Measurement of quark fragmentation fractions in the production of strange and light mesons in collisions at TeV
Collaboration
14 pages
Published in:
- Phys.Rev.D 60 (1999) 092005
Report number:
- FERMILAB-PUB-99-413-CD
Experiments:
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Abstract: (APS)
A new technique to measure the ratio of b quark fragmentation fractions in pp¯ collisions is described. Using a 70−pb−1 sample of low-mass dimuon trigger data recorded with the Collider Detector at Fermilab, we identify B mesons by observing the double semileptonic decays b→cμX with c→sμX. By counting the numbers of K*(892)0, K*(892)+, and φ(1020) mesons produced in association with these muon pairs, we measure the ratio of strange to nonstrange B meson production to be fs/(fu+fd)=[21.0±3.6(stat)−3.0+3.8(syst)]%. This measurement is the most precise available from hadron collisions to date. Limits on the branching fractions of semileptonic charm meson decays with K1(1270), K1*(1410), and K2*(1430) mesons in the final state are also obtained.- anti-p p: colliding beams
- B: hadroproduction
- B: semileptonic decay
- B: cascade decay
- muon: pair production
- K*(892): associated production
- Phi(1020): associated production
- bottom
- quark: fragmentation
- charmed meson: semileptonic decay
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