Publications by Jan Steggemann

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An analysis is presented based on models of the intrinsic transverse momentum (intrinsic (Formula presented)) of partons in nucleons by studying the dilepton transverse momentum in Drell-Yan events. Using parameter tuning in event generators and existing d ...

A search for long-lived particles (LLPs) produced in decays of standard model (SM) Higgs bosons is presented. The data sample consists of 137 fb(-1) of proton-proton collisions at root s = 13 TeV, recorded at the LHC in 2016-2018. A novel technique is empl ...

A search for ZZ and ZH production in the b (b) over barb (b) over bar final state is presented, where H is the standard model (SM) Higgs boson. The search uses an event sample of proton-proton collisions corresponding to an integrated luminosity of 133 fb( ...

Measurements are presented of inclusive and differential cross sections for Z boson associated production of top quark pairs (t (t) over barZ) and single top quarks (tZq or tWZ). The data were recorded in proton-proton collisions at a center-of-mass energy ...

Multijet events at large transverse momentum (p(T)) are measured at root s = 13 TeV using data recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of 36.3 fb(-1). The multiplicity of jets with p(T) > 50 GeV that are produce ...

A search for the exotic decay of the Higgs boson to a pair of light pseudoscalars, each of which subsequently decays into a pair of photons, is presented. The search uses data from proton-proton collisions at root s = 13TeV recorded with the CMS detector a ...

The first search for the Z boson decay to tau tau mu mu at the CERN LHC is presented, based on data collected by the CMS experiment at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV and corresponding to an integrated luminosity of ...

During 2022/2023 the optimal inefficiency of the Veto system of the SND@LHC detector was measured to be (7.8 ± 2.8) × 10−8. To reduce this inefficiency, a third Veto plane was installed during the 2023-2024 Year End Technical Stop. In addition, the Veto sy ...

Using proton-proton collision data corresponding to an integrated luminosity of 140 fb(-1) collected by the CMS experiment at root s = 13 TeV, the Lambda(0)(b) -> J/psi Xi K--(+) decay is observed for the first time, with a statistical significance exceedi ...

Jan Steggemann

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Energy-scaling behavior of intrinsic transverse-momentum parameters in Drell-Yan simulation

Search for Long-Lived Particles Decaying in the CMS End Cap Muon Detectors in Proton-Proton Collisions at root s=13 TeV

Search for ZZ and ZH production in the b(b)over-barb(b)over-bar final state using proton-proton collisions at √s=13 TeV

Measurements of Inclusive and Differential Cross Sections for Top Quark Production in Association with a Z Boson in Proton-proton Collisions at √s=13 Tev

Measurements of jet multiplicity and jet transverse momentum in multijet events in proton-proton collisions at √s=13 TeV

Search for the exotic decay of the Higgs boson into two light pseudoscalars with four photons in the final state in proton-proton collisions at √s=13 TeV

Search for the Z Boson Decay to ττμμ in Proton-Proton Collisions at √s=13 TeV

Installation and performance of the 3rd Veto plane at the SND@LHC detector

Observation of the Λb0 → J/ψ Ξ-K+ decay