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Nuclear Physics B176 (1980) 373-378 0 North-Holland Publishing Company
 

Summary: Nuclear Physics B176 (1980) 373-378
0 North-Holland Publishing Company
HEAVY QUARKS IN ELECT'ROPRODUCTION*
L. F. ABBOTT'
Department of Physics, Brat&is University, Waltham, Massachuseiis 02254, USA
Mark B. WISE*
Stanford Linear Accelerator Center, Stanford Uniwrsi@, Stanford California 94305, USA
Received 11 July 1980
The idea of an effective light-particle field theory is used to analyze the effects of heavy
quarks in electroproduction. The b-quark distribution is predicted at large Qz and a systematic
treatment of the changing number of quark flavors in a QCD analysis of F2 is presented.
The concept of an effective light-particle field theory has proven useful for
calculations in grand unified theories [l] and in non-leptonic weak decays [2]. In
this paper the effective field theory approach is applied to compute heavy particle
effects in deep inelastic scattering. This approach was first discussed by Witten
Pal **in a moment analysis of charm quark effects. Here we will discuss b- and t-
quarks using an equivalent but more intuitive method which involves dealing
directly with the structure functions themselves. We will derive, using the leading-
logarithmic approximation, predictions for the b-quark momentum distribution at
Q2>mt utilizing data from the region mf < Q2 < mi. These predictions are

  

Source: Abbott, Laurence - Center for Neurobiology and Behavior & Department of Physiology and Cellular Biophysics, Columbia University

 

Collections: Biology and Medicine