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Extended Particle Theory Seminar

Europe/Stockholm
Beurlingrummet (Ångstrom)

Beurlingrummet

Ångstrom

    • 14:00 14:40
      Understanding fermion masses in a gauged Froggatt-Nielsen model 40m

      Understanding the hierarchies for fermion masses and their mixings is one of the outstanding problems in particle physics. In the standard model these are simply free parameters which are fitted to experiment. Froggatt and Nielson suggested that these patterns can be understood by introducing a new flavon symmetry. In this talk I will present the consequences of making this symmetry local and briefly discuss how the arising constraints from gauge anomalies can be solved using methods from algebraic geometry and properties of elliptic curves.

      Speaker: Johan Rathsman (Lund University)
    • 14:40 15:00
      Coffee Break 20m
    • 15:00 15:40
      Rare B decays and search for new physics 40m

      The role of flavour physics in the quest for new physics, the implications of the current measurements and future perspectives will be discussed, with an emphasis on the implication of the recent anomalies observed in the LHCb measurements.

      Speaker: Mahmoudi Nazila (Lyon University)
    • 16:00 16:20
      Minimal anomaly free U(1) extensions: constraints, prospects & outlooks 20m

      In my talk, I shall consider minimal anomaly free U(1) extensions of the Standard Model with three generations of right-handed neutrinos and a complex scalar. Then, I shall show that the parameter space of a class of such models is heavily constrained by the electroweak precision test and the LHC data. I shall also discuss the Green-Schwarz anomaly cancellation mechanism in this context and its future prospects. Finally, I shall discuss possible outlooks and future directions in terms of dark matter and collider signatures

      Speaker: Tanumoy Mandal (U)
    • 16:30 16:50
      The mostly SM-like Higgs, mostly … 20m

      The discovered Higgs seems to be consistent with the SM; yet we expect a modified Higgs sector from BSM physics. In this talk I show how to include light scalars in the 2HDM while naturally obtaining a SM-like Higgs boson.

      Speaker: Andreas Uppsala University (Ekstedt)
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