425 research outputs found
Baryogenesis and dark matter in the nMSSM
No full textBalazs, Csaba. (2012). Baryogenesis and dark matter in the nMSSM. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/129702
Investigating the electroweak phase transition with a real scalar singlet at a muon collider
No full textA strong first-order electroweak phase transition (SFOEWPT) is essential for explaining baryogenesis and for potentially generating observable gravitational waves. This study investigates the potential of a high-energy muon collider to examine the occurrence of SFOEWPT within the context of a Standard Model extended by a real scalar singlet (xSM). We analyzed all possible decay modes of the singlet to constrain the valid parameter space of SFOEWPT, which was extracted numerically at different renormalization scales to account for theoretical uncertainties, thereby determining the sensitivity of a muon collider to the production and decay channels of novel heavy scalar particles that emerge in the xSM. The findings demonstrate that a 3 TeV muon collider can directly examine the nature of electroweak symmetry breaking by efficiently detecting novel scalar particles associated with a first-order electroweak phase transition through jet-rich final states, thus complementing the indirect constraints from gravitational wave experiments
Internationalization of a health care mobile application : Case study of Onerva Hoivaviestintä Oy
No full textCompanies have been trying to increase their footprint and target a bigger market share, by internationalising. It has been a global trend not just among corporations but also on the level of society.
The following research paper is a case study for Onerva Hoivaviestintä Oy, which is a start-up company. The company connects family members of elderly and the care providers. Due to COVID-19 pandemic it is harder for relatives to see their elderly family members, therefore applications like Onerva is demanded. To gain new opportunities and to expand their business they are obligated to internationalise and target foreign markets. Prior to new market entry it is recommended to analyse potential market areas, as it lowers the risk and shows which countries could bring higher and stable profit.
This research was pursued to compare Denmark’s, Sweden’s and Germany’s market suitability for a new instant-messaging application targeted for elderly care. The market study was completed by analysing macroenvironment and microenvironment factors in the chosen countries. The researcher put macroenvironmental factors in focus for the literature review chapter, since the application concept is innovative and there has not been any similar data collected in this topic.
The nature of the research is exploratory. The author selected mixed methods approach to support the theory. Firstly, numerical secondary data was collected from other researchers, then with the interviews, the author proved with primary qualitative data the hypothesis. The interviews were carried out with three elderly home workers from Denmark, Germany and Sweden. The interviews were semi structured, as the author wanted to have a deep understanding of the country’s elderly health care system.
Comparing all the secondary and primary data, the researcher concluded that due to the technological advancement and number of potential users. The most reasonable market for Onerva Hoi-vaviestintä company, to expand their business first is Sweden
Bayesian analysis and naturalness of (next-to-)minimal supersymmetric models
No full textThe Higgs boson discovery stirred interest in next-to-minimal supersymmetric models, due to the apparent fine-tuning required to accommodate it in minimal theories. To assess their naturalness, we compare fine-tuning in a Z₃ conserving semi-constrained Next-to-Minimal Supersymmetric Standard Model (NMSSM) to the constrained MSSM (CMSSM). We contrast popular fine-tuning measures with naturalness priors, which automatically appear in statistical measures of the plausibility that a given model reproduces the weak scale. Our comparison shows that naturalness priors provide valuable insight into the hierarchy problem and rigorously ground naturalness in Bayesian statistics. For the CMSSM and semi-constrained NMSSM we demonstrate qualitative agreement between naturalness priors and popular ne tuning measures. Thus, we give a clear plausibility argument that favours relatively light superpartners.Peter Athron, Csaba Balazs, Benjamin Farmer, Andrew Fowlie, Dylan Harries and Doyoun Ki
Updated Reach of the CERN LHC and Constraints from Relic Density, and in the mSUGRA Model
No full textWe present an updated assessment of the reach of the CERN LHC pp collider for supersymmetric matter in the context of the minimal supergravity (mSUGRA) model. In addition to previously examined channels, we also include signals with an isolated photon or with a leptonically decaying Z boson. For an integrated luminosity of 100 fb-1, values of m_{1/2}\sim 1400 GeV can be probed for small m_0, corresponding to a gluino mass of m_{\tg}\sim 3 TeV. For large m_0, in the hyperbolic branch/focus point region, m_{1/2}\sim 700 GeV can be probed, corresponding to m_{\tg}\sim 1800 GeV. We also map out parameter space regions preferred by the measured values of the dark matter relic density, the b\to s\gamma decay rate, and the muon anomalous magnetic moment a_\mu, and discuss how SUSY might reveal itself in these regions
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