Inclusive reaction 40Ca(p,p′x) at an incident energy of 392 MeV

Cowley A.A. ; Steyn G.F. ; Watanabe Y. ; Noro T. ; Tamura K. ; Kawabata M. ; Hatanaka K. ; Sakaguchi H. ; Takeda H. ; Itoh M. (2000)


Emission-energy distributions were measured for the inclusive 40Ca(p,p′) reaction at an incident energy of 392 MeV and an angular range between 25° and 120°. A semiclassical distorted wave (SCDW) model gives a reasonably good description of the experimental data. The extent to which the observed yields are dominated by a two-particle rescattering emission contribution is estimated by a theoretical method that is known to describe experimental data for 40Ca(p,p′p″) reasonably well. The energy distribution of the two-particle inclusive yield is found to agree well with the first-step contribution of the SCDW theory. Consequently this suggests strongly that the inclusive (p,p′) yield at forward angles and high emission energy consists mostly of two high-energy nucleons emitted in the first step of the collision.

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