PRODUCTION OF HIGH-ENERGY COSMIC NEUTRINOS IN P-GAMMA AND N-GAMMA SCATTERING .2. ARBITRARY SPECTRA OF NUCLEONS AND PHOTONS

被引:5
作者
BEREZINSKY, VS
GAZIZOV, AZ
机构
[1] MOSCOW NUCL RES INST, MOSCOW, RUSSIA
[2] BI STEPANOV INST PHYS, 220602 MINSK, BELARUS
关键词
D O I
10.1103/PhysRevD.47.4217
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We calculate the probability of nu(i)-neutrino emission, dsigma(nu)(E(c),x(nu))/dx(nu), for a collision of a proton (neutron) of energy E(p) with a photon of energy omega << E(p). This probability is shown to be a function of the total energy in the c.m. system, E(c), and x(nu) = E(nu)/E(p). For the process of neutrino generation we take into account the production and subsequent decay of pi+/- mesons (including production through the DELTA resonance), K+/- mesons, rho0 mesons, and DELTA++ resonances. In the case when these particles decay without considerable energy losses, dsigma(nu)(E(c),x(nu))/dx(nu) can be phenomenologically treated as the usual cross section. In particular, a Monte Carlo simulation for the proton propagation through the photon gas becomes relatively simple. The cross sections are presented in a numerical form together with the E(c),x(nu) domain, where they have nonzero values.
引用
收藏
页码:4217 / 4225
页数:9
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