Effect of the neutron lifetime on processes in the early universe
- Авторы: Chechkin A.V.1,2, Ivanchik A.V.1,3, Serebrov A.P.2, Bobashev S.V.1,3
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Учреждения:
- Peter the Great St. Petersburg Polytechnic University
- Petersburg Nuclear Physics Institute
- Ioffe Physical-Technical Institute
- Выпуск: Том 61, № 7 (2016)
- Страницы: 1101-1105
- Раздел: Short Communications
- URL: https://ogarev-online.ru/1063-7842/article/view/197632
- DOI: https://doi.org/10.1134/S1063784216070069
- ID: 197632
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Аннотация
The influence of the neutron lifetime on the abundance of light elements produced during the primordial nucleosynthesis early in the birth of the Universe is considered. Among light elements, namely, D, 3He, 4He, and 7Li, 4He proves to be most sensitive to neutron lifetime τn. Astronomic data on the light element abundance also provide the best accuracy for 4He. The solution of a number of problems discussed in this paper requires improving the accuracy of observations for the 4He abundance and refining the value of τn.
Об авторах
A. Chechkin
Peter the Great St. Petersburg Polytechnic University; Petersburg Nuclear Physics Institute
Автор, ответственный за переписку.
Email: a.4ech89@gmail.com
Россия, Politekhnicheskaya ul. 29, St. Petersburg, 195251; Gatchina, Leningrad oblast, St. Petersburg, 188300
A. Ivanchik
Peter the Great St. Petersburg Polytechnic University; Ioffe Physical-Technical Institute
Email: a.4ech89@gmail.com
Россия, Politekhnicheskaya ul. 29, St. Petersburg, 195251; Politekhnicheskaya ul. 26, St. Petersburg, 194021
A. Serebrov
Petersburg Nuclear Physics Institute
Email: a.4ech89@gmail.com
Россия, Gatchina, Leningrad oblast, St. Petersburg, 188300
S. Bobashev
Peter the Great St. Petersburg Polytechnic University; Ioffe Physical-Technical Institute
Email: a.4ech89@gmail.com
Россия, Politekhnicheskaya ul. 29, St. Petersburg, 195251; Politekhnicheskaya ul. 26, St. Petersburg, 194021
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