43,478 research outputs found
IR-Improved DGLAP-CS QCD Parton Showers in Pythia8
We introduce the recently developed IR-improved DGLAP-CS theory into the
showers in Pythia8, as this Monte Carlo event generator is in wide use at LHC.
We show that, just as it was true in the IR-improved shower Monte Carlo
Herwiri, which realizes the IR-improved DGLAP-CS theory in the Herwig6.5
environment, the soft limit in processes such as single heavy gauge boson
production is now more physical in the IR-improved DGLAP-CS theory version of
Pythia8. This opens the way to one's getting a comparison between the actual
detector simulations for some of the LHC experiments between IR-improved and
unimproved showers as Pythia8 is used in detector simulations at LHC whereas
Herwig6.5, the environment of the only other IR-improved DGLAP-CS QCD MC in the
literature, Herwiri1.031, is not any longer so used. Our achieving the
availability of the IR-improved DGLAP-CS Pythia8 then is an important step in
the further development of the LHC precision theory program under development
by the author and his collaborators.Comment: 6 pages, 1 figur
Massive Elementary Particles and Black Holes in Resummed Quantum Gravity
We use exact results in a new approach to quantum gravity to show that the
classical conclusion that a massive elementary point particle is a black hole
is obviated by quantum loop effects. Further phenomenological implications are
discussed.Comment: 4 pages, 1 figure; presented at ICHEP0
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