First Observation of 15Be

Authors

J. Snyder, Michigan State UniversityFollow
T. Baumann, Michigan State UniversityFollow
G. Christian, Michigan State UniversityFollow
R. A. Haring-Kaye, Ohio Wesleyan UniversityFollow
P. A. DeYoung, Hope CollegeFollow
Z. Kohley, Michigan State UniversityFollow
B. Luther, Concordia CollegeFollow
M. Mosby, Michigan State University
S. Mosby, Michigan State UniversityFollow
A. Simon, Michigan State UniversityFollow
J. K. Smith, Michigan State UniversityFollow
A. Spyrou, Michigan State UniversityFollow
Sharon L. Stephenson, Gettysburg CollegeFollow
M. Thoennessen, Michigan State UniversityFollow

Document Type

Article

Publication Date

9-2013

Department 1

Physics

Abstract

The neutron-unbound nucleus 15Be was observed for the first time. It was populated using neutron transfer from a deuterated polyethylene target with a 59 MeV/u 14Be beam. Neutrons were measured in coincidence with outgoing 14Be particles and the reconstructed decay energy spectrum exhibits a resonance at 1.8(1) MeV. This corresponds to 15Be being unbound by 0.45 MeV more then 16Be thus significantly hindering the sequential two-neutron decay of 16Be to 14Be through this state.

Copyright Note

This is the publisher's version of the work. This publication appears in Gettysburg College's institutional repository by permission of the copyright owner for personal use, not for redistribution.

DOI

10.1103/PhysRevC.88.031303

Recommended Citation

Snyder, J., et al. (2013)"First Observation of 15Be." Physical Review C 88(3):031303.

Required Publisher's Statement

Original version is available from the publisher at: http://prc.aps.org/abstract/PRC/v88/i3/e031303