Cosmic thermal neutrino background: Can it be detected? |
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| Authors: | Pijushpani Bhattacharjee |
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| Institution: | (1) Laboratory for High Energy Astrophysics, Code 661, NASA/Goddard Space Flight Center, 20771 Greenbelt, MD, USA |
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| Abstract: | The detection of the Cosmic Thermal Neutrino Background (CTNB) would provide the “cleanest” evidence for the hot big bang
model of the early Universe. I discuss some recent thoughts on the possibility of detecting the CTNB (especially if neutrinos
have a small mass of ~ few eV) by looking for certain CTNB-induced features in the extremely high energy (E ≳ 1020 eV) cosmic neutrino spectrum that may become measurable in the future by some of the large-area extensive air-shower detectors
being built for detecting extremely high energy cosmic rays.
NAS/NRC Senior Research Associate on sabbatical leave from Indian Institute of Astrophysics, Bangalore 560 034, India. |
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| Keywords: | Cosmic neutrino background cosmic rays massive neutrino topological defects |
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