Speaker
Mateusz Dyndal
(ATLAS)
Description
The ATLAS collaboration has carried out a study of diffractive dijet production at 7 TeV pp
collisions at the LHC, i.e. events with a hadronic system containing at least two jets in addition
to a large region of pseudorapidity devoid of hadronic activity. The data distributions are
compared with Monte Carlo models and the rapidity gap survival probability has been estimated
in the kinematic region with high diffractive contribution.
In the absence of forward proton tagging, exclusive processes can be distinguished in the
central part of the ATLAS detector exploiting the large rapidity gap in the central region and the
absence of charged particles reconstructed in the inner tracking detector. This strategy has
been exploited to study the exclusive production of dilepton pairs in the data taken at
centreofmass
energies of 7 and 8 TeV. The 7 TeV study concentrates on a precision
measurement of the dielectron
and dimuon
process, while the 8 TeV measurement explores
the exclusive production of WW pairs in the electronmuon
channel.
Prospects for exclusive jet production studies with the forward proton tagging capability of the
AFP subdetector
of ATLAS will be discussed. A first look at data taken jointly with the ATLAS
and LHCf detectors in a p+Pb run will also be shown.
Primary author
Mateusz Dyndal
(ATLAS)
