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Momentum profile analysis in one-neutron knockout from Borromean nuclei

Authors :: Y. Aksyutina
C. Caesar
K. Mahata
Göran Hugo Nyman
D. M. Rossi
Thomas Nilsson
Helmut Weick
Håkan T Johansson
María José García Borge
G. Schrieder
R. Kulessa
K. Boretzky
Rene Reifarth
L. V. Chulkov
G. Münzenberg
G. Ickert
T. LeBleis
Hans Geissel
Mikhail V. Zhukov
Stefanos Paschalis
Achim Richter
Thomas Aumann
H. O. U. Fynbo
K. Sümmerer
Olof Tengblad
H. Emling
R. Palit
D. Cortina-Gil
Herbert A. Simon
K. Riisager
W. Prokopowicz
C. Langer
A. Chatillon
Björn Jonson
U. Datta Pramanik
SCOAP
Source :: Digital.CSIC. Repositorio Institucional del CSIC, instname, Physics letters / B 718(4-5), 1309-1313 (2013). doi:10.1016/j.physletb.2012.12.028, Aksyutina, Y, Aumann, T, Boretzky, K, Borge, M J G, Caesar, C, Chatillon, A, Chulkov, L V, Cortina-Gil, D, Datta Pramanik, U, Emling, H, Fynbo, H O U, Geissel, H, Ickert, G, Johansson, H T, Jonson, B, Kulessa, R, Langer, C, LeBleis, T, Mahata, K, Münzenberg, G, Nilsson, T, Nyman, G, Palit, R, Paschalis, S, Prokopowicz, W, Reifarth, R, Rossi, D, Richter, A, Riisager, K, Schrieder, G, Simon, H, Sümmerer, K, Tengblad, O, Weick, H & Zhukov, M V 2013, ' Momentum profile analysis in one-neutron knockout from Borromean nuclei ', Physics Letters B: Particle Physics, Nuclear Physics and Cosmology, vol. 718, no. 4-5, pp. 1309-1313 . https://doi.org/10.1016/j.physletb.2012.12.028
Publication Year :: 2013
Publisher :: Elsevier BV, 2013.
Abstract: Open Access funded by SCOAP3 - Sponsoring Consortium for Open Access Publishing in Particle Physics<br />One-neutron knockout reactions from Borromean nuclei are analyzed using a profile function analysis technique. The profile function, which is derived as the square root of the variance of the measured fragment + neutron momenta as a function of their relative energy, is shown to be very sensitive to the angular momentum of the knocked out neutron. Three cases are studied here: 7He, where the profile function analysis shows a presence of (s1/2)2 component in the 8He ground-state wave-function, 10Li, where the presence of a 11(2)% d-wave contribution to the relative energy spectrum above 1.5 MeV is found and, finally, the presence of a major s contribution around 0.5 MeV relative energy in the 13Be case and that the observed decay to the 12Be 2+ state originates in a d state in 13Be. © 2012 Elsevier Open access under CC BY license.<br />Financial support from the Swedish Research Council and the Spanish Ministry through the research grant FPA2009-07387 is also acknowledged.