In the past decades, event generators such as PYTHIA [1, 2] and HERWIG [3, 4] have been central for nearly all physics analyses at particle physics experiments at the high-energy frontier. This will also hold true at the LHC, where a large number of interesting signals for new particles or new phenomena (the Higgs boson or any other manifestation of the mechanism behind electro-weak symmetry br...

Although significant progress has been made in Europe regarding air quality, problems still remain acute for some pollutants, notably NO2 and Particulate Matter (fine and coarse fractions) in specific regions/cities. One issue regarding air quality management is governance, i.e. the selection of appropriate and cost effective strategies over the area controlled by policy makers. In this work we...

Abstract Modern machine learning methods offer great potential for increasing the efficiency of Monte Carlo event generators. We present latest developments in context SHERPA generation framework. These include phase space sampling amended by normalizing flows and a new unweighting procedure based on neural-network surrogates full matrix elements. discuss corresponding general construction crit...

We present a fully automated framework as part of the Sherpa event generator for the computation of tree-level cross sections in Beyond Standard Model scenarios, making use of model information given in the Universal FeynRules Output format. Elementary vertices are implemented into C++ code automatically and provided to the matrix-element generator Comix at runtime. Widths and branching ratios ...

Key points Iron acts as a cofactor in the stabilization of hypoxic-inducible factor family, and plays an influential role modulation hypoxic pulmonary vasoconstriction. It is uncertain whether iron regulation altered lowlanders during either (1) ascent to high altitude, or (2) following partial acclimatization, when compared high-altitude adapted Sherpa. During 5050 m, rise artery systolic pres...

OBJECTIVES People living at high altitude experience unavoidable low oxygen levels (hypoxia). While acute hypoxia causes an increase in oxidative stress and damage despite higher antioxidant activity, the consequences of chronic hypoxia are poorly understood. The aim of the present study is to assess antioxidant activity and oxidative damage in high-altitude natives and upward migrants. METHO...