31. The end-of-day hand survey

Iancu, Ramona; Marshall, SR; Irwin, A. G.; Hilson, A. J.W.

doi:10.1097/00006231-199403000-00044

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Enhancement Of Neutrino-nucleon Cross Section1

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2003

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“…A more desirable model would interpolate between the saturation region and the geometric scaling region and have the DGLAP anomalous dimension in the high Q 2 region. An ansatz for the dipole cross section is given in [22] which interpolates between the saturation region and the geometric scaling region and fits the HERA data at low Q 2 [23]. Work is in progress [24] to improve this ansatz by including DGLAP evolution.…”

Section: Enhancement Of Neutrino-nucleon Cross Sectionmentioning

confidence: 99%

Enhancement and suppression of the neutrino-nucleon total cross section at ultrahigh energies

Jalilian‐Marian

2003

Phys. Rev. D

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We argue that high gluon density effects at small x are important for the calculation of ultrahigh energy neutrino-nucleon cross sections due to the phenomenon of geometric scaling. We calculate the cross section for N→X, including high gluon density effects, using the all twist formalism of McLerran and Venugopalan and show that it can be related to the dipole nucleon cross section measured in deep inelastic scattering experiments. For neutrino energies of E ϳ10 12 GeV, the geometric scaling region extends all the way up to Q 2 ϳM W 2 . We show that geometric scaling can lead to an enhancement of the neutrino-nucleon total cross section by an order of magnitude compared to the leading twist cross section and discuss the implications for neutrino observatories. At extremely high energies, gluon saturation effects suppress the neutrino-nucleon total cross section and lead to its unitarization.

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Section: Enhancement Of Neutrino-nucleon Cross Sectionmentioning

confidence: 99%

Enhancement and suppression of the neutrino-nucleon total cross section at ultrahigh energies

Jalilian‐Marian

2003

Phys. Rev. D

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31. The end-of-day hand survey

Cited by 1 publication

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Enhancement and suppression of the neutrino-nucleon total cross section at ultrahigh energies

Enhancement and suppression of the neutrino-nucleon total cross section at ultrahigh energies

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