LIP - Laboratory of Instrumentation and Experimental Particle Physics

Design and performance of a FLOw TUbe System, FLOTUS, for the CERN CLOUD chamber

Abstract. The primary functions of the FLOw TUbe System (FLOTUS) are to provide the CERN CLOUD chamber with a source of a) pre-aged organic vapours and particles, and b) cloud condensation nuclei (CCN) of any chosen chemical composition and diameter. The quartz flow tube has 20 c...

High-accuracy prediction of Kβ/Kα intensity ratios via explainable stacked-ensemble learning : A web-based computational tool

The Kβ/Kα intensity ratios are critical parameters that quantitatively characterize atomic shell transition dynamics and radiative branching probabilities. In this study, we systematically evaluated the capability of machine learning (ML) algorithms to predict these ratios, as we...

Antenna subtraction at NNLO for heavy quark pair production at hadron colliders: the non-diagonal channels

A bstract We present the calculation involving the qq , qq ′ and qg partonic channels contributing to heavy-quark pair production at hadron colliders through next-to-next-to-leading order in QCD using the antenna subtraction formalism. The calculation is performed in full colour...

Identification of a nanosecond isomer of $$^{164}$$Tb

Abstract This letter reports on the identification of a new isomeric state of $$^{164}$$ 164 Tb ( $$Z=65$$ Z = 65 , $$N=99$$ N = 99 ), which was measured with the DESPEC setup at the GSI Helmholtzzentrum für Schwerionenforschung GmbH following the first relativistic fragmentation...

Research Opportunities and Challenges of the EU’s Digital Services Act

Proposing practical measures to ensure the Digital Services Act fulfills its transparency and accountability goals.