| Title | A comprehensive study of analyzing powers in the proton–deuteron break-up channel at 135 MeV / |
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| Authors | Bayat, M. T ; Tavakoli-Zaniani, H ; Amir-Ahmadi, H. R ; Deltuva, Arnoldas ; Eslami-Kalantari, M ; Golak, J ; Kalantar-Nayestanaki, N ; Kistryn, St ; Kozela, A ; Mardanpour, H ; Messchendorp, J. G ; Mohammadi-Dadkan, M ; Ramazani-Moghaddam-Arani, A ; Ramazani-Sharifabadi, R ; Skibiński, R ; Stephan, E ; Witała, H |
| DOI | 10.1140/epja/s10050-020-00255-0 |
| Full Text |
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| Is Part of | European physical journal A. Hadrons and nuclei.. Heidelberg : Springer. 2020, vol. 56, no. 10, art. no. 249, p. [1-13].. ISSN 1434-6001. eISSN 1434-601X |
| Abstract [eng] | A measurement of the analyzing powers for the 2H (p→ , pp) n break-up reaction was carried out at KVI exploiting a polarized-proton beam at an energy of 135MeV. The scattering angles and energies of the final-state protons were measured using the Big Instrument for Nuclear-polarization Analysis (BINA) with a nearly 4 π geometrical acceptance. In this work, we analyzed a large number of kinematical geometries including forward–forward configurations in which both the final-state particles scatter to small polar angles and backward–forward configurations in which one of the final-state particles scatters to large polar angles. The results are compared with Faddeev calculations based on modern nucleon–nucleon (NN) and three-nucleon (3N) potentials. Discrepancies between polarization data and theoretical predictions are observed for configurations corresponding to small relative azimuthal angles between the two final-state protons. These configurations show a large sensitivity to 3N force effects. |
| Published | Heidelberg : Springer |
| Type | Journal article |
| Language | English |
| Publication date | 2020 |
| CC license |
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