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The first measurements of proton emission accompanied by neutron emission in the electromagnetic dissociation (EMD) of Pb208 nuclei in the ALICE experiment at the Large Hadron Collider are presented. The EMD protons and neutrons emitted at very forward rapidities are detected by the proton and neutron zero degree calorimeters of the ALICE experiment. The emission cross sections of zero, one, two,

In this Letter, the first evidence of the (Formula presented) antihypernucleus is presented, along with the first measurement at the LHC of the production of (anti)hypernuclei with mass number (Formula presented), specifically (Formula presented) and (Formula presented). In addition, the antiparticle-to-particle ratios for both hypernuclei ((Formula presented) and (Formula presented)) are shown, w

A search for pair production of vector-like leptons coupling to first- and second-generation Standard Model leptons is presented. The search is based on a dataset of proton-proton collisions at s = 13 TeV recorded with the ATLAS detector during Run 2 of the Large Hadron Collider, corresponding to an integrated luminosity of 140 fb−1. Events are categorised depending on the flavour and multiplicity

The Lund jet plane (LJP) is measured for the first time in tt¯ events, using 140 fb-1 of s=13 TeV pp collision data collected with the ATLAS detector at the LHC. The LJP is a two-dimensional observable of the sub-structure of hadronic jets that acts as a proxy for the kinematics of parton showers and hadron formation. The observable is constructed from charged particles and is measured for R=1.0 a

In high-energy and astroparticle physics, event generators have an essential role, even in the simplest data analyses. Physical processes occurring in hadronic collisions are simulated within a Monte Carlo framework but a major challenge remains modelling of hadron dynamics at low momentum transfer, which includes the initial and final phases of every hadronic collision. Phenomenological models in

In this paper we review the physics opportunities at linear e+e− colliders with a special focus on high centre-of-mass energies and beam polarisation, take a fresh look at the various accelerator technologies available or under development and, for the first time, discuss how a facility first equipped with a technology that is mature today could be upgraded with technologies of tomorrow to reach m

As the use of engineered nanomaterials increases, so does the risk of them spreading to natural ecosystems. Hitherto, knowledge regarding the toxic properties of nanoparticles (NP’s) and their potential interactions with natural bio-organic molecules adsorbed to them, and thereby forming surface coronas, is limited. However, we show here that the toxic effect of NPs of tungsten carbide cobalt (WC–

Kortvariga intensiva regn med varaktighet upp till en timme åren 1980–2007 från nederbördsmätare i Malmöhar analyserats för att finna intensiteter med lång återkomsttid. Oberoende observationer för olika stationer harsammanförts till en serie till vilken sannolikhetsfördelningar anpassats. Korttidsregnmätningars tillförlitlighetdiskuteras. De extrema händelserna har behandlats individuellt. För atShort-term intensive storms of duration up to an hour the years 1980–2007 from rain gauges in Malmö havebeen analyzed to find intensities of long return periods. Non-dependent observations from different stationshave been combined into a series to which probability functions have been adjusted. The extreme events havebeen investigated individually. The reliability of rain measurements is discussed

The concept of expansion has since the inception of the European union been a detrimental part of its institutions. After several waves of expansion, the union has been deemed to be in a state of enlargement fatigue. This study examines the European Council-s expressed ideas regarding the EU´s prospective enlargement. Employing a two-tiered qualitative idea analysis – descriptive and explanatory –

I en tid av ökande globala utmaningar är organisationer inte längre passiva åskådare till externa kriser, utan använder dem som strategiska möjligheter för positionering. Genom att avvika från traditionella kristeorier som fokuserar på interna händelser där företag är direkt involverade eller bär ansvar, undersöker denna studie hur externa kriser utnyttjas när företagens direkta inblandning är minIn an era of increasing global disruption, organizations are no longer passive observers of external crises but utilize them as strategic positioning opportunities. Departing from traditional crisis theories focused on internal incidents where companies are directly involved or bear responsibility, this study investigates the leverage of external crises where companies’ direct involvement is minim

This thesis examines the extent to which EU directives on information and consultation enable employees, through employees’ representatives, to influence employer decision-making before final decisions are adopted, particularly in situations involving restructuring and collective redundancies. The analysis focuses on four central directives within the EU framework: the Information and Consultation

When Europe speaks of security, it speaks of itself. The increased security threats posed by Russia’s invasion of Ukraine and American protectionism has changed the geopolitical context of the European Union, which seems to have increased EU officials’ emphasis on a European identity in political speeches. Consequently, this thesis sought to investigate the link between security threats and Europe