Electroweak higherorder effects and theoretical uncertainties in deepinelastic neutrino scattering
Abstract
A previous calculation of electroweak O({alpha}) corrections to deepinelastic neutrino scattering, as e.g. measured by NuTeV and NOMAD, is supplemented by higherorder effects. In detail, we take into account universal twoloop effects from {delta}{alpha} and {delta}{rho} as well as higherorder finalstate photon radiation off muons in the structure function approach. Moreover, we make use of the recently released O({alpha})improved parton distributions MRST2004QED and identify the relevant QED factorization scheme, which is DISlike. As a technical byproduct, we describe slicing and subtraction techniques for an efficient calculation of a new type of real corrections that are induced by the generated photon distribution. A numerical discussion of the higherorder effects suggests that the remaining theoretical uncertainty from unknown electroweak corrections is dominated by nonuniversal twoloop effects and is of the order 0.0003 when translated into a shift in sin{sup 2}{theta}{sub W}=1M{sub W}{sup 2}/M{sub Z}{sup 2}. The O({alpha}) corrections implicitly included in the parton distributions lead to a shift of about 0.0004.
 Authors:
 PaulScherrerInstitut, Wuerenlingen und Villigen CH5232 Villigen PSI (Switzerland)
 MaxPlanckInstitut fuer Physik (WernerHeisenbergInstitut) D80805 Munich (Germany)
 Publication Date:
 OSTI Identifier:
 20713808
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physical Review. D, Particles Fields; Journal Volume: 72; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevD.72.093002; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CORRECTIONS; DEEP INELASTIC SCATTERING; DISTRIBUTION; FACTORIZATION; MUONS; NEUTRINO REACTIONS; PHOTONS; QUANTUM ELECTRODYNAMICS; QUARK MODEL; QUARKS; STRUCTURE FUNCTIONS
Citation Formats
Diener, K.P.O., Dittmaier, S., and Hollik, W.. Electroweak higherorder effects and theoretical uncertainties in deepinelastic neutrino scattering. United States: N. p., 2005.
Web. doi:10.1103/PhysRevD.72.093002.
Diener, K.P.O., Dittmaier, S., & Hollik, W.. Electroweak higherorder effects and theoretical uncertainties in deepinelastic neutrino scattering. United States. doi:10.1103/PhysRevD.72.093002.
Diener, K.P.O., Dittmaier, S., and Hollik, W.. Tue .
"Electroweak higherorder effects and theoretical uncertainties in deepinelastic neutrino scattering". United States.
doi:10.1103/PhysRevD.72.093002.
@article{osti_20713808,
title = {Electroweak higherorder effects and theoretical uncertainties in deepinelastic neutrino scattering},
author = {Diener, K.P.O. and Dittmaier, S. and Hollik, W.},
abstractNote = {A previous calculation of electroweak O({alpha}) corrections to deepinelastic neutrino scattering, as e.g. measured by NuTeV and NOMAD, is supplemented by higherorder effects. In detail, we take into account universal twoloop effects from {delta}{alpha} and {delta}{rho} as well as higherorder finalstate photon radiation off muons in the structure function approach. Moreover, we make use of the recently released O({alpha})improved parton distributions MRST2004QED and identify the relevant QED factorization scheme, which is DISlike. As a technical byproduct, we describe slicing and subtraction techniques for an efficient calculation of a new type of real corrections that are induced by the generated photon distribution. A numerical discussion of the higherorder effects suggests that the remaining theoretical uncertainty from unknown electroweak corrections is dominated by nonuniversal twoloop effects and is of the order 0.0003 when translated into a shift in sin{sup 2}{theta}{sub W}=1M{sub W}{sup 2}/M{sub Z}{sup 2}. The O({alpha}) corrections implicitly included in the parton distributions lead to a shift of about 0.0004.},
doi = {10.1103/PhysRevD.72.093002},
journal = {Physical Review. D, Particles Fields},
number = 9,
volume = 72,
place = {United States},
year = {Tue Nov 01 00:00:00 EST 2005},
month = {Tue Nov 01 00:00:00 EST 2005}
}

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