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Author : Conny Renate Beskidt
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (92 download)
Download or read book Supersymmetry in the Light of Dark Matter and a 125 GeV Higgs Boson written by Conny Renate Beskidt and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Béranger Dumont
Publisher : Springer
ISBN 13 : 3319449567
Total Pages : 271 pages
Book Rating : 4.3/5 (194 download)
Download or read book Higgs, Supersymmetry and Dark Matter After Run I of the LHC written by Béranger Dumont and published by Springer. This book was released on 2016-09-21 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work was nominated as an outstanding PhD thesis by the LPSC, Université Grenoble Alpes, France. The LHC Run 1 was a milestone in particle physics, leading to the discovery of the Higgs boson, the last missing piece of the so-called "Standard Model" (SM), and to important constraints on new physics, which challenge popular theories like weak-scale supersymmetry. This thesis provides a detailed account of the legacy of the LHC Run 1 ≤¥regarding these aspects. First, the SM and the need for its extension are presented in a concise yet revealing way. Subsequently, the impact of the LHC Higgs results on scenarios of new physics is assessed in detail, including a careful discussion of the relevant uncertainties. Two approaches are considered: generic modifications of the Higgs couplings, possibly arising from extended Higgs sectors or higher-dimensional operators; and tests of specific new physics models. Lastly, the implications of the null results of the searches for new physics are discussed with a particular focus on supersymmetric dark matter candidates. Here as well, two approaches are presented: the "simplified models" approach, and recasting by event simulation. This thesis stands out for its educational approach, its clear language and the depth of the physics discussion. The methods and tools presented offer readers essential practical tools for future research.
Author : Béranger Dumont
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (958 download)
Download or read book Higgs, Supersymmetry and Dark Matter After Run I of the LHC written by Béranger Dumont and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two major problems call for an extension of the Standard Model (SM): the hierarchy problem in the Higgs sector and the dark matter in the Universe. The discovery of a Higgs boson with mass of about 125 GeV was clearly the most significant piece of news from CERN's Large Hadron Collider (LHC). In addition to representing the ultimate triumph of the SM, it shed new light on the hierarchy problem and opened up new ways of probing new physics. The various measurements performed at Run I of the LHC constrain the Higgs couplings to SM particles as well as invisible and undetected decays. In this thesis, the impact of the LHC Higgs results on various new physics scenarios is assessed, carefully taking into account uncertainties and correlations between them. Generic modifications of the Higgs coupling strengths, possibly arising from extended Higgs sectors or higher-dimensional operators, are considered. Furthermore, specific new physics models are tested. This includes, in particular, the phenomenological Minimal Supersymmetric Standard Model.While a Higgs boson has been found, no sign of beyond the SM physics was observed at Run I of the LHC in spite of the large number of searches performed by the ATLAS and CMS collaborations. The implications of the negative results obtained in these searches constitute another important part of this thesis. First, supersymmetric models with a dark matter candidate are investigated in light of the negative searches for supersymmetry at the LHC using a so-called "simplified model" approach. Second, tools using simulated events to constrain any new physics scenario from the LHC results are presented. Moreover, during this thesis the selection criteria of several beyond the SM analyses have been reimplemented in the MadAnalysis 5 framework and made available in a public database.
Author : Gordon Kane
Publisher : Basic Books (AZ)
ISBN 13 : 0465082971
Total Pages : 218 pages
Book Rating : 4.4/5 (65 download)
Download or read book Supersymmetry and Beyond written by Gordon Kane and published by Basic Books (AZ). This book was released on 2013-05-14 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Revision of: Supersymmetry. Cambridge, Mass.: Perseus Pub., 2000.
Author : Gordon Kane
Publisher : World Scientific
ISBN 13 : 9814495824
Total Pages : 503 pages
Book Rating : 4.8/5 (144 download)
Download or read book Perspectives On Supersymmetry written by Gordon Kane and published by World Scientific. This book was released on 1998-07-03 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supersymmetry is at an exciting stage of development. It extends the Standard Model of particle physics into a more powerful theory that both explains more and allows more questions to be addressed. Most important, it opens a window for studying and testing fundamental theories at the Planck scale. Experimentally we are finally entering the intensity and energy regions where superpartners are likely to be detected, and then studied. There has been progress in understanding the remarkable physics implications of supersymmetry, including the derivation of the Higgs mechanism, the unification of the Standard Model forces, cosmological connections such as a candidate for the cold dark matter of the universe and the scalar fields that drive inflation and their potential, the relationship to Planck scale theories, and more.While there are a number of reviews and books where the mathematical structure and uses of supersymmetry can be learned, there are few where the particle physics is the main focus. This book fills that gap. It begins with an excellent pedagogical introduction to the physics and methods and formalism of supersymmetry, by S Martin, which is accessible to anyone with a basic knowledge of the Standard Model of particle physics. Next is an overview of open questions by K Dienes and C Kolda, followed by chapters on topics ranging from how to detect superpartners to connections with Planck scale theories, by leading experts.This invaluable book will allow any interested physicist to understand the coming experimental and theoretical progress in supersymmetry, and will also help students and workers to quickly learn new aspects of supersymmetry they want to pursue.
Author : David Sanford
Publisher :
ISBN 13 : 9781267420350
Total Pages : 168 pages
Book Rating : 4.4/5 (23 download)
Download or read book Physics Beyond the Standard Model written by David Sanford and published by . This book was released on 2012 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this dissertation we consider a number of topical issues in physics beyond the standard model. Motivated by null results from superpartner searches and the tentative Higgs boson signal at mh[subscript], [approximate] 125 GeV, we consider the framework of focus point supersymmetry. Within the focus point framework we examine models in which the neutralino is a thermal relic which saturates the observed dark matter relic density, and generalize the results for dark matter direct detection to generic models with heavy scalars. We also extend the original focus point framework to the case of non-zero A-terms, allowing models in which mh[subscript], [approximate] 125 GeV can be achieved with only 1% fine-tuning in the weak scale. We also consider formal aspects of anomaly-mediated supersymmetry breaking, in particular a recent derivation of anomaly-mediated soft masses using the full supergravity framework and its relation to the original derivation. Finally, we examine models in which recent contradictory results from light dark matter experiments can be partially explained by relaxing the common assumption of equal couplings to protons and neutrons.
Author : Gordon Kane
Publisher : World Scientific
ISBN 13 : 9814464864
Total Pages : 604 pages
Book Rating : 4.8/5 (144 download)
Download or read book Perspectives On Supersymmetry Ii written by Gordon Kane and published by World Scientific. This book was released on 2010-04-14 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supersymmetry is at an exciting stage of development. It extends the Standard Model of particle physics into a more powerful theory that both explains more and allows more questions to be addressed. Most importantly, it opens a window for studying and testing fundamental theories at the Planck scale. Experimentally we are finally entering the intensity and energy and sensitivity regions where superpartners and supersymmetric dark matter candidates are likely to be detected, and then studied. There has been progress in understanding the remarkable physics implications of supersymmetry, including the derivation of the Higgs mechanism, the unification of the Standard Model forces, cosmological connections such as a candidate for the cold dark matter of the universe and consequences for understanding the cosmological history of the universe, and more.This volume begins with an excellent pedagogical introduction to the physics and methods and formalism of supersymmetry which is accessible to anyone with a basic knowledge of the Standard Model of particle physics. Next is an overview of open questions, followed by chapters on topics such as how to detect superpartners and tools for studying them, the current limits on superpartner masses as we enter the LHC era, the lightest superpartner as a dark matter candidate in thermal and non-thermal cosmological histories, and associated Z' physics. Most chapters have been extended and updated from the earlier edition and some are new.This superb book will allow interested physicists to understand the coming experimental and theoretical progress in supersymmetry and the implications of discoveries of superpartners, and will also help students and workers to quickly learn new aspects of supersymmetry they want to pursue.
Author :
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (16 download)
Download or read book Supersymmetric Sub-Electroweak Scale Dark Matter, the Galactic Center Gamma-ray Excess, and Exotic Decays of the 125 GeV Higgs Boson written by and published by . This book was released on 2014 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Deog Ki Hong
Publisher : AIP Conference Proceedings (Nu
ISBN 13 :
Total Pages : 670 pages
Book Rating : 4.:/5 (318 download)
Download or read book Supersymmetry and the Unification of Fundamental Interactions written by Deog Ki Hong and published by AIP Conference Proceedings (Nu. This book was released on 2008-12-11 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: This annual SUSY conference has become the world's largest international meeting devolted to new ideas in high energy physics. The main subject of the conference is theoretical and phenomenological aspects of supersymmetric theories, and dark matter and dark energy, and other comological connections. New, interesting results from various experimental groups are increasingly presented at the conference as well. With roughly 200 plenary and parallel presentations, SUSY08 will likely deliver energy and enthusiasm of both theorists and experimentalists who are searching the frontier of high energy physics.
Author : Ignatios Antoniadis
Publisher : Springer
ISBN 13 : 3662441721
Total Pages : 178 pages
Book Rating : 4.6/5 (624 download)
Download or read book Supersymmetry After the Higgs Discovery written by Ignatios Antoniadis and published by Springer. This book was released on 2014-08-18 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supersymmetry (SUSY) is a new symmetry that relates bosons and fermions, which has strong support at both the mathematical and the physical level. This book offers a comprehensive review, following the development of SUSY from its very early days up to present. The order of the contributions should provide the reader with the historical development as well as the latest theoretical updates and interpretations, and experimental constraints from particle accelerators and dark matter searches. It is a great pleasure to bring together here contributions from authors who initiated or have contributed significantly to the development of this theory over so many years. To present a balanced point of view, the book also includes a closing contribution that attempts to describe the physics beyond the Standard Model in the absence of SUSY. The contributions to this book have been previously published in The European Physical Journal C - Particles and Fields.
Download or read book Supersymmetric Exotic Decays of the 125 GeV Higgs Boson written by and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We reveal a set of novel decay topologies for the 125 GeV Higgs boson in supersymmetry which are initiated by its decay into a pair of neutralinos, and discuss their collider search strategies. This category of exotic Higgs decays are characterized by the collider signature: visible objects + $\mbox{${\not\! E}_{\rm T}$}$, with $\mbox{${\not\! E}_{\rm T}$}$ dominantly arising from escaping dark matter particles. Their benchmark arises naturally in the Peccei-Quinn symmetry limit of the MSSM singlet-extensions, which is typified by the co-existence of three light particles: singlet-like scalar $h_1$ and pseudoscalar $a_1$, and singlino-like neutralino $\chi_1$, all with masses of $\lesssim 10$ GeV, and the generically suppression of the exotic decays of the 125 GeV Higgs boson $h_2\to h_1 h_1$, $a_1a_1$ and $\chi_1\chi_1$, however. As an illustration, we study the decay topology: $h_2 \to \chi_1 \chi_2$, where the bino-like $\chi_2$ decays to $h_1 \chi_1$ or $a_1 \chi_1$, and $h_1/a_1 \to f\bar f$, with $f\bar f = \mu^+\mu^-$, $b\bar b$. In the di-muon case ($m_{h_1/a_1} \sim 1$ GeV), a statistical sensitivity of $\frac{S}{\sqrt{B}}> 6 \sigma$ can be achieved easily at the 8 TeV LHC, assuming $\frac{\sigma(pp \rightarrow W h_2)}{\sigma(pp \rightarrow W h_{\rm SM})} {\rm Br}(h_2 \to \mu^+\mu^- \chi_1 \chi_1)=0.1$. In the $b\bar b$ case ($m_{h_1/a_1} \sim 45$ GeV), 600 fb$^{-1}$ data at the 14 TeV LHC can lead to a statistical sensitivity of $\frac{S}{\sqrt{B}}> 5 \sigma$, assuming $\frac{\sigma(pp \rightarrow Z h_2)}{\sigma(pp \rightarrow Z h_{\rm SM})} {\rm Br}(h_2 \to b\bar b \chi_1 \chi_1)=0.5$. These exotic decays open a new avenue for exploring new physics couplings with the 125 GeV Higgs boson at colliders.
Author : Howard Baer
Publisher : Cambridge University Press
ISBN 13 : 1009289845
Total Pages : 557 pages
Book Rating : 4.0/5 (92 download)
Download or read book Weak Scale Supersymmetry written by Howard Baer and published by Cambridge University Press. This book was released on 2023-01-31 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: This OA text develops the basic concepts of supersymmetry for experimental and phenomenological particle physicists and graduate students.
Author : David Thomas
Publisher :
ISBN 13 :
Total Pages : 184 pages
Book Rating : 4.:/5 (319 download)
Download or read book Supersymmetry and Dark Matter, a New Candidate written by David Thomas and published by . This book was released on 1991 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Amin Abou Ibrahim
Publisher :
ISBN 13 :
Total Pages : 386 pages
Book Rating : 4.:/5 (12 download)
Download or read book Testing Supersymmetry at Future High Energy Colliders, in Dark Matter and High Precision Experiments written by Amin Abou Ibrahim and published by . This book was released on 2020 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The observation of the Higgs boson at 125 GeV indicates that the size of weak scale supersymmetry lies in the TeV region which makes the discovery of supersymmetry at the LHC more challenging. Here we discuss the potential for the discovery of sparticles and of heavier Higgs bosons at HL-LHC and also argue in favor of construction of a machine with higher energy, i.e., a 27 TeV high energy LHC (HE-LHC). We carry out a comparative study for the discovery of electroweakinos and heavier Higgs bosons at the two machines. For a number of test model points, it is found that the discovery of sparticles (or of heavier Higgs) would require a HL-LHC run between 5-8 years while the same parameter points can be discovered in a period of few weeks to ~ 1.5 yr at HE-LHC. The analysis indicates that the HE-LHC possibility should be seriously pursued as it would significantly increase the discovery reach for sparticles and for heavier Higgs beyond the reach of HL-LHC and decrease the run period for discovery for models which are also discoverable at HL-LHC. In this work we also discuss the possibility of detecting hidden sector dark matter at the LHC. Specifically we analyze the case when the dark matter resides in the hidden sector while a charged sparticle is the LSP of MSSM. We show that for the case when the portal to the hidden sector is via gauge kinetic mixing and Stueckelberg mass mixing generating feeble interactions between the visible sector and the hidden sector, the charged LSP of MSSM will decay into the hidden sector dark matter. In this case the charged particle will be long-lived and will leave a track inside the detector. We considered two cases: (i) a stau which produces a track but decays inside the detector and can be identified as a decaying particle with missing energy, (ii) a stop which produces an R-hadron and decays outside. Each case points to a hidden sector dark matter. For the case (ii) future detectors such as MATHUSLA and FASER will explore the lifetime frontier and are capable of detecting long-lived particles such as the stop which decay further away from their production vertex and they will provide further test of the hidden sector dark matter models. We show that models where the dark matter resides in the hidden sector require both the freeze-out and the freeze-in mechanisms to produce the desired amount of dark matter consistent with the Planck experiment. We also show that the existence of a hidden sector can expand the parameter space of natural supersymmetry. Finally we discuss how precision physics provides another avenue for the exploration of new physics beyond the standard model"--Author's abstract.
Author : Jihn E Kim
Publisher : World Scientific
ISBN 13 : 9814543152
Total Pages : 414 pages
Book Rating : 4.8/5 (145 download)
Download or read book Supersymmetry, Supergravity And Superstring - Proceedings Of The Kias-ctp International Symposium written by Jihn E Kim and published by World Scientific. This book was released on 2000-06-27 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supersymmetry, supergravity and superstring are the most popular research topics in particle physics. In particular, the phenomenological studies beyond the standard model have become very popular in view of possible identification or exclusion of supersymmetric particles in the future. Also, the lightest supersymmetric particle in most supersymmetric models can be a good candidate for dark matter in the universe.The recent developments in supersymmetry with important applications to particle physics are the main theme of this book, which includes superstring calculations with D-branes, TeV-scale gravity, superstring- and supergravity-inspired interactions, supersymmetric GUT, supergravity phenomenology, and cosmological implications of LSP.
Author : Pran Nath
Publisher :
ISBN 13 :
Total Pages : 342 pages
Book Rating : 4.:/5 ( download)
Download or read book The 10th International Conference on Supersymmetry and Unification of Fundamental Interactions written by Pran Nath and published by . This book was released on 2002 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Shaaban Khalil
Publisher : CRC Press
ISBN 13 : 1315350874
Total Pages : 394 pages
Book Rating : 4.3/5 (153 download)
Download or read book Supersymmetry Beyond Minimality written by Shaaban Khalil and published by CRC Press. This book was released on 2017-12-06 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supersymmetry (SUSY) is one of the most important ideas ever conceived in particle physics. It is a symmetry that relates known elementary particles of a certain spin to as yet undiscovered particles that differ by half a unit of that spin (known as Superparticles). Supersymmetric models now stand as the most promising candidates for a unified theory beyond the Standard Model (SM). SUSY is an elegant and simple theory, but its existence lacks direct proof. Instead of dismissing supersymmetry altogether, Supersymmetry Beyond Minimality: from Theory to Experiment suggests that SUSY may exist in more complex and subtle manifestation than the minimal model. The book explores in detail non-minimal SUSY models, in a bottom-up approach that interconnects experimental phenomena in the fermionic and bosonic sectors. The book considers with equal emphasis the Higgs and Superparticle sectors, and explains both collider and non-collider experiments. Uniquely, the book explores charge/parity and lepton flavour violation. Supersymmetry Beyond Minimality: from Theory to Experiment provides an introduction to well-motivated examples of such non-minimal SUSY models, including the ingredients for generating neutrino masses and/or relaxing the tension with the heavily constraining Large Hadron Collider (LHC) data. Examples of these scenarios are explored in depth, in particular the discussions on Next-to-Minimal Supersymmetric SM (NMSSM) and B-L Supersymmetric SM (BLSSM).
