Breakup mechanisms for 7Li + 197Au, 204Pb systems at sub-barrier energies

D.H. Luong; M. Dasgupta; D.J. Hinde; R. du Rietz; R. Rafiei; M. Evers; C.J. Lin; A. Wakhle; K. Ramachandran; I.P. Carter; A. Diaz-Torres

doi:10.1051/epjconf/20136302004

All issues

Volume 63 (2013)

EPJ Web of Conferences, 63 (2013) 02004

Abstract

Open Access

Issue		EPJ Web of Conferences Volume 63, 2013 Heavy Ion Accelerator Symposium 2013


Article Number		02004
Number of page(s)		4
Section		Reactions
DOI		https://doi.org/10.1051/epjconf/20136302004
Published online		19 December 2013

EPJ Web of Conferences 63, 02004 (2013)
https://doi.org/10.1051/epjconf/20136302004

Breakup mechanisms for ⁷Li + ¹⁹⁷Au, ²⁰⁴Pb systems at sub-barrier energies

D.H. Luong¹^a, M. Dasgupta¹, D.J. Hinde¹, R. du Rietz¹^,b, R. Rafiei¹^,c, M. Evers¹, C.J. Lin¹^,d, A. Wakhle¹, K. Ramachandran¹^,2, I.P. Carter¹ and A. Diaz-Torres³

¹ Department of Nuclear Physics, The Australian National University, ACT 0200, Australia
² Nuclear Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
³ ECT*, Villa Tambosi, I-38123 Villazzano, Trento, Italy

^a e-mail: huy.luong@anu.edu.au

Published online: 19 December 2013

Abstract

Coincidence measurements of breakup fragments were carried out for the ⁷Li + ¹⁹⁷Au and ²⁰⁴Pb systems at sub-barrier energies. The mechanisms triggering breakup, and time-scales of each process, were identified through the reaction Q-values and the relative energy of the breakup fragments. Binary breakup of ⁷Li were found to be predominantly triggered by nucleon transfer, with p-pickup leading to ⁸Be → α + α decay being the preferred breakup mode. From the time-scales of each process, the coincidence yields were separated into prompt and delayed components, allowing the identification of breakup process important in the suppression of complete fusion of ⁷Li at above-barrier energies.

^b

Present address: Malmö University, Faculty of Technology and Society, 205 06 Malmö, Sweden

^c

Present address: School of Electrical, Electronic and Computer Engineering, The University of Western Australia, Perth, WA 6009, Australia

^d

Present address: China Institute of Atomic Energy, Beijing 102413, P.R. China

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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