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SUMMARY:Dark Matter searches at ATLAS - Caterina Pizio\, INFN Milano
DTSTART:20140506T140000Z
DTEND:20140506T150000Z
UID:TALK51615@talks.cam.ac.uk
CONTACT:37236
DESCRIPTION:The conundrum of Dark Matter has been attacked for decades.\nN
 umerous independent astrophysical experiments have observed this mysteriou
 s substance\, which comprises five times more of the Universe's content th
 an ordinary visible matter. \nThe defining characteristic of DM is that it
  has only been observed to interact via the gravitational force\, however 
 DM may interact with particles from the Standard Model (SM) through some f
 orce at the weak scale or below.\nIn this paradigm\, DM particles are take
 n to be a type of Weakly Interacting Massive Particle (WIMP) which might b
 e produced in hadronic collision at the LHC.\nSearch  for DM at ATLAS are 
 extremely important as they can can probe entirely new regions of phase sp
 ace.\nHowever WIMP DM particles are unobservable by ATLAS and stable enoug
 h not to decay within the detector.\nThey manifest as Missing Momentum in 
 the Transverse plane (MET). The presence of particles recoiling against WI
 MPS leads to a monoX+MET signature.\nSearching for such rare processes req
 uires outstanding performance in terms of measurements of momenta of all t
 he particles produced in the interactions (leptons\, photons\, hadronic je
 ts) and dedicated techniques to suppress fake signals.\nIn this talk\, the
  key experimental points of the current searches for DM signatures at ATLA
 S are reviewed\, together with the current results in the LHC Run-I data.
LOCATION:Rutherford Seminar Room B
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