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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
Measurements are presented of inclusive charm and beauty cross sections in e(+)p collisions at HERA for values of photon virtuality 12 <= Q(2) = 60 GeV2 and of the Bjorken scaling variable 0.0002 <= x <= 0.005. The fractions of events containing charm and beauty quarks are determined using a method based on the impact parameter, in the transverse plane, of tracks to the primary vertex, as measured
A search for excited electron (e*) production is described in which the electroweak decays e* --> egamma, e* --> eZ and e* ---> nuW are considered. The data used correspond to an integrated luminosity of 120 pb(-1) taken in e(+/-)p collisions from 1994 to 2000 with the H1 detector at HERA at centre-of-mass energies of 300 and 318 GeV. No evidence for a signal is found. Mass dependent exclusion lim
A model-independent search for deviations from the Standard Model prediction is performed in e(+) p and e(-) p collisions at HERA using H1 data corresponding to an integrated luminosity of 117 pb(-1). For the first time all event topologies involving isolated electrons, photons, muons, neutrinos and jets with high transverse momenta are investigated in a single analysis. Events are assigned to exc
A measurement of charm and beauty photoproduction at the electron proton collider HERA is presented based on the simultaneous detection of a D*(+/-) meson and a muon. The correlation between the D* meson and the muon serves to separate the charm and beauty contributions and the analysis provides comparable sensitivity to both. The total and differential experimental cross sections are compared to
The production fractions of charged and neutral b-hadrons in b-quark events from Z(0) decays have been measured with the DELPHI detector at LEP. An algorithm has been developed, based on a neural network, to estimate the charge of the weakly-decaying b-hadron by distinguishing its decay products from particles produced at the primary vertex. From the data taken in the years 1994 and 1995, the frac
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
Measurements are reported of the production of dijet events with a leading neutron in ep interactions at HERA. Differential cross sections for photoproduction and deep inelastic scattering are presented as a function of several kinematic variables. Leading order QCD simulation programs are compared with the measurements. Models in which the real or virtual photon interacts with a parton of an exch
The proton structure function F-2(x, Q(2)) is measured in inelastic QED Compton scattering using data collected with the H1 detector at HERA. QED Compton events are used to access the kinematic range of very low virtualities of the exchanged photon, Q(2), down to 0.5 GeV2, and Bjorken x up to similar to 0.06, a region which has not been covered previously by inclusive measurements at HERA. The res
A search for scalar top quarks in R-parity violating supersymmetry is performed in e(+)p collisions at HERA using the H1 detector. The data, taken at roots = 319 GeV and 301 GeV, correspond to an integrated luminosity of 106 pb(-1). The resonant production of scalar top quarks t in positron quark fusion via an R-parity violating Yukawa coupling lambda' is considered with the subsequent bosonic sto
The cross section for anti-deuteron photoproduction is measured at HERA at a mean centre-of-mass energy of W-gammap=200 GeV in the range 0.2 < p(T)/M < 0.7 and y < 0.4, where M, p(T) and y are the mass, transverse momentum and rapidity of the anti-deuteron in the HERA laboratory frame, respectively. The numbers of anti-deuterons per event are found to be similar in photoproduction to those in cent
Inclusive production cross sections are measured in deep inelastic scattering at HERA for meson states composed of a charm quark and a light antiquark or the charge conjugate. The measurements cover the kinematic region of photon virtuality 2 < Q(2) < 100 GeV2, inelasticity 0.05 < y < 0.7, D meson transverse momenta p(t)( D) greater than or equal to 2.5 GeV and pseudorapidity |eta( D)| less than o
Room Temperature Ionic Liquids (RTILs) are organic salts that melt below 100 degrees Celsius. The advantages of RTILs, such as high ionic concentrations and low melting points, promote several potential applications. For instance, RTILs could be utilized in manufacturing energy storage devices, and as efficient solvents. In this work, an Asymmetric Restricted Primitive Model (ARPM) of electrolytRoom Temperature Ionic Liquids (RTILs) are organic salts that melt below 100 degrees Celsius. The advantages of RTILs, such as high ionic concentrations and low melting points, promote several potential applications. For instance, RTILs could be utilized in manufacturing energy storage devices, and as efficient solvents. In this work, an Asymmetric Restricted Primitive Model (ARPM) of electrolyt
Bergkross är det främsta materialet för uppbyggnad av vägar idag. Det är ett jungfruligt material som bara ökar i produktion för användning i anläggningssektorn. För att minska användningen och i förlängningen också produktionen av jungfruliga material undersöks mer sekundära ballastmaterial som exempelvis slaggrus för att nå ett cirkulärt flöde. Slaggrus har undersökts utifrån olika aspekter meCrushed stone is the main material for building roads today. It is a virgin material that is only increasing in production for use in the construction sector. To reduce the use of virgin materials, and with it the production, more secondary aggregate materials such as Municipal solid waste incinerated (MSWI) bottom ash are being investigated to achieve a circular flow. MSWI bottom ash has been in
Inom fältet kommunikation sker en ständig diskussion kring hur sociala medier bör hanteras. Det finns brist på empiri som stödjer löften om dess kommunikativa möjligheter för företag. Arbetet lyfter diskussionen kring sociala medier och sätter dem i förbindelse med en holistisk syn på organisation och kommunikation. Syftet är att belysa organisationskulturens betydelse för relationsskapande kommun
En kvalitativ studie av ett integrationsprojekt i Malmö våren 2007 där musik användes som medel i integrationsprocessen. Projektet kallades Möten – musik – mångfald och genomfördes av organisationen Spiritus Mundi i samarbete med fyra olika stadsdelar i Malmö. Studien utvärderar projektet med fokus på de inblandade pedagogernas och Spiritus Mundis erfarenheter av projektet samt musikens roll för pThis paper evaluates a project of integration that took place in the Spring of 2007 in Malmö, Sweden. In the project music was used as a tool in the process of integration. The project was named "Meetings – music – multitude" and behind it stood the organisation Spiritus Mundi which cooperated with four different parts of Malmö. The study evaluates the project focusing on the experiences
Sammanfattning Den här uppsatsen handlar om bestämmelsen i 5 kap. 5 § Patientdatalagen (2008:355), PDL, som möjliggör för patienten att läsa sin journal via internet. Uppsatsen handlar även om journalens rättsliga status och ramverk, samt om patientens rätt att ta del av sin journal. Det övergripande syftet med uppsatsen är att undersöka hur datoriseringen av hälso- och sjukvården och dess möjligSummary This essay examines the rule in the Swedish Patient Data Act (Patientdatalagen), which says that it is possible to give the patient access to his/her medical record via the Internet. The aim with the essay is to examine whether the computerization of health care in Sweden has had any impact on the patient’s right to information about his/her medical status. By examining this, the essay an
