0000000000207847

AUTHOR

Sven Moch

showing 3 related works from this author

Top-quark mass measurements using jet rates at LHC

2013

This work presents a new method to measure the top-quark mass in hadronic collisions[1]. The method uses the sensitivity of the tt̄ + 1-jet production on the top-quark mass. In detail we study the ℛ distribution defined as the tt̄ + 1-jet normalized cross section differential in the invariant mass of the total system and calculated at NLO accuracy. We prove that the ℛ distribution has a high sensitivity to the top-quark mass. Furthermore we investigate and quantify the impact of the dominant theoretical and experimental uncertainties. The results obtained show, that the method has the potential to be competitive in precision with established approaches and allows a complementary measurement…

Scattering cross-sectionPhysicsTop quarkParticle physicsLarge Hadron ColliderPhysicsQC1-999HadronHigh Energy Physics::PhenomenologyInvariant (physics)Nuclear physicsRenormalizationPhysics and Astronomy (all)High Energy Physics::ExperimentMass parameterEPJ Web of Conferences
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Running of the Charm-Quark Mass from HERA Deep-Inelastic Scattering Data

2017

Physics letters / B 775, 233 - 238 (2017). doi:10.1016/j.physletb.2017.11.002

Nuclear and High Energy PhysicsParticle physicsPhotonHigh Energy Physics::LatticeFOS: Physical sciencesContext (language use)53001 natural sciencesCharm quarkrenormalizationNuclear physicsHigh Energy Physics - Phenomenology (hep-ph)deep inelastic scattering0103 physical sciencesddc:530Charm (quantum number)quantum chromodynamics: perturbation theory010306 general physicsPhysicsQuantum chromodynamics010308 nuclear & particles physicsScatteringPhysicsHigh Energy Physics::Phenomenologyhigher-order: 1charm: productionHERADeep inelastic scatteringlcsh:QC1-999quark: massHigh Energy Physics - PhenomenologyDESY HERA Storscale dependence[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]High Energy Physics::Experiment[ PHYS.HPHE ] Physics [physics]/High Energy Physics - Phenomenology [hep-ph]charmlcsh:Physics
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Top-quark mass measurements at LHC: a new approach

2013

We present a new method to measure the top-quark mass in high energetic hadron collisions at the LHC. We study the mass dependence of the production of top-quark pairs in association with an additional jet. The cross section of tt+1Jet production is sensitive to the top-quark mass since gluon radiation depends on the top-quark mass through threshold and cone effects. In particular we study the normalised tt +1Jet cross section differential in the invariant mass of the final state jets. We have investigated the sensitivity of the method together with the impact of various theoretical and experimental uncertainties. We find that the method has the potential to be competitive with existing met…

PhysicsHistoryTop quarkParticle physicsLarge Hadron ColliderHigh Energy Physics::LatticeHadronHigh Energy Physics::PhenomenologyJet (particle physics)530 PhysikComputer Science ApplicationsEducationGluonNuclear physicsRenormalizationCross section (physics)Invariant massHigh Energy Physics::Experimentddc:530
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