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Professor Contact details Email: ulf [dot] soderlund [at] mgeo [dot] lu [dot] se Phone: +734012789 Mobile: +734012789Organisation Department of Earth and Environmental Sciences (MGeo) Visiting address: Sölvegatan 12, Lund Room number: 507 Service point: 16 WebpageUlf Söderlunds profile in Lund University research portalTogether with scientists from Canada I coordinate an international project call
https://www.geology.lu.se/ulf-soderlund - 2026-09-13
Proton–proton collision data recorded by the ATLAS detector in 2011, at a centre-of-mass energy of 7 TeV, have been used for an improved determination of the W-boson mass and a first measurement of the W-boson width at the LHC. Recent fits to the proton parton distribution functions are incorporated in the measurement procedure and an improved statistical method is used to increase the measurement
A search is presented for new particles produced in proton-proton collisions at a centre-of-mass energy of 13 TeV that result in final states comprising a massive vector (W or Z) boson that decays hadronically and large missing transverse momentum. The data sample was collected with the ATLAS experiment at the Large Hadron Collider from 2015 to 2018 and corresponds to an integrated luminosity of 1
This article aims to provide an in-depth understanding of the reasoning behind the current US right-wing movement’s articulated politics of search engines.The aim is pursued through the prism of metapolitics, understood as a culture war focused on formulating and establishing dominant societal norms and values. Methodologically, the study uses qualitative content analysis to examine how Google Sea
The two-particle momentum correlation functions between charm mesons (D∗± and D±) and charged light-flavor mesons (π± and K±) in all charge combinations are measured for the first time by the ALICE Collaboration in high-multiplicity proton-proton collisions at a center-of-mass energy of s=13 TeV. For DK and D∗K pairs, the experimental results are in agreement with theoretical predictions of the re
Stormwater management is essential for preventing urban flooding and protecting water quality in receiving bodies. Traditionally viewed as a nuisance, stormwater is now being re-evaluated as an alternative resource for non-potable uses such as toilet flushing and irrigation through rainwater harvesting systems (RWHS). Within the European Union's Horizon 2020 project REWAISE, pilot studies with cer
Background: The potential of generative artificial intelligence (genAI) tools, such as ChatGPT, is being increasingly explored in healthcare settings. However, the same tools also introduce significant cybersecurity risks that could compromise patient safety, data integrity, and institutional trust. This study aimed to examine real-world security breaches involving genAI and extrapolate their pote
The ratio of branching ratios of the W boson to muons and electrons, RWμ/e=B(W→μν)/B(W→eν), has been measured using 140fb-1 of pp collision data at s=13 TeV collected with the ATLAS detector at the LHC, probing the universality of lepton couplings. The ratio is obtained from measurements of the tt¯ production cross-section in the ee, eμ and μμ dilepton final states. To reduce systematic uncertaint
A search for a hypothetical heavy scalar particle, X, decaying into a singlet scalar particle, S, and a Standard Model Higgs boson, H, using 140 fb−1 of proton-proton collision data at the centre-of-mass energy of 13 TeV recorded with the ATLAS detector at the LHC is presented. The explored mass range is 300 ≤ mX ≤ 1000 GeV and 170 ≤ mS ≤ 500 GeV. The signature of this search is one or two leptons
This report reviews the published results of searches for possible additional scalar particles and exotic decays of the Higgs boson performed by the ATLAS Collaboration using up to 140 fb−1 of 13 TeV proton–proton collision data collected during Run 2 of the Large Hadron Collider. Key results are examined, and observed excesses, while never statistically compelling, are noted. Constraints are plac
This Letter presents a differential cross-section measurement of Lund subjet multiplicities, suitable for testing current and future parton shower Monte Carlo algorithms. This measurement is made in dijet events in 140 fb−1 of s=13 TeV proton–proton collision data collected with the ATLAS detector at CERN's Large Hadron Collider. The data are unfolded to account for acceptance and detector-related
In the present work, we addressed the relationship between parental leave policies and social norms. Using a pre-registered, cross-national approach, we examined the relationship between parental leave policies and the perception of social norms for the gender division of childcare. In this study, 19,259 students (11,924 women) from 48 countries indicated the degree to which they believe childcare
This paper presents a search for a new Z′ resonance decaying into a pair of dark quarks which hadronise into dark hadrons before promptly decaying back as Standard Model particles. This analysis is based on proton-proton collision data recorded at s = 13 TeV with the ATLAS detector at the Large Hadron Collider between 2015 and 2018, corresponding to an integrated luminosity of 139 fb−1. After sele
Research aimThis paper examines place brand communication in marginalised urban areascharacterised by low levels of attractiveness to residents, visitors and investment. Most previous research on marginalised places has focused on issues such as crime prevention and securitydevelopment, rather than on branding and attractiveness. The aim of this research is to explore the roleof place branding eff
High-energy nuclear collisions create a quark-gluon plasma, whose initial condition and subsequent expansion vary from event to event, impacting the distribution of the eventwise average transverse momentum [(Formula presented)]. Disentangling the contributions from fluctuations in the nuclear overlap size (geometrical component) and other sources at a fixed size (intrinsic component) remains a ch
The peacekeeping mission in the Democratic Republic of Congo (DRC) is one of the most extensive and complex missions ever carried out by the United Nations. Amongst the operational adaptation, one challenge has remained consistent; the crisis of Sexual Exploitation and Abuse (SEA) committed by UN peacekeepers against the very civilians they are mandated to protect. This essay aims to explain how t
This essay examines Russia’s nuclear rhetoric in relation to the war in Ukraine, with a focus on the strategic and normative dimensions of deterrence and the nuclear taboo. By using Thomas C. Schelling’s theories of deterrence and signaling and Nina Tannenwald’s theory of the nuclear weapons taboo, the study analyze how Russia’s rhetoric and actions relate to the theories in question. The study us
This study aims to investigate how girls within SiS special residential homes for youths are constructed in Swedish news media. The study is based on the social constructivist perspective and Yvonne Hirdman's gender theory. The theory choices have been made to make visible how words in news media construct both gender and the overall image of girls within SiS special residential homes for yout
