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Title: First observation of the 13 Li ground state

Abstract

The ground state of neutron-rich unbound 13Li was observed for the first time in a one-proton removal reaction from 14Be at a beam energy of 53.6 MeV/u. The 13Li ground state was reconstructed from 11Li and two neutrons giving a resonance energy of 120+60 −80 keV. All events involving single- and double-neutron interactions in the Modular Neutron Array (MoNA) were analyzed, simulated, and fitted self-consistently. The three-body ( 11Li + n + n) correlations within Jacobi coordinates showed strong dineutron characteristics. The decay energy spectrum of the intermediate 12Li system (11Li + n) was described with an s-wave scattering length of greater than −4 fm, which is a smaller absolute value than reported in a previous measurement.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Nuclear Science and Security Consortium; Nuclear Science and Security Consortium, Berkely, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1454858
Alternate Identifier(s):
OSTI ID: 1101996; OSTI ID: 1454857
Grant/Contract Number:  
NA0000979
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 87; Journal Issue: 1; Journal ID: ISSN 0556-2813
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Kohley, Z., Lunderberg, E., DeYoung, P. A., Volya, A., Baumann, T., Bazin, D., Christian, G., Cooper, N. L., Frank, N., Gade, A., Hall, C., Hinnefeld, J., Luther, B., Mosby, S., Peters, W. A., Smith, J. K., Snyder, J., Spyrou, A., and Thoennessen, M. First observation of the 13 Li ground state. United States: N. p., 2013. Web. doi:10.1103/PhysRevC.87.011304.
Kohley, Z., Lunderberg, E., DeYoung, P. A., Volya, A., Baumann, T., Bazin, D., Christian, G., Cooper, N. L., Frank, N., Gade, A., Hall, C., Hinnefeld, J., Luther, B., Mosby, S., Peters, W. A., Smith, J. K., Snyder, J., Spyrou, A., & Thoennessen, M. First observation of the 13 Li ground state. United States. doi:10.1103/PhysRevC.87.011304.
Kohley, Z., Lunderberg, E., DeYoung, P. A., Volya, A., Baumann, T., Bazin, D., Christian, G., Cooper, N. L., Frank, N., Gade, A., Hall, C., Hinnefeld, J., Luther, B., Mosby, S., Peters, W. A., Smith, J. K., Snyder, J., Spyrou, A., and Thoennessen, M. Tue . "First observation of the 13 Li ground state". United States. doi:10.1103/PhysRevC.87.011304. https://www.osti.gov/servlets/purl/1454858.
@article{osti_1454858,
title = {First observation of the 13 Li ground state},
author = {Kohley, Z. and Lunderberg, E. and DeYoung, P. A. and Volya, A. and Baumann, T. and Bazin, D. and Christian, G. and Cooper, N. L. and Frank, N. and Gade, A. and Hall, C. and Hinnefeld, J. and Luther, B. and Mosby, S. and Peters, W. A. and Smith, J. K. and Snyder, J. and Spyrou, A. and Thoennessen, M.},
abstractNote = {The ground state of neutron-rich unbound 13Li was observed for the first time in a one-proton removal reaction from 14Be at a beam energy of 53.6 MeV/u. The 13Li ground state was reconstructed from 11Li and two neutrons giving a resonance energy of 120+60 −80 keV. All events involving single- and double-neutron interactions in the Modular Neutron Array (MoNA) were analyzed, simulated, and fitted self-consistently. The three-body ( 11Li + n + n) correlations within Jacobi coordinates showed strong dineutron characteristics. The decay energy spectrum of the intermediate 12Li system (11Li + n) was described with an s-wave scattering length of greater than −4 fm, which is a smaller absolute value than reported in a previous measurement.},
doi = {10.1103/PhysRevC.87.011304},
journal = {Physical Review. C, Nuclear Physics},
number = 1,
volume = 87,
place = {United States},
year = {2013},
month = {1}
}

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