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Title: Analyzing powers for the {sup 2}H({ital {rvec p}},{ital pn}){sup 1}H reaction at 200 MeV

Abstract

We measured the analyzing power {ital A}{sub {ital y}} and the triple differential cross section {ital d}{sup 3}{sigma}/{ital d}{Omega}{sub {ital pd}}{Omega}{sub {ital ndE}}{sub {ital p}} for the {sup 2}H({ital {rvec p}},{ital pn}){sup 1}H reaction at 200 MeV. Coplanar coincidence data were taken for all combinations of neutron angles {theta}{sub {ital n}}=35{degree}, 45{degree}, or 55{degree} with proton angles {theta}{sub {ital p}}=35{degree}, 45{degree}, or 52{degree}. Protons were detected with a {Delta}{ital E}-{ital E} telescope with a 1000-{mu}m silicon surface barrier {Delta}{ital E} detector and a plastic scintillator {ital E} detector. Neutrons were detected with large-volume plastic scintillators at flight paths of 17.5 or 18 m. The overall neutron separation-energy resolution was about 3 MeV. Data are compared with plane-wave impulse-approximation calculations with a Hulthen deuteron wave function and {ital p}-{ital n} cross sections and analyzing powers obtained from {ital N}-{ital N} phase shifts. The agreement between these calculations and the data is generally good for the cross sections. The agreement for the analyzing powers is good near the point of zero recoil momentum. Our results suggest that the deuteron is a good ``neutron target`` for recoil momenta {lt}100 MeV/{ital c}.

Authors:
; ; ; ; ; ; ;  [1]
  1. Department of Physics, Kent State University, Kent, Ohio 44242 (United States)
Publication Date:
OSTI Identifier:
124773
Resource Type:
Journal Article
Journal Name:
Physical Review, C
Additional Journal Information:
Journal Volume: 52; Journal Issue: 5; Other Information: PBD: Nov 1995
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; DEUTERIUM TARGET; PROTON REACTIONS; POLARIZATION-ASYMMETRY RATIO; DIFFERENTIAL CROSS SECTIONS; MEV RANGE 100-1000; PHASE SHIFT; SCINTILLATOR-PHOTODIODE DETECTORS; WAVE FUNCTIONS

Citation Formats

Pairsuwan, W, Watson, J W, Ahmad, M, Chant, N S, Flanders, B S, Madey, R, Pella, P J, Roos, P G, Department of Physics and Astronomy, University of Maryland, College Park, Maryland 20742, and Department of Physics, Gettysburg College, Gettysburg, Pennsylvania 17325. Analyzing powers for the {sup 2}H({ital {rvec p}},{ital pn}){sup 1}H reaction at 200 MeV. United States: N. p., 1995. Web. doi:10.1103/PhysRevC.52.2552.
Pairsuwan, W, Watson, J W, Ahmad, M, Chant, N S, Flanders, B S, Madey, R, Pella, P J, Roos, P G, Department of Physics and Astronomy, University of Maryland, College Park, Maryland 20742, & Department of Physics, Gettysburg College, Gettysburg, Pennsylvania 17325. Analyzing powers for the {sup 2}H({ital {rvec p}},{ital pn}){sup 1}H reaction at 200 MeV. United States. doi:10.1103/PhysRevC.52.2552.
Pairsuwan, W, Watson, J W, Ahmad, M, Chant, N S, Flanders, B S, Madey, R, Pella, P J, Roos, P G, Department of Physics and Astronomy, University of Maryland, College Park, Maryland 20742, and Department of Physics, Gettysburg College, Gettysburg, Pennsylvania 17325. Wed . "Analyzing powers for the {sup 2}H({ital {rvec p}},{ital pn}){sup 1}H reaction at 200 MeV". United States. doi:10.1103/PhysRevC.52.2552.
@article{osti_124773,
title = {Analyzing powers for the {sup 2}H({ital {rvec p}},{ital pn}){sup 1}H reaction at 200 MeV},
author = {Pairsuwan, W and Watson, J W and Ahmad, M and Chant, N S and Flanders, B S and Madey, R and Pella, P J and Roos, P G and Department of Physics and Astronomy, University of Maryland, College Park, Maryland 20742 and Department of Physics, Gettysburg College, Gettysburg, Pennsylvania 17325},
abstractNote = {We measured the analyzing power {ital A}{sub {ital y}} and the triple differential cross section {ital d}{sup 3}{sigma}/{ital d}{Omega}{sub {ital pd}}{Omega}{sub {ital ndE}}{sub {ital p}} for the {sup 2}H({ital {rvec p}},{ital pn}){sup 1}H reaction at 200 MeV. Coplanar coincidence data were taken for all combinations of neutron angles {theta}{sub {ital n}}=35{degree}, 45{degree}, or 55{degree} with proton angles {theta}{sub {ital p}}=35{degree}, 45{degree}, or 52{degree}. Protons were detected with a {Delta}{ital E}-{ital E} telescope with a 1000-{mu}m silicon surface barrier {Delta}{ital E} detector and a plastic scintillator {ital E} detector. Neutrons were detected with large-volume plastic scintillators at flight paths of 17.5 or 18 m. The overall neutron separation-energy resolution was about 3 MeV. Data are compared with plane-wave impulse-approximation calculations with a Hulthen deuteron wave function and {ital p}-{ital n} cross sections and analyzing powers obtained from {ital N}-{ital N} phase shifts. The agreement between these calculations and the data is generally good for the cross sections. The agreement for the analyzing powers is good near the point of zero recoil momentum. Our results suggest that the deuteron is a good ``neutron target`` for recoil momenta {lt}100 MeV/{ital c}.},
doi = {10.1103/PhysRevC.52.2552},
journal = {Physical Review, C},
number = 5,
volume = 52,
place = {United States},
year = {1995},
month = {11}
}