Doctor of Philosophy Oral Defense - Bahram Shakerin

DateOctober 27, 2017
Time12:15 - 3:00 pm
LocationBaylor Sciences Building, Room A.202
Description
Doctor of Philosophy Oral Defense


Bahram Shakerin

Advisor: B.F.L. Ward


IR-Improved DGLAP-CS Parton Shower Effects in
W+jets at sqrt{s}=7,8, and 13 TeV


It is possible to improve the infrared aspects of the standard treatment of the DGLAP‐CS evolution theory to take into account a large class of higher-order corrections that significantly improve the precision of the theory for
any given level of fixed‐order calculation of its respective kernels. We use recently introduced MC realizations of IR‐improved DGLAP‐CS parton
showers to study the attendant improvement effects in W+jets at the LHC in the MG5_aMC@NLO framework for the exact first order corrections.
Implementation of the new IR‐improved kernels in the framework of HERWIG6.5 results the new IR‐improved parton shower MC HERWIRI1.031.
Events are showered by HERWIG6.5 and HERWIRI1.031 with PTRMS=2.2 GeV and PTRMS=0 GeV respectively. We compare our results with the available LHC data and discuss the corresponding
phenomenological implications.


PublisherDepartment of Physics
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