Capturing relic neutrinos with {beta}- and double {beta}-decaying nuclei

Journal Article · Mon Nov 09 04:00:00 EST 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3266102· OSTI ID:21325588

Hodak, Rastislav ^[1]; Kovalenko, Sergey ^[2]; Simkovic, Fedor ^[1]

---

1. Department of Nuclear Physics and Biophysics, Comenius University, Mlynska dolina, SK-84248 Bratislava (Slovakia)
2. Departamento de Fisica, Centro de Estudios Subatomicos, y Centro CientiPco-Tecnologico de Valparaiso, Universidad Tecnica Federico Santa Maria, Casilla 110-V, Valparaiso (Chile)

Neutrinos are probably one of the most important structural constituents of the Universe. The Big Bang Theory predicts that the significant component of them is formed by the cosmic neutrino background, an analogues of the big bang relic photons comprising the cosmic microwave background radiation, which has been measured with amazing accuracy. Properties of the relic neutrino background are closely related to the ones of the cosmic microwave radiation. Relic neutrinos pervade space, but their temperature is extremely small, being of the order of 0.1 meV. Although belonging to the most abundant particles of the Universe, the relic neutrinos evade direct detection so far. This is because the low-energy neutrinos interact only very weakly with matter. In this contribution, we explore the feasibility to detect the cosmic neutrino background by means of {beta}-decaying ({sup 3}H and {sup 187}Re) and double beta decaying ({sup 100}Mo) nuclei. In addition, we address the question whether double relic neutrino capture on nuclei can be an obstacle for observation of neutrinoless double {beta}-decay.

• OSTI ID: 21325588
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1180; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCURACY
CAPTURE
COSMIC NEUTRINOS
COSMIC PHOTONS
DOUBLE BETA DECAY
MEV RANGE
MOLYBDENUM 100
NEUTRINO DETECTION
NEUTRINO REACTIONS
RELICT RADIATION
REST MASS
RHENIUM 187
TRITIUM
UNIVERSE