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SUMMARY:The land of dark sectors:  A collider perspective - Sukanya Sinha\
 , University of Manchester
DTSTART:20251125T110000Z
DTEND:20251125T120000Z
UID:TALK236527@talks.cam.ac.uk
CONTACT:Dr Paul Swallow
DESCRIPTION:Dark Matter (DM) constitutes a substantial but unexplained fra
 ction of the universe\, and the Standard Model (SM) of particle physics of
 fers no viable candidate\, highlighting the need for new theories and dete
 ction strategies. Numerous theoretical models predict DM particles\, makin
 g their detection a strong pillar of the Large Hadron Collider (LHC) physi
 cs program. Yet\, no direct evidence has been found so far. The lack of di
 scovery indicates that if DM lies within the LHC’s reach\, its experimen
 tal signature may be subtle. New theories suggest DM isn’t just one part
 icle\, but part of a hidden dark sector (DS). This DS is governed by a new
  dark force binding DM in a way that mirrors the SM\, described by the dar
 k Quantum Chromodynamics (dark QCD) framework. This dark force mediates in
 teractions within the DS and between DS and SM particles. Dark QCD models 
 predict fundamental components\, i.e. dark quarks\, confined at an energy 
 scale comparable to that of QCD\, which hadronise to form dark hadrons dec
 aying within the detector. Depending on their lifetimes\, these dark hadro
 ns can produce unique collider signatures like prompt semi-visible jets or
  displaced emerging jets. With new particle reconstruction techniques\, ex
 periments like ATLAS and CMS are finally starting to probe this hidden sec
 tor and the unconventional signatures that come along with it. Early exper
 imental results are emerging\, and we’re only at the beginning. In this 
 talk\, I’ll start with an overview of the ATLAS dark sector paradigm and
  then explore in detail what we’re searching for\, how we’re going aft
 er it\, and the kinds of unconventional signals that might appear in the d
 etector.
LOCATION:Ray Dolby Center -- Seminar Room: D2.002 
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