TY - GEN
T1 - High energy neutrino emission from gamma-ray bursts
AU - Murase, Kohta
AU - Nagataki, Shigehiro
PY - 2007
Y1 - 2007
N2 - In the standard model of GRBs, protons can be accelerated as well as electrons. Through the photomeson reaction, such protons can produce high energy neutrinos, which may be detected by large Cherenkov detectors such as IceCube. We have carried a systematic and much more thorough calculation than past work analyses of this neutrino emission to determine the high energy neutrino background from GRBs. By executing the Monte Carlo simulation kit Geant4, we can take account of pion-multiplicity and proton-inelasticity, and investigate those effects. We also find that the obtained neutrino background can be comparable with the prediction of Waxman & Bahcall without supposing the enough large nonthermal baryon loading factor necessary for the assumption that GRBs are the main sources of UHECRs. We will discuss the constraints on the nonthermal baryon-loading factor and the effects of magnetic fields.
AB - In the standard model of GRBs, protons can be accelerated as well as electrons. Through the photomeson reaction, such protons can produce high energy neutrinos, which may be detected by large Cherenkov detectors such as IceCube. We have carried a systematic and much more thorough calculation than past work analyses of this neutrino emission to determine the high energy neutrino background from GRBs. By executing the Monte Carlo simulation kit Geant4, we can take account of pion-multiplicity and proton-inelasticity, and investigate those effects. We also find that the obtained neutrino background can be comparable with the prediction of Waxman & Bahcall without supposing the enough large nonthermal baryon loading factor necessary for the assumption that GRBs are the main sources of UHECRs. We will discuss the constraints on the nonthermal baryon-loading factor and the effects of magnetic fields.
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U2 - 10.1142/9789812708342_0033
DO - 10.1142/9789812708342_0033
M3 - Conference contribution
AN - SCOPUS:84894311219
SN - 9812700102
SN - 9789812700100
T3 - Energy Budget in the High Energy Universe - Proceedings of the International Workshop
SP - 311
EP - 314
BT - Energy Budget in the High Energy Universe - Proceedings of the International Workshop
PB - World Scientific Publishing Co. Pte Ltd
T2 - International Workshop on Energy Budget in the High Energy Universe
Y2 - 22 February 2006 through 24 February 2006
ER -