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PYBBWH: A program for associated charged Higgs and W boson production
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Fysiska sektionen, Institutionen för fysik och astronomi, Kärn- och partikelfysik.
(engelsk)Manuskript (Annet vitenskapelig)
Abstract [en]

 

The Monte Carlo program, PYBBWH, is an implementation of the associated production of a charged Higgs and a W boson from fusion in a general Two-Higgs-Doublet model for both CP-conserving and CP-violating couplings.It is implemented as a external process to Pythia 6.The code can be downloaded from http://www.isv.uu.se/thep/MC/pybbwh.

Identifikatorer
URN: urn:nbn:se:uu:diva-98099OAI: oai:DiVA.org:uu-98099DiVA, id: diva2:173281
Tilgjengelig fra: 2009-02-25 Laget: 2009-02-11 Sist oppdatert: 2010-01-14bibliografisk kontrollert
Inngår i avhandling
1. Phenomenology of Charged Higgs Bosons and B-meson Decays
Åpne denne publikasjonen i ny fane eller vindu >>Phenomenology of Charged Higgs Bosons and B-meson Decays
2009 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

For more than 30 years the Standard Model has been the theoretical foundation for particle physics. The theory has been verified successfully by experimental tests. Its biggest shortcoming is the non-discovery of the Higgs boson,responsible for giving the other particles masses. Despite its success there are hints that the Standard Model is not the complete theory and many extensions of it, such as supersymmetry, have been proposed.

Extended theories often predict the existence of a charged Higgs boson and its detection will be a clear sign of physics beyond the Standard Model. The main focus in this thesis is on various phenomenological aspects of the charged Higgs boson. For favorable mass and couplings direct detection is shown to be possible at the Large Hadron Collider in production with an associated W boson. It is also shown how a light charged Higgs can have measurable effects on spin correlations in decays of pair-produced top quarks. The charged Higgs boson can also be seen indirectly, in for example B-meson decays, which can be used to put constraints on its mass and fermion couplings. Exclusion limits in two supersymmetric models are given together with a comparison with the discovery potentials for the LHC experiments. A tool for calculating properties, such as masses and decays, of both charged and neutral Higgs bosons in the Two-Higgs-Doublet Model is also presented.

B-meson decays can also be used to test aspects of the strong interaction. Part of this thesis deals with improving and applying phenomenological models to B-meson decays. Although these models are not derived from first principles, their success shows that they capture important features of non-perturbative strong interactions.

sted, utgiver, år, opplag, sider
Uppsala: Acta Universitatis Upsaliensis, 2009. s. 40
Serie
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, ISSN 1651-6214 ; 606
Emneord
Supersymmetry, Beyond Standard Model, B-Physics, Charged Higgs Boson, LHC, QCD, Spin Correlations, CMSSM, NUHM
HSV kategori
Identifikatorer
urn:nbn:se:uu:diva-9564 (URN)978-91-554-7422-5 (ISBN)
Disputas
2009-03-20, Siegbahnsalen, Ånsgströmslaboratoriet, Lägerhyddsvägen 1, Uppsala, 13:15 (engelsk)
Opponent
Veileder
Tilgjengelig fra: 2009-02-24 Laget: 2009-02-11 Sist oppdatert: 2010-12-09bibliografisk kontrollert

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