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Pseudoscalar top-Higgs coupling: exploration of CP-odd observables to resolve the sign ambiguity
(Springer, 2016-07)
We present a collection of CP-odd observables for the process pp→t(→bℓ+νℓ)t¯(→b¯ℓ−ν¯ℓ)H that are linearly dependent on the scalar (kt) and pseudoscalar (k˜ t) top-Higgs coupling and hence sensitive to the corresponding ...
Hadron plus photon production in polarized hadronic collisions at next-to-leading order accuracy
(American Physical Society, 2011-04)
We compute the next-to-leading order QCD corrections to the polarized (and unpolarized) cross sections for the production of a hadron accompanied by an opposite-side prompt photon. This process, being studied at RHIC, ...
Search for dark matter in events with heavy quarks and missing transverse momentum in $pp$ collisions with the ATLAS detector
(Springer, 2015-02)
This article reports on a search for dark matter pair production in association with bottom or top quarks in 20.3 fb−1 of pp collisions collected at s√=8 TeV by the ATLAS detector at the LHC. Events with large missing ...
Measurement of the top quark polarization and t t spin correlations using dilepton final states in proton-proton collisions at s =13 TeV
(2019-10-08)
Measurements of the top quark polarization and top quark pair (tt) spin correlations are presented using events containing two oppositely charged leptons (e+e-, e±μ or μ+μ-) produced in proton-proton collisions at a ...
Search for a narrow, spin-2 resonance decaying to a pair of Z bosons in the qq̄ℓ+ℓ- final state
(2013-01-29)
Results are presented from a search for a narrow, spin-2 resonance decaying into a pair of Z bosons, with one Z-boson decaying into leptons (e+e- or μ+μ-) and the other into jets. An example of such a resonance is the ...