A. Fazely

12C(p,n)12N reaction at 135 MeV.

We report observations from the (p,n) reaction on

Cross section and analyzing power for the isovector “stretched” 6− state in the 28Si(p, n)28P reaction

^{12}\mathrm{C}

C12(p,n)12N reaction at 135 MeV

at 135 MeV. The experiment was performed with the beam-swinger neutron time-of-flight system at the Indiana University Cyclotron Facility. Neutrons were detected in large-volume plastic scintillation detectors located in three detector stations at 0\ifmmode^\circ\else\textdegree\fi{}, 24\ifmmode^\circ\else\textdegree\fi{}, and 45\ifmmode^\circ\else\textdegree\fi{} with respect to the undeflected beam line; the flight paths were 91 m, 91 m, and 74 m, respectively. Overall time resolutions of about 825 ps provided energy resolutions of about 350 keV in the first two stations and about 425 keV in the third station. The angular distributions for states with excitation energies up to 10 MeV are presented and comparisons are made with DWIA calculations that use one-body density matrices from 0\ensuremath{\Elzxh}\ensuremath{\omega} and 1\ensuremath{\Elzxh}\ensuremath{\omega} shell-model calculations. New information is deduced on the excitation energies, widths, and spin-parity assignments for several energy levels of

{sup 12}C({ital p},{ital n}){sup 12}N reaction at 135 MeV

^{12}\mathrm{N}

C 12 ( p , n ) 12 N reaction at 135 MeV

. \textcopyright{} 1996 The American Physical Society.

High-Spin States in the (p,n) Reaction

Abstract We studied the 28 Si(p, n) reaction with both unpolarized and polarized protons at a nominal energy of 135 MeV, extracted the angular distributions of the differential cross section and the analyzing power for the 6 − , T = 1 state at an excitation energy of 4.95 MeV in 28 P, and compared our results with similar data published for the analog ( p , p ′) reaction to the 6 − , T = 1 state at an excitation energy of 14.35 MeV in 28 Si. These comparisons are consistent with charge independence. The measurements are described well by distorted-wave-impulse-approximation calculations with form factors and spectroscopic amplitudes determined from electron scattering.

Analyzing-power measurements in the 48Ca(p,n)48Sc reaction at 134 MeV.

We report observations from the (p,n) reaction on

Analyzing-power measurements in the /sup 48/Ca(p,n)/sup 48/Sc reaction at 134 MeV

^{12}\mathrm{C}

Gamow-teller strength in the O18(p,n)F18 reaction at 135 MeV

at 135 MeV. The experiment was performed with the beam-swinger neutron time-of-flight system at the Indiana University Cyclotron Facility. Neutrons were detected in large-volume plastic scintillation detectors located in three detector stations at 0\ifmmode^\circ\else\textdegree\fi{}, 24\ifmmode^\circ\else\textdegree\fi{}, and 45\ifmmode^\circ\else\textdegree\fi{} with respect to the undeflected beam line; the flight paths were 91 m, 91 m, and 74 m, respectively. Overall time resolutions of about 825 ps provided energy resolutions of about 350 keV in the first two stations and about 425 keV in the third station. The angular distributions for states with excitation energies up to 10 MeV are presented and comparisons are made with DWIA calculations that use one-body density matrices from 0\ensuremath{\Elzxh}\ensuremath{\omega} and 1\ensuremath{\Elzxh}\ensuremath{\omega} shell-model calculations. New information is deduced on the excitation energies, widths, and spin-parity assignments for several energy levels of

Cross-section measurements for the 2H(p,n)2p reaction at 135 MeV.

^{12}\mathrm{N}