16th Patras Workshop on Axions, WIMPs and WISPs

Session

Session 3

14 Jun 2021, 16:40

Online Workshop

Conveners

Session 3

• DMITRY BUDKER (Helmholtz Institute Mainz)

107. Effects of a hidden photon-dark matter background in axion-photon interactions

Prof. Paola Arias Reyes

14/06/2021, 16:40

In this work we investigate a scenario where the dark matter of the universe is made of light hidden photons. Thanks to a $Z_2$ symmetry, the kinetic mixing with the photon is forbidden and the dark photon interacts with the Standard Model only via an axion-like particle, that acts as a messenger. Focusing on signatures involving the ordinary photon, our survey of the phenomenology includes...

101. COSINUS - Direct Search for Dark Matter with Cryogenic NaI Detectors

Martin Stahlberg (Max-Planck Institute for Physics)

14/06/2021, 17:00

In the summer of 2021, construction of the COSINUS experiment will begin at the Laboratori Nazionali del Gran Sasso in Italy. COSINUS (Cryogenic Observatory for SIgnatures seen in Next-generation Underground Searches) is a direct dark matter search experiment specifically designed to cross-check the signal reported by the DAMA/LIBRA collaboration since many years. Featuring high-purity...

86. The DMRadio Program

Reyco Henning (UNC Chapel Hill)

14/06/2021, 17:20

DMRadio, which now includes the ABRACADABRA collaboration, is a multi-detector program to search for axion dark matter (aDM) with mass below 1 𝜇eV using a lumped-element resonator. DMRadio-50L is a toroidal detector that will probe aDM over the range 20 peV$<m_a<$ 20 neV down to photon couplings of $g_{a\gamma \gamma }>5\times {10}^{-15}{\mathrm{GeV}}^{-1}$. It is currently under...

43. Supernova bounds on axion-like particles coupled with nucleons and electrons

Giuseppe Lucente (Istituto Nazionale di Fisica Nucleare)

14/06/2021, 17:40

We investigate the potential of core-collapse supernovae (SNe) to constrain axion-like particles (ALPs) coupled to nucleons and electrons. ALPs coupled to nucleons can be efficiently produced in the SN core via nucleon-nucleon bremsstrahlung and, for a wide range of parameters, leave the SN unhindered producing a large ALP flux. For ALP masses exceeding 1 MeV, these ALPs would decay into...