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Charged Higgs Phenomenology Of The Lepton Specific And Flipped Two Higgs Doublet Models
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Book Synopsis Charged Higgs Phenomenology of the Lepton-Specific and Flipped Two Higgs Doublet Models by : Deanna MacLennan
Download or read book Charged Higgs Phenomenology of the Lepton-Specific and Flipped Two Higgs Doublet Models written by Deanna MacLennan and published by . This book was released on 2009 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Implications of the LHC Two-photon Signal for Two-Higgs-doublet Models by :
Download or read book Implications of the LHC Two-photon Signal for Two-Higgs-doublet Models written by and published by . This book was released on 2012 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: We study the implications for Two Higgs Doublet Models of the recent announcement at the LHC giving a tantalizing hint for a Higgs boson of mass 125 GeV decaying into two photons. We require that the experimental result be within a factor of two of the theoretical Standard Model prediction, and analyze the type I and type II models as well as the lepton-specific and flipped models, subject to this requirement. It is assumed that there is no new physics other than two Higgs doublets. In all of the models, we display the allowed region of parameter space taking the recent LHC announcement at face value, and we analyze the WW−, ZZ, {bar b}b and?+?− expectations in these allowed regions. Throughout the entire range of parameter space allowed by the?? constraint, the number of events for Higgs decays into WW, ZZ and b{bar b} are not changed from the Standard Model by more than a factor of two. In contrast, in the Lepton Specific model, decays to?+?− are very sensitive across the entire??-allowed region.
Book Synopsis Phenomenology of the Basis-independent CP-violating Two-Higgs Doublet Model by : Deva A. O'Neil
Download or read book Phenomenology of the Basis-independent CP-violating Two-Higgs Doublet Model written by Deva A. O'Neil and published by . This book was released on 2009 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Higgs Hunter's Guide by : John F. Gunion
Download or read book The Higgs Hunter's Guide written by John F. Gunion and published by CRC Press. This book was released on 2018-03-05 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Higgs Hunter's Guide is a definitive and comprehensive guide to the physics of Higgs bosons. In particular, it discusses the extended Higgs sectors required by those recent theoretical approaches that go beyond the Standard Model, including supersymmetry and superstring-inspired models.
Download or read book B Decays written by Sheldon Stone and published by World Scientific. This book was released on 1994 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 2nd edition is an extensive update of "B Decays?. The revisions are necessary because of the extensive amount of new data and new theoretical ideas. This book reviews what is known about b-quark decays and also looks at what can be learned in the future.The importance of this research area is increasing, as evidenced by the approval of the luminosity upgrade for CESR and the asymmetric B factories at SLAC and KEK, and the possibility of experiments at hadron colliders.The key experimental observations made thus far, measurement of the lifetimes of the different B species, B0-B0 mixing, the discovery of ?Penguin? mediated decays, and the extraction of the CKM matrix elements Vub and Vcb from semileptonic decays, as well as more mundane results, are described in great detail by the experimentalists who have been closely involved with making the measurements. Theoretical progress in understanding b-quark decays using HQET and lattice gauge techniques are described by theorists who have developed and used these techniques.Synthesizing the experimental and theoretical information, several articles discuss the implications for the ?Standard Model? and how further tests can be done using measurements of CP violation in the B system.
Book Synopsis Higgs Boson Phenomenology in the Type II Two Higgs Doublet Model (2HDM) by : Eric Gyabeng Fuakye
Download or read book Higgs Boson Phenomenology in the Type II Two Higgs Doublet Model (2HDM) written by Eric Gyabeng Fuakye and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theory and Phenomenology of Two-Higgs-doublet Models by : Gustavo Castelo Branco
Download or read book Theory and Phenomenology of Two-Higgs-doublet Models written by Gustavo Castelo Branco and published by . This book was released on 2012 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Phenomenology of Two-Higgs-doublet Models in the LHC Era by : Universitat de València. Facultat de Física
Download or read book Phenomenology of Two-Higgs-doublet Models in the LHC Era written by Universitat de València. Facultat de Física and published by . This book was released on 2014 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Lectures on LHC Physics by : Tilman Plehn
Download or read book Lectures on LHC Physics written by Tilman Plehn and published by Springer. This book was released on 2014-08-05 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the discovery of the Higgs boson, the LHC experiments have closed the most important gap in our understanding of fundamental interactions, confirming that such interactions between elementary particles can be described by quantum field theory, more specifically by a renormalizable gauge theory. This theory is a priori valid for arbitrarily high energy scales and does not require an ultraviolet completion. Yet, when trying to apply the concrete knowledge of quantum field theory to actual LHC physics - in particular to the Higgs sector and certain regimes of QCD - one inevitably encounters an intricate maze of phenomenological know-how, common lore and other, often historically developed intuitions about what works and what doesn’t. These lectures cover three aspects to help understand LHC results in the Higgs sector and in searches for physics beyond the Standard Model: they discuss the many facets of Higgs physics, which is at the core of this significantly expanded second edition; then QCD, to the degree relevant for LHC measurements; as well as further standard phenomenological background knowledge. They are intended to serve as a brief but sufficiently detailed primer on LHC physics to enable graduate students and all newcomers to the field to find their way through the more advanced literature, and to help those starting to work in this very timely and exciting field of research. Advanced readers will benefit from this course-based text for their own lectures and seminars. .
Book Synopsis Two Higgs Doublet Model with Vectorlike Leptons and Contributions to Pp {u2192} W W and H {u2192} W W. by :
Download or read book Two Higgs Doublet Model with Vectorlike Leptons and Contributions to Pp {u2192} W W and H {u2192} W W. written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this paper, we study a two Higgs doublet model extended by vectorlike leptons mixing with one family of standard model leptons. Generated flavor violating couplings between heavy and light leptons can dramatically alter the decay patterns of heavier Higgs bosons. We focus on pp → H → ?4?? → W ???, where ?4 is a new neutral lepton, and study possible effects of this process on the measurements of pp → W W and H → W W since it leads to the same final states. We discuss predictions for contributions to pp → W W and H →WW and their correlations from the region of the parameter space that satisfies all available constraints including precision electroweak observables and from pair production of vectorlike leptons. Large contributions, close to current limits, favor small tan ? region of the parameter space. We find that, as a result of adopted cuts in experimental analyses, the contribution to pp → W W can be an order of magnitude larger than the contribution to H → W W . Thus, future precise measurements of pp → W W will further constrain the parameters of the model. Also, we also consider possible contributions to pp → W W from the heavy Higgs decays into a new charged lepton e4 (H → e4? → W ???), exotic SM Higgs decays, and pair production of vectorlike leptons.
Book Synopsis Higgs Boson Phenomenology Beyond the Standard Model by : Solen Le Corre
Download or read book Higgs Boson Phenomenology Beyond the Standard Model written by Solen Le Corre and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Following the discovery of the Higgs boson in June 2012 at the Large Hadron Collider, the particle collider located beneath the France-Switzerland border, interest in the study of the scalar sector in elementary particle physics significantly increased. In particular, as the Higgs boson plays a very special role in the Standard Model of particle physics, experimentalists study its properties with great care.The goal of the Standard Model is to describe the interactions between elementary particles. However the theory is not quite complete. Indeed, in addition to some purely theoretical problems, a number of experimental observations cannot be explained by the Standard Model. Theorists are therefore looking for a more comprehensive theory able to fully explain the observations.This thesis is based on the study of the scalar sector of two different extensions of the Standard Model of particle physics. I have worked on the Two-Higgs Doublet Model - this model is purely effective but can be included in more comprehensive theories - as well as on a model based on a combination of Technicolor and Composite Higgs theories in the framework of the SU (4) ? Sp(4) symmetry breaking pattern. I studied the latter via an effective approach but the full theory is able to get rid of some of the pitfalls of the Standard Model.These two models include a scalar sector that is richer than the one found in the Standard Model and contain at least one particle which can be assimilated to the Higgs boson discovered at the LHC.I performed a phenomenological study for these two models and tested them against both theoretical and experimental constraints. In particular I used the latest studies on the 125 GeV Higgs boson and on possible additional scalars performed by the ATLAS and CMS collaborations. The application of all these constraints drastically reduced the available parameter space of the two models. In particular it narrowed the possible mass range of the additional scalars, allowing to know more accurately where to search them experimentally in order to prove or rule out their possible existence.As of today the two theories I worked on are still not excluded by the latest experimentaldata.
Book Synopsis Two Higgs Doublet Model with Vectorlike Leptons and Contributions to Pp 2!W W and H 2!W W. by :
Download or read book Two Higgs Doublet Model with Vectorlike Leptons and Contributions to Pp 2!W W and H 2!W W. written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this paper, we study a two Higgs doublet model extended by vectorlike leptons mixing with one family of standard model leptons. Generated flavor violating couplings between heavy and light leptons can dramatically alter the decay patterns of heavier Higgs bosons. We focus on pp → H → [nu]4[nu][mu] → W [mu][nu][mu], where [nu]4 is a new neutral lepton, and study possible effects of this process on the measurements of pp → W W and H → W W since it leads to the same final states. We discuss predictions for contributions to pp → W W and H →WW and their correlations from the region of the parameter space that satisfies all available constraints including precision electroweak observables and from pair production of vectorlike leptons. Large contributions, close to current limits, favor small tan [beta] region of the parameter space. We find that, as a result of adopted cuts in experimental analyses, the contribution to pp → W W can be an order of magnitude larger than the contribution to H → W W . Thus, future precise measurements of pp → W W will further constrain the parameters of the model. Also, we also consider possible contributions to pp → W W from the heavy Higgs decays into a new charged lepton e4 (H → e4[mu] → W [mu][nu][mu]), exotic SM Higgs decays, and pair production of vectorlike leptons.
Book Synopsis Phenomenology of Two Higgs Doublet Models with Flavor Changing Neutral Currents by :
Download or read book Phenomenology of Two Higgs Doublet Models with Flavor Changing Neutral Currents written by and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive phenomenological analysis of a two Higgs doublet model, with flavor changing scalar currents at the tree level, called model III, is presented. Constraints from existing experimental information especially on?F=2 processes are systematically incorporated. Constraints emerging from rare B-decays, Z → b{anti b}, and the?-parameter are also examined. Experimental implications for ee (?+?) → t{anti c} + {anti t}c, t → c?(Z, g), D°-{anti D}°, and B{sub s}°-{anti B}{sub s}° oscillations, and for e+e (Z) → b{anti s} + {anti b}s are investigated and experimental effort towards these is stressed. They also emphasize the importance of clarifying the experimental issues pertaining to Z → b{anti b}.
Book Synopsis Beyond Standard Model Collider Phenomenology of Higgs Physics and Supersymmetry by : Marc Christopher Thomas
Download or read book Beyond Standard Model Collider Phenomenology of Higgs Physics and Supersymmetry written by Marc Christopher Thomas and published by Springer. This book was released on 2016-08-01 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis studies collider phenomenology of physics beyond the Standard Model at the Large Hadron Collider (LHC). It also explores in detail advanced topics related to Higgs boson and supersymmetry – one of the most exciting and well-motivated streams in particle physics. In particular, it finds a very large enhancement of multiple Higgs boson production in vector-boson scattering when Higgs couplings to gauge bosons differ from those predicted by the Standard Model. The thesis demonstrates that due to the loss of unitarity, the very large enhancement for triple Higgs boson production takes place. This is a truly novel finding. The thesis also studies the effects of supersymmetric partners of top and bottom quarks on the Higgs production and decay at the LHC, pointing for the first time to non-universal alterations for two main production processes of the Higgs boson at the LHC–vector boson fusion and gluon–gluon fusion. Continuing the exploration of Higgs boson and supersymmetry at the LHC, the thesis extends existing experimental analysis and shows that for a single decay channel the mass of the top quark superpartner below 175 GeV can be completely excluded, which in turn excludes electroweak baryogenesis in the Minimal Supersymmetric Model. This is a major new finding for the HEP community. This thesis is very clearly written and the introduction and conclusions are accessible to a wide spectrum of readers.
Book Synopsis The Anomalous Magnetic Moment of the Muon by : Fred Jegerlehner
Download or read book The Anomalous Magnetic Moment of the Muon written by Fred Jegerlehner and published by Springer Science & Business Media. This book was released on 2008 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews the present state of knowledge of the anomalous magnetic moment a=(g-2)/2 of the muon. The muon anomalous magnetic moment is one of the most precisely measured quantities in elementary particle physics and provides one of the most stringent tests of relativistic quantum field theory as a fundamental theoretical framework. It allows for an extremely precise check of the standard model of elementary particles and of its limitations.
Book Synopsis Phenomenology and Constraints in Singlet Extensions of Two Higgs Doublet Models by : Steven Paasch
Download or read book Phenomenology and Constraints in Singlet Extensions of Two Higgs Doublet Models written by Steven Paasch and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Simulations and Phenomenology of Topological Defects in Two Higgs Doublet Models by : Dominic Viatic
Download or read book Simulations and Phenomenology of Topological Defects in Two Higgs Doublet Models written by Dominic Viatic and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
