Systematic investigation of projectile fragmentation using beams of unstable B and C isotopes
Journal article, 2016
Models describing nuclear fragmentation and fragmentation fission deliver important input for planning nuclear physics experiments and future radioactive ion beam facilities. These models are usually benchmarked against data from stable beam experiments. In the future, two-step fragmentation reactions with exotic nuclei as stepping stones are a promising tool for reaching the most neutron-rich nuclei, creating a need for models to describe also these reactions. Purpose: We want to extend the presently available data on fragmentation reactions towards the light exotic region on the nuclear chart. Furthermore, we want to improve the understanding of projectile fragmentation especially for unstable isotopes. Method: We have measured projectile fragments from C10,12-18 and B10-15 isotopes colliding with a carbon target. These measurements were all performed within one experiment, which gives rise to a very consistent data set. We compare our data to model calculations. Results: One-proton removal cross sections with different final neutron numbers (1pxn) for relativistic C10,12-18 and B10-15 isotopes impinging on a carbon target. Comparing model calculations to the data, we find that the epax code is not able to describe the data satisfactorily. Using abrabla07 on the other hand, we find that the average excitation energy per abraded nucleon needs to be decreased from 27 MeV to 8.1 MeV. With that decrease abrabla07 describes the data surprisingly well. Conclusions: Extending the available data towards light unstable nuclei with a consistent set of new data has allowed a systematic investigation of the role of the excitation energy induced in projectile fragmentation. Most striking is the apparent mass dependence of the average excitation energy per abraded nucleon. Nevertheless, this parameter, which has been related to final-state interactions, requires further study.
Author
Ronja Thies
Chalmers, Physics, Subatomic and Plasma Physics
Andreas Martin Heinz
Chalmers, Physics, Subatomic and Plasma Physics
T. Adachi
University of Groningen
Y. Aksyutina
Helmholtz
Technische Universität Darmstadt
J. Alcantara-Núñes
Universidade de Santiagode Compostela
S. Altstadt
Goethe University Frankfurt
H. Alvarez-Pol
Universidade de Santiagode Compostela
N. Ashwood
University of Birmingham
T. Aumann
Helmholtz
Technische Universität Darmstadt
V. Avdeichikov
Lund University
M. Barr
University of Birmingham
S. Beceiro-Novo
Michigan State University
D. Bemmerer
Helmholtz
J. Benlliure
Universidade de Santiagode Compostela
C.A. Bertulani
Texas A&M University
K. Boretzky
Helmholtz
M. J. G. Borge
CSIC - Instituto de Estructura de la Materia (IEM)
G. Burgunder
Grand Accélérateur National d'Ions Lourds (GANIL)
M. Camaño
Universidade de Santiagode Compostela
C. Caesar
Technische Universität Darmstadt
Helmholtz
E. Casarejos
University of Vigo
W. Catford
University of Surrey
J. Cederkäll
Lund University
S. Chakraborty
Saha Institute of Nuclear Physics
M. Chartier
University of Liverpool
L.V. Chulkov
National Research Centre "Kurchatov Institute"
Helmholtz
D. Cortina-Gil
Universidade de Santiagode Compostela
R. Crespo
University of Lisbon
U. Datta
Saha Institute of Nuclear Physics
Paloma Diaz Fernandez
Universidade de Santiagode Compostela
I. Dillmann
Justus Liebig University Giessen
Helmholtz
Z. Elekes
Hungarian Academy of Sciences
J. Enders
Technische Universität Darmstadt
O. Ershova
Goethe University Frankfurt
A. Estradé
Saint Mary's University
Helmholtz
F. Farinon
Helmholtz
L.M. Fraile
Complutense University
M. Freer
University of Birmingham
M. Freudenberger
Technische Universität Darmstadt
H. O. U. Fynbo
Aarhus University
D. Galaviz
University of Lisbon
H. Geissel
Helmholtz
Justus Liebig University Giessen
R. Gernhäuser
Technical University of Munich
K. Göbel
Goethe University Frankfurt
P. Golubev
Lund University
D. Gonzalez Diaz
Technische Universität Darmstadt
Julius Hagdahl
Chalmers, Physics
T. Heftrich
Goethe University Frankfurt
M. Heil
Helmholtz
M. Heine
Technische Universität Darmstadt
A. Henriques
University of Lisbon
M. Holl
Technische Universität Darmstadt
G. Ickert
Helmholtz
A. Ignatov
Technische Universität Darmstadt
B. Jakobsson
Lund University
Håkan T Johansson
Chalmers, Physics, Subatomic and Plasma Physics
Björn Jonson
Chalmers, Physics, Subatomic and Plasma Physics
N. Kalantar-Nayestanaki
University of Groningen
R. Kanungo
Saint Mary's University
R. Knöbel
Helmholtz
Justus Liebig University Giessen
T. Kröll
Technische Universität Darmstadt
R. Krücken
Technical University of Munich
J. Kurcewicz
Helmholtz
N. Kurz
Helmholtz
M. Labiche
Daresbury Laboratory
C. Langer
Goethe University Frankfurt
T. Le Bleis
Technical University of Munich
R. Lemmon
Daresbury Laboratory
O. Lepyoshkina
Technical University of Munich
Simon Lindberg
Chalmers, Physics, Subatomic and Plasma Physics
J. Machado
University of Lisbon
J. Marganiec
Helmholtz
Technische Universität Darmstadt
V. Maroussov
University of Cologne
M. Mostazo
Universidade de Santiagode Compostela
A. Movsesyan
Technische Universität Darmstadt
A. Najafi
University of Groningen
Thomas Nilsson
Chalmers, Physics, Subatomic and Plasma Physics
C. Nociforo
Helmholtz
V. Panin
Technische Universität Darmstadt
S. Paschalis
Technische Universität Darmstadt
A. Perea
CSIC - Instituto de Estructura de la Materia (IEM)
M. Petri
Technische Universität Darmstadt
S. Pietri
Helmholtz
R. Plag
Goethe University Frankfurt
A. Prochazka
Helmholtz
A. Rahaman
Saha Institute of Nuclear Physics
G. Rastrepina
Helmholtz
R. Reifarth
Goethe University Frankfurt
G. Ribeiro
CSIC - Instituto de Estructura de la Materia (IEM)
M.V. Ricciardi
Helmholtz
C. Rigollet
University of Groningen
K. Riisager
Aarhus University
M. Röder
Helmholtz
Technische Universität Dresden
M. Rossi
Helmholtz
J. Sanchez del Rio
CSIC - Instituto de Estructura de la Materia (IEM)
D. Savran
Helmholtz
H. Scheit
Technische Universität Darmstadt
H. Simon
Helmholtz
O. Sorlin
Grand Accélérateur National d'Ions Lourds (GANIL)
V. Stoica
University of Groningen
B. Streicher
University of Groningen
Helmholtz
J.T. Taylor
University of Liverpool
O. Tengblad
CSIC - Instituto de Estructura de la Materia (IEM)
S. Terashima
Helmholtz
Y. Togano
Helmholtz
E. Uberseder
University of Notre Dame
J. Van De Walle
University of Groningen
P. Velho
University of Lisbon
V. Volkov
National Research Centre "Kurchatov Institute"
Technische Universität Darmstadt
A. Wagner
Helmholtz
F. Wamers
Technische Universität Darmstadt
Helmholtz
H. Weick
Helmholtz
M. Weigand
Goethe University Frankfurt
C. Wheldon
University of Birmingham
G. Wilson
University of Surrey
C. Wimmer
Goethe University Frankfurt
J.S. Winfield
Helmholtz
P. Woods
University of Edinburgh
D. Yakorev
Helmholtz
Mikhail Zhukov
Chalmers, Physics, Subatomic and Plasma Physics
A. Zilges
University of Cologne
K. Zuber
Technische Universität Dresden
Physical Review C - Nuclear Physics
24699985 (ISSN) 24699993 (eISSN)
Vol. 93 5 054601Subject Categories
Subatomic Physics
Physical Sciences
Roots
Basic sciences
DOI
10.1103/PhysRevC.93.054601