V. A. Varlachev, G. N. Dudkin, B. A. Nechaev, F. M. Pen'kov, M. Filipowicz, A. V. Filippov, D. S. Flusova, D. K. Chumakov, E. N. Shuvalov, “Measurement of the $S$-factor of the T($^1$H, $\gamma$)$^4$He reaction at astrophysical energies”, Pis'ma v Zh. Èksper. Teoret. Fiz., 2021, Volume 113, Issue 4,Pages 229

This article is cited in 5 papers

FIELDS, PARTICLES, AND NUCLEI

Measurement of the $S$-factor of the T($^1$H, $\gamma$)$^4$He reaction at astrophysical energies

V. A. Varlachev^a, G. N. Dudkin^a, B. A. Nechaev^a, F. M. Pen'kov^bc, M. Filipowicz^d, A. V. Filippov^e, D. S. Flusova^a, D. K. Chumakov^a, E. N. Shuvalov^a

^a National Research Tomsk Polytechnic University, Tomsk, 634050 Russia
^b Institute of Nuclear Physics, Ministry of Energy, Almaty, 050032 Kazakhstan
^c Al-Farabi Kazakh National University, Almaty, 050040 Kazakhstan
^d Faculty of Energy and Fuels, AGH University of Science and Technologies, Krakow, 30-050 Poland
^e Joint Institute for Nuclear Research, Dubna, Moscow region, 141980 Russia

Abstract: The T($^1$H, $\gamma$)$^4$He reaction has been studied for the first time in the energy range $E_{\text{lab}}=12$–$34\,$keV in the laboratory coordinate system ($E=7.8$–$20.1\,$keV in the center-of-mass system). The study of this reaction is of interest because it is involved in the primary nucleosynthesis of $^4$He and is important for the theory of few-nucleon systems. The reported experiment improves the accuracy of the experimental determination of the $S$-factor of the T($^1$H, $\gamma$)$^4$He reaction by several times. The theoretical calculations of the $S$-factor of the T($^1$H, $\gamma$)$^4$He reaction still differ from the experimental values by a factor of about $2$.

Received: 23.12.2020
Revised: 25.01.2021
Accepted: 25.01.2021

DOI: 10.31857/S123456782104011X