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Titolo:
Deep-inelastic scattering in k factorization and the anatomy of the differential gluon structure function of the proton
Autore:
Ivanov, IP; Nikolaev, NN;
Indirizzi:
KFA Julich GmbH, Forschungszentrum, Inst Kernphys Theorie, Julich, GermanyKFA Julich GmbH Julich Germany , Inst Kernphys Theorie, Julich, Germany Russian Acad Sci, Sobolev Inst Math, Siberian Div, Novosibirsk 630090, Russia Russian Acad Sci Novosibirsk Russia 630090 v, Novosibirsk 630090, Russia Novosibirsk State Univ, Novosibirsk 630090, Russia Novosibirsk State UnivNovosibirsk Russia 630090 osibirsk 630090, Russia Russian Acad Sci, LD Landau Theoret Phys Inst, Moscow 117924, Russia Russian Acad Sci Moscow Russia 117924 t Phys Inst, Moscow 117924, Russia
Titolo Testata:
PHYSICS OF ATOMIC NUCLEI
fascicolo: 4, volume: 64, anno: 2001,
pagine: 753 - 774
SICI:
1063-7788(200104)64:4<753:DSIKFA>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
DEUTERON STRUCTURE FUNCTIONS; VECTOR-MESONS; LOW-X; PERTURBATION-THEORY; DIFFRACTIVE DIS; LOW Q(2); HERA; BFKL; QCD; F-2;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
53
Recensione:
Indirizzi per estratti:
Indirizzo: Ivanov, IP KFA Julich GmbH, Forschungszentrum, Inst Kernphys Theorie, Julich, Germany KFA Julich GmbH Julich Germany phys Theorie, Julich, Germany
Citazione:
I.P. Ivanov e N.N. Nikolaev, "Deep-inelastic scattering in k factorization and the anatomy of the differential gluon structure function of the proton", PHYS ATOM N, 64(4), 2001, pp. 753-774

Abstract

The differential gluon structure function of the proton, F(x, Q(2)), introduced by Fadin, Kuraev, and Lipatov in 1975 is extensively used in small-x QCD. We report here the first determination of F(x, Q(2)) from experimentaldata on the small-x proton structure function F-2p(x, q(2)). We give convenient parametrizations for F(x, Q(2)) based partly on the available DGLAP evolution fits (GRV, CTEQ, and MRS) to parton distribution functions and on realistic extrapolations into the soft region. We discuss the impact of soft gluons on various observables. The x dependence of the so-determined F(x,Q(2)) varies strongly with Q(2) and does not exhibit simple Regge properties. Nonetheless, the hard-to-soft diffusion is found to give rise to a viable approximation of the proton structure function F-2p(x, Q(2)) by the softand hard Reege components with intercepts Delta (soft) = 0 and Delta (hard) similar to 0.4. (C) 2001 MAIK "Nauka/Interperiodica".

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Documento generato il 07/04/20 alle ore 22:51:16