1998/09/04 by G. Ricco, S. Simula, Ricco, G. +2
Earth and Planetary Sciences · Physics and Astronomy · #FOS: Physical sciences #Geophysics and Gravity Measurements #High Energy Physics - Phenomenology (hep-ph) #Nuclear Theory (nucl-th) #Nuclear physics research studies #Quantum, superfluid, helium dynamics #hep-ph #nucl-th
paper · pdf · doi:10.48550/arxiv.hep-ph/9809264
to appear in the Proceedings of the International Workshop on "JLab: Physics and Instrumentation with 6-12 GeV Beams", Jefferson Lab (Newport News, USA), June 15-18, 1998
arxiv created 1998/09/04 · openalex publication_date 1998/09/04 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Higher-twist effects in the low-order moments of the longitudinal and transverse structure functions of proton and deuteron have been analyzed using available phenomenological fits of existing data in the Q**2 range between 1 and 20 (GeV/c)**2. Both twist-4 and twist-6 contributions have been determined adopting the Natchmann definition of moments, which allows to disentangle properly target-mass effects. The extraction of the matrix elements of the relevant twist-4 operators, describing quark-quark and quark-gluon correlations, is carried out in case of the second moment. The need of transverse data with better quality for x > 0.5 and Q**2 < 10 (GeV/c)**2 as well as more precise and systematic determinations of the L/T separation make JLab @ 12 GeV a good place to improve our understanding of the non-perturbative structure of hadrons.