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High Energy Physics - Phenomenology

arXiv:hep-ph/0505012 (hep-ph)
[Submitted on 2 May 2005 (v1), last revised 21 Jun 2005 (this version, v3)]

Title:An approach to NLO QCD analysis of the semi-inclusive DIS data with modified Jacobi polynomial expansion method

Authors:A.N. Sissakian, O.Yu. Shevchenko, O.N. Ivanov
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Abstract: It is proposed the modification of the Jacobi polynomial expansion method (MJEM) which is based on the application of the truncated moments instead of the full ones. This allows to reconstruct with a high precision the local quark helicity distributions even for the narrow accessible for measurement Bjorken $x$ region using as an input only four first moments extracted from the data in NLO QCD. It is also proposed the variational (extrapolation) procedure allowing to reconstruct the distributions outside the accessible Bjorken $x$ region using the distributions obtained with MJEM in the accessible region. The numerical calculations encourage one that the proposed variational (extrapolation) procedure could be applied to estimate the full first (especially important) quark moments.
Subjects: High Energy Physics - Phenomenology (hep-ph)
Cite as: arXiv:hep-ph/0505012
  (or arXiv:hep-ph/0505012v3 for this version)
  https://doi.org/10.48550/arXiv.hep-ph/0505012
Journal reference: JETP Lett. 82 (2005) 53; Pisma Zh.Eksp.Teor.Fiz. 82 (2005) 57
Related DOI: https://doi.org/10.1134/1.2056627

Submission history

From: Shevchenko O. Yu. [view email]
[v1] Mon, 2 May 2005 14:55:44 UTC (81 KB)
[v2] Tue, 17 May 2005 13:23:44 UTC (117 KB)
[v3] Tue, 21 Jun 2005 15:32:52 UTC (65 KB)
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