The goal of this workshop is to discuss the implementation of ultra-high gradient acceleration techniques using plasmas for the development of high energy particle accelerators.

Significant breakthroughs have been achieved recently, and it is timely to consider the steps that should be performed in order to produce, using plasmas, accelerated electron beams that will meet the requirements of future high energy colliders. The participation of physicists from the plasma, laser and accelerator communities is highly desirable.

A first session will consist of review talks as a general introduction of the topics of the workshop. The other sessions will consist mainly in discussions and working sessions, where informal and short presentations are expected. A WIFI environment will be available during the sessions, and participants are encouraged to bring with them their laptops in order to be able to perform calculations or estimations on issues raised during the sessions.

The proposed topics are related to the different acceleration techniques using plasma likely to produce a controllable electron beam of good quality , i.e. with adequate energy and luminosity for high energy colliders.

Part of this workshop will be dedicated to a discussion of the steps to be performed in order to progress in this field, in terms of diagnostics, modeling and experimental tools.

This workshop is the first organized jointly by the European Linear Accelerator Network (ELAN), the International Committee for Ultra-Intense Lasers (ICUIL).

Online-contribution of abstracts of scientific contributions is encouraged, and will be possible from april 26, 2005 on.

Contributions should be associated with session of the workshop, abstracts will be forwarded to the session convenenors.

Multiple contributions are possible. Contributors will be able to modify their contribution after contribution. Please register prior to submitting an abstract.

Presentations should be made in electronic format and shall be put online on the CDS (CERN Document Server) which we use also for the agenda.

Accepted file formats are PDF, PowerPoint, OpenOffice, and PostScript. Please ensure that all graphics, animations etc are incorporated and not simply linked from your presentation.

In order to avoid inefficiencies due to connecting personal laptops to the beamer all speakers are required to provide their presentation file on CD-ROM, DVD-ROM or USB memory stick. Alternatively, you can also send your presentation via e-mail to the session conveners or to the local organizing committee who will put the presentation file on CDS

Conference participants will have access to the internet via an unprotected wireless network in the Hermite lecture hall at Institut Henri Poincaré (no WEP keys or passwords required). Please ensure that you have all necesseray information on hand if you want to connect to your home institute.

Only a very limited number of AC power outlets (220V,50Hz) will be available in the lecture hall. If available, you are encouraged to bring spare batteries. Also, you might wish to bring adequate theft protection for your laptops. (Anti-theft cables can be attached easily to the fixtures in the Hermite lecture hall.)

We strongly encourage the participants of the HEEAUP workshop to submit contributions for the proceedings of the workshop. This collection of articles will also serve as a basis for discussions on TeV plasma-based accelerators at future workshops on advanced accelerator concepts. Full conference papers are expected for the review talks of session 1, and shorter articles for presentations in the other sessions. Conveners are requested to provide a written summary of their session.

In order to ensure rapid distribution, the proceedings will be compiled on a CD-ROM and will be sent to all participants. In addition, the papers will be made available on the workshop website (as annex on the CDS agenda) as soon as they are submitted.

Articles should be prepared either in Word (.doc) or LaTeX format using the supplied documents templates (see below). The authors shall supply the source file (either Word or latex) as well as a pdf file produced from these source files.

Microsoft Word Template	template_A4.dot
LaTex2e template file	template-LATEX.tex
style files (required)	aipxfm.sty aip-6s.clo aipproc.cls
bibliography style you should use if you are using BibTeX and the natbib package	aipproc.bst
bibliography style you should use if you are using BibTeX without the natbib package	aipprocl.bst
All files in a gzipped tar (tar ball)	HEEAUPlatex.tgz

The deadline for submission is Friday, September 16th, 2005.
Please send submission to: heeaup-proc@poly.in2p3.fr
For further information: heeaup-proc@poly.in2p3.fr

• François Amiranoff, Laboratoire pour l'Utilisation des Lasers Intenses, France
• Brigitte Cros, Laboratoire de Physique des Gaz et des Plasmas, France
• Terrence Garvey, Laboratoire de l'Accélérateur Linéaire, france
• Danilo Giulietti, Università di Pisa, Italy
• Dino Jaroszynski, Strathclyde Electron and Terahertz to Optical Pulse Source, UK
• Chan Joshi, University of California, Los Angeles, USA
• Wim Leemans, Center for Beam Physics, Lawrence Berkeley National Laboratory, USA
• Thomas Katsouleas, University of Southern California, USA
• Karl Krushelnick, Imperial College London, UK
• Victor Malka, Laboratoire d'Optique Appliquée, France
• Gérard Mourou, Laboratoire d'Optique Appliquée, France (Chair)
• Patric Muggli, University of California, Los Angeles, USA
• Oliver Napoly, Commissariat à l'Energie Atomique DAPNIA Service des Accélérateurs de Cryogénie et de Magnétismes, France
• Kazuhisa Nakajima, High Energy Accelerator Research Organization, Japan
• Alexander Pukhov, Heinrich-Heine-Universitaet Duesseldorf, Germany
• Toshi Tajima, Applied Photon Research Center, Japan Atomic Energy Research Institute, Japan
• Marnix van der Wiel, Eindhoven University of Technology, The Netherlands
• Henri Videau, Laboratoire Leprince Ringuet, France (Chair)

• Brigitte Cros, Laboratoire de Physique des Gaz et des Plasmas, France (Chair)
• Jérôme Faure, Laboratoire d'Optique Appliquée, France
• Victor Malka, Laboratoire d'Optique Appliquée, France
• Gérard Mourou, Laboratoire d'Optique Appliquée, France
• Arnd Specka, Laboratoire Leprince Ringuet, France
• Henri Videau, Laboratoire Leprince Ringuet, France
• Grégory Vieux, Laboratoire de Physique des Gaz et des Plasmas, France