Study of bound states in 10Be by one neutron removal reactions of 11Be
Artikel i vetenskaplig tidskrift, 2017
The bound states of 10Be have been studied by removing single neutrons from 11Be nuclei. A 2.8 MeV u-1 beam of 11Be was produced at ISOLDE, CERN and directed on to both proton and deuteron targets inducing one-neutron removal reactions. Charged particles were detected to identify the two reaction channels (d, t) and (p, d), and the individual states in 10Be were identified by gamma detection. All bound states but one were populated and identified in the (d, t) reaction. The combination of REX-ISOLDE and MINIBALL allowed for a clean separation of the high-lying states in 10Be. This is the first time these states have been separated in a reaction experiment. Differential cross sections have been calculated for all the reaction channels and compared to DWBA calculations. Spectroscopic factors are derived and compared to values from the litterature. While the overall agreement between the spectrocopic factors is poor, the ratio between the ground state and the first excited state is in agreement with the previous measured ones. Furthermore, a significant population of the state is observed, which which may indicate the presence of multi-step processes at our beam energy.
transfer reactions
gamma spectroscopy
10Be
differential cross section
Författare
Jacob G. Johansen
Aarhus Universitet
V. Bildstein
Technische Universität München
M. J. G. Borge
Consejo Superior de Investigaciones Científicas (CSIC)
CERN
M. Cubero
Consejo Superior de Investigaciones Científicas (CSIC)
J. Diriken
KU Leuven
J. Elseviers
KU Leuven
L.M. Fraile
Universidad Complutense de Madrid
H. O. U. Fynbo
Aarhus Universitet
L. P. Gaffney
CERN
University of Liverpool
R. Gernhauser
Technische Universität München
Björn Jonson
Chalmers, Fysik, Subatomär fysik och plasmafysik
G. T. Koldste
Aarhus Universitet
J. Konki
CERN
Helsinki Institute of Physics
T. Kröll
Technische Universität München
Technische Universität Darmstadt
R. Krücken
Technische Universität München
TRIUMF
D. Mücher
University of Guelph
Thomas Nilsson
Chalmers, Fysik, Subatomär fysik och plasmafysik
K. Nowak
Technische Universität München
J. Pakarinen
CERN
Helsinki Institute of Physics
V. Pesudo
Consejo Superior de Investigaciones Científicas (CSIC)
R. Raabe
KU Leuven
K. Riisager
Aarhus Universitet
M. Seidlitz
Universität zu Köln
O. Tengblad
Consejo Superior de Investigaciones Científicas (CSIC)
Hans Törnqvist
Chalmers, Fysik
D. Voulot
CERN
N. Warr
Universität zu Köln
K. Wimmer
Technische Universität München
University of Tokyo
H. De Witte
KU Leuven
Journal of Physics G: Nuclear and Particle Physics
0954-3899 (ISSN) 13616471 (eISSN)
Vol. 44 4 044009Experimentella studier av exotiska, lätta nukleära system
Vetenskapsrådet (VR) (2011-5324), 2012-01-01 -- 2014-12-31.
Ämneskategorier (SSIF 2011)
Subatomär fysik
Fysik
Fundament
Grundläggande vetenskaper
DOI
10.1088/1361-6471/aa5f28