• Tuesday 9 June 2020 at 10.15 using Zoom:  Veronica Sanz (Sussex and Valencia/CSIC)
    Theoretical interpretation of non resonant searches
    With null results in resonance searches at the LHC, the physics potential focus is now shifting towards the interpretation of non-resonant phenomena. An example of such shift is the increased popularity of the EFT programme. We can embark on such programme owing to good integrated luminosity and an excellent understanding of the detectors, which will allow these searches to become more intense as the LHC continues. In this talk I will explain a framework to perform this interpretation in terms of a diverse set of scenarios, including 1.) generic heavy new physics described at low energies in terms of a derivative expansion, such as in the EFT approach, 2.) very light particles with derivative couplings, such as axions or other light pseudo-Goldstone bosons, and 3.) the effect of a quasi-continuum of resonances, which can come from a number of strongly-coupled theories, extra-dimensional models, clockwork set-ups and their deconstructed cousins.
  • Tuesday 25 August 2020 at 10.15 in A315: Kazuo Fujikawa (RIKEN)
    Abstract: TBA
  • Tuesday 22 September 2020 at 10.15 in A315: Maurizio Piai (Swansea)
    Higgs Compositeness and Beyond the Standard Model Physics
    Appealing solutions to the hierarchy problem of the Standard Model involve assuming that the Higgs particle might be composite, and originates from new strong dynamics. This general scenario has a number of concrete possible realisations, and their study requires non-perturbative theoretical methods.  I illustrate a selection of three such possibilities, via examples of calculations  that use gauge-gravity dualities, lattice gauge theories and effective field theories, respectively.  

    Hopefully the up to 50 min + 10 min discussion long seminar/colloquium will be understandable to a wide audience.
    Contacts: Keijo Kajantie (keijo kajantie at helsinki fi) [ HIP seminar],
    Sofie Koksbang (sofie koksbang at helsinki fi) [cosmo seminar]

    New Nordic series of seminars over the web, link: 
    For more information, and to subscribe to email announcements, contact Oscar Henriksson (oscar henriksson at helsinki fi)

    Other related seminars

    Friday 10-12 seminar series in A315:Astrophysics seminar.
    Mathematical Physics Seminar and Workshop series Wed 14-16 in Exactum C123.