Screening effects in the ultra-high energy neutrino interactions
We study possible saturation effects in the total crosssections describing the interaction of ultra-high energy neutrinos with nucleons. This analysis is performed within two approaches, i.e., within the Golec-Biernat-Wüsthoff saturation model and within the scheme unifying the DGLAP and BFKL dynami...
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Published in | The European physical journal. C, Particles and fields Vol. 29; no. 4; pp. 521 - 530 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Heidelberg
Springer Nature B.V
01.08.2003
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Subjects | |
Online Access | Get full text |
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Summary: | We study possible saturation effects in the total crosssections describing the interaction of ultra-high energy neutrinos with nucleons. This analysis is performed within two approaches, i.e., within the Golec-Biernat-Wüsthoff saturation model and within the scheme unifying the DGLAP and BFKL dynamics incorporating non-linear screening effects which follow from the Balitzki-Kovchegov equation. The structure functions in both approaches are constrained by HERA data. It is found that screening effects affect the extrapolation of the neutrino-nucleon total cross-sections to ultra-high neutrino energies \(E_{\nu}\) and reduce their magnitude by a factor equal to about 2 at \(E_{\nu} \sim 10^{12}\) GeV. This reduction becomes amplified by nuclear shadowing in the case of the neutrino-nucleus cross-sections and an approximate estimate of this effect is performed. |
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ISSN: | 1434-6044 1434-6052 |
DOI: | 10.1140/epjc/s2003-01236-y |