A Test of the Flavor Independence of Strong Interactions in e+e- Annihilation at the Z0 Pole

Technical Report · Fri Sep 03 00:00:00 EDT 1999

OSTI ID:6197763

Muller, David

This thesis presents a comparison of the strong coupling of the gluons to light (q_l = u + d + s), c, and b quarks, determined from multijet rates in flavor-tagged samples of approximately 150,000 hadronic Z⁰ decays recorded with the SLC Large Detector at the SLAC Linear Collider between 1993 and 1995. Flavor separation among primary q_l [anti q_l] , c[anti c] and b [anti b] final states was made on the basis of the reconstructed mass of long-lived heavy-hadron decay vertices, yielding tags with high purity and low bias against [>=] 3-jet final states. The data obtained imply no flavor dependence within our sensitivity.

• Research Organization: Stanford Linear Accelerator Center (SLAC), Menlo Park, CA (United States)
• Sponsoring Organization: ER
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 6197763
• Report Number(s): SLAC-R-545; ON: DE00012489
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANNIHILATION
COUPLING
ELECTRON-POSITRON INTERACTIONS
FLAVOR MODEL
GLUONS
PARTICLE DECAY
QUARKS
Z NEUTRAL BOSONS
BASIC INTERACTIONS
BOSONS
COMPOSITE MODELS
DECAY
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
INTERACTIONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
LEPTON-LEPTON INTERACTIONS
MATHEMATICAL MODELS
PARTICLE INTERACTIONS
PARTICLE MODELS
POSTULATED PARTICLES
QUARK MODEL
660000* - Physics- (1992-)