Elsevier

Nuclear Physics A

Volume 564, Issue 2, 15 November 1993, Pages 217-226
Nuclear Physics A

Delay-advance phenomenon observed by bremsstrahlung spectrum of the 12C + p collision

https://doi.org/10.1016/0375-9474(93)90518-3Get rights and content

Abstract

A new analysis of the experimental data obtained by the 12C(p, p) reaction at the proton scattering angle qƒ = 80° near two superimposed 3.511 MeV, 32 and 3.547 MeV, 52+ resonance states of the 13N compound nucleus was carried out by using the bremsstrahlung method and considering the interference between the background (direct) and resonant (compound nucleus) processes. A general expression of the collision duration is obtained for the case of superimposed resonances with different values of the spin and parity distorted by the non-resonant background. The results of calculations performed using this expression for the case of the two 3.511 and 3.547 MeV 13N states are compared with the experimental data. The total collision duration versus outgoing photon energy is deduced.

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