Description
Tuesday March 18th: Astrophysical neutrinos - Dark Matter
Dr
Matteo Duranti
(INFN Sez. Perugia)
18/03/2014 08:30
Experiment
Ordinary
The AMS-02 detector is operating on the International Space Station
(ISS) since May 2011. More than 45 billion events have been collected by
the instrument in the first 1000 days of data taking. This unprecedented
amount of data is being used to perform accurate measurements of the
different Cosmic Rays components. In this contribution, the published
results and the highlights of the...
Dr
Claudio Kopper
(University of Wisconsin--Madison, WIPAC)
18/03/2014 08:50
Ordinary
The spectrum of cosmic rays includes the most energetic particles ever observed. The mechanism of their acceleration and their sources are, however, still mostly unknown. Observing astrophysical neutrinos can help solve this problem. Because neutrinos are produced in hadronic interactions and are neither absorbed nor deflected, they will point directly back to their source. Neutrinos may also...
Günter Sigl
(University of Hamburg)
18/03/2014 09:10
Ordinary
Dr
Irene Tamborra
(GRAPPA Institute, University of Amsterdam)
18/03/2014 09:30
Theory
Ordinary
Despite their extremely weak interactions, neutrinos are crucial to the dynamics of the most spectacular events in our galaxy: the deaths of massive stars in violent supernova explosions. In the delayed explosion scenario of core-collapse supernovae, neutrinos play a fundamental role reviving the explosion and carry imprints of the supernova hydrodynamics. Neutrino signal variations from first...
Dr
Cláudio Silva
(LIP Coimbra)
18/03/2014 10:10
Theory
Ordinary
The discovery of the nature of the dark matter is presently one of the greatest challenges in fundamental physics. One favored class of dark matter candidates, the Weakly Interacting Massive Particles (WIMPs), are expected to interact with ordinary matter. LUX is one of the experiments that aim to detect nuclear recoils of energies of several keV resulting from the interaction of galatic WIMPs...
Lorenzo Calibbi
(ULB, Brussels)
18/03/2014 10:30
Theory
Ordinary
We investigate the current status of the light neutralino dark matter scenario within the MSSM taking into account latest results from the LHC. A discussion of the relevant constraints, in particular from the dark matter relic abundance, leads us to a manageable simplified model defined by a subset of MSSM parameters. Within this simplified model we reinterpret a recent search for electroweak...
M.
Adam Anderson
(Massachusetts Institute of Technology)
18/03/2014 10:50
Experiment
Ordinary
The SuperCDMS experiment has operated a 9kg array of cryogenic detectors to search for weakly interacting massive particles (WIMPs) in the Soudan Underground Lab since early 2012. We have recently analyzed 577 kg-d of low-energy data on a subset of detectors with 1.6 keVnr energy threshold. The athermal phonon measurement of the detectors provides position sensitivity, and therefore...
Dr
Marco Drewes
(TU Munich)
18/03/2014 11:10
Theory
Ordinary
I discuss the possibility that right handed neutrinos with experimentally accessible masses alone can simultaneously explain neutrino oscillations, the baryon asymmetry of the universe and Dark Matter. Since these are the only confirmed pieces of evidence for particle physics beyond the Standard Model, this testable scenario can in principle be valid as a complete effective field theory of...
Dr
Theodoros Vafeiadis
(CERN)
18/03/2014 17:30
Ordinary
The status of the solar axion search with the CERN Axion Solar Telescope (CAST) will be discussed. The latest results from the second part of CAST phase II where the magnet bores were filled with 3He gas at variable pressure scanning axion masses up to 1.2 eV will be presented. In 2013 CAST has improved its sensitivity to solar axions with rest mass below 0.02 eV/c2 by upgrading the Micromegas...
Prof.
Anthony Noble
(Queen's University Kingston)
18/03/2014 17:50
Experiment
Ordinary
This talk will present the current status of the PICO dark matter experimental program. PICO arose from the recent merger of the PICASSO and COUPP collaborations. They are currently operating two superheated liquid bubble chambers, PICO-2L and COUPP-60 at SNOLAB. The most recent results on the performance of these two detectors will be presented.
Dr
Pedro Schwaller
(CERN)
18/03/2014 18:30
Theory
Ordinary
In recent years tremendous progress was made in a rigorous treatment of leptogenesis, using methods from non equilibrium and thermal quantum field theory. I will review some of the recent developments, like new results for scattering rates and effects from partially equilibrated spectator processes, and explain why they can have a substantial impact on the final baryon asymmetry. Finally I...
Dr
Marek Kos
(Pacific Northwest National Laboratory)
18/03/2014 18:50
Ordinary
The CoGeNT dark matter detector has been taking data at the Soudan mine since December 2009. The data have been analyzed for a possible WIMP signal using multi-dimensional PDFs in energy, time, and pulse rise-time. The bulk event (fast rise-time pulses) and surface (slow rise-time) event fractions are determined through this analysis. We have also done extensive simulations of backgrounds...
