Speaker
Description
Weakly Interacting Massive Particles (WIMPs) are the most suitable particle dark matter candidates. These can be gravitationally captured into massive celestial objects, such as the Sun, where they can accumulate and then self-annihilate into Standard Model particles, also yielding neutrinos. Neutrino telescopes, large arrays of photo-sensors, can search for this indirect signal of the presence of dark matter by searching for neutrinos from the center of the Sun. In this work the data taken from 2007 to 2022 by ANTARES, a neutrino telescope located in the Mediterranean Sea, have been used to perform an indirect search for dark matter towards the direction of the Sun. The properties of the incoming neutrino events are reconstructed using the standard algorithms developed in the Collaboration but also with a new Machine Learning tool, aimed to improve the reconstruction accuracy for neutrino energies below 200 GeV, used for the first time in this kind of searches. All-flavor neutrino interactions are also considered now in the analysis. An unbinned maximum likelihood approach is used to determine the sensitivity to the spin-dependent and spin-independent WIMP scattering cross-section, for WIMP masses from 50 GeV/c$^2$ to 10 TeV/c$^2$ and for three different annihilation channels.
| Poster prize | Yes |
|---|---|
| Given name | Chiara |
| Surname | Poirè |
| First affiliation | Università degli Studi di Salerno |
| Second affiliation | INFN Sezione Napoli - Gruppo collegato di Salerno |
| Institutional email | cpoire@unisa.it |
| Gender | Female |
| Collaboration (if any) | ANTARES |
