Speaker
Dr
Alisher Sanetullaev
(Saint Mary's University, TRIUMF, Inha University in Tashkent)
Description
The unbound system $^{10}$Li is of great interest for the description of the structure of the Borromean neutron halo nucleus $^{11}$Li [1,2]. Borromean neutron halo nuclei are unusual weakly bound states of a core nucleus plus two neutrons. No transfer reaction experiment has been done so far which directly looks at the sub-component $^{10}$Li within $^{11}$Li. While earlier measurements have indicated possible resonances in $^{10}$Li [3-6], it is still not well established which resonance contributes to the ground state configuration of $^{11}$Li and by what spectroscopic factor. To obtain such information a decisive way can be investigating the transfer of one-neutron from $^{11}$Li.
The presentation will report observations on $^{10}$Li studied through the first measurement of the p($^{11}$Li,d) one-neutron transfer reaction at beam energy of 6A MeV. This was performed using a solid H2 target at the newly constructed IRIS facility at TRIUMF. The $^{10}$Li residue was populated strongly as a resonance with energy Er = 0.62 ± 0.04 MeV having a total width Γ = 0.33 ± 0.07 MeV. The angular distribution of this resonance is characterized by neutron occupying the 1p1/2 orbital. A DWBA analysis yields a spectroscopic factor of 0.67 ± 0.12 for p1/2 removal strength from the ground state of $^{11}$Li to the region of the peak.
The presentation will report observations on $^{10}$Li studied through the first measurement of the p($^{11}$Li,d) one-neutron transfer reaction at beam energy of 6A MeV. This was performed using a solid H2 target at the newly constructed IRIS facility at TRIUMF. The $^{10}$Li residue was populated strongly as a resonance with energy Er = 0.62 ± 0.04 MeV having a total width Γ = 0.33 ± 0.07 MeV. The angular distribution of this resonance is characterized by neutron occupying the 1p1/2 orbital. A DWBA analysis yields a spectro- scopic factor of 0.67 ± 0.12 for p1/2 removal strength from the ground state of $^{11}$Li to the region of the peak.
[1] E. Garrido, D.V. Fedorov, A.S. Jensen, Nucl. Phys. A 700 (2002) 117.
[2] I. Tanihata, H. Savajols, R. Kanungo, Prog. in Part. and Nucl. Phys. 68 (2013) 215.
[3] H.B. Jeppesen, A.M. Moro, U.C. Bergmann, et al., Phys. Lett. B 642 (2006) 449.
[4] K.H. Wilcox, R.B. Weisenmiller, G.J. Wozniak, et al., Phys. Lett. B 59 (1975) 142.
[5] A.I. Amelin, M.G. Gornov, Yu.B. Gurov, et al., Yad. Fiz. 52 (1990) 1231.
[6] M. Zinser, F. Humbert, T. Nilsson, et al., Nuclear Phys. A 619 (1997) 151176.
Primary authors
Dr
Alisher Sanetullaev
(Saint Mary's University, TRIUMF, Inha University in Tashkent)
Prof.
Rituparna Kanungo
(Saint Mary's University)
Co-authors
Mr
Aaron Gallant
(TRIUMF)
Prof.
Alan Chen
(McMaster University)
Prof.
Alan sHOTTER
(University of Edinburgh)
Dr
Alexander Rojas
(TRIUMF)
Dr
Baharak Hadinia
(University of Guelph)
Dr
Barry Davids
(TRIUMF)
Dr
Carl Unsworth
(TRIUMF)
Prof.
Corina Andreoiu
(Simon Fraser University)
Dr
David Miller
(TRIUMF)
Ms
E. McNeice
(Saint Mary's University)
Dr
Greg Hackman
(TRIUMF)
Prof.
Gregory Christian
(Texas AM University - Cyclotron Institute)
Dr
Herve Savajols
(GANIL)
Dr
Ian Thompson
(LLNL)
Prof.
Isao Tanihata
(RCNP, Beihang University)
Ms
J. Purcell
(Saint Mary's University)
Mr
Jaspreet Randhawa
(Saint Mary's University, Halifax)
Dr
Jennifer Fallis
(TRIUMF)
Dr
Jonathan Lighthall
(TRIUMF)
Mr
Julien Fortin
(Saint Mary's University, University of Laval)
Mr
Junki Tanaka
(Research Center for Nuclear Physics)
Dr
Martin Alcorta
(TRIUMF)
Mr
Matthew Keefe
(Saint Mary's University)
Dr
Naomi Galinsky
(TRIUMF)
Prof.
Paul Garrett
(University of Guelph)
Dr
Peter Bender
(TRIUMF)
Dr
Philip Voss
(TRIUMF)
Dr
Reiner Kruecken
(TRIUMF)
Dr
Shigeru Ishimoto
(KEK)
Dr
Thomas Roger
(GANIL)
Dr
Zhimin Wang
(TRIUMF)
