G. R. Burleson

Angular distributions for /sup 14/C,/sup 26/Mg(. pi. /sup +/,. pi. /sup -/)

Cross sections at theta = 5/sup 0/ (lab) were obtained at seven energies for /sup 14/C(..pi../sup +/,..pi../sup -/) /sup 14/ O(g.s.) and at four energies for /sup 26/Mg(..pi../sup +/,..pi../sup -/) /sup 26/ Si(g.s.). Angular distributions have been measured for both reactions at energies of 140 and 200 MeV. The results are compared to previous angular distributions at other energies on these two nuclei, and to a series of angular distributions measured for /sup 18/O(..pi../sup +/,..pi../sup -/).

Diffractive angular distribution for /sup 16/O(. pi. /sup +/,. pi. /sup -/)/sup 16/Ne(g. s. )

The 164-MeV angular distribution for the non-analog double charge exchange reaction /sup 16/O(..pi../sup +/, ..pi../sup -/)/sup 16/Ne(g.s.) has been measured and is found to be basically diffractive. This is contrasted with the previously measured analog distribution /sup 18/O(..pi../sup +/, ..pi../sup -/)/sup 18/Ne (double isobaric analog) which is not diffractive.

Analyzing powers for the {pi}{sup {minus}}{rvec p}{r_arrow}{pi}{sup 0}n reaction across the {Delta}(1232) resonance

High quality analyzing powers for the {pi}{sup {minus}}{rvec p}{r_arrow}{pi}{sup 0}n reaction have been obtained with a polarized proton target over a broad angular range at incident kinetic energies of 98.1, 138.8, 165.9, and 214.4 MeV. This experiment nearly doubled the existing {pi}N single-charge-exchange database for energies ranging from 10 to 230 MeV, with 36 new analyzing powers. The Neutral Meson Spectrometer was used to detect the outgoing neutral pions. The data are well described by recent phase-shift analyses. When combined with high-precision and accurate cross section data at the same energies, the data can provide a good test of the degree of isospin breaking in the region of the {Delta}(1232) resonance. They will also be helpful for constraining the evaluation of the pion-nucleon {sigma} term from the scattering amplitudes. {copyright} {ital 1999} {ital The American Physical Society}High quality analyzing powers for the

Pion-nucleus elastic scattering on {sup 12}C, {sup 40}Ca, {sup 90}Zr, and {sup 208}Pb at 400 and 500 MeV

{\ensuremath{\pi}}^{\ensuremath{-}}\stackrel{\ensuremath{\rightarrow}}{p}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}n

Pion double charge exchange onO16atTπ=300–500 MeV

reaction have been obtained with a polarized proton target over a broad angular range at incident kinetic energies of 98.1, 138.8, 165.9, and 214.4 MeV. This experiment nearly doubled the existing

Pion double charge exchange on sup 42,44,48 Ca for 300 le T sub. pi. le 550 MeV

\ensuremath{\pi}N

Pion double charge exchange onCa42,44,48for 300≤Tπ≤550 MeV

single-charge-exchange database for energies ranging from 10 to 230 MeV, with 36 new analyzing powers. The Neutral Meson Spectrometer was used to detect the outgoing neutral pions. The data are well described by recent phase-shift analyses. When combined with high-precision and accurate cross section data at the same energies, the data can provide a good test of the degree of isospin breaking in the region of the

MEASUREMENT OF DELTA SIGMA-l AND C (L, L) = (L, L : 0, 0) N PROTON PROTON SCATTERING BETWEEN 300-MEV AND 800-MEV

\ensuremath{\Delta}(1232)

Search for an eta bound state in pion double charge exchange on 18O.

resonance. They will also be helpful for constraining the evaluation of the pion-nucleon

Pion inelastic scattering to the low-lying excited states of /sup 6/Li

\ensuremath{\sigma}