Determination of α+nucleus optical potential relevant for p-process study from the natIn(α, α) elastic scattering

Dipali Basak; Tanmoy Bar; Lalit Kumar Sahoo; Sukhendu Saha; Tapan Kumar Rana; Chandana Bhattacharya; Santu Manna; Samir Kundu; Jayanta Kr Sahoo; Jaikiran Meena; Amiya Kr Saha; Chinmay Basu

doi:10.1051/epjconf/202532904005

All issues

Volume 329 (2025)

EPJ Web Conf., 329 (2025) 04005

Abstract

Open Access

Issue		EPJ Web Conf. Volume 329, 2025 17^th International Symposium on Capture Gamma Ray Spectroscopy and Related Topics (CGS17)


Article Number		04005
Number of page(s)		3
Section		Nuclear Astrophysics
DOI		https://doi.org/10.1051/epjconf/202532904005
Published online		25 June 2025

EPJ Web of Conferences 329, 04005 (2025)
https://doi.org/10.1051/epjconf/202532904005

Determination of α+nucleus optical potential relevant for p-process study from the ^natIn(α, α) elastic scattering

Dipali Basak¹^,2^*, Tanmoy Bar¹^,2, Lalit Kumar Sahoo¹^,2, Sukhendu Saha¹^,2, Tapan Kumar Rana³, Chandana Bhattacharya³, Santu Manna³, Samir Kundu³, Jayanta Kr Sahoo³, Jaikiran Meena³, Amiya Kr Saha³ and Chinmay Basu¹^,2

¹ Nuclear Physics Division, Saha Institute of Nuclear Physics, 1/AF, Bidhannagar, Kolkata - 700064, India
² Homi Bhabha National Institute, Anushaktinagar, Mumbai, Maharashtra - 400094, India
³ Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, Kolkata - 700064, India

^* e-mail: dipali.basak@saha.ac.in

Published online: 25 June 2025

Abstract

The knowledge of alpha optical potential is important for determining the nuclear reaction rates. ^natIn(α, α)^natIn elastic scttering cross-sections have been measured at energies E_lab = 26 and 29 MeV above the coulomb barrier. A set of local optical potential parameters was obtained from the experimental elastic scattering data. In comparison to the existing global potential parameters, the potential parameters extracted in this work show a satisfactory result. The local potential are used to calculate the ¹¹⁵In(α,γ) reaction cross-section.

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