Inclusive 2(3He,t) reaction at 2 GeV
/ Authors
B. Ramstein, C. Mosbacher, D. Bachelier, I. Berquist, M. Boivin, J. Boyard, A. Brockstedt, L. Carlén, R. Dahl, P. Ekström
and 8 more authors
C. Ellegaard, C. Gaarde, T. Hennino, J. Jourdain, C. Goodman, J. Larsen, P. Radvanyi, M. Roy-Stéphan
/ Abstract
Abstract: The inclusive 2(3He,t) reaction has been studied at 2 GeV for energy transfers up to 500 MeV and scattering angles from 0.250 up to 40. Data are well reproduced by a model based on a coupled-channel approach for describing the NN and NΔ systems. The effect of final state interaction is important in the low energy part of the spectra. In the delta region, the cross-section is very sensitive to the effects of Δ-N interaction and ΔN → NN process. The latter has also a large influence well below the pion threshold. The calculation underestimates the experimental cross-section between the quasi-elastic and the delta peaks; this is possibly due to projectile excitation or purely mesonic exchange currents.
Journal: The European Physical Journal A - Hadrons and Nuclei