17–24 Jul 2024
Prague
Europe/Prague timezone

Dark Sector searches with electron and positron beams at NA64@CERN

18 Jul 2024, 11:02
17m
South Hall 1A

South Hall 1A

Parallel session talk 03. Beyond the Standard Model Beyond the Standard Model

Speaker

Anna Marini (INFN-Genova)

Description

Several astrophysical observations indicate that the majority of the mass of the Universe is made of a new type of matter, called Dark Matter (DM), not interacting with light. DM may be composed of a dark sector (DS) of new particles, charged under a new U(1) gauge boson kinetically mixed with the ordinary photon, called dark photon (A'). The NA64 experiment at CERN aims to produce and detect DS particles using the 100 GeV SPS electron beam impinging on a thick active target (electromagnetic calorimeter). In accordance with the ERC funded project POKER, from 2022 NA64 started collecting data also with positron beams, in order to exploit the DS production yield enhancement due to the positron resonant annihilation process. This talk will present latest NA64 results and its future outlook, with a special focus on the progress and perspectives of the positron beam measurement, reporting the sensitivity of the experiment to several beyond SM scenarios.

Alternate track 09. Dark Matter Detection
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Primary author

Anna Marini (INFN-Genova)

Co-author

Presentation materials