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Title: Breakup energy spectrum of singlet deuterons measured using [ital d]+[ital d][r arrow][ital d][sup *]+[ital d][sup *] four-body reaction at 15. 7 MeV

Journal Article · · Physical Review, C (Nuclear Physics); (United States)
; ; ;  [1]
  1. Shanghai Institute of Nuclear Research, Academia Sinica, P.O. Box 800-204, Shanghai 201800 (China)

A kinematically complete measurement of the four-body breakup reaction [ital d]+[ital d][r arrow][ital d][sup *]+[ital d][sup *][r arrow][ital p]+[ital n]+[ital p]+[ital n] has been performed at 15.7 MeV bombarding energy. A ring-detector system consisting of a charged-particle detector and a neutron detector is used to define a singlet deuteron, i.e., [ital d][sup *]; a charged-particle detector is used to measure spectra of products produced by another [ital d][sup *] at five angles. A velocity-distribution diagram has first been obtained, and by performing a fit the most probable breakup energy of the singlet deuteron in the laboratory system is obtained, 0.054[plus minus]0.012 MeV. A final state interaction calculation using known [ital p]-[ital n] singlet phase shifts predicts the expected proton spectra.

OSTI ID:
6818218
Journal Information:
Physical Review, C (Nuclear Physics); (United States), Vol. 47:2; ISSN 0556-2813
Country of Publication:
United States
Language:
English