408 citations · 2.3k across the 88 of their papers we have counts for
90 papers
Benchmarking Machine Learning Architectures for ttH Multilepton Signal Sensitivity
Lukáš Viceník, André Sopczak, Oleksandr Shekhovtsov
Statistical testing for signal discovery and signal-strength estimation in high-energy physics increasingly relies on machine-learning models trained on simulated data. We present…
High-mass new scalars at the LHC, with H in the final state
Andre Sopczak
The search for new particles, conducted at the LHC by the ATLAS and CMS collaborations, covers several production and decay modes, leading to a large variety of final states that c…
Hypothesis Tests for Observing Quantum Entanglement in HWW at the LHC
Vincent Alexander Croft, Lennart Voelz, Andrii Vak +2
We present a novel experimental strategy for testing quantum entanglement in Higgs boson decays to boson pairs at the Large Hadron Collider. Unlike theoretical approaches that…
Prospects for Higgs Boson Research at the LHC
Andre Sopczak
The search for Higgs bosons in the Standard Model (SM) of particle physics and Beyond the Standard Model (BSM) started intensively at the Large Electron-Positron (LEP) collider, wh…
Overview of ATLAS forward proton detectors: status, performance and new physics results
A. Sopczak
A key focus of the physics program at the LHC is the study of head-on proton-proton collisions. However, an important class of physics can be studied for cases where the protons na…
The Czech Particle Physics Project
Andre Sopczak, Peter Zacik
We present the status of the Czech Particle Physics Project (CPPP). The CPPP is a learning tool in masterclasses aimed at high school students (aged 15 to 18). The project is struc…
Overview of the latest ATLAS and ATLAS-AFP photoproduction results
Andre Sopczak
A key focus of the physics program at the LHC is the study of head-on proton-proton collisions. However, an important class of physics can be studied for cases where the protons na…
Higgs Boson Searches at the LHC Beyond the Standard Model
André Sopczak
The latest results of Higgs boson searches beyond the Standard Model from the ATLAS and CMS experiments are reviewed. This includes searches for additional neutral, charged, and do…
Overview of ATLAS Forward Proton (AFP) detectors in Run-2 and outlook for Run-3 analyses
Andre Sopczak
We describe the status of the ATLAS Forward Proton (AFP) detectors in Run-2 and the outlook for Run-3 analyses. The performance is discussed. This includes the Tracking and Time-of…
A Portal Dedicated to Higgs Bosons for Experts and the General Public
Andre Sopczak
As an educational aid and source for expert information, a web portal dedicated to Higgs boson research is presented. A database is created with more than 1000 relevant articles us…
Outreach Modules for New Particle Searches Using the ATLAS Forward Proton Detector and for Higgs Boson Physics
Andre Sopczak
We present two modules as part of the Czech Particle Physics Project (CPPP). These modules are intended as learning tools in masterclasses aimed at high-school students (aged 15 to…
Searches for Leptoquarks with the ATLAS Detector
Andre Sopczak
Leptoquarks (LQ) are predicted by many new physics theories to describe the similarities between the lepton and quark sectors of the Standard Model and offer an attractive potentia…
Precision Measurements in the Higgs Sector at ATLAS and CMS
Andre Sopczak
A concise review of precision measurements in the Higgs sector of the Standard Model (SM) of particle physics is given using ATLAS and CMS data. The results are based on LHC Run-2…
Search for vector-boson resonances decaying to a top quark and bottom quark in the lepton plus jets final state in collisions at = 13 TeV with the ATLAS detector
ATLAS Collaboration
A search for new charged massive gauge bosons, , is performed with the ATLAS detector at the LHC. Data were collected in proton-proton collisions at a centre-of-mass ener…
SUSY (ATLAS)
Andre Sopczak
During the LHC Run-II data-taking period, several searches for supersymmetric particles were performed by the ATLAS collaboration. The results from these searches are concisely rev…
Precision Luminosity of LHC Proton-Proton Collisions at 13 TeV Using Hit-Counting with TPX Pixel Devices
Andre Sopczak, Babar Ali, Thanawat Asawatavonvanich +19
A network of Timepix (TPX) devices installed in the ATLAS cavern measures the LHC luminosity as a function of time as a stand-alone system. The data were recorded from 13 TeV proto…
Searches for ttH (Multilepton+Diphoton) Production in ATLAS
Andre Sopczak
After the discovery of a Higgs boson, the measurements of its properties are at the forefront of research. The determination of the associated production of a Higgs boson and a pai…
MPX Detectors as LHC Luminosity Monitor
Andre Sopczak, Babar Ali, Nedaa Asbah +15
A network of 16 Medipix-2 (MPX) silicon pixel devices was installed in the ATLAS detector cavern at CERN. It was designed to measure the composition and spectral characteristics of…
Luminosity Monitoring in ATLAS with MPX Detectors
Andre Sopczak
The ATLAS-MPX detectors are based on the Medipix2 silicon devices designed by CERN for the detection of multiple types of radiation. Sixteen such detectors were successfully operat…
Search for W'->tb resonances with left- and right-handed couplings to fermions
D0 Collaboration, V. Abazov
We present a search for the production of a heavy gauge boson, W', that decays to third-generation quarks, by the D0 Collaboration in ppbar collisions at sqrt(s)= 1.96 TeV. We set…
Azimuthal decorrelations and multiple parton interactions in photon+2 jet and photon+3 jet events in ppbar collisions at sqrt{s}=1.96 TeV
D0 Collaboration, V. Abazov
Samples of inclusive photon+2 jet and photon+3 jet events collected by the D0 experiment with an integrated luminosity of about 1fb^-1 in ppbar collisions at sqrt{s}=1.96 TeV are u…
Precise study of the Z/gamma* boson transverse momentum distribution in ppbar collisions using a novel technique
D0 Collaboration, V. M. Abazov
Using 7.3 pb-1 of ppbar collisions collected by the D0 detector at the Fermilab Tevatron, we measure the distribution of the variable \phistar, which probes the same physical effec…
Determination of the width of the top quark
V. M. Abazov, B. Abbott, M. Abolins +428
We extract the total width of the top quark, Gamma_t, from the partial decay width Gamma(t -> W b) measured using the t-channel cross section for single top quark production and fr…
Search for ZH to llbb production in 4.2 fb^-1 of ppbar collisions at sqrt(s) = 1.96 TeV
D0 Collaboration, V. Abazov
We present a search for the standard model Higgs boson produced in association with a Z boson in 4.2 fb^-1 of p-pbar collisions, collected with the D0 detector at the Fermilab Teva…