Ultrahigh energy neutrino scattering

Journal Article · Sat Mar 01 04:00:00 EST 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.77.053007· OSTI ID:21249690

Berger, Edmond L ^[1]; Block, Martin M ^[2]; McKay, Douglas W ^[3]; Tan, C -I ^[4]

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1. High Energy Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
2. Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208 (United States)
3. Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045 (United States)
4. Physics Department, Brown University, Providence, Rhode Island 02912 (United States)

Estimates are made of ultrahigh energy neutrino cross sections based on an extrapolation to very small Bjorken x of the logarithmic Froissart dependence in x shown previously to provide an excellent fit to the measured proton structure function F{sub 2}{sup p}(x,Q{sup 2}) over a broad range of the virtuality Q{sup 2}. Expressions are obtained for both the neutral current and the charged current cross sections. Comparison with an extrapolation based on perturbative QCD shows good agreement for energies where both fit data, but our rates are as much as a factor of 10 smaller for neutrino energies above 10{sup 9} GeV, with important implications for experiments searching for extragalactic neutrinos.

• OSTI ID: 21249690
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 5 Vol. 77; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHARGED CURRENTS
COMPARATIVE EVALUATIONS
COSMIC NEUTRINOS
CROSS SECTIONS
EXTRAPOLATION
GEV RANGE
NEUTRAL CURRENTS
NEUTRINOS
PERTURBATION THEORY
PROTONS
QUANTUM CHROMODYNAMICS
SCATTERING
SIMULATION
STRUCTURE FUNCTIONS