240 citations · 1.2k across the 26 of their papers we have counts for
26 papers
Pinpoint resource allocation for GPU batch applications
Tim Voigtländer, Manuel Giffels, Günter Quast +2
With the increasing usage of Machine Learning (ML) in High energy physics (HEP), there is a variety of new analyses with a large spread in compute resource requirements, especially…
kafe2 -- a Modern Tool for Model Fitting in Physics Lab Courses
Johannes Gäßler, Günter Quast, Daniel Savoiu +1
Fitting models to measured data is one of the standard tasks in the natural sciences, typically addressed early on in physics education in the context of laboratory courses, in whi…
Optimal statistical inference in the presence of systematic uncertainties using neural network optimization based on binned Poisson likelihoods with nuisance parameters
Stefan Wunsch, Simon Jörger, Roger Wolf +1
Data analysis in science, e.g., high-energy particle physics, is often subject to an intractable likelihood if the observables and observations span a high-dimensional input space.…
Reducing the dependence of the neural network function to systematic uncertainties in the input space
Stefan Wunsch, Simon Jörger, Roger Wolf +1
Applications of neural networks to data analyses in natural sciences are complicated by the fact that many inputs are subject to systematic uncertainties. To control the dependence…
Dynamic Virtualized Deployment of Particle Physics Environments on a High Performance Computing Cluster
Felix Bührer, Frank Fischer, Georg Fleig +11
The NEMO High Performance Computing Cluster at the University of Freiburg has been made available to researchers of the ATLAS and CMS experiments. Users access the cluster from ext…
Identifying the relevant dependencies of the neural network response on characteristics of the input space
Stefan Wunsch, Raphael Friese, Roger Wolf +1
The relation between the input and output spaces of neural networks (NNs) is investigated to identify those characteristics of the input space that have a large influence on the ou…
A Roadmap for HEP Software and Computing R&D for the 2020s
Johannes Albrecht, Antonio Augusto Alves, Guilherme Amadio +307
Particle physics has an ambitious and broad experimental programme for the coming decades. This programme requires large investments in detector hardware, either to build new facil…
ARTUS - A Framework for Event-based Data Analysis in High Energy Physics
Joram Berger, Fabio Colombo, Raphael Friese +5
ARTUS is an event-based data-processing framework for high energy physics experiments. It is designed for large-scale data analysis in a collaborative environment. The architecture…
RooStatsCms: a tool for analysis modelling, combination and statistical studies
Danilo Piparo, Gregory Schott, Gunter Quast
RooStatsCms is an object oriented statistical framework based on the RooFit technology. Its scope is to allow the modelling, statistical analysis and combination of multiple search…
RooStatsCms: a tool for analyses modelling, combination and statistical studies
D. Piparo, Gregory Schott, G. Quast
The RooStatsCms (RSC) software framework allows analysis modelling and combination, statistical studies together with the access to sophisticated graphics routines for results visu…
Fermion pair production in e+e- collisions at 189-209 GeV and constraints on physics beyond the Standard Model
The ALEPH Collaboration
Cross sections, angular distributions and forward-backward asymmetries are presented, of two-fermion events produced in e+e- collisions at centre-of-mass energies from 189 to 209 G…
Absolute Lower Limits on the Masses of Selectrons and Sneutrinos in the MSSM
ALEPH Collaboration
The results of searches for selectrons, charginos and neutralinos performed with the data collected by the ALEPH detector at LEP at centre-of-mass energies up to 209 GeV are interp…
Search for Single Top Production in e+e- Collisions at sqrt(s) up to 209GeV
ALEPH Collaboration
Single top production via the flavour changing neutral current reactions e+e- -> \bar{t}c, \bar{t}u is searched for within the 214 pb-1 of data collected by ALEPH at centre-of-mass…
Search for charginos nearly mass degenerate with the lightest neutralino in e+e- collisions at centre-of-mass energies up to 209GeV
ALEPH Collaboration
A search for charginos nearly mass degenerate with the lightest neutralino is performed with the data collected by the ALEPH detector at LEP, at centre-of-mass energies between 189…
Inclusive Production of the omega and eta Mesons in Z Decays, and the Muonic Branching Ratio of the omega
ALEPH Collaboration
The inclusive production of the omega(782) vector meson in hadronic Z decays is measured and compared to model predictions. The analysis is based on 4 million hadronic Z decays rec…
Production of Ds** mesons in hadronic Z decays
ALEPH Collaboration
The production rates of the orbitally excited Ds** mesons, Ds1 and Ds2*, are measured with the 4.1 million hadronic Z decays recorded by the ALEPH detector during 1991--1995. The D…
Measurement of Ab_FB using inclusive b-hadron decays
ALEPH Collaboration
Based on a sample of four million events collected by ALEPH from 1991 to 1995, a measurement of the forward-backward asymmetry in Z -> b-barb decays using inclusive final states is…
Study of the fragmentation of b quarks into B mesons at the Z peak
ALEPH Collaboration
The fragmentation of b quarks into B mesons is studied with four million hadronic Z decays collected by the ALEPH experiment during the years 1991-1995. A semi-exclusive reconstruc…
Search for Supersymmetric Particles in e+e- Collisions at sqrt(s) up to 202GeV and Mass Limit for the Lightest Neutralino
ALEPH Collaboration
Searches for pair production of squarks, sleptons, charginos, and neutralinos are performed with the data collected by the ALEPH detector at LEP at centre-of-mass energies from 188…
Observation of an Excess in the Search for the Standard Model Higgs Boson at ALEPH
ALEPH Collaboration
A search has been performed for the Standard Model Higgs boson in the data sample collected with the ALEPH detector at LEP, at centre-of-mass energies up to 209GeV. An excess of 3s…
Measurements of BR (b -> tau- nubar_tau X) and BR (b -> tau- nubar_tau D*+- X) and Upper Limits on BR (B- -> tau- nubar_tau) and BR (b -> s nu nubar)
ALEPH Collaboration
Inclusive branching ratios involving b to tau transitions are measured in approximately four million hadronic Z decays collected by the ALEPH detector at LEP. The fully-inclusive b…
Study of the CP asymmetry of B0 -> J/psi K0S decays in ALEPH
ALEPH Collaboration
The decay B0 -> J/psi K0_S is reconstructed with J/psi -> e+ e- or mu+ mu- and K0_S -> pi+ pi-. From the full ALEPH dataset at LEP1 of about 4 million hadronic Z decays, 23 candida…
Measurement of the Bbar0 and B- Meson Lifetimes
ALEPH Collaboration
The lifetimes of the Bbar0 and B- mesons are measured using a sample of about four million hadronic Z decays collected from 1991 to 1995 with the ALEPH detector at LEP. The data sa…
Search for the glueball candidates f0(1500) and fJ(1710) in gamma gamma collisions
ALEPH Collaboration
Data taken with the ALEPH detector at LEP1 have been used to search for gamma gamma production of the glueball candidates f0(1500) and fJ(1710) via their decay to pi+pi-. No signal…