TY - JOUR
T1 - Anomalous evolution of nonsinglet nucleon structure functions
AU - Ball, Richard D.
AU - Barone, Vincenzo
AU - Forte, Stefano
AU - Genovese, Marco
N1 - Funding Information:
I On leave from a Royal Society University Research Fellowship. 2 On leave from INFN, Sezione di Torino, Italy
PY - 1994/6/23
Y1 - 1994/6/23
N2 - We calculate the scale dependence of nonsinglet nucleon structure functions. Due to anomalous axial symmetry breaking alarge flavour asymmetry of the quark-antiquark sea is generated nonperturbatively. This produces a strong scale dependenceof the nonsinglet structure function in an intermediate range of Q2. Evolving nonperturbatively a pure valence distributionfrom an infrared scale we can thus compute F2p-F2n as measured by the NMC, and give detailed predictions for its Q2dependence at fixed x. We also compare our results with Drell-Yan data.
AB - We calculate the scale dependence of nonsinglet nucleon structure functions. Due to anomalous axial symmetry breaking alarge flavour asymmetry of the quark-antiquark sea is generated nonperturbatively. This produces a strong scale dependenceof the nonsinglet structure function in an intermediate range of Q2. Evolving nonperturbatively a pure valence distributionfrom an infrared scale we can thus compute F2p-F2n as measured by the NMC, and give detailed predictions for its Q2dependence at fixed x. We also compare our results with Drell-Yan data.
UR - http://www.scopus.com/inward/record.url?scp=0000514651&partnerID=8YFLogxK
U2 - 10.1016/0370-2693(94)91096-0
DO - 10.1016/0370-2693(94)91096-0
M3 - Article
SN - 0370-2693
VL - 329
SP - 505
EP - 513
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 4
ER -