Can one measure the Cosmic Neutrino Background?
- NázevTitle
- Can one measure the Cosmic Neutrino Background?Can one measure the Cosmic Neutrino Background?
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- A. Faessler, R. Hodák, S. Kovalenko, F. Šimkovic
- Klíčová slovaKeywords
- cosmic neutrino background, electron capture, KATRIN, neutrino
- DOIDOI
- 10.1142/S0218301317400080
- Časopis / citaceJournal / citation
- International Journal of Modern Physics E 26(01n02), 1740008 (2017) · ISSN 0218-3013
- RokYear
- 2017
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Podzemní laboratoř LSM (Laboratoire Souterrain de Modane, Francie) - český příspěvek do výzkumné infrastruktury evropského významuUnderground laboratory LSM (Laboratoire Souterrain de Modane, Francie) - Czech contribution to research infrastructure of European level
- CitovánoCited by
- 24 (INSPIRE-HEP)
- Plný text (open access)Full text (open access)
- https://arxiv.org/pdf/1602.03347
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
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 3He 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 3He + 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.
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 3He 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 3He + 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.