Login

Partikeldagarna 2019

2–3 Oct 2019
Linköping University
Europe/Stockholm timezone
See you in October at Partikeldagarna in Linköping!

Session

Thu morning session 1

3 Oct 2019, 09:00
Planck, Fysikhuset (Linköping University)

Planck, Fysikhuset

Linköping University

Conveners

Thu morning session 1: Student talks

  • Riccardo Catena (Chalmers University of Technology)

Presentation materials

There are no materials yet.

  1. 35. Blazars as astroparticle physics laboratories: the case of KUV00311-1938 (11+3)
    Tomas Bylund
    03/10/2019, 09:00

    Blazars are very bright gamma ray sources in the sky that are visible out to very large redshifts. Powered by material falling into a supermassive black hole, blazars have jets that can emit gamma rays up to TeV energies. As these TeV photons propagate through space they are expected to encounter ambient magnetic fields and extragalactic background light (EBL). The presence of magnetic fields...

    Go to contribution page
  2. 32. Observing the sky continuously at extreme photon energies with ALTO/COMET (11+3)
    Mohanraj Senniappan (Linnaeus University)
    03/10/2019, 09:14

    ALTO is a future very-high-energy (VHE) gamma-ray observatory, which is currently in the prototyping phase. The proposed design of the array consists of more than a thousand Water Cherenkov Detectors (WCDs) each coupled with a liquid scintillator. The observatory will be installed at an altitude of 4 to 5 km above the sea level in the Southern Hemisphere. WCDs sample the secondary particles in...

    Go to contribution page
  3. 21. Anomaly-free model building: algebraic geometry and the Froggatt-Nielsen mechanism (11+3)
    Felix Tellander (Lund University)
    03/10/2019, 09:28

    We present methods to find anomaly-free gauged U(1) Froggatt-Nielsen type models using results from real algebraic geometry. These methods should be of general interest for model building beyond the Standard Model when rational charges are required. We consider models with a gauged U(1) flavour symmetry with one flavon and provide several model examples based on different physical assumptions....

    Go to contribution page
  4. 26. Finite temperature effects on particle decays (11+3)
    Mr Torbjörn Lundberg (Lund University)
    03/10/2019, 09:42

    At high densities and temperatures the standard quantum field theoretical approach to particle physics should be modified. Temperature enters explicitly in observables, for instance in decay rates, and under certain conditions expected results deviate significantly from the case of zero-temperature. I have put together a collection of thermal decay rates covering scalars, pseudo scalars and...

    Go to contribution page
  5. 12. The helicity-flow method (11+3)
    Andrew Lifson (Lund University)
    03/10/2019, 09:56

    It is well-known that the spinor-helicity method can significantly simplify the calculations of both Feynman diagrams and scattering amplitudes. In this work, we attempt to further simplify the Feynman-diagram calculation by converting the spinor-helicity method into a flow method, analogous to allowing a one-line journey from Feynman diagram to inner products. The cases of massless QED and...

    Go to contribution page
Building timetable...