A Preliminary measurement of the gluon splitting rate into b bar[b] pairs in hadronic Z0 decays

Technical Report · Thu Jun 10 04:00:00 EDT 1999

OSTI ID:6241186

Abe, Toshinori

We present a measurement of the rate of gluon splitting into bottom quarks, g --> b anti-b, in hadronic Z⁰ decays collected by SLD from 1996 to 1998. The analysis was performed by looking for secondary bottom production in 4-jet events of any primary avor. A topological vertex mass technique was used to tag the two jets with the smallest angle between them as b/anti-b. We obtained a rate of g --> b anti-b per hadronic event to be (3.07 0.71(stat:) 0.66(syst:)) 10 sup3; (preliminary).

• Research Organization: Stanford Linear Accelerator Center (SLAC), Menlo Park, CA (United States)
• Sponsoring Organization: ER
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 6241186
• Report Number(s): SLAC-PUB-8169; ON: DE00010211
• Country of Publication: United States
• Language: English

Related Subjects

660000* -- Physics-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
B QUARKS
BEAUTY PARTICLES
BOSONS
DECAY
ELEMENTARY PARTICLES
FERMIONS
GLUONS
HADRONIC PARTICLE DECAY
INTERACTIONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
PAIR PRODUCTION
PARTICLE DECAY
PARTICLE PRODUCTION
POSTULATED PARTICLES
QUARKS
Z NEUTRAL BOSONS