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Title: Three-Body Correlations In 6He Revealed In The Quasi-Free Knockout Reaction 4He(6He,2{alpha})2n

Abstract

The 4He(6He,2{alpha})2n reaction was studied in experiments designed for the observation of a quasi-free scattering (QFS) occurring between the {alpha} core of the Borromean 6He nuclei and the 4He target nuclei. The helium gas target cooled down to 14 K was bombarded by a 25A MeV secondary beam of 6He nuclei produced at the fragment separator ACCULINNA (Dubna). The data were analyzed with the use of the Plane Wave Impulse Approximation (PWIA) and the three-body wave function of 6He and taking into account the n - n final state interaction. Correlation obtained in the reaction exit channel between the momentum values characteristic to the {alpha}-2n and n-n subsystems were found to be consistent with the PWIA predictions. This suggests that QFS could be suitable for the study of other Borromean nuclei.

Authors:
; ; ; ; ; ; ; ; ; ; ;  [1];  [2];  [3]; ;  [4]
  1. Flerov Laboratory of Nuclear Reactions, JINR, 141980 Dubna (Russian Federation)
  2. Kurchatov Institute, Kurchatov sq. 1, 123182 Moscow (Russian Federation)
  3. RIKEN, Hirosawa 2-1, Wako, Saitama 351-0198 (Japan)
  4. GANIL, BP 5027, F-14076 Caen Cedex 5 (France)
Publication Date:
OSTI Identifier:
21061830
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 912; Journal Issue: 1; Conference: International symposium on exotic nuclei, Khanty-Mansiysk (Russian Federation), 17-22 Jul 2006; Other Information: DOI: 10.1063/1.2746579; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ALPHA REACTIONS; CORRELATIONS; FINAL-STATE INTERACTIONS; HELIUM 4; HELIUM 6; IMPULSE APPROXIMATION; KNOCK-OUT REACTIONS; MEV RANGE; NUCLEAR STRUCTURE; QUASI-FREE REACTIONS; SCATTERING; SECONDARY BEAMS; THREE-BODY PROBLEM; WAVE FUNCTIONS; WAVE PROPAGATION

Citation Formats

Sidorchuk, S. I., Fomichev, A. S., Golovkov, M. S., Gorshkov, V. A., Gorshkov, A. V., Krupko, S. A., Oganessian, Yu. Ts., Rodin, A. M., Slepnev, R. S., Stepantsov, S. V., Ter-Akopian, G. M., Wolski, R., Korsheninnikov, A. A., Nikolskii, E. Yu., Roussel-Chomaz, P., and Mittig, W. Three-Body Correlations In 6He Revealed In The Quasi-Free Knockout Reaction 4He(6He,2{alpha})2n. United States: N. p., 2007. Web. doi:10.1063/1.2746579.
Sidorchuk, S. I., Fomichev, A. S., Golovkov, M. S., Gorshkov, V. A., Gorshkov, A. V., Krupko, S. A., Oganessian, Yu. Ts., Rodin, A. M., Slepnev, R. S., Stepantsov, S. V., Ter-Akopian, G. M., Wolski, R., Korsheninnikov, A. A., Nikolskii, E. Yu., Roussel-Chomaz, P., & Mittig, W. Three-Body Correlations In 6He Revealed In The Quasi-Free Knockout Reaction 4He(6He,2{alpha})2n. United States. doi:10.1063/1.2746579.
Sidorchuk, S. I., Fomichev, A. S., Golovkov, M. S., Gorshkov, V. A., Gorshkov, A. V., Krupko, S. A., Oganessian, Yu. Ts., Rodin, A. M., Slepnev, R. S., Stepantsov, S. V., Ter-Akopian, G. M., Wolski, R., Korsheninnikov, A. A., Nikolskii, E. Yu., Roussel-Chomaz, P., and Mittig, W. Tue . "Three-Body Correlations In 6He Revealed In The Quasi-Free Knockout Reaction 4He(6He,2{alpha})2n". United States. doi:10.1063/1.2746579.
@article{osti_21061830,
title = {Three-Body Correlations In 6He Revealed In The Quasi-Free Knockout Reaction 4He(6He,2{alpha})2n},
author = {Sidorchuk, S. I. and Fomichev, A. S. and Golovkov, M. S. and Gorshkov, V. A. and Gorshkov, A. V. and Krupko, S. A. and Oganessian, Yu. Ts. and Rodin, A. M. and Slepnev, R. S. and Stepantsov, S. V. and Ter-Akopian, G. M. and Wolski, R. and Korsheninnikov, A. A. and Nikolskii, E. Yu. and Roussel-Chomaz, P. and Mittig, W.},
abstractNote = {The 4He(6He,2{alpha})2n reaction was studied in experiments designed for the observation of a quasi-free scattering (QFS) occurring between the {alpha} core of the Borromean 6He nuclei and the 4He target nuclei. The helium gas target cooled down to 14 K was bombarded by a 25A MeV secondary beam of 6He nuclei produced at the fragment separator ACCULINNA (Dubna). The data were analyzed with the use of the Plane Wave Impulse Approximation (PWIA) and the three-body wave function of 6He and taking into account the n - n final state interaction. Correlation obtained in the reaction exit channel between the momentum values characteristic to the {alpha}-2n and n-n subsystems were found to be consistent with the PWIA predictions. This suggests that QFS could be suitable for the study of other Borromean nuclei.},
doi = {10.1063/1.2746579},
journal = {AIP Conference Proceedings},
number = 1,
volume = 912,
place = {United States},
year = {Tue May 22 00:00:00 EDT 2007},
month = {Tue May 22 00:00:00 EDT 2007}
}