Test of the flavor independence of strong interactions
PhysRevD_53_R2271.pdf 128 KB
We present a comparison of the strong couplings of light (u, d, and s), c, and b quarks determined from multijet rates in flavor-tagged samples of hadronic Z0 decays recorded with the SLC Large Detector at the SLAC Linear Collider. Flavor separation on the basis of lifetime and decay multiplicity differences among hadrons containing light, c, and b quarks was made using the SLD precision tracking system. We find αsuds / αsall=0.987±0.027(stat)±0.022(syst)±0.022(theory), αsc / αsall=1.012±0.104±0.102±0.096, and αsb / αsall=1.026±0.041±0.041±0.030.
Physical Review D - Particles, Fields, Gravitation and Cosmology
|date of issued||
American Physical Society
Copyright (c) 1996 American Physical Society.
Graduate School of Advanced Sciences of Matter