Evaluation of high energy natural neutrino experiments

Cowsik, R. ; Pal, Yash ; Tandon, S. N. (1966) Evaluation of high energy natural neutrino experiments Proceedings of the Indian Academy of Sciences, Section A, 63 (4). pp. 217-243. ISSN 0370-0089

PDF - Publisher Version

Official URL: http://www.ias.ac.in/j_archive/proca/63/4/217-243/...

Related URL: http://dx.doi.org/10.1007/BF03049032


The directional intensities of neutrinos of various types produced in the decay of cosmic ray secondaries in the earth's atmosphere have been estimated. The calculated energy spectra are believed to be uncertain by <20% for neutrino energies up to 100 GeV. Using these fluxes and making various assumptions about the behaviour of neutrino cross-section with energy, the energy spectra of neutrino-induced muons at large depths underground have been calculated. It is shown that a cross-section increasing only linearly with energy up to ~100 GeV. would account only for about one-fifth of the preliminary counting rate observed in a recent underground experiment. A more rapid increase in cross-section is indicated somewhere between 10 GeV. and 100 GeV. and this is shown to be quantitatively consistent with the existence of a charged intermediate boson of mass 2 GeV. Mw<5 GeV. The question of detecting high energy neutrino signals from extra-terrestrial sources is briefly discussed.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
ID Code:20678
Deposited On:20 Nov 2010 13:45
Last Modified:17 May 2016 04:57

Repository Staff Only: item control page