16–17 Dec 2021
Centre for Particle Theory, Durham
Europe/London timezone

Indirect detection of long-lived particles via a less-simplified dark Higgs portal

Not scheduled
20m
Zoom (Centre for Particle Theory, Durham)

Zoom

Centre for Particle Theory, Durham

IPPP & Dept. Mathematical Sciences Durham University South Road Durham DH1 3LE
Poster

Speaker

Krzysztof Jodlowski (National Centre for Nuclear Research)

Description

In this poster I will present recent paper dedicated to indirect detection of long-lived particles in a light dark Higgs portal. I will illustrate the phenomenology of this model, focusing on the signatures of DM and long-lived particles (LLP) in complementary experimental searches. These include i) the intensity frontier searches for light new physics, ii) indirect detection (ID) of secluded WIMPs, and iii) future CMB radiation surveys. Finally, I will highlight the important role of non-local effects present in the ID of LLPs which significantly affects the detection strategies, usually tailored to WIMPs. These effects include a) an additional contribution to the photon flux due to the "GC diffusion" effect, b) a linear flux decrease in the long-lived regime due to finite DM density support, and c) a faster flux decrease with LLP decay length for observations focused on small regions of interest, compared to large ones.

Would you be interested in receiving feedback on your presentation? No
Are you happy for your talk to be recorded? Yes
Will you be pre-recording your talk? No
Could you please give the most relevant category for your talk? Astroparticle

Author

Krzysztof Jodlowski (National Centre for Nuclear Research)

Presentation materials