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Title: One-Neutron Removal Measurement Reveals {sup 24}O as a New Doubly Magic Nucleus

Abstract

The first measurement of the momentum distribution for one-neutron removal from {sup 24}O at 920A MeV performed at GSI, Darmstadt is reported. The observed distribution has a width (FWHM) of 99{+-}4 MeV/c in the projectile rest frame and a one-neutron removal cross section of 63{+-}7 mb. The results are well explained with a nearly pure 2s{sub 1/2} neutron spectroscopic factor of 1.74{+-}0.19 within the eikonal model. This large s-wave probability shows a spherical shell closure thereby confirming earlier suggestions that {sup 24}O is a new doubly magic nucleus.

Authors:
;  [1]; ; ; ; ; ; ; ; ; ; ; ;  [2]; ; ;  [2];  [3]; ;  [4] more »;  [5] « less
  1. Astronomy and Physics Department, Saint Mary's University, Halifax, NS B3H 3C3 (Canada)
  2. GSI Helmholtzzentrum fuer Schwerionenforschung, D-64291 Darmstadt (Germany)
  3. (Germany)
  4. Justus-Liebig University, 35392 Giessen (Germany)
  5. Universidad de Santiago de Compostela, E-15706 Santiago de Compostella (Spain) (and others)
Publication Date:
OSTI Identifier:
21180378
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 102; Journal Issue: 15; Other Information: DOI: 10.1103/PhysRevLett.102.152501; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; CROSS SECTIONS; EIKONAL APPROXIMATION; MAGIC NUCLEI; MEV RANGE 10-100; NEUTRONS; OXYGEN 24; PROBABILITY; S WAVES; SPECTROSCOPIC FACTORS; SPHERICAL CONFIGURATION

Citation Formats

Kanungo, R., Perro, C., Nociforo, C., Aumann, T., Geissel, H., Gerl, J., Kindler, B., Litvinov, Y., Lommel, B., Mahata, K., Scheidenberger, C., Sun, B., Weick, H., Winkler, M., Prochazka, A., Farinon, F., Knoebel, R., Justus-Liebig University, 35392 Giessen, Boutin, D., Lenske, H., and Cortina-Gil, D. One-Neutron Removal Measurement Reveals {sup 24}O as a New Doubly Magic Nucleus. United States: N. p., 2009. Web. doi:10.1103/PHYSREVLETT.102.152501.
Kanungo, R., Perro, C., Nociforo, C., Aumann, T., Geissel, H., Gerl, J., Kindler, B., Litvinov, Y., Lommel, B., Mahata, K., Scheidenberger, C., Sun, B., Weick, H., Winkler, M., Prochazka, A., Farinon, F., Knoebel, R., Justus-Liebig University, 35392 Giessen, Boutin, D., Lenske, H., & Cortina-Gil, D. One-Neutron Removal Measurement Reveals {sup 24}O as a New Doubly Magic Nucleus. United States. doi:10.1103/PHYSREVLETT.102.152501.
Kanungo, R., Perro, C., Nociforo, C., Aumann, T., Geissel, H., Gerl, J., Kindler, B., Litvinov, Y., Lommel, B., Mahata, K., Scheidenberger, C., Sun, B., Weick, H., Winkler, M., Prochazka, A., Farinon, F., Knoebel, R., Justus-Liebig University, 35392 Giessen, Boutin, D., Lenske, H., and Cortina-Gil, D. Fri . "One-Neutron Removal Measurement Reveals {sup 24}O as a New Doubly Magic Nucleus". United States. doi:10.1103/PHYSREVLETT.102.152501.
@article{osti_21180378,
title = {One-Neutron Removal Measurement Reveals {sup 24}O as a New Doubly Magic Nucleus},
author = {Kanungo, R. and Perro, C. and Nociforo, C. and Aumann, T. and Geissel, H. and Gerl, J. and Kindler, B. and Litvinov, Y. and Lommel, B. and Mahata, K. and Scheidenberger, C. and Sun, B. and Weick, H. and Winkler, M. and Prochazka, A. and Farinon, F. and Knoebel, R. and Justus-Liebig University, 35392 Giessen and Boutin, D. and Lenske, H. and Cortina-Gil, D.},
abstractNote = {The first measurement of the momentum distribution for one-neutron removal from {sup 24}O at 920A MeV performed at GSI, Darmstadt is reported. The observed distribution has a width (FWHM) of 99{+-}4 MeV/c in the projectile rest frame and a one-neutron removal cross section of 63{+-}7 mb. The results are well explained with a nearly pure 2s{sub 1/2} neutron spectroscopic factor of 1.74{+-}0.19 within the eikonal model. This large s-wave probability shows a spherical shell closure thereby confirming earlier suggestions that {sup 24}O is a new doubly magic nucleus.},
doi = {10.1103/PHYSREVLETT.102.152501},
journal = {Physical Review Letters},
number = 15,
volume = 102,
place = {United States},
year = {Fri Apr 17 00:00:00 EDT 2009},
month = {Fri Apr 17 00:00:00 EDT 2009}
}