Cross Sections for Elastic Scattering and Reactions Due to Protons on N15

S. Bashkin, R. R. Carlson, and R. A. Douglas
Phys. Rev. 114, 1543 – Published 15 June 1959
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Abstract

Absolute differential cross sections were measured for the reactions N15(p, p)N15, N15(p, α0)C12 (ground state), and N15(p, α1)C12* (first excited state). Thin gas targets, enriched up to 98% in N15, and a 6-mil CsI(Tl) crystal detector were used. Numerous angles were studied for bombarding energies between 1 Mev and 3.6 Mev. Spins and parities are discussed where resonances suggest the existence of excited states in O16. Results are as follows: At the 1210-kev resonance, the incident energy for which the α0 yield is maximum depends on the angle of observation. This is probably the result of interference and has bearing on the spin and parity assignment of this level. The anomaly at 1890 kev cannot be positively identified as due to resonance.

  • Received 28 January 1959

DOI:https://doi.org/10.1103/PhysRev.114.1543

©1959 American Physical Society

Authors & Affiliations

S. Bashkin, R. R. Carlson, and R. A. Douglas*

  • State University of Iowa, Iowa City, Iowa

  • *Now at Universidade de São Paulo, São Paulo, Brazil.

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Issue

Vol. 114, Iss. 6 — June 1959

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