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SUMMARY:Inelastic proton-proton cross section at 13 TeV - Miguel Arratia-M
 unoz (Cambridge)
DTSTART:20151103T150000Z
DTEND:20151103T160000Z
UID:TALK60356@talks.cam.ac.uk
CONTACT:Nick Barlow
DESCRIPTION:The inelastic cross-section is a basic property of the proton\
 , yet it cannot be calculated from theory. In 1973 experiments at CERN dis
 covered that it rises with energy—as Heisenberg predicted. Today\, the L
 HC sets the energy frontier at 13 TeV\, and theory predicts an asymptotic 
 “black-disk” limit.\nI will present a recent measurement of the inelas
 tic cross-section with the ATLAS detector. One of the key ingredients for 
 this study is the rate at which the LHC produces proton collisions—the l
 uminosity. I will describe how we measure the LHC luminosity and achieve a
  percent-level accuracy.\nThis result is also a key input for cosmic ray e
 xperiments\; I will discuss this connection\, and planned new studies in t
 his area.\n
LOCATION:Rutherford Seminar Room B
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