyoumtzelis, C.; Kambara, H. [University of Geneva, CH-1211Geneva 4 (Switzerland)]; Baumann, T.; Franklin, M.; Gordon, A.; Hamilton, R.; Huth, J.; Kestenbaum, D.; and others
Publication Date:1998 May 01
OSTI Identifier: 627850
Resource Type:Journal Article
Resource Relation:Journal Name: Physical Review, D; Journal Volume: 57; Journal Issue: 9; Other Information: PBD: May 1998
Country of Publication:United States
Language:English
Format: Size: pp. 5382-5401
Other Number(s):Journal ID: PRVDAQ; ISSN 0556-2821; TRN: 98:006192
Subject:66 PHYSICS; STRANGE PARTICLES; FERMILAB COLLIDER DETECTOR; B MESONS; LIFETIME; J PSI-3097 MESONS; WEAK HADRONIC DECAY; B PLUS MESONS; B NEUTRAL MESONS
Update Date:2009 Dec 16

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