Failure of the collinear expansion in calculation of the induced gluon emission

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dc.creatorAurenche, P.
dc.creatorZakharov, B. G.
dc.creatorZaraket, H.
dc.date2008-04-27
dc.date.accessioned2026-07-07T12:43:10Z
dc.date.available2026-07-07T12:43:10Z
dc.descriptionWe demonstrate that the collinear expansion fails in the case of gluon emission from a fast quark produced in $eA$ DIS. In this approximation the N=1 rescattering contribution to the gluon spectrum vanishes. We show that the higher-twist approach by Guo, Wang and Zhang [4,5] based on the collinear expansion is wrong. The nonzero gluon spectrum obtained in [4,5] is a consequence of unjustified neglecting some important terms in the collinear expansion.
dc.description10 pages, 2 eps figures
dc.identifierhttps://arxiv.org/abs/0804.4282
dc.identifierhttp://arxiv.org/abs/0804.4282
dc.identifierJETP Lett.87:605-610,2008
dc.identifierdoi:10.1134/S0021364008110039
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/220327
dc.subjectHigh Energy Physics - Phenomenology
dc.titleFailure of the collinear expansion in calculation of the induced gluon emission
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