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Resolution of discrepancy between backward angle cross-section data for neutron-deuteron elastic scattering |
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| Authors: | C R Howell W Tornow H R Setze R T Braun D E Gonzalez Trotter C D Roper R S Pedroni S M Grimes C E Brient N Al-Niemi F C Goeckner G Mertens |
| Institution: | (1) Department of Physics, Duke University, 27708-0308 Durham, NC;(2) Triangle Universities Nuclear Laboratory, 27708-0308 Durham, NC, USA;(3) Department of Physics, Ohio University, 45701 Athens, OH, USA;(4) Physikalisches Institut, Universität Tübingen, Auf der Morgenstelle 14, D-72076 Tübingen, Germany;(5) Present address: NSCL, Michigan State University, 48824 East Lansing, MI, USA;(6) Present address: Mathematics Department, Kent State University, 44242 Kent, OH, USA |
| Abstract: | High-accuracy differential cross-section data for neutron-deuteron elastic scattering at centre-of-mass backward angles in the range from 140° to 178° have been measured to accuracies better than ±3% for incident neutron energies of 8.0, 10.0, and 14.0 MeV. The measurements were made by detection of the recoil deuterons and protons from a mixed CD2-CH2 foil. The new data are compared to existing data and to three-nucleon calculations with the Bonn-B nucleon-nucleon potential. We conclude that the present measurements unambiguously resolve the discrepancies among previously reported data of the same type. |
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