Partikeldagarna 2017 (Stockholm)

Session

Monday afternoon session 1

6 Nov 2017, 13:45

DeGeersalen (Geovetenskapens hus)

316. Neutrinos from the Fermi Bubbles and the Galactic Center?

Elisabeth Unger (Uppsala Universiy)

06/11/2017, 13:45

The Fermi Bubbles are extended regions of hard gamma-ray emission which were discovered with Fermi-LAT data to exist above and below the Galactic Center. In order to explain the origin of the gamma-rays, different theories are proposed. In particular, within hadronic models, highly-accelerated cosmic rays interact with interstellar matter and create the observed gamma-rays and in addition...

306. Neutrinos from cosmic ray interactions in the Sun

Carl Niblaeus (Stockholm University & the Oskar Klein Centre)

06/11/2017, 14:00

Solar atmospheric neutrinos are produced in the high energy cascades that follow cosmic ray interactions with the outer parts of the Sun. We perform an updated calculation of the solar atmospheric neutrino flux and discuss the impact on searches for neutrinos from annihilations of weakly interacting massive particles (WIMPs). Our code is event-based and publicly available, and thus...

307. Thermalization time scales for WIMP capture by the Sun and the Role of Self-Interaction

Mr Axel Widmark (Stockholm University)

06/11/2017, 14:15

In the process of dark matter capture by the Sun, Weakly Interacting Massive Particles (WIMPs) from the galactic halo can scatter against atomic nuclei in the solar interior, settle to thermal equilibrium with the solar core and annihilate to produce an observable flux of neutrinos. When studying this process, the time it takes for a gravitationally bound WIMP to reach thermal...

305. A Search for Magnetic Monopoles using the IceCube Neutrino Observatory

Alexander Burgman (Uppsala University)

06/11/2017, 14:30

Magnetic monopoles are allowed in most extensions of the standard model. They are allowed in a wide range of masses, of which a large part lies outside of the reach of modern colliders. Therefore, in order to investigate the high mass range of magnetic monopoles we must search for monopoles produced in higher energy environments, such as the early Universe. According to Dirac’s...

310. The IceCube Upgrade

Chad Finley (Stockholm University)

06/11/2017, 14:45

I will review near-term plans for the IceCube Upgrade, longer-term plans for neutrino astronomy in Antarctica, and the role of Swedish researchers in these efforts.

297. ARIANNA Progress Report

Prof. Allan Hallgren (Department of Physics and Astronomy, Uppsala University)

06/11/2017, 15:00

Detection of cosmological neutrinos with energies in the energy range 10 PeV - 10 Eev requires efficient detection of signals created in large volumes of matter. A cost effectid method is readout of fast radiopulses from the Askaryan effect caused by neutrno interactions in ice. The ARIANNA project proposes to instrument 1300 km^2 of the Ross Ice shelf with readout stations. I will report...