학술논문
Probing the Z = 6 spin-orbit shell gap with (p,2p) quasi-free scattering reactions
Document Type
article
Author
I. Syndikus; M. Petri; A.O. Macchiavelli; S. Paschalis; C.A. Bertulani; T. Aumann; H. Alvarez-Pol; L. Atar; S. Beceiro-Novo; J. Benlliure; J.M. Boillos; K. Boretzky; M.J.G. Borge; B.A. Brown; M. Caamaño; C. Caesar; E. Casarejos; W. Catford; J. Cederkall; S. Chakraborty; L.V. Chulkov; D. Cortina-Gil; E. Cravo; R. Crespo; U. Datta Pramanik; I. Dillmann; P. Díaz Fernández; Z. Elekes; J. Enders; F. Farinon; L.M. Fraile; D. Galaviz; H. Geissel; R. Gernhäuser; P. Golubev; K. Göbel; M. Heil; M. Heine; A. Heinz; A. Henriques; M. Holl; H.T. Johansson; B. Jonson; N. Kalantar-Nayestanaki; R. Kanungo; A. Kelic-Heil; T. Kröll; N. Kurz; C. Langer; T. Le Bleis; J. Machado; J. Marganiec-Gałązka; E. Nacher; T. Nilsson; C. Nociforo; V. Panin; A. Perea; S.B. Pietri; R. Plag; A. Rahaman; R. Reifarth; A. Revel; G. Ribeiro; C. Rigollet; D.M. Rossi; D. Savran; H. Scheit; H. Simon; O. Sorlin; O. Tengblad; Y. Togano; M. Vandebrouck; V. Volkov; F. Wamers; C. Wheldon; G.L. Wilson; J.S. Winfield; H. Weick; P. Woods; D. Yakorev; M. Zhukov; A. Zilges; K. Zuber
Source
Physics Letters B, Vol 809, Iss , Pp 135748- (2020)
Subject
Language
English
ISSN
0370-2693
Abstract
The evolution of the traditional nuclear magic numbers away from the valley of stability is an active field of research. Experimental efforts focus on providing key spectroscopic information that will shed light into the structure of exotic nuclei and understanding the driving mechanism behind the shell evolution. In this work, we investigate the Z=6 spin-orbit shell gap towards the neutron dripline. To do so, we employed NA(p,2p)CA−1 quasi-free scattering reactions to measure the proton component of the 21+ state of 16,18,20C. The experimental findings support the notion of a moderate reduction of the proton 1p1/2−1p3/2 spin-orbit splitting, at variance to recent claims for a prevalent Z=6 magic number towards the neutron dripline.