Energy dependence of stretched states excited in (p,n) reactions

R. Pourang*, J. W. Watson, M. Ahmad, W. P. Alford, B. D. Anderson, A. R. Baldwin, A. Celler, M. Elaasar, C. C. Foster, R. Helmer, O. Häusser, K. P. Jackson, C. A. Miller, R. Madey, M. Moinester, M. Mostajabodda'vati, N. Tamimi, S. Yen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We studied the energy dependence of the excitation of the ''1Latin small letter h with strokeω,'' Jπ=6-, state in the Si28(p,n)28P(4.95 MeV) reaction and the ''0Latin small letter h with strokeω,'' Jπ=9+, state in the Sr88(p,n)88Y(1.48 MeV) reaction at Ep=100, 200, 300, and 400 MeV. Differential cross sections for these reactions were measured and compared to distorted-wave impulse-approximation (DWIA) calculations. The ratio of the Sr88 to the Si28 DWIA normalizations is independent of beam energy, indicating that the systematic difference in DWIA normalizations reported earlier between 0Latin small letter h with strokeω and 1Latin small letter h with strokeω stretched states is a nuclear-structure effect. Additionally the DWIA normalization for each reaction is independent of the beam energy indicating that the necessary ingredients for DWIA calculations to describe these transitions consistently are well understood.

Original languageEnglish
Pages (from-to)689-699
Number of pages11
JournalPhysical Review C - Nuclear Physics
Issue number2
StatePublished - 1991


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