Comparison of electromagnetic and nuclear dissociation of Ne 17
Artikel i vetenskaplig tidskrift, 2018

The Borromean drip-line nucleus Ne17 has been suggested to possess a two-proton halo structure in its ground state. In the astrophysical rp-process, where the two-proton capture reaction O15(2p,γ)Ne17 plays an important role, the calculated reaction rate differs by several orders of magnitude between different theoretical approaches. To add to the understanding of the Ne17 structure we have studied nuclear and electromagnetic dissociation. A 500 MeV/u Ne17 beam was directed toward lead, carbon, and polyethylene targets. Oxygen isotopes in the final state were measured in coincidence with one or two protons. Different reaction branches in the dissociation of Ne17 were disentangled. The relative populations of s and d states in F16 were determined for light and heavy targets. The differential cross section for electromagnetic dissociation (EMD) shows a continuous internal energy spectrum in the three-body system O15+2p. The Ne17 EMD data were compared to current theoretical models. None of them, however, yields satisfactory agreement with the experimental data presented here. These new data may facilitate future development of adequate models for description of the fragmentation process.

Författare

F. Wamers

Technische Universität Darmstadt

Helmholtz

J. Marganiec

Technische Universität Darmstadt

Helmholtz

F. Aksouh

Helmholtz

King Saud University

Y. Aksyutina

Helmholtz

H. Alvarez-Pol

Universidade de Santiagode Compostela

T. Aumann

Technische Universität Darmstadt

Helmholtz

S. Beceiro-Novo

Universidade de Santiagode Compostela

C.A. Bertulani

Texas A&M University

K. Boretzky

Helmholtz

M. Borge

CSIC - Instituto de Estructura de la Materia (IEM)

M. Chartier

University of Liverpool

A. Chatillon

Helmholtz

L. V. Chulkov

Helmholtz

National Research Centre "Kurchatov Institute"

D. Cortina-Gil

Universidade de Santiagode Compostela

H. Emling

Helmholtz

O. Ershova

Johann Wolfgang Goethe Universität Frankfurt am Main

Helmholtz

L. M. Fraile

Universidad Complutense de Madrid

H. O. U. Fynbo

Aarhus Universitet

D. Galaviz

CSIC - Instituto de Estructura de la Materia (IEM)

H. Geissel

Helmholtz

M. Heil

Helmholtz

D.H.H. Hoffmann

Technische Universität Darmstadt

J. Hoffman

Helmholtz

Håkan T Johansson

Chalmers, Fysik, Subatomär fysik och plasmafysik

Björn Jonson

Chalmers, Fysik, Subatomär fysik och plasmafysik

C. Karagiannis

Helmholtz

O. A. Kiselev

Helmholtz

J. V. Kratz

Johannes Gutenberg-Universität Mainz

R. Kulessa

Uniwersytet Jagiellonski w Krakowie

N. Kurz

Helmholtz

C. Langer

Helmholtz

Johann Wolfgang Goethe Universität Frankfurt am Main

Mattias Lantz

Uppsala universitet

T. Le Bleis

Helmholtz

C. Lehr

Technische Universität Darmstadt

R.C. Lemmon

Daresbury Laboratory

Y. Litvinov

Helmholtz

K. Mahata

Helmholtz

C. Muntz

Helmholtz

Thomas Nilsson

Chalmers, Fysik

C. Nociforo

Helmholtz

W. Ott

Helmholtz

V. Panin

Helmholtz

Technische Universität Darmstadt

S. Paschalis

University of York

University of Liverpool

A. Perea

CSIC - Instituto de Estructura de la Materia (IEM)

R. Plag

Johann Wolfgang Goethe Universität Frankfurt am Main

Helmholtz

R. Reifarth

Helmholtz

Johann Wolfgang Goethe Universität Frankfurt am Main

A. Richter

Technische Universität Darmstadt

K. Riisager

Aarhus Universitet

C. Rodriguez-Tajes

Universidade de Santiagode Compostela

D. Rossi

Technische Universität Darmstadt

Helmholtz

D. Savran

Helmholtz

Frankfurt Institute for Advanced Studies

G. Schrieder

Technische Universität Darmstadt

H. Simon

Helmholtz

J. Stroth

Johann Wolfgang Goethe Universität Frankfurt am Main

K. Summerer

Helmholtz

O. Tengblad

CSIC - Instituto de Estructura de la Materia (IEM)

S. Typel

Technische Universität Darmstadt

Helmholtz

H. Weick

Helmholtz

M. Wiescher

University of Notre Dame

C. Wimmer

Johann Wolfgang Goethe Universität Frankfurt am Main

Helmholtz

Physical Review C

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

Vol. 97 3 034612

Experimentella studier av exotiska, lätta nukleära system

Vetenskapsrådet (VR), 2012-01-01 -- 2014-12-31.

Exotiska nukleära system vid gränsen för existens - fysik i frontlinjen med perspektiv mot FAIR

Vetenskapsrådet (VR), 2018-01-01 -- 2021-12-31.

Ämneskategorier

Subatomär fysik

Fysik

Fundament

Grundläggande vetenskaper

DOI

10.1103/PhysRevC.97.034612

Mer information

Senast uppdaterat

2020-09-15