1994/02/14 by Ariel Zhitnitsky, A. Zhitnitsky, Zhitnitsky, A.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9402280
LATEX, 10 pgs. The basic, starting point of the entire approach is clarified. All numerical results are the same
openalex publication_date 1994/02/14 · arxiv created 1994/09/08 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We discuss the nonleading, ``soft" contribution to the pion form factor at intermediate momentum transfer within operator product expansion approach. We argue, that the corresponding contribution can temporarily \bf simulate the leading twist behavior in the extent region of Q2:~~3 GeV2≤ Q2≤ 35 GeV2 , where Q2 F(Q2)∼ const. Such a mechanism, if it is correct, would be an explanation of the phenomenological success of the dimensional counting rules (which theoretically correspond to the keeping of the asymptotically leading terms only) at available, very modest Q2. The relation with quark model calculation is also discussed.