Elsevier

Physics Letters B

Volume 237, Issue 1, 8 March 1990, Pages 33-36
Physics Letters B

Pion induced transitions to double-isobaric-analog states at 35 MeV on 1f72-shell nuclei

https://doi.org/10.1016/0370-2693(90)90456-GGet rights and content

Abstract

Measurements of cross sections at an incident π+ beam energy of 35 MeV in the angular range 25°–70° are reported for the double-analog-state transitions on 42,44,48Ca, 46,50Ti, and 54Fe. An overall trend towards flatter angular-distribution shapes with increasing neutron excess is observed. The data are consistent with descriptions based on shell-model correlations.

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This work was supported in part by the US-Israel Binational Science Foundation, the National Science Foundation, a grant from the Bat-Sheva de Rothschild Fund for the Advancement of Science and Technology, and the US Department of Energy.

We wish to thank the LAMPF staff and especially R.L. Boudrie for their assistance. Illuminating discussions with N. Auerbach, E. Bleszynski, M. Bleszynski, W.R. Gibbs, J.N. Ginocchio, R. Galuber and W.B. Kaufmann are gratefully acknowledged.

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