Ultra-high energy neutrino-nucleon scattering and gluon saturation
- Natural Sciences Department, Baruch College, 17 Lexington Ave., New York, NY 10010, USA; CUNY Graduate Center, 365 Fifth Avenue, New York, NY 10016, USA; DOE/OSTI
Ultra-high energy neutrinos are an enigma; among their many poorly understood aspects are their origins and how they interact with nucleons when they reach the Earth. Due to the hard scale ([Formula: see text]) involved in neutrino-nucleon scattering and for a large range of neutrino energies, it is appropriate to describe the target nucleon in terms of its partons — quarks and gluons — and their evolution with [Formula: see text] as governed by the Dokshitzer–Gribov–Lipatov–Altarelli–Parisi (DGLAP) evolution equations of perturbative Quantum ChromoDynamics (pQCD). Nevertheless, at the highest neutrino energies, the scattering cross-section is dominated by the contribution of small [Formula: see text] gluons of the target where one expects DGLAP evolution equations to break down due to high gluon density effects (gluon saturation). Here, we give a brief overview of gluon saturation physics in QCD and its effects on ultra-high energy neutrino-nucleon (nucleus) scattering cross-section.
- Research Organization:
- City Univ. of New York (CUNY), NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- SC0002307
- OSTI ID:
- 1610686
- Journal Information:
- International Journal of Modern Physics E, Journal Name: International Journal of Modern Physics E Journal Issue: 12 Vol. 27; ISSN 0218-3013
- Publisher:
- World Scientific
- Country of Publication:
- United States
- Language:
- English
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journal | March 1994 |
Handbook of perturbative QCD
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journal | January 1995 |
Neutrino interactions at ultrahigh energies
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journal | September 1998 |
Semihard processes in QCD
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journal | November 1983 |
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