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Titolo:
On Big Bang relics, the neutrino mass and the spectrum of cosmic rays
Autore:
Wigmans, R;
Indirizzi:
Texas Tech Univ, Dept Phys, Lubbock, TX 79409 USA Texas Tech Univ LubbockTX USA 79409 iv, Dept Phys, Lubbock, TX 79409 USA
Titolo Testata:
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
, volume: 85, anno: 2000,
pagine: 305 - 310
SICI:
0920-5632(200005)85:<305:OBBRTN>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
ENERGY-SPECTRUM;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
10
Recensione:
Indirizzi per estratti:
Indirizzo: Wigmans, R Texas Tech Univ, Dept Phys, POB 1051, Lubbock, TX 79409 USA Texas Tech Univ POB 1051 Lubbock TX USA 79409 ock, TX 79409 USA
Citazione:
R. Wigmans, "On Big Bang relics, the neutrino mass and the spectrum of cosmic rays", NUCL PH B-P, 85, 2000, pp. 305-310

Abstract

It is shown that high-energy features of the cosmic ray spectrum, in particular the kink around 4 PeV and the corresponding change in spectral index,may be explained from interactions between highly energetic cosmic protonsand relic Big Bang antineutrinos, if the latter have a rest mass of about 0.4 eV/c(2). This explanation is supported by experimental data from extensive air-shower experiments, and in particular by the observation (Fly's Eye) of a second kink around 300 PeV, and by the abrupt change in the chemicalcomposition of the cosmic ray spectrum that occurs at that energy. Both facts follow naturally from our theory, which predicts additional verifiable features of the cosmic ray spectrum in the few-PeV region, e.g. an abrupt decrease in the p/alpha ratio.

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Documento generato il 04/12/20 alle ore 01:09:43