Logo Lab

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. 


Habemus Logo

logo lapth webopt1

A new logo is born !

LAPTh has now a new logo! Putting 5 letters in a square was no easy job. Among a hundred of designs and a lot of discussions in the LAPTh patio, restaurant, sometimes heated but always jovial, this was the final choice. The logo comes now in a couple of versions. 



logo lapth webopt3 cut


New Planck results, another one bites the dust

optimized-polar planck

After four years of operation of the Planck satellite of the European Space Agency (ESA), the Planck Collaboration has build up an exquisitely precise map of the sky in both temperature and now of polarisation. These maps furnish a detailed picture of how the universe evolved. Among the numerous results provided by the Planck satellite over the last year, there is an assessment of the polarised dust emission at intermediate and high Galactic latitudes  (http://arxiv.org/abs/1409.5738). This is a crucial foreground in the searches for primordial B-mode polarisation patterns, possibly imprinted in the Cosmic Microwave Background by gravitational waves of  inflationary origin, also known as tensor modes. Thanks to this measurement, older estimates of this contribution have  been revisited and, in a joint effort by the BICEP2/Keck Array and Planck Data collaborations (http://arxiv.org/abs/1502.00612),  no statistically significant evidence for tensor modes has been found in a reanalysis of the BICEP 2 observations, which  in 2014 had been interpreted as a possible primordial B-mode detection  (http://arxiv.org/abs/1403.3985), an interpretation that made big waves in the media then... undeservedly. We will need to wait and be more careful about gravity waves.


Group Theory Lectures 2015

Following the success of the course that Paul Sorba gave 2 years ago, our new PhD students and post docs asked Paul to renew the experience. The Group Theory and its Applications course is to be delivered over about 10 sittings.  The course will cover 

1) Elements of group theory and their importance in particle physics

2) Lie groups and Lie algebras

3) Classification of semi-simple Lie algebras

4) Representations of simple Lie algebras

5) Applications: spectroscopy of elementary particles, gauge theory, grand unification models

6) Extensions: superalgebras (for supersymmetry); quantum groups (for integrable systems); exceptional algebras and infinite dimensional algebras (for string theory)

Read more: Group Theory Lectures 2015


Jobs : PhD positions Enigmass 2015



The "Excellence Laboratory" ENIGMASS is offering up to 3 three-year PhD positions (doctoral fellowships) starting autumn 2015 in Annecy and Grenoble.

The list of proposed PhD subjects is here. Applicants should have a Master-2 diploma (or equivalent) by the end of July 2015.

The application deadline is February 16th 2015 (23:59 CET).

 Applicants should fill the application form available here. The results will be available by the beginning of May 2015.


Anonio Pich Lectures : Naturalness and LHC Run 2

higgs pot

As part of the ENIGMASS lecture series, Antonio Pich (University of Valencia, Spain) delivered a series of lectures on 12/13 November (2014) entitled " Probing Naturalness and Electroweak Symmetry Breaking at LHC run-2.  Three lectures of 1h30 each were given, each lecture was followed by a debate and exchange with the audience. The target audience were staff physicists, post-docs and PhD students. For more details about the events see here.

Lecture 1 Lecture 2 Lecture 3


In Pour La Science, Supernovae and Neutrinos

pour la science neu serpico opt Pasquale SERPICO contributed to the September 2014 Edition of Scientific American (Pour La Science) that covered a few aspects of the fascinating neutrinos. His contribution explained how the signal from a supernova can be used to infer the pattern of masses of these elusive particles. 

ccneutrinos1 04 12

Neutrinos (and their antiparticles, antineutrinos) are copiously produced in numerous particle physics processes at different depths in the core of collapsing stars (Supernovae). They also come in three varieties (or flavours), as defined by the process by which they were created.

Read more: In Pour La Science, Supernovae and Neutrinos


Raqis 2014


Bringing together about 80 participants, the 6th edition of the international conference RAQIS (Recent Advances in Quantum Integrable Systems) was held from 1 to 5 September 2014 in Dijon (France).

Co-organised by LAPTh and the University of Burgundy, it has become a major event for specialists in quantum integrable systems. Last meeting of the ANR programme 'DIADEMS', the conference was to hear about forty presentations covering the latest developments in the field from mathematical aspects to applications in string theory, statistical physics and condensed matter physics.


More informations here.




LAPTh is a member of HiggsTools, an Initial Training Network (ITN) supported by the 7th Framework Programme of the European Commission.

HiggsTools consists of 10 teams from 37 European Universities and Research Institutes, one International Organisation (CERN), and 4 partners from the private sector.

LAPTh is the coordinator of the French participation. The programme covers the important physics of the Higgs and the concomitant topic of the nature of the electroweak symmetry breaking and what may lie beyond it. More info here.


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