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The NA62 experiment at CERN reports searches for K+→μ+N and K+→μ+νX decays, where N and X are massive invisible particles, using the 2016–2018 data set. The N particle is assumed to be a heavy neutral lepton, and the results are expressed as upper limits of O(10−8) of the neutrino mixing parameter |Uμ4|2 for N masses in the range 200–384 MeV/c2 and lifetime exceeding 50 ns. The X particle is consi
We present ICARUS, a versatile graphical search tool to query dependency treebanks. Search results can be inspected both quantitatively and qualitatively bymeans of frequency lists, tables, or dependency graphs. ICARUS also ships with plugins that enable it to interface with tool chains running either locally or remotely.
The goal of person text-image matching is to retrieve images of specific pedestrians using natural language. Although a lot of research results have been achieved in persona text-image matching, existing methods still face two challenges. First,due to the ambiguous semantic information in the features, aligning the textual features with their corresponding image features is always tricky. Second,
A search for the lepton flavour violating processes ep→μX and ep→τX is performed with the H1 experiment at HERA. Final states with a muon or tau and a hadronic jet are searched for in a data sample corresponding to an integrated luminosity of 66.5 pb-1 for e+p collisions and 13.7 pb-1 for e-p collisions at a centre-of-mass energy of 319 GeV. No evidence for lepton flavour violation is found. Limit
A search for contributions to the reaction ep --> epi(0)N* from photon-odderon fusion in the photoproduction regime at HERA is reported, at an average photon-proton centre-of-mass energy
A search for squarks in R-parity violating supersymmetry is performed in e(+/-)p collisions at HERA using the H1 detector. The data were taken at a centre-of-mass energy of 319 GeV and correspond to an integrated luminosity of 64.3 pb(-1) for e (+) p collisions and 13.5 pb(-1) for e(-)p collisions. The resonant production of squarks via a Yukawa coupling lambda' is considered, taking into account
We present the results of a weakly modeled burst search for gravitational waves from mergers of nonspinning intermediate mass black holes in the total mass range 100-450 M-circle dot and with the component mass ratios between 1: and 4:1. The search was conducted on data collected by the LIGO and Virgo detectors between November of 2005 and October of 2007. No plausible signals were observed by the
In a search for β-delayed charged particles from 14Be we have obtained an upper limit on β-delayed greek small letter alpha particles, B(βgreek small letter alpha)<1.2×10−4, and found evidence for β-delayed tritons at intensity of 6×10−5
Signals of QCD instanton-induced processes are searched for in deep-inelastic scattering (DIS) at the electron-proton collider HERA in a kinematic region defined by the Bjorken-scaling variables x > 10(-3), 0.1 < y < 0.6 and photon virtualities 10 less than or similar to Q(2) < 100 GeV2. Several observables characterising hadronic final state properties of QCD instanton-induced events are exploite
Popular Abstract in Swedish Typ 2 diabetes (även kallat sockersjuka eller åldersdiabetes) är en av våra vanligaste förekommande folksjukdomar och ungefär 5% av alla människor beräknas ha sjukdomen. Typ 2 diabetes karakteriseras av kroniskt förhöjda blodsocker-nivåer som orsakas dels av en oförmåga hos insulin att befrämja blodsockerupptag i dess målvävnader, fett och muskel, och dels av en oförmågType 2 diabetes mellitus is a multifactorial disorder characterized by chronic hyperglycemia resulting from pancreatic dysfunction and insulin resistance. It is a common disorder with a complex pattern of inheritance, likely to reflect the influence of multiple genetic and environmental factors on the diabetes risk. The aim of thesis was to identify genetic risk factors for type 2 diabetes. In a g
Multiple myeloma (MM) is a disease of immunoglobulin producing plasma cells which reside mainly in the bone marrow. Family members of MM patients are at a risk of MM but whether other malignancies are in excess in family members is not established and is the aim of this study. MM patients (24,137) were identified from the Swedish Cancer Registry from years 1958-2012. Relative risks (RRs) were calc
A search for first generation scalar and vector leptoquarks produced in ep collisions is performed by the H1 experiment at HERA. The full H1 data sample is used in the analysis, corresponding to an integrated luminosity of 446 pb(-1). No evidence for the production of leptoquarks is observed in final states with a large transverse momentum electron or with large missing transverse momentum, and co
Pictures and other iconic media are used extensively in psychological experiments on nonhuman primate perception, categorisation, etc. They are also used in everyday interaction with primates, and as pure entertainment. But in what ways do primates understand iconic artefacts? What implications do these different ways have for the conclusions we can draw from those studies on perception and catego
The recent upgrade of the Large Hadron Collider (LHC) benefits searches for new physics phenomena using multijet final states. The increased center-of-mass energy opens new possibilities to probe new physics at scales beyond the Tera-electron volt (TeV), especially in di-jet final states. However, in the sub-TeV mass region, the QCD background to dijet searches is overwhelming and not all events c
At the Children’s Heart Center of Skåne University Hospital (BUS) there is an ongoing project with live recordings of open heart surgeries. These recordings will be used for educational purposes, for planning of future surgeries, as well as for evaluating the surgical procedures. Currently, the recordings are made using two cameras that are positioned above the operating table on a temporary mount
