Table Of ContentCollective Motion and
Phase Transitions in
Nuclear Systems
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Collective Motion and
Phase Transitions in
N uc lear Sys te m s
Proceedings of the
Predeal International Summer School in Nuclear Physics
Predeal, Romania 28 August - 9 September 2006
Editors
A A Raduta, V Baran,
University of Bucharest & NIPNE-HH, Romania
A C Gheorghe and I Ursu
NIPNE-HH, Romania
World Scientific
1:
NE W J E R S E Y - L O N D O N * S I N G A P O R E * B E l J l N G - S H A N G H A I * H O N G K O N G * T A I P E I * C H E N N A I
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COLLECTIVE MOTION AND PHASE TRANSITIONS IN NUCLEAR SYSTEMS
Proceedings of the Redeal International Summer School in Nuclear Physics
Copyright 0 2007 by World Scientific Publishing Co. Pte. Ltd.
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ISBN-I3 978-981-270-083-4
ISBN-I0 981-270-083-8
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V
PREFACE
This book contains the lectures given at the International Summer
School octive Motion and Phase Transitions in Nuclear Systems held in
Predeal, Romania, in the period of August 28- September 9, 2006. The
Nuclear Physics Schools organised by Institute of Physics and Nuclear En-
gineering are well known to physicists throughout the world due to their
long history and good reputation. The first edition took place in Bucharest
in 1964 and after five-year break the series continued regularily every sec-
ond year in Predeal. For some administrative reasons, in 1978, the location
of the school was changed from Predeal to Poiana Brasov. In 1991, how-
ever, we moved it back to Predeal and that happened since we wanted to
restore the good tradition and also to recover the excellent conditions we
had before.
This edition is organized by the University of Bucharest in collabora-
tion with the Intstitute of Physics and Nuclear Engineering. The efforts
were sharred by the two important institutions mainly because some of
the people from the Organizing Committee moved to University, aiming a t
having closer contacts with students.
The school from this year was devoted to the study of nuclear structure
and dynamics of nuclear systems and their constitucnts. As shown in the
table of contents, the chosen subjects cover a large area of modern nuclear
physics. Various phases of nuclear matter a t low and intermediate energiers
were studied. Nuclear structure subjects were always a central issue of nu-
clear physics. In our school some hot subjects like critical points in nuclear
shape phase transitions, octupole deformed nuclei, approaches going beyond
the meanfield approximation, nuclear molecules, exotic nuclei and neutron
stars, synthesis of superheavy elements, relativistic covariant descriptions,
recieved the deserved attention. Various features of multifragmentation pro-
cesses were interpreted both in statistical and dynamical models. Also the
particle production processes in heavy ion collitions are investigated. Two
extensive lectures on dark matter and various scenarious for its detection
were delivered. A possible link to certain mechanisms for neutrinoless dou-
ble beta decay has been discussed. A QCD self-consistent description for
dilepton production has been presented. Recent results for the proton struc-
ture investigated by (e,e’) experiments at HERA was presented. The team
vi
of speakers was constituted from distinguished professors from different im-
portant corners of the world. They presented] with high competence] the
most recent results in their fields and sketched appealing perspectives.
I am happy to mention that the scientific climate was very good and
that the lectures stimulated an active participation of the audience.
I hope that the near future will positively evaluate the benefit provided
by the present school to participants. Having in mind the hot discussions
of participants during the lectures] the large volume of exchanged scien-
tific information] the established new collaborations, the common research
plans sketched for the near future, we may assert that the main scope of
the present school has been accomplished. The young physicists listened
outstanding professors speaking about their results as well as about the
open problems in their fields and due to these facts they returned to their
home institutes with an increased optimism.
In order to allow the young physicists, who were not able to attend the
school, to have access to the scientific information transfered there, I tried
my best to make the proceedings ready for publication, in a reasonable
short time. As a matter of fact this is the only reason we missed the lecture
of Dr. N.V. Zamfir on critical points of phase transitions.
Besides invited lectures, many short communications were given. These
will be collected in a special issue of Romanian Journal of Physics were
some extended review papers are also invited.
I hope that the present volume will be very useful to a large cathegory
of nuclear physicists. Also, I am convinced that the scientific level of the
lectures, the academic atmosphere and the beauty of the mountains sur-
rounding the place are three decisive attractors for participants to the next
edition.
A. A. Raduta
vii
Organising Committee
A. A. Raduta, Director
A. C. Gheorghe, Vice-Director
V. Baran, Scientific Secretary
I. I. Ursu, Scientific Secretary
Aurora Anitoaiei, Technical Secretary
Denise Cringanu, Technical Secretary
Alexandra Olteanu, Financial Expert
Adrian Socolov, Designer
List of Participants
Francisc Aaron, Univ. Bucharest, Fac. of Physics, Romania
M. Avrigeanu, Horia Hulubei National Institute of Physics and
Nuclear Engineering, Bucharest, Romania
V. Avrigeanu, Horia Hulubei National Institute of Physics and
Nuclear Engineering, Bucharest, Romania
V. Baran, Horia Hulubei National Institute of Physics and Nuclear
Engineering, Bucharest, Romania
Sergey Bastrukov, JINR-Dubna, Russia
P. G. Bizetti, INFN-Firenze, Italy
D. Bonatsos, Institute of Nuclear Physics, National Centre for
Scientific Research, Demokritos, Greece
Radu Budaca, Faculty of Physics, Bucharest Univ., Romania
T. Buervenich, Frankfurt/Main Univ., Germany
Petrica Buganu, Faculty of Physics, Bucharest Univ., Romania
Florin Buzatu, Horia Hulubei National Institute of Physics and
Nuclear Engineering, Bucharest, Romania
Florin Carstoiu, Horia Hulubei National Institute of Physics and
Nuclear Engineering, Bucharest, Romania
A. Covello, Univ. Napoli, Italy
I. Cotaescu, Univ. Bucharest, Fac. of Physics, Romania
...
v111
Doru Sabin Delion, Horia Hulubei National Institute of Physics and
Nuclear Engineering, Bucharest, Romania
C. Diaconu, IN2P3, Marseille, France
Nguyen Dinh Dang, Nishina Center for Accelerator-Based
Science,Riken, 2-1 Hirosawa, Wako City, Saitama, Japan
Massimo Di Toro, LSN, INFN, Catania, Italy
Albert Escuderos, Univ.of Madrid,
Spain;aescuder @physics.r utgers. edu
C. Fuchs, Inst. of Theor. Phys., Univ. of Tuebingen, Germany
Andreea Fugaru, Faculty of Physics, Bucharest Univ., Romania
Radu Gherghescu, Horia Hulubei National Institute of Physics and
Nuclear Engineering, Bucharest, Romania
Jose Maria Gomez, Autonoma Univ. of Madrid, Spain
Francesca Gulminelli, LPC- Caen, France
Dan Gurban, Horia Hulubei National Institute of Physics and Nuclear
Engineering, Bucharest, Romania
Victor E. Iacob, Texas A&M Univ., College Station, USA
Amilcar Ionescu, Horia Hulubei National Institute of Physics and
Nuclear Engineering, Bucharest, Romania
Ari Jokinen, Dept.of Phys., Univ. Jyvaskyla, Finland
Jenni Kotila, Univ. Jyvaskyla, Dept.of Physics, P. O.Box 35 (YFL),
Finland
M. Krivoruchenko, Dept.of Physics, Univ. Genova, I-I 6146, Italy;
Inst. for Theor.E xperimental Phys., 11 7259, Moscow, Russia
G. Lalazisis, University of Thessaloniki, Greece
Nicola Lo Iudice, Univ.Napoli, Dep.of Phys. Sci., Nat .Inst. of Nucl.
Phys., Mostra d’oltremare, Pad. 19, 80-12 5, Italy
Tatiana Mikhaylova, JINR, DLTP, Dubna. Moscow Reg., Russia
Calin Miron, Fac. of Phys., Univ. Bucharest, Romania
Serban Misicu, Horia Hulubei National Institute of Physics and
Nuclear Engineering, Bucharest, Romania
Andrei Neacsu, Horia Hulubei National Institute of Physics and
Nuclear Engineering, Bucharest, Romania
ix
Nine1 Nica, Texas A&M Univ., Cyclotron Inst.College Station, USA
77843-3366
Aura-Catalina Obreja, Horia Hulubei National Institute of Physics and
Nuclear Engineering, Bucharest, Romania
Dimitries Petrellis, Institute of Nuclear Physics, National Centre for
Scientific Research, Demokritos, Greece
A. Petrovici, Horia Hulubei National Institute of Physics and Nuclear
Engineering, Bucharest, Romania
Oliver Plohl, Univ.Tuebingen, Germany;
