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Event: 'Higgs Production At The LHC And Summing Loops In QCD, By Jeremy (CENTRA/IST)'

CENTRA Seminars
Date: Sunday, August 09, 2009 At 02:30 AM
Duration: 1 Hour
Contact Info:
Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

The best chance for detecting the Higgs boson at the LHC is through exclusive Higgs
production in pp scattering, where the Higgs is produced in t-channel BFKL Pomeron
exchange with no other production, creating large rapidity gaps between the Higgs and the
emerging protons. The survival probability of the large rapidity gaps is derived by
suppressing diagrams with additional parton showers, which give rise to additional
inelastic scattering which fills up the large rapidity gaps. To accurately estimate the
survival probability, one has to solve the long standing theoretical problem of summing
over the complete set of Pomeron loop diagrams in QCD, in order to find the contribution
of all hard re-scattering diagrams to the survival probability. The survival probability
is crucial for LHC experiments aimed at detecting the Higgs signal, and the summation of
loop diagrams in QCD is a big advance in high energy Physics both from an experimental
and a theoretical point of view.

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