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SUMMARY:Felix Kahlhoefer - From picoseconds to teraseconds: The lifetime f
 rontier of particle physics - Felix Kahlhoefer (RWTH Aachen U.)
DTSTART:20230310T160000Z
DTEND:20230310T170000Z
UID:TALK194938@talks.cam.ac.uk
CONTACT:Maeve Madigan
DESCRIPTION:Zoom: https://us02web.zoom.us/j/85896693592?pwd=cDBJMVJJNlkwcG
 9FWFBJNTJmTTJyQT09\nMeeting ID: 858 9669 3592\nPasscode: 199505\n\nParticl
 es that are long-lived on the time scales relevant for particle physics an
 d cosmology are a generic feature of the Standard Model and many of its ex
 tensions. In this talk I will motivate the search for long-lived particles
  and discuss a range of experimental and observational strategies to make 
 progress on the "lifetime frontier". While long-lived particles with lifet
 imes in the range from picoseconds to microseconds are best probed with co
 llider and fixed-target experiments\, longer lifetimes lie in the realm of
  astroparticle physics and cosmology. I will discuss how dark matter direc
 t detection experiments can search for long-lived particles with lifetimes
  in the range from seconds to hours and explore the sensitivity of Big Ban
 g Nucleosynthesis and the Cosmic Microwave Background to particles that de
 cay on the scale of hours to millions of years. While most of this talk wi
 ll be quite model-independent\, I will present results for a few benchmark
  scenarios\, including strongly interacting dark sectors\, axion-like part
 icles and inelastic dark matter. 
LOCATION:Potter Room (B1.19)
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