Quasifree (p, pN) scattering of light neutron-rich nuclei near N=14
Artikel i vetenskaplig tidskrift, 2018

Background: For many years, quasifree scattering reactions in direct kinematics have been extensively used to study the structure of stable nuclei, demonstrating the potential of this approach. The (RB)-B-3 collaboration has performed a pilot experiment to study quasifree scattering reactions in inverse kinematics for a stable C-12 beam. The results from that experiment constitute the first quasifree scattering results in inverse and complete kinematics. This technique has lately been extended to exotic beams to investigate the evolution of shell structure, which has attracted much interest due to changes in shell structure if the number of protons or neutrons is varied. Purpose: In this work we investigate for the first time the quasifree scattering reactions (p, pn) and (p, 2p) simultaneously for the same projectile in inverse and complete kinematics for radioactive beams with the aim to study the evolution of single-particle properties from N = 14 to N = 15. Method: The structure of the projectiles O-23, O-22, and N-21 has been studied simultaneously via (p, pn) and (p, 2p) quasifree knockout reactions in complete inverse kinematics, allowing the investigation of proton and neutron structure at the same time. The experimental data were collected at the (RB)-B-3-LAND setup at GSI at beam energies of around 400 MeV/u. Two key observables have been studied to shed light on the structure of those nuclei: the inclusive cross sections and the corresponding momentum distributions. Conclusions: The knockout reactions (p, pn) and (p, 2p) with radioactive beams in inverse kinematics have provided important and complementary information for the study of shell evolution and structure. For the (p, pn) channels, indications of a change in the structure of these nuclei moving from N = 14 to N = 15 have been observed, i.e., from the 0d(5/2) shell to the 1s(1/2). This supports previous observations of a subshell closure at N = 14 for neutron-rich oxygen isotopes and its weakening for the nitrogen isotopes.

Författare

Paloma Diaz Fernandez

Universidade de Santiagode Compostela

Chalmers, Fysik, Subatomär fysik och plasmafysik

Julius Hagdahl

Unknown organization

Andreas Martin Heinz

Chalmers, Fysik, Subatomär fysik och plasmafysik

Håkan T Johansson

Chalmers, Fysik, Subatomär fysik och plasmafysik

Björn Jonson

Chalmers, Fysik, Subatomär fysik och plasmafysik

Simon Lindberg

Chalmers, Fysik, Subatomär fysik och plasmafysik

Thomas Nilsson

Chalmers, Fysik, Subatomär fysik och plasmafysik

Ronja Thies

Chalmers, Fysik, Subatomär fysik och plasmafysik

M. Zhukov

Unknown organization

H. Alvarez-Pol

Universidade de Santiagode Compostela

J. Benlliure

Universidade de Santiagode Compostela

J. M. Boillos

Universidade de Santiagode Compostela

M. Caamano

Universidade de Santiagode Compostela

P. Cabanelas

Universidade de Santiagode Compostela

D. Cortina-Gil

Universidade de Santiagode Compostela

B. Fernandez-Dominguez

Universidade de Santiagode Compostela

B. Pietras

Universidade de Santiagode Compostela

R. Crespo

Inst Super Tecn

Universidade de Lisboa

E. Cravo

Universidade de Lisboa

L. Atar

Technische Universität Darmstadt

T. Aumann

Technische Universität Darmstadt

GSI Helmholtzzentrum Schwerionenforsch

C. Caesar

Technische Universität Darmstadt

GSI Helmholtzzentrum Schwerionenforsch

J. Enders

Technische Universität Darmstadt

M. Heine

Technische Universität Darmstadt

M. Holl

Technische Universität Darmstadt

A. Hufnagel

Technische Universität Darmstadt

A. Ignatov

Technische Universität Darmstadt

T. Kroell

Technische Universität Darmstadt

A. Movsesyan

Technische Universität Darmstadt

V. Panin

Technische Universität Darmstadt

S. Paschalis

Technische Universität Darmstadt

University of York

M. Petri

Technische Universität Darmstadt

University of York

H. Scheit

Technische Universität Darmstadt

I. Syndikus

Technische Universität Darmstadt

V. Volkov

Technische Universität Darmstadt

F. Wamers

Technische Universität Darmstadt

GSI Helmholtzzentrum Schwerionenforsch

A. Deltuva

Vilniaus universitetas

D. Jurciukonis

Vilniaus universitetas

K. Boretzky

GSI Helmholtzzentrum Schwerionenforsch

I. Dillmann

Justus Liebig University Giessen

GSI Helmholtzzentrum Schwerionenforsch

A. Estrade

St Marys Univ

GSI Helmholtzzentrum Schwerionenforsch

F. Farinon

GSI Helmholtzzentrum Schwerionenforsch

H. Geissel

GSI Helmholtzzentrum Schwerionenforsch

M. Heil

GSI Helmholtzzentrum Schwerionenforsch

A. Kelic-Heil

GSI Helmholtzzentrum Schwerionenforsch

N. Kurz

GSI Helmholtzzentrum Schwerionenforsch

J. Marganiec

GSI Helmholtzzentrum Schwerionenforsch

C. Nociforo

GSI Helmholtzzentrum Schwerionenforsch

S. Pietri

GSI Helmholtzzentrum Schwerionenforsch

D. Rossi

GSI Helmholtzzentrum Schwerionenforsch

H. Simon

GSI Helmholtzzentrum Schwerionenforsch

H. Weick

GSI Helmholtzzentrum Schwerionenforsch

J. S. Winfield

GSI Helmholtzzentrum Schwerionenforsch

V. Avdeichikov

Lunds universitet

J. Cederkall

Lunds universitet

P. Golubev

Lunds universitet

A. Knyazev

Lunds universitet

S. Beceiro-Novo

Michigan State Univ, Natl Superconducting Cyclotron Lab

D. Bemmerer

Helmholtz Zentrum Dresden Rossendorf

Z. Elekes

Helmholtz Zentrum Dresden Rossendorf

M. Roeder

Helmholtz Zentrum Dresden Rossendorf

Tech Univ

A. Wagner

Helmholtz Zentrum Dresden Rossendorf

D. Yakorev

Helmholtz Zentrum Dresden Rossendorf

C. A. Bertulani

Texas A&M Univ, Dept Phys & Astron

M. J. G. Borge

CSIC

E. Nacher

CSIC

A. Perea

CSIC

G. Ribeiro

CSIC

O. Tengblad

CSIC

E. Casarejos

Universidad de Vigo

W. Catford

University of Surrey

G. Wilson

University of Surrey

M. Chartier

University of Liverpool

J. T. Taylor

University of Liverpool

L. V. Chulkov

National Research Centre "Kurchatov Institute"

E. Nikolskii

National Research Centre "Kurchatov Institute"

U. Datta Pramanik

Saha Institute of Nuclear Physics

O. Ershova

Johann Wolfgang Goethe Universität Frankfurt am Main

K. Goebel

Johann Wolfgang Goethe Universität Frankfurt am Main

T. Heftrich

Johann Wolfgang Goethe Universität Frankfurt am Main

C. Langer

Johann Wolfgang Goethe Universität Frankfurt am Main

R. Plag

Johann Wolfgang Goethe Universität Frankfurt am Main

R. Reifarth

Johann Wolfgang Goethe Universität Frankfurt am Main

R. Kanungo

St Marys Univ

L. M. Fraile

Universidad Complutense de Madrid

M. Freer

University of Birmingham

C. Wheldon

University of Birmingham

D. Galaviz

Universidade de Lisboa

Lipoxen Plc

A. Henriques

Lipoxen Plc

P. Velho

Lipoxen Plc

R. Gernhaeuser

Technische Universität München

T. Le Bleis

Technische Universität München

N. Kalantar-Nayestanaki

Rijksuniversiteit Groningen

A. Najafi

Rijksuniversiteit Groningen

C. Rigollet

Rijksuniversiteit Groningen

M. Labiche

STFC Daresbury Lab

R. Lemmon

STFC Daresbury Lab

J. Machado

Univ Nova Lisboa

D. Savran

FIAS

GSI Helmholtzzentrum Schwerionenforsch GmbH

Y. Togano

GSI Helmholtzzentrum Schwerionenforsch GmbH

A. M. Moro

University of Seville

K. Zuber

Tech Univ

O. Sorlin

CNRS

M. Vandebrouck

GANIL Grand Accelerateur National d'Ions Lourds

P. Woods

University of Edinburgh

A. Zilges

Universität zu Köln

Physical Review C

2469-9985 (ISSN) 2469-9993 (eISSN)

Vol. 97 024311

Ämneskategorier

Acceleratorfysik och instrumentering

Subatomär fysik

Atom- och molekylfysik och optik

DOI

10.1103/PhysRevC.97.024311