Measurement of [ital b] quark fragmentation fractions in the production of strange and light [ital B] mesons in p[bar p] collisions at [radical] (s) =1. 8 TeV
- Argonne National Laboratory, Argonne, Illinois 60439 (United States)
- Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40127 Bologna (Italy)
- Brandeis University, Waltham, Massachusetts 02254 (United States)
- University of California at Los Angeles, Los Angeles, California 90024 (United States)
- University of Chicago, Chicago, Illinois 60637 (United States)
- Duke University, Durham, North Carolina 27708 (United States)
A new technique to measure the ratio of [ital b] quark fragmentation fractions in p[bar p] collisions is described. Using a 70-pb[sup [minus]1] sample of low-mass dimuon trigger data recorded with the Collider Detector at Fermilab, we identify [ital B] mesons by observing the double semileptonic decays b[r arrow]c[mu]X with c[r arrow]s[mu]X. By counting the numbers of K[sup [asterisk]](892)[sup 0], K[sup [asterisk]](892)[sup +], and [phi](1020) mesons produced in association with these muon pairs, we measure the ratio of strange to nonstrange [ital B] meson production to be f[sub s]/(f[sub u]+f[sub d])=[21.0[plus minus]3.6(stat)[sub [minus]3.0][sup +3.8](syst)][percent]. This measurement is the most precise available from hadron collisions to date. Limits on the branching fractions of semileptonic charm meson decays with K[sub 1](1270), K[sub 1][sup [asterisk]](1410), and K[sub 2][sup [asterisk]](1430) mesons in the final state are also obtained. [copyright] [ital 1999] [ital The American Physical Society]
- OSTI ID:
- 6033295
- Journal Information:
- Physical Review, D, Vol. 60:9; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
Measurement of b quark fragmentation fractions in the production of strange and light B mesons in p{ovr p} collisions at {radical ovr s} = 1.8 TeV.
Ratios of bottom meson branching fractions involving {ital J}/{psi} mesons and determination of {ital b} quark fragmentation fractions
Related Subjects
B MESONS
B QUARKS
BRANCHING RATIO
FERMILAB COLLIDER DETECTOR
KAONS
MUONS
PHI-1020 MESONS
PROTON-ANTIPROTON INTERACTIONS
SEMILEPTONIC DECAY
STRANGE MESONS
BARYON-BARYON INTERACTIONS
BEAUTY MESONS
BEAUTY PARTICLES
BOSONS
DECAY
ELEMENTARY PARTICLES
FERMIONS
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
LEPTONS
MESONS
NUCLEON-ANTINUCLEON INTERACTIONS
PARTICLE DECAY
PARTICLE INTERACTIONS
PSEUDOSCALAR MESONS
QUARKONIUM
QUARKS
STRANGE PARTICLES
STRANGEONIUM
VECTOR MESONS
WEAK PARTICLE DECAY
662340* - Hadron Interactions- (1992-)
662440 - Properties of Other Particles Including Hypothetical Particles- (1992-)