Probing an MeV-scale scalar boson in association with a TeV-Scale top-quark partner at the LHC

Studies of Highly-boosted Top Quarks Near the TeV Scale Using Jet Masses at the LHC

Hiding a Heavy Higgs Boson at the 7 TeV LHC

A heavy Standard Model Higgs boson is not only disfavored by electroweak precision observables but is also excluded by direct searches at the 7 TeV LHC for a wide range of masses. Here, we examine scenarios where a heavy Higgs boson can be made consistent with both the indirect constraints and the direct null searches by adding only one new particle beyond the Standard Model. This new particle ...

Charged Higgs production with a top quark at the LHC

I discuss charged Higgs production via the process bg → tH− at the LHC. I show that the cross section is dominated by soft-gluon corrections and I provide results for its dependence on the charged Higgs mass and on the scale, including higher-order effects. Presented at the DIS 2004 Workshop, Strbske Pleso, Slovakia, 14-18 April, 2004.

Top Quark Physics at the LHC

Even though its existence was predicted a few decades ago, and its discovery was made more than a decade ago, the top quark still plays a major role in the forefront of the experimental and theoretical challenges of high energy physics. At the LHC, the importance of the top quark can be recognized in a number of perspectives over the lifetime of the accelerator and the general purpose detectors...

Higgs boson pair production at the LHC: top-quark mass effects at next-to-leading order

Higgs boson pair production is considered at next-to-leading order with special emphasis on the effect of a finite top quark mass. It is shown that, unlike for single-Higgs boson production, power-suppressed corrections are numerically important.