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SUMMARY:How bright is the proton? A data driven determination of the photo
 n content of the proton.
DTSTART:20170313T140000
DTEND:20170313T150000
DTSTAMP:20260504T230049Z
UID:0a3ec6c666cb65fa50e1355f91a0fbca29f0830d7542437da1345ae1
CATEGORIES:Conferences - Seminars
DESCRIPTION:Paolo Nason (INFN Milan)\nIt is well known that a fast moving 
 charge particle is accompanied by an ensemble of virtual photons\, that in
  collisions can give rise to photon initiated processes. For electrons the
  distribution of photons is calculable with arbitrary precision. For hadro
 ns\, the accompanying photon system is calculable only for impact paramete
 rs larger than the hadron size. There is interest in computing the impact 
 of initial photons subprocesses at the LHC\, and it was generally though t
 hat\nthe photon distribution in the proton could only be obtained by exper
 imentally studying certain photon initiated processes. In this talk I will
  illustrate recent progress on this matter\, showing that in fact the phot
 on parton densities can be extracted with negligible errors from existing 
 data on the proton electromagnetic structure functions and form factors.
LOCATION:BSP 727 (Cubotron)
STATUS:CONFIRMED
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