Benchmark calculation of n-3H and p-3He scattering

M. Viviani, A. Deltuva, R. Lazauskas, J. Carbonell, A. C. Fonseca, A. Kievsky, L.E. Marcucci, and S. Rosati
Phys. Rev. C 84, 054010 – Published 28 November 2011

Abstract

The n-3H and p-3He elastic phase shifts below the trinucleon disintegration thresholds are calculated by solving the four-nucleon problem with three different realistic nucleon-nucleon interactions (the I-N3LO model by Entem and Machleidt, the Argonne v18 potential model, and a low-k model derived from the CD-Bonn potential). Three different methods—Alt-Grassberger-Sandhas, hyperspherical harmonics, and Faddeev-Yakubovsky—have been used and their respective results are compared. For both n-3H and p-3He we observe a rather good agreement between the three different theoretical methods. We also compare the theoretical predictions with the available experimental data, confirming the large underprediction of the p-3He analyzing power.

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  • Received 16 September 2011

DOI:https://doi.org/10.1103/PhysRevC.84.054010

©2011 American Physical Society

Authors & Affiliations

M. Viviani1, A. Deltuva2, R. Lazauskas3, J. Carbonell4, A. C. Fonseca2, A. Kievsky1, L.E. Marcucci1,5, and S. Rosati1,5

  • 1INFN-Pisa, I-56127 Pisa, Italy
  • 2Centro de Física Nuclear da Universidade de Lisboa, P-1649-003 Lisboa, Portugal
  • 3IPHC, IN2P3-CNRS/Université Louis Pasteur BP 28, F-67037 Strasbourg Cedex 2, France
  • 4CEA-Saclay, IRFU/SPhN, F-91191 Gif-sur-Yvette, France
  • 5Department of Physics, University of Pisa, I-56127 Pisa, Italy

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Issue

Vol. 84, Iss. 5 — November 2011

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