Descripción
Chair: M A Perez Garcia
Andrey Alexsandrov
(Napoli University)
24/5/16 15:00
Astro/Cosmo/Neutrinos
Contributed talk
Nowadays there is compelling evidence for the existence of dark matter in the Universe. A general consensus has been expressed on the need for a directional sensitive detector to confirm, with a complementary approach, the candidates found in “conventional” searches and to finally extend their sensitivity beyond the limit of neutrino-induced background. We propose here the use of a detector...
Ivan Felis
(Univ Politècnica València)
24/5/16 15:20
Astro/Cosmo/Neutrinos
Contributed talk
In this talk, the technique of using bubble nucleation in superheated liquid detectors for dark matter searches is addressed. This technique can be very competitive, especially for the case of spin dependent interaction. The activities and results of PICO bubble chambers will be described. For instance, the best spin dependent WIMPproton cross-section limits have been obtained with the...
Martin Vollmann
(TU Munich)
24/5/16 15:40
Astro/Cosmo/Neutrinos
Contributed talk
One of the key predictions of the "WIMP" paradigm for Dark Matter (DM) is that DM particles can annihilate into charged particles. These annihilations will proceed in e.g. Galactic subhalos such as dwarf Galaxies or, as recently pointed out, high velocity clouds such as the "Smith" cloud. In this talk I will argue that among the several messengers of the DM annihilations occurring in the Smith...
Carlos Yaguna
(Max-Planck Institute for Nuclear Physics)
24/5/16 16:00
Astro/Cosmo/Neutrinos
Contributed talk
Monochromatic neutrinos from dark matter annihilations (χχ→νν¯) are always produced in association with a model-independent gamma-ray spectrum generated by electroweak bremsstrahlung. Consequently, these neutrino lines can be searched for not only with neutrino detectors but also indirectly with gamma-ray telescopes. Here, we derive limits on the dark matter annihilation cross section into...
Miguel Escudero
(IFIC, CSIC-Univ Valencia)
24/5/16 16:20
Astro/Cosmo/Neutrinos
Contributed talk
We investigate the possibility that the dark matter is a chiral fermion charged under a global $U(1)_{B-L}$ symmetry spontaneously broken, which only interacts with sterile neutrinos via a scalar field mediator, singlet under the Standard Model gauge group.
We analyze in detail the phenomenological prospects for probing such scenario, namely
constraints from the observed dark matter relic...
