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Open Access item Structure of N22 and the N=14 subshell

Authors:Rodríguez-Tajes, C.
García Borge, María José
Pascual-Izarra, C.
Perea, Ángel
Tengblad, Olof
Zhukov, M.V.
Issue Date:2011
Publisher:American Physical Society
Citation:Physical Review C - Nuclear Physics 83 (2011)
Abstract: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 N22, 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 N21 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 N22 is a well-developed nuclear halo. The results also show that the N=14 subshell in N22 is somewhat reduced as compared to that of O23. © 2011 American Physical Society.
Identifiers:doi: 10.1103/PhysRevC.83.064313
issn: 0556-2813
Appears in Collections:(CFMAC-IEM) Artículos

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