Probing the Z=6 spin-orbit shell gap with (p,2p) quasi-free scattering reactions

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. Caamano; C. Caesar; E. Casarejos; W. Catford; J. Cederkall; S. Chakraborty; L. Chulkov; D. Cortina-Gil; E. Cravo; R. Crespo; U. Datta Pramanik; Dillmann; P. Diaz Fernandez; Z. Elekes; J. Enders; F. Farinon; L. M. Fraile; D. Galaviz; H. Geissel; R. Gernhaeuser; P. Golubev; K. Goebel; M. Heil; M. Heine; A. Heinz; A. Henriques; M. Holl; H. T. Johansson; B. Jonson; N. Kalantar-Nayestanaki; R. Kanungo; A. Kelic-Heil; T. Kroll; N. Kurz; C. Langer; T. Le Bleis; J. Machado; J. Marganiec-Galazka; E. Nacher; T. Nilsson; C. Nociforo; 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; R3B Collaboration

doi:10.1016/j.physletb.2020.135748

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Probing the Z=6 spin-orbit shell gap with (p,2p) quasi-free scattering reactions

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Probing the Z=6 spin-orbit shell gap with (p,2p) quasi-free scattering reactions

Syndikus, M. Petri, A. O. Macchiavelli, S. Paschalis, C. A. Bertulani, T. Aumann, H. Alvarez-Pol, L. Atar, S. Beceiro-Novo, J. Benlliure, …

Physics letters. B, Vol.809(C), p.135748

10/10/2020

DOI: https://doi.org/10.1016/j.physletb.2020.135748

Abstract

Astronomy & Astrophysics

Physical Sciences

Physics

Physics, Nuclear

Physics, Particles & Fields

Science & Technology

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 N-A(p,2p)CA-1 quasi-free scattering reactions to measure the proton component of the 2(1)(+) state of C-16,C-18,C-20. The experimental findings support the notion of a moderate reduction of the proton 1p(1/2) - 1p(3/2) spin-orbit splitting, at variance to recent claims for a prevalent Z = 6 magic number towards the neutron dripline. (C) 2020 The Authors. Published by Elsevier B.V.

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Title: Probing the Z=6 spin-orbit shell gap with (p,2p) quasi-free scattering reactions
Creators: Syndikus - Tech Univ Darmstadt, Inst Kernphys, Darmstadt, Germany
M. Petri - University of York
A. O. Macchiavelli - Lawrence Berkeley National Laboratory
S. Paschalis - University of York
C. A. Bertulani - Texas A&M University – Commerce
T. Aumann - GSI Helmholtz Centre for Heavy Ion Research
H. Alvarez-Pol - Universidade de Santiago de Compostela
L. Atar - Technical University of Darmstadt
S. Beceiro-Novo - Universidade de Santiago de Compostela
J. Benlliure - Universidade de Santiago de Compostela
J. M. Boillos - Universidade de Santiago de Compostela
K. Boretzky - GSI Helmholtz Centre for Heavy Ion Research
M. J. G. Borge - Instituto de Estructura de la Materia
B. A. Brown - Michigan State University
M. Caamano - Universidade de Santiago de Compostela
C. Caesar - GSI Helmholtz Centre for Heavy Ion Research
E. Casarejos - University of Vigo
W. Catford - University of Surrey
J. Cederkall - Lund University
S. Chakraborty - Saha Institute of Nuclear Physics
L. Chulkov - Universidade de Santiago de Compostela
D. Cortina-Gil - Lund University
E. Cravo - Lund University
R. Crespo - Saha Institute of Nuclear Physics
U. Datta Pramanik - Universidade de Santiago de Compostela
Dillmann - GSI Helmholtzzentrum Schwerionenforsch, Darmstadt, Germany
P. Diaz Fernandez - Universidade de Santiago de Compostela
Z. Elekes - GSI Helmholtz Centre for Heavy Ion Research
J. Enders - Lund University
F. Farinon - University of Surrey
L. M. Fraile - Univ Complutense Madrid, Grp Fis Nucl, Madrid, Spain
D. Galaviz - Lund University
H. Geissel - GSI Helmholtzzentrum Schwerionenforsch, Darmstadt, Germany
R. Gernhaeuser - Ludwig Maximilian University of Munich
P. Golubev - Universidade de Santiago de Compostela
K. Goebel - Goethe Univ Frankfurt, Frankfurt, Germany
M. Heil - Universidade de Santiago de Compostela
M. Heine - Universidade de Santiago de Compostela
A. Heinz - Chalmers University of Technology
A. Henriques - Lab Instrumentat & Expt Particle Phys, LIP Lisbon, P-1469003 Lisbon, Portugal
M. Holl - Universidade de Santiago de Compostela
H. T. Johansson - Chalmers University of Technology
B. Jonson - Saha Institute of Nuclear Physics
N. Kalantar-Nayestanaki - University of Groningen
R. Kanungo - Saha Institute of Nuclear Physics
A. Kelic-Heil - GSI Helmholtzzentrum Schwerionenforsch, Darmstadt, Germany
T. Kroll - Saha Institute of Nuclear Physics
N. Kurz - Universidade de Santiago de Compostela
C. Langer - Saha Institute of Nuclear Physics
T. Le Bleis - Saha Institute of Nuclear Physics
J. Machado - Lund University
J. Marganiec-Galazka - Tech Univ Darmstadt, Inst Kernphys, Darmstadt, Germany
E. Nacher - Lund University
T. Nilsson - Saha Institute of Nuclear Physics
C. Nociforo - Saha Institute of Nuclear Physics
Panin - Tech Univ Darmstadt, Inst Kernphys, Darmstadt, Germany
A. Perea - CSIC, Inst Estruct Mat, Madrid, Spain
S. B. Pietri - Universidade de Santiago de Compostela
R. Plag - Saha Institute of Nuclear Physics
A. Rahaman - Saha Inst Nucl Phys, 1-AF Bidhan Nagar, Kolkata 700064, India
R. Reifarth - Saha Institute of Nuclear Physics
A. Revel - Michigan State University
G. Ribeiro - Instituto de Estructura de la Materia
C. Rigollet - Saha Institute of Nuclear Physics
D. M. Rossi - Tech Univ Darmstadt, Inst Kernphys, Darmstadt, Germany
D. Savran - Lund University
H. Scheit - Saha Institute of Nuclear Physics
H. Simon - Saha Institute of Nuclear Physics
O. Sorlin - Saha Institute of Nuclear Physics
O. Tengblad - Saha Institute of Nuclear Physics
Y. Togano - Saha Institute of Nuclear Physics
M. Vandebrouck - Universidade de Santiago de Compostela
V. Volkov - Tech Univ Darmstadt, Inst Kernphys, Darmstadt, Germany
F. Wamers - University of Surrey
C. Wheldon - Saha Institute of Nuclear Physics
G. L. Wilson - Univ Surrey, Dept Phys, Guildford, Surrey, England
J. S. Winfield - GSI Helmholtzzentrum Schwerionenforsch, Darmstadt, Germany
H. Weick - Saha Institute of Nuclear Physics
P. Woods - Universidade de Santiago de Compostela
D. Yakorev - Lund University
M. Zhukov - Universidade de Santiago de Compostela
A. Zilges - University of Cologne
K. Zuber - Tech Univ Dresden, Inst Kern & Teilchenphys, Dresden, Germany
R3B Collaboration
Publication Details: Physics letters. B, Vol.809(C), p.135748
Publisher: Elsevier
Number of pages: 9
Date published: 10/10/2020
Grant note: 1415656 / U.S. NSF; National Science Foundation (NSF) DE-AC02-05CH11231 / U.S. Department of Energy, Office of Nuclear Physics; United States Department of Energy (DOE) 05P15RDFN1; 05P15WOFNA; 05P19RDFN1 / German Federal Ministry of Education and Research (BMBF); Federal Ministry of Education & Research (BMBF) MDM-2016.0692 / Undidad de Excelencia Maria de Maeztu ST/L005751/1; ST/M006433/1; ST/P003885/1 / STFC; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) DE-FG02-08ER41533 / U.S. DOE; United States Department of Energy (DOE) State of Hesse through the LOEWE center HIC for FAIR 279384907 - SFB 1245 / Deutsche Forschungsgemeinschaft (DFG, German Research Foundation); German Research Foundation (DFG) ST/M006433/1; ST/P003885/1 / UK STFC; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) GRC ED431C 2017/54 / Xunta de Galicia UF150476 / Royal Society GSI-TU Darmstadt cooperation agreement 621-2011-5324 / Swedish Research Council FPA2015-64969-P; FPA2015-69640-C2-1-P; FPA2017-87568-P; PGC2018-099746-B-C21; RTI2018-098868-B-I00; MDM-2016.0692 / Spanish research grants (Ministerio Ciencia e Innovacion) Helmholtz-Gemeinschaft through the graduate school HGS-H Ie and Young Investigators Grants
Identifiers: 99822612402346
Academic Unit: School of Maths and Physics
Language: English
Resource Type: Journal article

Probing the Z=6 spin-orbit shell gap with (p,2p) quasi-free scattering reactions

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