Abstract
The most recent detailed data on the unpolarized nucleon structure functions allow a precise determination of higher twist contributions. Quark-quark correlations induced by colour forces are expected to be a natural explanation for such effects; indeed, a quark-diquark picture of the nucleon, previously introduced in the description of several exclusive processes at intermediateQ 2 values, is found to model the proton higher twist data with great accuracy. The resulting parameters are consistent with the diquark properties suggested by other experimental and theoretical analyses.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
P. Amaudruz et al.: (New Muon Collaboration), Phys. Lett. B294 (1992) 120; B295 (1992) 159
P. Amaudruz et al.: (New Muon Collaboration), Nucl. Phys. B371 (1992) 3
A.C. Benvenuti et al.: (BCDMS Collaboration), Phys. Lett. B223 (1989) 485; B237 (1990) 592
L.W. Whitlow et al.: Phys. Lett. B250 (1990) 193; B282 (1992) 475
M. Virchaux, A. Milsztajn: Phys. Lett B274 (1992) 221
S. Choi, T. Hatsuda, Y. Koike, Su H. Lee: Phys. Lett. B312 (1993) 351
For a Review on Diquarks see, e.g., M. Anselmino, S. Ekelin, S. Fredriksson, D.B. Lichtenberg, E. Predazzi: Rev. Mod. Phys. 65 (1993) 1199
S. Fredriksson, M. Jändel, T. Larsson: Z. Phys. C14 (1982) 35; 19 (1983) 53; S. Ekelin and S. Fredriksson: Phys. Lett. 162B (1985) 373
J.J. Dugne, P. Tavernier: Z. Phys. C59 (1993) 333; for a more detailed and general treatment see P. Tavernier, Essai de determination des fonctions de structure des nucleons dans l’hipothèse de l’existence de diquarks, Thèse de Doctorat (PCCF T 9207), Universitè Blaise Pascal (1992)
M. Anselmino, F. Caruso, E. Leader, J. Soares: Z. Phys. C48 (1990) 689
M. Anselmino, F. Caruso, S. Forte: Phys. Rev. D44 (1991) 1438
R. Jacob, P. Kroll, M. Schürmann, W. Schweiger: Z. Phys. A347 (1993) 109
M.I. Pavkovič: Phys. Rev. D13 (1976) 2128
A.I. Vainshtein, V.I. Zakharov: Phys. Lett. B 72, 368 (1978)
A. Milsztajn, private communication.
For further details see A. Penna Firme, Da contribuição dos diquarks à descrição de efeitos de “higher twist” observados no espalhamento profundamente inelástico, Thesis, CBPF (1994)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Anselmino, M., Caruso, F., de Mello Neto, J.R.T. et al. Modeling higher twist contributions to deep inelastic scattering with diquarks. Z. Phys. C - Particles and Fields 71, 625–629 (1996). https://doi.org/10.1007/BF02907023
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF02907023