Can one measure the Cosmic Neutrino Background?
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F17%3A00309679" target="_blank" >RIV/68407700:21670/17:00309679 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1142/S0218301317400080" target="_blank" >http://dx.doi.org/10.1142/S0218301317400080</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1142/S0218301317400080" target="_blank" >10.1142/S0218301317400080</a>
Alternative languages
Result language
angličtina
Original language name
Can one measure the Cosmic Neutrino Background?
Original language description
The Cosmic Microwave Background (CMB) yields information about our Universe at around 380,000 years after the Big Bang (BB). Due to the weak interaction of the neutrinos with matter, the Cosmic Neutrino Background (CNB) should give information about a much earlier time of our Universe, around one second after the BB. Probably, the most promising method to see the CNB is the capture of the electron neutrinos from the Background by Tritium, which then decays into <sup>3</sup>He and an electron with the energy of the the Q-value = 18.562keV plus the electron neutrino rest mass. The KArlsruhe TRItium Neutrino (KATRIN) experiment, which is in preparation, seems presently the most sensitive proposed method for measuring the electron antineutrino mass. At the same time, KATRIN can also look by the reaction e(1.95K) +3H <sup>3</sup>He + e-(Q = 18.6keV + m ec2). The capture of the Cosmic Background Neutrinos (CNB) should show in the electron spectrum as a peak by the electron neutrino rest mass above Q. Here, the possibility to see the CNB with KATRIN is studied. A detection of the CNB by KATRIN seems not to be possible at the moment. But KATRIN should be able to determine an upper limit for the local electron neutrino density of the CNB.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10304 - Nuclear physics
Result continuities
Project
<a href="/en/project/LM2015072" target="_blank" >LM2015072: Laboratoire Souterrain de Modane – participation of the Czech Republic</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Modern Physics E
ISSN
0218-3013
e-ISSN
1793-6608
Volume of the periodical
26
Issue of the periodical within the volume
1-2
Country of publishing house
SG - SINGAPORE
Number of pages
10
Pages from-to
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UT code for WoS article
000395110800011
EID of the result in the Scopus database
2-s2.0-85010842193