Discovery of 68Br in secondary reactions of radioactive beams - Research Database, The University of York

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Discovery of ⁶⁸Br in secondary reactions of radioactive beams

Research output: Contribution to journal › Article

Full text download(s)

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Published copy (DOI)

10.1016/j.physletb.2019.06.014

Author(s)

K. Wimmer
P. Doornenbal
W. Korten
P. Aguilera
A. Algora
T. Ando
T. Arici
H. Baba
B. Blank
A. Boso
S. Chen
A. Corsi
G. de Angelis
G. de France
J. Gerl
R. Gernhäuser
S. Koyama
T. Motobayashi
S. Nagamine
M. Niikura
A. Obertelli
D. Lubos
B. Rubio
E. Sahin
T. Y. Saito
H. Sakurai
L. Sinclair
D. Steppenbeck
M. Zielinska

Department/unit(s)

Publication details

Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Date	Accepted/In press - 10 Jun 2019
Date	Published (current) - 10 Aug 2019
Volume	795
Number of pages	5
Pages (from-to)	266-270
Original language	English

Abstract

The proton-rich isotope ⁶⁸Br was discovered in secondary fragmentation reactions of fast radioactive beams. Proton-rich secondary beams of ^70,71,72Kr and ⁷⁰Br, produced at the RIKEN Nishina Center and identified by the BigRIPS fragment separator, impinged on a secondary ⁹Be target. Unambiguous particle identification behind the secondary target was achieved with the ZeroDegree spectrometer. Based on the expected direct production cross sections from neighboring isotopes, the lifetime of the ground or long-lived isomeric state of ⁶⁸Br was estimated. The results suggest that secondary fragmentation reactions, where relatively few nucleons are removed from the projectile, offer an alternative way to search for new isotopes, as these reactions populate preferentially low-lying states.

Bibliographical note

© 2019 The Authors.

Research areas

Direct reaction, New isotope, Radioactive beams

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