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Determination of relative signs of neutron and proton transition matrix elements: Strong cancellation observed for the /sup 34/S(0/sup +/. -->. 2/sub 2//sup +/) transition

Journal Article · · Phys. Rev. Lett.; (United States)
Hadron scattering is shown to be sensitive to the relative sign of neutron and proton transition matrix elements. The relative signs for the 2/sub 2//sup +/ states are determined to be positive for /sup 26/Mg, /sup 30/Si, and /sup 42/Ca, and negative for /sup 34/S on the basis of proton differential cross-section measurements at 650 and 800 MeV. Suppression of the one-step amplitude in the /sup 34/S 2/sub 2//sup +/ state causes the interference of one-step and multistep reactions to be experimentally apparent.
Research Organization:
Physics Department and Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
DOE Contract Number:
W-7405-ENG-48; AC02-76ER03069
OSTI ID:
6802959
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 49:7; ISSN PRLTA
Country of Publication:
United States
Language:
English

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