Measurement of B sup 0 -- B sup 0 mixing using the MARK II at PEP

Conference · Fri Dec 01 00:00:00 EST 1989

OSTI ID:5011820

Porter, F ^[1]

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1. Stanford Linear Accelerator Center, Menlo Park, CA (USA) California Inst. of Tech., Pasadena, CA (USA)

B{sup 0}{bar B}{sup 0} mixing has been observed now by several experiments. The signature is the observation of an excess of same-sign dilepton events in datasets containing semileptonic B decays. Several years ago the MARK II published an upper limit on B{sup 0}{bar B}{sup 0} mixing at E{sub cm} = 29 GeV, using data taken at the e{sup +}e{sup {minus}} storage ring PEP. Here we report on the results of a new analysis with increased statistics, using refined methods with better sensitivity and control of systematic effects. 10 refs., 2 figs., 2 tab.

• Research Organization: Stanford Linear Accelerator Center, Menlo Park, CA (USA); California Inst. of Tech., Pasadena, CA (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: AC03-76SF00515; AC03-81ER40050
• OSTI ID: 5011820
• Report Number(s): SLAC-PUB-5148; CALT-68-1596; CONF-890903-11; ON: DE90005798; TRN: 90-005135
• Resource Relation: Conference: International Europhysics conference on high-energy physics, Madrid (Spain), 7-14 Sep 1989
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BEAUTY PARTICLES
SEMILEPTONIC DECAY
BRANCHING RATIO
LEPTONS
PEP STORAGE RINGS
TRANSVERSE MOMENTUM
DECAY
ELEMENTARY PARTICLES
FERMIONS
LINEAR MOMENTUM
PARTICLE DECAY
STORAGE RINGS
WEAK PARTICLE DECAY
645102* - High Energy Physics- Particle Interactions & Properties-Experimental- Weak Interactions & Properties