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A calibration of the ATLAS flavour-tagging algorithms using a new calibration procedure based on optimal transportation maps is presented. Simultaneous, continuous corrections to the b-jet, c-jet, and light-flavour jet classification probabilities from jet-tagging algorithms in simulation are derived for b-jets using tt¯→eμννbb data. After application of the derived calibration maps, closure betwe
This article reports on a search for dijet resonances using 132 fb−1 of pp collision data recorded at (Formula presented) ¼ 13 TeV by the ATLAS detector at the Large Hadron Collider. The search is performed solely on jets reconstructed within the ATLAS trigger to overcome bandwidth limitations imposed on conventional single-jet triggers, which would otherwise reject data from decays of sub-TeV dij
Higgs boson production cross-sections via gluon–gluon fusion and vector-boson fusion in proton–proton collisions are measured in the H→WW∗→ℓνℓν decay channel. The Large Hadron Collider delivered proton–proton collisions at a centre-of-mass energy of 13TeV between 2015 and 2018, which were recorded by the ATLAS detector, corresponding to an integrated luminosity of 140fb-1. The total cross-sections
A search for single production of a vector-like quark Q, which could be either a singlet T, with charge 23, or a Y from a (T, B, Y) triplet, with charge −43, is performed using data from proton-proton collisions at a centre-of-mass energy of 13 TeV. The data correspond to the full integrated luminosity of 140 fb−1 recorded with the ATLAS detector during Run 2 of the Large Hadron Collider. The anal
A measurement of off-shell Higgs boson production is performed in the H * → WW channel. The measurement uses a proton–proton collision dataset with an integrated luminosity of 140 fb−1 collected at a centre-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. Final states in which both W bosons decay leptonically are targeted, and events are categorised based on the flavour
A search for exotic decays of the Higgs boson H into new scalar or pseudoscalar particles that subsequently decay into b-quarks is presented. The search considers ZH production with several decay scenarios for the Higgs boson; first to a pair of identical scalars, H → 2a → 4b, second to a pair of scalars with different masses (ma1 < ma2), either directly, H → a1a2 → 4b, or via a longer decay chain
A search for the dimuon decay of the Higgs boson is presented based on pp collision data recorded by ATLAS during Run 3 of the Large Hadron Collider, corresponding to an integrated luminosity of 165 fb-1 at √s = 13.6 TeV. To enhance the sensitivity, the results are combined with those from Run 2. An excess of events over the background is observed with a significance of 3.4σ (2.5σ expected). The b
Measurements of integrated and differential cross-sections for W±Z production in proton-proton collisions are presented. The data collected by the ATLAS detector at the Large Hadron Collider from 2015 to 2018 at a centre-of-mass energy of s=13 TeV are used, corresponding to an integrated luminosity of 140 fb−1. The W±Z candidate events are reconstructed using leptonic decay modes of the gauge boso
Jet flavour tagging enables the identification of jets originating from heavy-flavour quarks in proton–proton collisions at the Large Hadron Collider, playing a critical role in its physics programmes. This paper presents GN2, a transformer-based flavour tagging algorithm deployed by the ATLAS Collaboration that represents a different methodology compared to previous approaches. Designed to classi
A search for R-parity-conserving supersymmetry in events with large missing transverse momentum, jets and at least one hadronically decaying τ-lepton is presented. Both gluino and squark pair production are considered, with the cascade decay of each gluino or squark producing either a τ-slepton or a τ-sneutrino. Three channels are examined, requiring either exactly one hadronically decaying τ-lept
Recognizing the novel ways in which queer and feminist struggles for change unfold today, Spaces, Bodies, Revolts: Emerging Digital Cultures, Feminist Struggles, and Global Change explores contemporary protest movements and the ambivalent nature of digital cultures carrying them forward. While feminist and LGBTI+ struggles for rights, livability, dignity and safety have always existed, what is new
Context. The nuclear stellar disc (NSD) of the Milky Way is a dense, rotating stellar system in the central ~200 pc. The NSD is thought to be primarily fuelled by bar-driven gas inflows from the inner Galactic disc. Aims. As part of the LEGARE project, we aim to construct the first chemical-evolution models for the NSD using a Bayesian approach tailored to reproducing the observed metallicity-dist
The development of an N-body/hydrodynamic ‘surrogate’ model of the Milky Way (MW) – a model that resembles the MW in several key aspects after many Gyrs of evolution – would be extremely beneficial for Galactic Archaeology. Here, we present four new ‘surrogate’ models, all built with the nexus framework. The simulations contain stars, dark matter and gas. Our most sophisticated model allows gas to
Intraspecific variation in phenotypic plasticity can affect the ability of populations, and thus species, to respond to environmental changes. However, the prevalence and drivers of such variation are not well known. Most proposed explanations for intraspecific variation in phenotypic plasticity involve mechanisms associated with a population's position within the species' geographic range or the
Inclination-dependent grain boundary (GB) energy and shear-coupled motion are studied for [001] and [111] tilt GBs in face-centered cubic materials using three-dimensional (3D) phase field crystal (PFC) simulations. A large dataset spanning misorientation and inclination space is systematically generated to evaluate trends in GB energy and shear-coupling. GB energy variations broadly follow ideal
Based on a conceptualization of heteroactivism as a transnational phenomenon manifesting in local contexts to spread and express resistance to gender and sexual rights, this article aims to illuminate new dimensions of heteroactivism beyond a sole focus on gender and sexuality by bringing its specificities in the Swedish context to the fore. Drawing on digital ethnography with members of the neo-c
Interdisciplinary in perspective, this book explores contemporary struggles around ‘identity politics’ in Europe, offering a unique glimpse into contemporary tensions and paradoxes surrounding identities, belonging, exclusions and their deep-seated gendered, colonial and racist legacies. With a particular focus on the Nordic region, it provides insights into the ways in which people who find thems
The nation-state level of formal, parliamentary politics is an increasing polarisation with contradistinctions appearing in the ‘traditional’ Left, Progressive, and Conservative politics. Adherent is an increasing politicisation of gender, race, sexuality, and nation connected to citizenship, resources, and identification. By insisting on making visible the epistemologies of colonial knowledge reg
