Projectile $Δ$ Excitations in $p(p,n)Nπ$ Reactions

Details Projectile $Δ$ Excitations in $p(p,n)Nπ$ Reactions Projectile $Δ$ Excitations in $p(p,n)Nπ$ Reactions

1995-06-23

arxiv.org/abs/nucl-th/9506020v1

Phys.Rev.C54:952-955,1996

Physics

Nuclear Physics

Nuclear Theory

9 pages, Revtex, figures can be obtained upon request

Scientific paper

10.1103/PhysRevC.54.952

It has recently been proven from measurements of the spin-transfer coefficients $D_{xx}$ and $D_{zz}$ that there is a small but non-vanishing $\Delta S=0$ component $\sigma_{0}$, in the inclusive $p(p,n)N\pi\,$ reaction cross section $\sigma\,$. It is shown that the dominant part of the measured $\sigma_{0}$ can be explained in terms of the projectile $\Delta$ excitation mechanism. An estimate is further made of contributions to $\sigma_{0}$ from s-wave rescattering process. It is found that s-wave rescattering contribution is much smaller than the contribution coming from projectile $\Delta$ excitation mechanism. The addition of s-wave rescattering contribution to the dominant part, however, improves the fit to the data.

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