Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
Volume 88B,number 1,2 PHYSICSLETTERS 3 December 1979 DIQUARK CONTRIBUTIONS TO SCALING VIOLATIONS AND TO OL/eT ~
 

Summary: Volume 88B,number 1,2 PHYSICSLETTERS 3 December 1979
DIQUARK CONTRIBUTIONS TO SCALING VIOLATIONS AND TO OL/eT ~
L.F. ABBOTT, E.L. BERGER 1, R. BLANKENBECLER and G.L. KANE 2
Stanford LinearAccelerator Center,Stanford University,Stanford, CA 94305, USA
Received 11 June 1979
Arguments for significant dynamical diquark substructure in baryons are reviewed. If present, integer-spin diquarks will
absorb longitudinally polarized currents resulting in a relatively large value of R = al.JaT in certain kinematic regions of
deep-inelastic reactions. We provide simple parametrizations for this higher-twist contribution to structure functions and to
R. We present fits to the x and Q2 dependences of SLAC-MIT data on electroproduction. Further tests are suggested, and
implications are discussed for the interpretation of R in perturbative QCD.
1. Introduction. Our purpose is to discuss a simple
model for R = OL/OT in deep-inelastic lepton scattering
processes. The model yields a relation between R and
scaling violations which is different from that in
standard perturbative quantum chromodynamics
(QCD). If currents are absorbed by elementary spin
one-half constituents of hadrons, and if transverse mo-
menta are neglected, then oL is expected to be essen-
tially zero. Contributions to R from kinematical and
constituent transverse momentum effects, both from

  

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

 

Collections: Biology and Medicine