7Li Photodisintegration withCircularly Polarized Photons

Title

7Li Photodisintegration withCircularly Polarized Photons

Creator

Aswathi V.; Shastri V.; Shilpashree S.P.

Description

The study of photodisintegration of 7Li is of importance to Nuclear Physics, Particle Physics and Astrophysics. Primordial abundances of light elements such as D, 3He, 4He and 7Li are predicted by Big Bang theory of early universe and is of great interest to cosmologists. Lithium, being fragile gets destroyed easily at relatively low temperatures. WMAP measurements have inferred that 7Li abundance is two to three times more than that inferred by the low metallicity halo stars [1]. In recent years based on lithium isotopes series of experimental measurements are being carried out using High-Intensity Gamma-Ray Source (HIGS) at Duke Free Electron Laser Laboratory. Experiments [2, 3] were carried out, to measure the differential cross-section of the photoneutron reaction channel in photodisintegration of 7Li, where the progeny nuclei is in the ground state as well as in excited states. Theoretical study on photodisintegration of deuteron was carried out using a model-independent formalism [47] and in these studies, it was shown clearly that there could be 3 different E1? amplitudes leading to final relative n-p state. Subsequently, evidence for the existence of these three amplitudes was found in experimental studies [6] at slightly higher energies in different contexts. Using the same approach, model-independent formalism was developed for photodisintegration of 7Li [8] and an analysis was carried out to study the differential cross section with linearly polarized photons. Extending this study we propose to discuss the reaction channel 7Li+??6Li+n with initially circularly polarized photons. The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2024.

Source

Springer Proceedings in Physics, Vol-304 SPPHY, pp. 651-653.

Date

2024-01-01

Publisher

Springer Science and Business Media Deutschland GmbH

Coverage

Aswathi V., School of Engineering and Technology, Christ University, Bangalore, 560074, India; Shastri V., School of Engineering and Technology, Christ University, Bangalore, 560074, India; Shilpashree S.P., School of Engineering and Technology, Christ University, Bangalore, 560074, India

Rights

Restricted Access

Relation

ISSN: 9308989; ISBN: 978-981970288-6

Format

Online

Language

English

Type

Conference paper

Identifier

https://doi.org/10.1007/978-981-97-0289-3_149

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85200490906&doi=10.1007%2f978-981-97-0289-3_149&partnerID=40&md5=e8c6bcdfbcb90f72435b4645ab0175e6