Neutron-deuteron analyzing power data at 19.0 MeV

dc.contributor.author

Weisel, GJ

dc.contributor.author

Tornow, W

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Crowe, BJ

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Crowell, AS

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Esterline, JH

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Howell, CR

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Kelley, JH

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Macri, RA

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Pedroni, RS

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Walter, RL

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Witała, H

dc.date.accessioned

2011-06-21T17:27:45Z

dc.date.issued

2010-02-23

dc.description.abstract

Measurements of neutron-deuteron (n-d) analyzing power Ay(θ) at En=19.0 MeV are reported at 16 angles from θc.m.=46.7 to 152.0°. The objective of the experiment is to better characterize the discrepancies between n-d data and the predictions of three-nucleon calculations for neutron energies above 16.0 MeV. The experiment used a shielded neutron source, which produced polarized neutrons via the H2(d-,n-)He3 reaction, a deuterated liquid scintillator center detector (CD) and liquid-scintillator neutron side detectors. A coincidence between the CD and the side detectors isolated the elastic-scattering events. The CD pulse height spectrum associated with each side detector was sorted by using pulse-shape discrimination, time-of-flight techniques, and by removing accidental coincidences. A Monte Carlo computer simulation of the experiment accounted for effects due to finite geometry, multiple scattering, and CD edge effects. The resulting high-precision data (with absolute uncertainties ranging from 0.0022 to 0.0132) have a somewhat lower discrepancy with the predictions of three-body calculations, as compared to those found at lower energies. © 2010 The American Physical Society.

dc.description.version

Version of Record

dc.identifier.eissn

1089-490X

dc.identifier.issn

0556-2813

dc.identifier.uri

https://hdl.handle.net/10161/4259

dc.language.iso

en_US

dc.publisher

American Physical Society (APS)

dc.relation.ispartof

Physical Review C - Nuclear Physics

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10.1103/PhysRevC.81.024003

dc.relation.journal

Physical Review C

dc.title

Neutron-deuteron analyzing power data at 19.0 MeV

dc.title.alternative
dc.type

Journal article

duke.contributor.orcid

Tornow, W|0000-0003-4031-6926

duke.date.pubdate

2010-2-0

duke.description.issue

2

duke.description.volume

81

pubs.begin-page

24003

pubs.issue

2

pubs.organisational-group

Duke

pubs.organisational-group

Physics

pubs.organisational-group

Trinity College of Arts & Sciences

pubs.publication-status

Published

pubs.volume

81

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