Spin–isospin selectivity in three-nucleon forces (CROSBI ID 162021)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Mardanpour, H. ; Amir-Ahmadi, H.R. ; Benard, R. ; Biegun, A. ; Eslami-Kalantari, M. ; Joulaeizadeh, L. ; Kalantar-Nayestanaki, N. ; Kiš, Mladen ; Kistryn, St. ; Kozela, A. ; Kuboki, H. ; Maeda, Y. ; Mahjour-Shafiei, M. ; Messchendorp, Y.G. ; Miki, K. ; Noji, S. ; Ramazani-Moghaddam-Arani, A. ; Sakai, H. ; Sasano, M. ; Sekiguchi, K. ; Stephan, E. ; Sworst, R. ; Takahashi, Y. ; Yako, K.
engleski
Spin–isospin selectivity in three-nucleon forces
Precision data are presented for the break-up reaction, (2)H((p) over right arrow, pp)n, within the framework of nuclear-force studies. The experiment was carried out at KVI using a polarized-proton beam of 190 MeV impinging on a liquid-deuterium target and by exploiting the detector, BINA. Some of the vector-analyzing powers are presented and compared with state-of-the-art Faddeev calculations including three-nucleon forces effect. Significant discrepancies between the data and theoretical predictions were observed for kinematical configurations which correspond to the (2)H((p) over right arrow, (2)He)n channel. These results are compared to the (2)H((p) over right arrow, d)p reaction to test the isospin sensitivity of the present three-nucleon force models. The current modeling of two and three-nucleon forces is not sufficient to describe consistently polarization data for both isospin states.
nuclear forces ; proton–deuteron break-up ; three-nucleon force ; polarization phenomena
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Podaci o izdanju
687 (2-3)
2010.
149-153
objavljeno
0370-2693
1873-2445
10.1016/j.physletb.2010.03.021