Cross Section of Neutrino Absorption by the Gallium-71 Nucleus

• Published in: Physics of atomic nuclei Vol. 83; no. 11; pp. 1549 - 1552
• Main Author: Semenov, S. V.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-12-2020; Springer; Springer Nature B.V
• Subjects: Absorption; Charge exchange; Gallium; Germanium; Mathematical Modeling in Nuclear Technologies; Neutrinos; Nuclear cross sections; Particle and Nuclear Physics; Physics; Physics and Astronomy; charge-exchange reaction; artificial neutrino source; neutrino absorption cross section
• ISSN: 1063-7788; 1562-692X
• DOI: 10.1134/S1063778820100221

The cross sections of neutrino absorption by the gallium-71 nucleus are obtained for neutrinos from artificial
37
Ar,
51
Cr, and
65
Zn sources. The calculations rely on the new measurement of the energy threshold of this absorption reaction, and contributions of germanium-71 excited states to the total cross section are estimated by invoking the data on the
71
Ga(
3
He,t)
71
Gе charge-exchange reaction. The results are important for searches for sterile neutrinos in calibration experiments.