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Laboratoire d'Annecy-le-Vieux de
Physique Théorique


LAPTh, an overview

LAPTh is a mixed research unit (UMR 5108) of the CNRS lapth-lapp(within the Institute of Physics, INP) and the Université de Savoie. It is  located in Annecy-le-Vieux, 5km from the centre of Annecy and about 40km from CERN and Geneva.  The activities of LAPTh are centred around three main areas of research:

  • phenomenology of particle physics,
  • astroparticles and cosmology,
  • mathematical physics in particular field and string theory and  aspects of symmetry. 



famelablogoThe CCSTI Cran Gevrier,  LAPP, and  LAPTh teamed up  for the organisation of one of the four regional finals of FameLab on 17 april 2014 in Annecy. FameLab is an international contest in scientific communication, which was created in 2005 at the Times Cheltenham Festival, and which involves each year more than 5000 young scientists and engineers from more than 20 countries. This year, the first French edition of this contest will take place, organised in collaboration with AMCSTI, CNES, CERN, INSERM, and Cheltenham Festival.

The candidates for FameLab France have to

  • be older than 21 but less than 40 years,
  • work or study in exact sciences, technology, engineering, or mathematics in France
  • sign up before 28 february at the address http://www.britishcouncil.fr/famelab

Read more: FameLab


Guilhem Bernard on French TV. The Cosmic bubble

guilhem2Guilhem Bernard a PhD student at LAPTh was invited, during the Fête de la Science (the yearly Science Festival), on the news programme of the French channel FR3 to talk about  his project (the cosmic bubble) and the importance of outreach especially towards young children. Video here.

The Cosmic Bubble: : Let yourself be drawn into a galactic journey to discover the source of cosmic rays. This unique sensory experience to discover the wonders of the galaxy

Read more: Guilhem Bernard on French TV. The Cosmic bubble


Festival of Science 2013

The 2013 Science Festival

logofds 2012

For this year's festival, a cycle of 4 presentations for the general public will be given by physicists from LAPTh and LAPP on saturday 12 and Sunday 13 October. These presentations will be held in the auditorium Marcel Vivargent (LAPP/LAPTh) in Annecy-le-Vieux.

Here is the programme (All talks in French) :

Saturday 12 October at 14h : "Voir l’invisible, vues scientifiques et vues d’artistes" par Loic Rolland (LAPP)

Saturday 12 October at 17h : "Un boson nommé Higgs" par Paul Sorba (LAPTh)

Sunday 13 October at 14h : "Défis technologiques : explorer l’espace et la matière" par Armand Fiasson (LAPP)

Sunday 13 October at 17h : "L’image astronomique : du télescope à l’utilisation scientifique" par Richard Taillet (LAPTh)


The 2013 Nobel Prize in Physics

bandeau nobel 2013The 2013 Nobel Prize in Physics was awarded to François Englert (Belgium) and Peter W. Higgs (U.K). higgs englertThe press release of the Nobel committee is very careful in its wording. First of all the prize is awarded to two theorists "for the theoretical discovery of a mechanism that contributes to our understanding of the origin of mass of subatomic particle". This Nobel refers to the BEH mechanism (for Brout, Englet and Higgs). In 1964 Brout and Englert wrote a paper putting forth the idea. Within a few weeks the same proposal was made by Higgs albeit in a slightly different language. The mechanism itself was a way to counter a theorem (Goldstone theorem, which in fact was put on firm ground by Goldstone, Salam and Weinberg). The theorem predicts the appearance of massless spin-0 bosons (Nambu-Goldstone bosons) whenever there is spontaneous symmetry breaking. In short this refers to the situation where the dynamics and the equations describing the physics have a symmetry that is not shared by the solution of the equation, in particular by the ground state of the theory.

Read more: The 2013 Nobel Prize in Physics


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