Emission times in low-energy heavy-ion reactions by particle-particle correlations

Authors

Paul DeYoung, Hope CollegeFollow
M. S. Gordon, State University of New York, Stony Brook
Xiu qin Lu, State University of New York, Stony Brook
R. L. McGrath, State University of New York, Stony Brook
J. M. Alexander, State University of New York, Stony Brook
D. M. de Castro Rizzo, State University of New York, Stony Brook
L. C. Vaz, State University of New York, Stony Brook

Document Type

Article

Publication Date

1989

Publication Source

Physical Review C

Volume Number

39

Issue Number

1

First Page

128

Last Page

131

Publisher

American Physical Society

ISSN

0556-2813

Comments

The article was written by Paul DeYoung during his time at the State University of New York, Stony Brook.

Abstract

Particle-particle correlations (p-p and α-α) vs relative momentum (P_rel) are reported (θ_lab≊19.5°) for the reaction 140 MeV ¹⁶O+²⁷Al. A plot of the Galilean invariant cross section indicates that evaporative emission dominates the gross proton production even at this forward angle. The observed anticorrelation between two protons for small values of P_rel is analyzed to give an evaporation lifetime in the range of 1–5×10^-21 s. The α-α correlation is completely different; it seems to arise from preformed ⁸Be.

Recommended Citation

Published in: Physical Review C, Volume 39, Issue 1, January 1, 1989, pages 128-131. Copyright © 1989 American Physical Society, College Park, MD. The final published version is available at: http://dx.doi.org/10.1103/PhysRevC.39.128