Charge-exchange reaction with light neutron-rich beams (Journal article)

Cortina-Gil, M. D./ Pakou, A./ Alamanos, N./ Mittig, W./ Roussel-Chomaz, P./ Auger, F./ Barrette, J./ Blumenfeld, Y./ Casandjian, J. M./ Chartier, M./ Dietrich, F./ Fekou-Youmbi, V./ Fernandez, B./ Frascaria, N./ Gillibert, A./ Laurent, H./ Lepine-Szily, A./ Orr, N./ Pascalon, V./ Scarpaci, J. A./ Sida, J. L./ Suomijarvi, T.

The charge exchange reaction p(He-6, Li-6)n was studied in reverse kinematics with a secondary He-6 beam at 41.6 MeV/nucleon. The transitions connecting the ground states and the one leading from the ground state of 6He to its isobaric analogue state in 6Li have been measured and analysed. Their ratio is a measure of the relative strength of the two components of the exchange interaction, V-tau and V-sigma tau. No clear signature of a halo structure is found from this ratio, since it is found to be compatible with existing systematics for stable T = 1 nuclei. The sensitivity of the (p,n) charge exchange angular distributions to the nuclear interaction potential and to the rms radii of the density distribution of He-6 is studied.
Institution and School/Department of submitter: Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών
Keywords: gamow-teller strength,energy-dependence,halo structure,model,scattering,nucleus
ISSN: 0954-3899
Link: <Go to ISI>://000075325900032
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά)

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