Analyzing Power Ay(θ) of nHe3 Elastic Scattering between 1.60 and 5.54 MeV

J. Esterline, W. Tornow, A. Deltuva, and A. C. Fonseca
Phys. Rev. Lett. 110, 152503 – Published 12 April 2013

Abstract

Comprehensive and high-accuracy nHe3 elastic scattering analyzing power Ay(θ) angular distributions were obtained at five incident neutron energies between 1.60 and 5.54 MeV. The data are compared to rigorous four-nucleon calculations using high-precision nucleon-nucleon potential models; three-nucleon force effects are found to be very small. The agreement between data and calculations is fair at the lower energies and becomes less satisfactory with increasing neutron energy. Comparison to pHe3 scattering over the same energy range exhibits unexpectedly large isospin effects.

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  • Received 8 December 2012

DOI:https://doi.org/10.1103/PhysRevLett.110.152503

© 2013 American Physical Society

Authors & Affiliations

J. Esterline1,2, W. Tornow1,2, A. Deltuva3, and A. C. Fonseca3

  • 1Duke University, Durham, North Carolina 27708-0308, USA
  • 2Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708-0308, USA
  • 3Centro de Física Nuclear da Universidade de Lisboa, P-1649-003 Lisboa, Portugal

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Issue

Vol. 110, Iss. 15 — 12 April 2013

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