27,891 research outputs found
Orientable closed 3-manifolds with surface-complexity one
After a short summary of known results on surface-complexity of closed
3-manifolds, we will classify all closed orientable 3-manifolds with
surface-complexity one.Comment: 9 pages, 3 figures, 1 table; minor changes: appendix on a theorem
stated in arXiv:0804.0695 adde
Vector Boson Production at Hadron Colliders: Results from HERWIG and Resummed Calculations
We discuss vector boson production at hadron colliders and the treatment of
the initial-state radiation according to Monte Carlo parton shower simulations
and resummed calculations. In particular, we investigate the effect of
matrix-element corrections to the HERWIG event generator on W/Z transverse
momentum distributions.Comment: 13 pages, Talk given at the 22nd annual MRST
(Montreal-Rochester-Syracuse-Toronto) Meeting on High Energy Physics (MRST
2000), Rochester, NY, U.S.A., 8-9 May 200
Theoretical issues on the top mass reconstruction at hadron colliders
I discuss a few selected topics related to the reconstruction of the mass of
the top quark at hadron colliders. In particular, the relation between the
measured top mass and theoretical definitions, such as the pole or MSbar mass,
is debated. I will also summarize recent studies on the Monte Carlo uncertainty
due to the fragmentation of bottom quarks in top decays.Comment: 8 pages, 4 figures, 3 tables. Talk given at TOP 2010, 3rd
International Workshop on Top Quark Physics, May 31 - June 4, Bruges, Belgiu
Heavy flavours: theory summary
I summarize the theory talks given in the Heavy Flavours Working Group. In
particular, I discuss heavy-flavour parton distribution functions, threshold
resummation for heavy-quark production, progress in fragmentation functions,
quarkonium production, heavy-meson hadroproduction.Comment: 6 pages. Talk given at DIS 2005, XIII Workshop on Deep Inelastic
Scattering, April 27-May 1, 2005, Madison, WI, U.S.
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