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(1) Presentation(s)


Jeu. 20/01/2022 14:00 Webinar

CAPUTO Andrea (Tel Aviv University and Weizmann Institute)
online seminar - CNRS candidate section 2
Dark photon limits: a cookbook

(Interactions fondamentales, Astroparticules et Cosmologie)


The dark photon is a massive hypothetical particle that interacts with the Standard Model by kinetically mixing with the visible photon. Due to the similarities with the electromagnetic signals generated by axions, several bounds on dark photon signals are simply reinterpretations of historical bounds set by axion haloscopes. However, the dark photon has a property that the axion does not: an intrinsic polarisation. Due to the rotation of the Earth, accurately accounting for this polarisation is nontrivial, and highly experiment-dependent. In this talk I will argue that if one does account for this polarisation, and the rotation of the Earth, experimental sensitivity to the dark photon’s kinetic mixing parameter can be improved by over an order of magnitude. I will then detail the strategies that would need to be taken to properly optimise a dark photon search.

Pour plus d'informations, merci de contacter Frigerio M.