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dc.contributor.authorLai, I Chungen
dc.date.accessioned2014-03-14T21:15:29Zen
dc.date.available2014-03-14T21:15:29Zen
dc.date.issued1999-06-18en
dc.identifier.otheretd-070699-205010en
dc.identifier.urihttp://hdl.handle.net/10919/38697en
dc.description.abstractUsing data recorded by the CLEO II detector operating at the Upsilon(4S) resonance at the Cornell Electron Storage Ring, several properties of B mesons are measured using a partially reconstructed tag of the decay mode bar{B0} -> D*+ l- bar{nu}. Using 2.38 fb**{-1} of on-resonance data and the averaged B meson semileptonic branching fraction through inclusive lepton momentum spectrum obtained by previous CLEO analysis, we measure the B0 and B- semileptonic branching fraction to be (10.78 +/- 0.60 +/- 0.69)% and (10.25 +/- 0.57 +/- 0.65)% respectively, which yields the lifetime ratio tau_+/tau_0 = 0.950 +0.117-0.080 +0.091-0.068, assuming the equality of semileptonic partial branching width for bar{B0} and B-. With a larger dataset of 3.1 fb**{-1}, we measured the B0-bar{B0} mixing parameter chi_d to be 0.189 +/- 0.019 +/- 0.006.en
dc.publisherVirginia Techen
dc.relation.haspartlai-intro.pdfen
dc.relation.haspartlai-chapter6.pdfen
dc.relation.haspartlai-appendix.pdfen
dc.relation.haspartlai-chapter1.pdfen
dc.relation.haspartlai-chapter3.pdfen
dc.relation.haspartlai-references.pdfen
dc.relation.haspartlai-chapter5.pdfen
dc.relation.haspartlai-chapter4.pdfen
dc.relation.haspartlai-chapter2.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectMixingen
dc.subjectSemileptonic Decayen
dc.subjectB Mesonen
dc.titleMeasurement of bar{B0} Meson Properties Via Partial Reconstruction of the Decay bar{B0} -> D*+ l- ar{nu}en
dc.typeDissertationen
dc.contributor.departmentPhysicsen
dc.description.degreePh. D.en
thesis.degree.namePh. D.en
thesis.degree.leveldoctoralen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.disciplinePhysicsen
dc.contributor.committeememberChang, Lay Namen
dc.contributor.committeememberHeflin, James R.en
dc.contributor.committeememberPitt, Mark L.en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-070699-205010/en
dc.contributor.committeecochairKinoshita, Kayen
dc.contributor.committeecochairPiilonen, Leo E.en
dc.date.sdate1999-07-06en
dc.date.rdate2000-08-13en
dc.date.adate1999-08-13en


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