La Thuile, Aosta Valley, Italy                                                                                                 March 21-28, 2004







The XXXIXth Rencontres de Moriond session devoted to ELECTROWEAK INTERACTIONS  AND UNIFIED THEORIES will be held in La Thuile from Sunday March 21st to Sunday March 28th 2004. La Thuile is a pleasant winter sport resort located in the Italian Alps, at 1450 m alt., about 120 km from Geneva.. The nearest international airport is Geneva (Switzerland). If you arrive in Geneva International Airport, do not forget that you* may need a transit visa, coming through Switzerland to Italy .


              Postal address of the meeting:          

              Rencontres de Moriond             

              Planibel Hotel - La Thuile     

              Aosta Valley    Phone number: 39 (0)1 65  88 45 41    

              11016 La Thuile (Aosta), Italy              Fax number: 39 (0)1 65 88 45 35  

              Please begin your fax with:  Attention to Rencontres de Moriond.


* this is certainly the case for Russian an Korean particpants.




The purpose of the Rencontres de Moriond is to discuss recent findings and new ideas in fundamental interactions in a pleasant, relaxed and intimate atmosphere. The meeting is intended to promote fruitful collaboration between experimentalists and theorists and between various institutions, by bringing together a limited number of particle physicists in beautiful and inspiring surroundings.




1. Program

The topics which will be discussed include:


1. CP violation in B and K systems

2. Neutrino Physics

3. Astroparticles, Dark matter Searches

4. New particle searches at colliders (present and LHC)

5. Theories beyond the Standard Model

6. Precision tests of the Standard Model


2. Program Committee

A. Abada (LPT, Orsay), A. Blondel (Genève), S. Davidson (Durham), P. Fayet (ENS, Paris), J.-M. Frère (Bruxelles), H. Frisch (Chicago), P. Hernandez (Valencia), M. Knecht (CPT, Marseille), L. Krauss (Yale, USA), J. P. Lees (LAPP, Annecy), S. Loucatos (DAPNIA-SPP, CEA, Saclay), F. Montanet (LPSC, Grenoble), L. Okun (ITEP, Moscou), A. Pich (Valencia), J. Trân Thanh Vân (LPT, Orsay), G. Unal (LAL, Orsay), D. Wood (Northeastern Univ., Boston), F. Zwirner (University of Rome La Sapienza, Italy).


3. Contributions

The detailed program of the meeting will be established according to the latest experimental and theoretical results at the time of the meeting. Request for contributions should be sent (using the Contribution Form) by email to the appropriate address below, with a copy to the organizer of your choice (by January 15 2004, at the latest). Due to the limited time available, only a restricted number of talks can be accepted.


According to the tradition of the Rencontres de Moriond, a large amount of time will be reserved for both organized and spontaneous discussions. Hence all participants are expected to play an active role during the entire meeting. Please remember that we make a special effort to bring together theorists and experimenters: theoretical talks should be prepared with experimenters in the audience in mind, and experimental talks should likewise be aimed at theorists.

Speakers are kindly requested to write their transparencies in BIG letters and preferably in landscape mode or only using the upper 2/3 of the portrait sheet.


Further information can be obtained :

For experimental aspects :

G. Unal: LAL, Université Paris-Sud, Bât. 200, 91405 Orsay cedex, France.

Phone: 33-(0)1 64 46 84 42 - Fax : 33-(0)1 69 07 15 26. E-mail :

For theoretical aspects :

J.-M. Frère : Theoretical Physics, ULB, CP 225, Bd du Triomphe, B-1050 Brussels, Belgium.

Phone : 32-2 650 55 71 -  Fax : 32-2 650 51 13 - E-mail :


Proceedings of the conference will be published. Instructions will be given during the Rencontres. Deadline for the contributions will be May 15th 2004.




1. Conference Dates

The meeting will begin on Sunday March 21st 2003 at 18 h 00  and will end on Sunday March 28th, at 11 h 30.


2. Conference facilities :

The following equipment will be available : a slide projector for 5cm x 5cm slides an overhead projector for transparencies and a projector for computer presentations. Speakers can bring their presentations on their laptops (while the compatibility of such devices has improved recently, we ask you to bring a back-up copy for overhead projector).


3. Transparencies

Speakers are requested to bring a good photocopy of their talks. This copy will be left for display.  In order to make these transparencies available on the web, speakers who have their talks in computer file format (Postscript, PDF, Powerpoint, Word…) are invited to send an email with their file as an attachement or with the address to an ftp or www server where the file can be fetched. The email address for this purpose is :


4. Conference Fee

The conference fee for participants will be 330 Euros. It will cover the cost of the copy of the proceedings and the cost of all social events.


Payment can be made:

- before the conference by bank transfer (add 22 Euros) to Moriond bank account: Banque de Savoie, Place de l'Hotel de Ville, 73700 Bourg St Maurice, France.

ADREMOR - Bank Code 10 548, Branch 00013, Account 00047 135 153, key 67,

Swift Code : BSAVFR2C

In this case, the transfer should clearly indicate your name to identify the payment. The corresponding voucher should imperatively be handed at the conference site.

- on the conference site by traveller's checks or personnal checks in Euros or US dollars to the order of "Rencontres de Moriond", handed to the secretariat upon your arrival or within the first 2 days of the workshop.

Please avoid cash payment if possible.

Credit cards are not accepted for Conference Fees payments but are accepted for the hotel bill (See below).


5. Accommodations

Housing will be in Hotel Planibel, La Thuile. Meals will be served in this hotel for all participants.


The hotel bill shall be paid directly to the hotel. Credit card payment (for the hotel accommodations only) can be accepted.


The cost (full board) will amount to 518 Euros (double occupancy).

It will be difficult to obtain single rooms. Only a few will be available at an additional cost of 140 Euros.

Single rooms should be reserved before December 15th, 2003.


For accompanying members, the costs are as follows:

- 518 Euros  per adult

- 388 Euros per child (6 -10 years old)

- 259 Euros per child (4 - 6 years old

It will not be possible to find accommodation for your family if you have not requested it by December 30th, 2003.


Important Notice: Hotel reservations are made for the whole session: i.e. from the evening of Sunday, March 21st to the morning of Sunday, March 28th (including lunch before departure of the conference bus to Geneva).

Please note that the total cost of the meeting will not be reduced even in case of partial attendance. 

Cancellation of hotel reservations should be made before February 15th  2004. After this date, the hotel will charge us for the entire cost and we will have to ask the participants, who cancel their attendance later, to pay for the total accommodation cost as listed above.





More detailed information will be communicated next November.


1. From Paris to Geneva by TGV. Please note that reservations are compulsory for TGV trains.


2. From Geneva Airport to La Thuile


a). Conference bus

With the Conference buses: departure from Geneva International Airport on Sunday, March 21st:  the bus will leave at 13 h 30,


Return Conference buses are scheduled to leave La Thuile on Sunday, March 28th at 12 h 30 sharp (after lunch) and will reach Geneva airport and then CERN (if requested) around 17 h 00, depending on the traffic.


b). By car

La Thuile can be easily reached by car, by the A40 highway to St Gervais, then by the E25 to Chamonix, Courmayeur and Pré Saint Didier and then turn right direction to La Thuile via Strata Statale Valle d'Aosta (10 km).

If chains are necessary, the sooner you put them on, the better.



Please note that your reply to the program committee member who sent you the invitation is not considered as a registration. Registration for your attendance to the workshop and hotel reservation will only be made on receipt of the attached registration form.



Please return your registration form as soon as possible!

If it is not received by December 30, 2003,

we may not be able to get hotel reservations for you.