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Direct and resonant breakup of radioactive Be7 nuclei produced in the Sn112(Li6,Be7) reaction

D. Chattopadhyay, S. Santra, A. Pal, A. Kundu, K. Ramachandran, R. Tripathi, T. N. Nag, and S. Kailas
Phys. Rev. C 102, 021601(R) – Published 3 August 2020

Abstract

Cross sections for direct and resonant breakup of radioactive Be7 nuclei produced in a transfer reaction Sn112(Li6,Be7α+He3)In111 have been measured. Breakup of Be7 into α and He3 cluster fragments via its resonant states of 7/2(4.57 MeV) and 5/2 (6.73 MeV) in the continuum have been identified for the first time using the measured distribution of αHe3 relative energy and the reaction Q value obtained from the αHe3 coincident events. The breakup cross sections extracted from the efficiency corrected coincidence yield compares well with the results of the coupled-channels calculations. Significant cross sections for breakup of Be7 into its cluster fragments directly or through resonant states highlight the importance of the ground-state structure of Be7 as a cluster of α and He3.

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  • Received 11 April 2020
  • Accepted 1 July 2020

DOI:https://doi.org/10.1103/PhysRevC.102.021601

©2020 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

D. Chattopadhyay1,2, S. Santra1,3,*, A. Pal1, A. Kundu1,3, K. Ramachandran1, R. Tripathi3,4, T. N. Nag3,4, and S. Kailas5

  • 1Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
  • 2Nuclear Physics Division, Saha Institute of Nuclear Physics, Kolkata 700064, India
  • 3Homi Bhabha National Institute, Anushakti Nagar, Mumbai 400094, India
  • 4RadioChemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
  • 5UM-CBS Centre for Excellence in Basic Sciences, Mumbai 400 098, India

  • *ssantra@barc.gov.in

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Issue

Vol. 102, Iss. 2 — August 2020

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