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Title Observation of the {ital B}{sub {ital c}} Meson in {ital p}{ovr {ital p}} Collisions at {radical} ({ital s}) =1.8 TeV
Creator/Author 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 Date1998 Sep 01
OSTI IdentifierOSTI ID: 298578
Other Number(s)Journal ID: PRLTAO; ISSN 0031-9007; TRN: TRN: 9820M0043
Resource TypeJournal Article
Resource RelationJournal Name: Physical Review Letters; Journal Volume: 81; Journal Issue: 12; Other Information: PBD: Sep 1998
Subject66 PHYSICS; B MESONS; B MINUS MESONS; B PLUS MESONS; PROTON-ANTIPROTON INTERACTIONS; FERMILAB TEVATRON; LIFETIME; MASS; SEMILEPTONIC DECAY; CHARM PARTICLES; BRANCHING RATIO; QUARKS; J PSI-3097 MESONS
Description/AbstractWe have observed bottom-charm mesons via the decay mode B{sup {plus_minus}}{sub c}{r_arrow}J/{psi}thinsp {ell}{sup {plus_minus}}{nu} in 1.8thinspthinspTeV p{ovr p} collisions using the CDF detector at the Fermilab Tevatron. A fit of background and signal contributions to the J/{psi}thinsp{ell} mass distribution yielded 20.4{sup +6.2}{sub {minus}5.5} events from B{sub c} mesons. A fit to the same distribution with background alone was rejected at the level of 4.8thinspthinspstandard deviations. We measured the B{sup +}{sub c} mass to be 6.40{plus_minus}0.39(stat){plus_minus}0.13( syst) GeV/c{sup 2} and the B{sup +}{sub c} lifetime to be 0.46{sup +0.18}{sub {minus}0.16}(stat) {plus_minus}0.03(syst)thinspps . Our measured yield (production cross section times branching ratio) for B{sup +}{sub c}{r_arrow}J/{psi}thinsp{ell}{sup +}{nu} relative to that for B{sup +}{r_arrow}J/{psi}thinspK{sup +} is 0.132{sup +0.041}{sub {minus}0.037}(stat ){plus_minus}0.031(syst){sup +0.032}{sub {minus}0.020}(lifetime) . {copyright} {ital 1998} {ital The American Physical Society }
Country of PublicationUnited States
LanguageEnglish
FormatMedium: X; Size: pp. 2432-2437
System Entry Date2008 Feb 04

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