EURONS Activity N08
TNET
Theory Network for Nuclear Structure and Reactions

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Link to:
nucleartheory.net

 

N08-TNET, website: www.nucleartheory.net/tnet

 

Ian Thompson,

Jeff Tostevin

Email: tnet@nucleartheory.net

Department of Physics
University of Surrey
Guildford GU2 7XH

United Kingdom

 

Deliverable D-N08-2.1: First report on task T-N08-2.1
(pdf version)

 

First TNET Workshop

 

 

The first TNET workshop “Theory Network for Nuclear Structure and Reactions” was held at the University of Surrey, Guildford (United Kingdom) during part of Monday 10th, as well as Tuesday and Wednesday the 11-12 of April 2006.

 

The organizing committee was composed of  Ian Thompson (Surrey, coordinator), Jan Vaagen (Bergen) and Antonio Fonseca (Lisbon).

 

The main goal of the workshop was to bring together the nuclear theorists in the TNET from around Europe so that they could be acquainted with recent developments in nuclear theory, be informed about new experimental developments, and discuss the consequences of the future needs in both theoretical and experimental work.

 

A total of  35 nuclear theorists, experimentalists, observers and students attended the Workshop, from 11 EC and Associated States countries. The meeting followed immediately the Town Meeting for NT* that was held on the Monday, and most participants attended both meetings. Some of the TNET review talks were delivered during the Town Meeting in order to broaden the audience and provide more general feedback for our own group.

 

The detailed programmes for the workshop and the overlapping parts of the Town Meeting are given in Annex 1. The workshop talks (pdf files) can be browsed from the TNET webpage http://www.nucleartheory.net/tnet/Workshop06-presentations.htm. A complete list of participants and a summary of the workshop are also given in Annex 1.


First TNET Workshop / ANNEX 1

 

1. List of Participants

 

Giuseppina Orlandini, U. Trento; Winfried Leidemann, U. Trento; Pierre Capel, Brussels/ Triumf; Pierre Descouvemont, Brussels; Helmut Leeb, TU Wien; Michele Viviani, Pisa; Reiner Krücken, München; Jan Vaagen, Bergen; Oyvind Jensen, Bergen; J. Gomez Camacho, Sevilla; Curro Pérez Bernal, Huelva; Antonio Moro, Sevilla; Niels Walet, Manchester; Massimo Alvioli, Perugia; Sarmistha Banik, Manchester; Marek Ploszajczak, GANIL; David Dean, Oslo/ORNL; Nguyen Van Giai, Orsay; Antonio Fonseca, Lisboa; M. Rodriguez Gallardo, Lisboa; Ian Thompson, Jeff Tostevin, Jim Al-Khalili, Christine Carter, Amy Bartlett, Ron Johnson, Wilton Catford, Bill Gelletly, Surrey; Ramon Wyss, Stockholm; Jose Udias, Madrid; Tamas Vertse, Debrecen; Marielle Chartier, Liverpool; Roy Lemmon, Daresbury;  Philippe Chomaz, GANIL; and Robert Roth, Darmstadt.

 

2. Workshop Programme (including part of preceding Town Meeting)

 

Monday

 

 

 

10.20am

Ian Thompson

Surrey

Challenges in Reaction theory

11.30am

David Dean

Oslo/ORNL

Challenges on low-energy nuclear theory

12.15pm

Helmut Leeb

Wien

Application relevant reaction calculations needs and requirements

2.00pm

Philippe Chomaz

GANIL

The Physics programme at SPIRAL2

Tuesday

 

9.00am

Ian Thompson

Surrey

Welcome & Introduction

9.15am

Marielle Chartier

Liverpool

Exotic Nuclei studied in light-ion induced reactions at the future NESR storage ring

9.45am

Robert Roth

Darmstadt

Nuclear Structure and Reactions with Correlated Realistic NN-Potentials

11.00am

Michele Viviani

Pisa

Few-nucleon reactions and the nuclear interaction

11.30am

Reiner Krücken

München

AIC and other NUSTAR activities

12.00noon

Jan Vaagen

Bergen

Need for Phenomenology

2.00pm

Francisco Pérez Bernal

Huelva

Continuum Discretization and Coulomb Breakup. Application of the THO Formalism

2.30pm

Antonio Moro

Sevilla

Interplay between breakup and transfer to the continuum

3.00pm

Massimo Alvioli

Perugia

A realistic many-body approach to high-energy scattering processes off complex nuclei

4.00pm

Elias Khan

Orsay

Two neutrons transfer close to the drip-line

4.30pm

Joaquin Gomez Camacho

Sevilla

Scattering of exotic nuclei around the coulomb barrier: Experiments and theory

5.00pm

Discussion

 

 

Wednesday

 

 

 

9.15am

Roy Lemmon

Daresbury

Reactions with relativistic radioactive beams

9.45am

Pierre Capel

Brussels/ Triumf

Breakup of halo nuclei within a Dynamical Eikonal Model

11.00pm

Antonio Fonseca

Lisboa

p-d elastic scattering and breakup

11.30am

David Dean

ORNL

Coupled-cluster theory approaches to nuclei

12.00noon

Manuela Rodriguez Gallardo

Lisboa

Structure and reactions of 6He

2.00pm

Giuseppina Orlandini

U. Trento

EM probes for the study of light nuclei

2.30pm

Christine Carter

Surrey

Knockout reactions

3.00pm

Ramon Wyss

Stockholm

Critical remarks on the spin orbit interaction in mean field models

3.30pm

Niels Walet

Manchester

Hard-core truncated CCM; Correlations and high energy scattering

 

3. Summary of the Workshop, by the Coordinator

 

What this workshop showed is that there is a considerable range of nuclear theory work being performed throughout the Europe, in particular in the countries participating in this Workshop. I show below the ‘call for contributions’, and the experimental contributions explained these new requirements for theory at a broad level, but still most of the theoretical contributions showed less a concerted effort than the particular work the individual groups have been developing. 

 

There are some future possibilities revealed at the Workshop. The `Few Body’ theoretical community has been focusing up to now on few nucleon problems, but there are good prospects for applying their methods to heavy nuclei, using either in-medium interactions or cluster approximations. The disparity between the languages of the mean-field structure researchers and the reaction theorists was also demonstrated, and this indicates a further need for workshops such as this one to bring together the different research groups so that their efforts may be connected and more universal theories developed. More work is clearly needed in order to establish an `integrated infrastructure’ in the field of theoretical nuclear physics.

 

 

4. Initial ‘Call for Contributions’

 

The scientific programme of the TNET part of the meeting (Tuesday am to Wed pm) will be directed toward the theory that will be useful and new European facilities such as FAIR at GSI and SPIRAL2 at GANIL. The experiments will often be at 100-1000 MeV/u.  To this end, the following topics need to be addressed:

  • Short-range correlations in nuclei
  • Shell effects far from stability
  • Knockout & stripping reactions
  • Off-shell and/or finite-range effects in knockout reactions
  • Improving impulse approximations
  • Breakup reactions
  • Charge-exchange reactions
  • Meson (etc) production & exchange currents
  • Polarisation  - in any of the above reactions
  • Comparing exclusive & inclusive reactions at intermediate energies

 

Although some of the above topics are not the ‘expertise’ at the universities, we would still be interested very much in hearing thoughts on these questions. This is not a general nuclear physics conference at which there is talk about what each group has done in the recent years, but one that looks forward to what can/will be needed and done in the future.

 

 


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