Dominance of High-Spin Two-Particle, One-Hole Transitions in (<span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mi>p</mi><mo>,</mo><mi> </mi><mrow><msup><mrow><mi>π</mi></mrow><mrow><mo>−</mo></mrow></msup></mrow></math></span>) Reactions

S. E. Vigdor; T. G. Throwe; M. C. Green; W. W. Jacobs; R. D. Bent; J. J. Kehayias; W. K. Pitts; T. E. Ward

doi:10.1103/PhysRevLett.49.1314

Dominance of High-Spin Two-Particle, One-Hole Transitions in ( $p, π^{-}$ ) Reactions

S. E. Vigdor, T. G. Throwe, M. C. Green, W. W. Jacobs, R. D. Bent, J. J. Kehayias, W. K. Pitts, and T. E. Ward

Phys. Rev. Lett. 49, 1314 – Published 1 November 1982

Abstract

Measurements of broad-range momentum spectra for ( $p, π^{-}$ ) reactions on a number of target nuclei with $13 <~ A <~ 92$ have revealed a striking and systematic selectivity for one or a few low-lying discrete states in the residual nuclei. It is proposed that the dominant transitions lead to high-spin, stretched (or nearly stretched) two-particle, one-hole states, as favored by a two-nucleon pion production mechanism.