Ultra long-lived particles searches with MATHUSLA: MAssive Timing Hodoscope for Ultra-Stable neutraL pArticles.

Policicchio A. per la Collaborazione MATHUSLA

I - Fisica nucleare e subnucleare
Aula 32C-3 - Martedì 18 h 09:00 - 13:00
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Many extensions of the Standard Model predict long-lived neutral particles (LLNP) that can decay to hadronic and leptonic final states. With the current experiments at the particle accelerators, no search strategy will be able to observe the decay of LLNPs with masses above GeV and lifetimes at the limit set by Big Bang Nucleosynthesis (BBN), $c\tau \sim 10^{7}--10^{8}$ m. The MATHUSLA detector concept will be presented. It can be implemented on the surface above ATLAS or CMS detectors in time for the high-luminosity LHC operations, to search for LLNP with lifetimes near the BBN limit.

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