Study of the 7Be(d,3He)6Li* reaction at 5 MeV/u

Sk M. Ali; D. Gupta; K. Kundalia; S. Maity; Swapan K. Saha; O. Tengblad; J.D. Ovejas; A. Perea; I. Martel; J. Cederkall; J. Park; A.M. Moro

Physics Letters B (Jun 2024)

Study of the 7Be(d,3He)6Li* reaction at 5 MeV/u

Sk M. Ali,
D. Gupta,
K. Kundalia,
S. Maity,
Swapan K. Saha,
O. Tengblad,
J.D. Ovejas,
A. Perea,
I. Martel,
J. Cederkall,
J. Park,
A.M. Moro

Affiliations

Sk M. Ali: Department of Physical Sciences, Bose Institute, EN 80, Sector V, Bidhannagar, Kolkata 700091, India
D. Gupta: Department of Physical Sciences, Bose Institute, EN 80, Sector V, Bidhannagar, Kolkata 700091, India; Corresponding author.
K. Kundalia: Department of Physical Sciences, Bose Institute, EN 80, Sector V, Bidhannagar, Kolkata 700091, India
S. Maity: Department of Physical Sciences, Bose Institute, EN 80, Sector V, Bidhannagar, Kolkata 700091, India
Swapan K. Saha: Department of Physical Sciences, Bose Institute, EN 80, Sector V, Bidhannagar, Kolkata 700091, India
O. Tengblad: Instituto de Estructura de la Materia − CSIC, Serrano 113 bis, ES-28006 Madrid, Spain
J.D. Ovejas: Instituto de Estructura de la Materia − CSIC, Serrano 113 bis, ES-28006 Madrid, Spain
A. Perea: Instituto de Estructura de la Materia − CSIC, Serrano 113 bis, ES-28006 Madrid, Spain
I. Martel: University of Huelva, Avenida Fuerzas Armadas sin numero Campus “El Carmen”, 21007, Huelva, Spain
J. Cederkall: Department of Physics, Lund University, Box 118, SE-221 00 Lund, Sweden
J. Park: Department of Physics, Lund University, Box 118, SE-221 00 Lund, Sweden
A.M. Moro: Departamento de Física Atómica, Molecular y Nuclear, Facultad de Física, Universidad de Sevilla, Apartado 1065, E-41080 Sevilla, Spain

Journal volume & issue: Vol. 853
p. 138673

Abstract

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The measurement of the 7Be(d,3He)6Li* transfer cross section at 5 MeV/u is carried out. The population of the 2.186 MeV excited state of 6Li in this reaction channel is observed for the first time. The experimental angular distributions have been analyzed in the finite range DWBA and coupled-channel frameworks. The effect of the 7Be(d,3He)6Li reaction on both the 6Li and 7Li abundances are investigated at the relevant big-bang nucleosynthesis energies. The excitation function is calculated by TALYS and normalized to the experimental data. The S factor of the (d,3He) channel from the present work is about 50% lower than existing data at nearby energies. At big-bang energies, the S factor is about three orders of magnitude smaller than that of the (d,p) channel. The (d,3He) reaction rate is found to have a less than 0.1% effect on the 6,7Li abundances.

Published in Physics Letters B

ISSN: 0370-2693 (Print); 1873-2445 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: http://www.journals.elsevier.com/physics-letters-b/

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