Possibility to determine the astrophysical<i>S</i>factor for the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Be</mml:mi></mml:mrow><mml:mprescripts/><mml:mrow/><mml:mrow><mml:mn>7</mml:mn></mml:mrow><mml:mrow/><mml:mrow/></mml:mmultiscripts></mml:mrow></mml:math>(<i>p</i>,γ<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mo>)</mml:mo></mml:mrow><mml:mrow><mml:mn>8</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>B radiative capture from analysis of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Be</mml:mi></mml:mrow><mml:mprescripts/><mml:mrow/><mml:mrow><mml:mn>7</mml:mn></mml:mrow><mml:mrow/><mml:mrow/></mml:mmultiscripts></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mo>(</mml:mo></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>He,<i>d</i><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mo>)</mml:mo></mml:mrow><mml:mrow><mml:mn>8</mml:mn></mml:mrow></mml:msup></mml:mrow></mml:math>B reaction
A. M. MukhamedzhanovCyclotron Institute, Texas A&M University, College Station, Texas 77843R. E. TribbleCyclotron Institute, Texas A&M University, College Station, Texas 77843N. K. TimofeyukCyclotron Institute, Texas A&M University, College Station, Texas 77843
ABI
Аннотация
At very low energies of astrophysical interest, the $^{7}\mathrm{Be}$(p,\ensuremath{\gamma}${)}^{8}$B reaction is almost totally peripheral. Consequently, the overall normalization of the cross section for this reaction is defined by the asymptotic normalization coefficient of the bound-state wave function of $^{8}\mathrm{B}$ in the two-body channel $^{7}\mathrm{Be}$+p. The reaction $^{7}\mathrm{Be}$${(}^{3}$He,d${)}^{8}$B is suggested as a tool to measure this asymptotic normalization coefficient thereby allowing one to define the absolute value of the astrophysical factor, ${\mathit{S}}_{17}$(0), for the $^{7}\mathrm{Be}$(p,\ensuremath{\gamma}${)}^{8}$B reaction.
Перевод пока недоступен