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Structure of 22N and the N=14 subshell

Rodriguez-Tajes, C. (author)
Cortina-Gil, D. (author)
Alvarez-Pol, H. (author)
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Aumann, T. (author)
Benjamim, E. (author)
Benlliure, J. (author)
Borge, M. J. G. (author)
Caamano, M. (author)
Casarejos, E. (author)
Chatillon, A. (author)
Chulkov, L. V. (author)
Eppinger, K. (author)
Faestermann, T. (author)
Gascon, M. (author)
Geissel, H. (author)
Gernhauser, R. (author)
Jonson, Björn, 1941 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Kanungo, R. (author)
Krucken, R. (author)
Kurtukian, T. (author)
Larsson, K. (author)
Maierbeck, P. (author)
Nilsson, Thomas, 1965 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Nociforo, C. (author)
Parfenova, Y. (author)
Pascual-Izarra, C. (author)
Perea, A. (author)
Perez-Loureiro, D. (author)
Prochazka, A. (author)
Schwertel, S. (author)
Simon, H. (author)
Summerer, K. (author)
Tengblad, O. (author)
Weick, H. (author)
Winkler, M. (author)
Zhukov, Mikhail, 1943 (author)
Chalmers tekniska högskola,Chalmers University of Technology
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 (creator_code:org_t)
2011
2011
English.
In: Physical Review C - Nuclear Physics. - 2469-9985 .- 2469-9993. ; 83:6
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • One-neutron knockout data for N18-22 are analyzed in the eikonal approximation of the Glauber model. The role of the s-d shell and the crossing of the N = 14 neutron subshell are discussed. Of particular interest is the nucleus N-22, where the knockout data provide a sensitive experimental test for a possible halo structure of its ground state. The observation of a narrow momentum distribution of the N-21 fragments, together with an essential 1s(1/2) contribution needed to describe the observed longitudinal-momentum distribution, allow the firm conclusion that the ground state of N-22 is a well-developed nuclear halo. The results also show that the N = 14 subshell in N-22 is somewhat reduced as compared to that of O-23.

Subject headings

NATURVETENSKAP  -- Fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

Keyword

neutron-rich nuclei
knockout
halo
be-11
cross-sections
fragmentation

Publication and Content Type

art (subject category)
ref (subject category)

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