Calculation of the nuclear vertex constant (asymptotic normalization coefficient) for the virtual decay 6Li → α + d on the basis of the three-body model and application of the result in describing the astrophysical nuclear reaction d(α, γ)6Li at ultralow energies

Autor:	M. M. Nishonov, S. B. Igamov, L. D. Blokhintsev, R. Yarmukhamedov
Rok vydání:	2006
Předmět:	Nuclear reaction Physics Nuclear and High Energy Physics Faddeev equations Isotopes of lithium Binding energy Neutron Alpha particle Atomic physics Wave function Nucleon Atomic and Molecular Physics and Optics
Zdroj:	Physics of Atomic Nuclei. 69:433-444
ISSN:	1562-692X 1063-7788
DOI:	10.1134/s1063778806030069
Popis:	Within the (α, n, p) three-body model, the s-wave 6Li → α + d vertex constant G01 and the asymptotic normalization coefficient C01 (these two quantities are proportional to each other) for the wave function describing the 6Li nucleus in the α + d channel are calculated by solving Faddeev equations for various sets of nucleon-nucleon and αN potentials. The resulting values of G01 and C01 are used to calculate the astrophysical factor S(E) for the radiative-capture reaction d(α, γ)6Li at energies in the range E = 0–600 keV. The calculated values of G01 and C01 appear to be sensitive to the form of the pair potentials used. It is shown that, upon correctly taking into account the contributions of the E2 and E1 multipolarities, the values of S(E) in the region E < 150 keV are determined primarily by the values of C01 and of the 6Li binding energy in the α + d channel.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2dfc37d770d13f9d0759c15a18fa1061 https://doi.org/10.1134/s1063778806030069 Zobrazit plný text záznamu Plný text ve formátu PDF