Baryon Number And Individual Lepton Number Violation In Supersymmetric So10 Grand Unification Theories PDF Download
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Author | : Vincent Alfred Lucas |
Publisher | : |
Total Pages | : 410 |
Release | : 1997 |
Genre | : |
ISBN | : |
Download Baryon Number and Individual Lepton Number Violation in Supersymmetric So(10) Grand Unification Theories Book in PDF, ePub and Kindle
Author | : H. V. Klapdor-Kleingrothaus |
Publisher | : CRC Press |
Total Pages | : 786 |
Release | : 1999-01-01 |
Genre | : Science |
ISBN | : 9780750306164 |
Download Lepton and Baryon Number Violation in Particle Physics, Astrophysics and Cosmology Book in PDF, ePub and Kindle
Bringing together leading researchers from particle physics, astrophysics, and cosmology, Lepton and Baryon Number Violation in Particle Physics, Astrophysics and Cosmology presents reviews of current theoretical ideas, experimental results, and future perspectives in this topical field. The book covers areas related to baryon number (B) and lepton number (L) violation in particle physics, nuclear physics, rare decays, and cosmology. The main topics include B and L violation and grand unified theories; B and L violation in the early universe, cosmology, and astrophysics; Lepton family number violation; and B and L violation and collider physics.
Author | : Jonathan Mark Arnold |
Publisher | : |
Total Pages | : 176 |
Release | : 2014 |
Genre | : Baryon number |
ISBN | : |
Download Baryon and Lepton Numbers in Particle Physics Beyond the Standard Model Book in PDF, ePub and Kindle
The works presented in this thesis explore a variety of extensions of the standard model of particle physics which are motivated by baryon number (B) and lepton number (L), or some combination thereof. In the standard model, both baryon number and lepton number are accidental global symmetries violated only by non-perturbative weak effects, though the combination B-L is exactly conserved. Although there is currently no evidence for considering these symmetries as fundamental, there are strong phenomenological bounds restricting the existence of new physics violating B or L. In particular, there are strict limits on the lifetime of the proton whose decay would violate baryon number by one unit and lepton number by an odd number of units. The first paper included in this thesis explores some of the simplest possible extensions of the standard model in which baryon number is violated, but the proton does not decay as a result. The second paper extends this analysis to explore models in which baryon number is conserved, but lepton flavor violation is present. Special attention is given to the processes of [Mu] to e conversion and [Mu] → e[Gamma] which are bound by existing experimental limits and relevant to future experiments. The final two papers explore extensions of the minimal supersymmetric standard model (MSSM) in which both baryon number and lepton number, or the combination B-L, are elevated to the status of being spontaneously broken local symmetries. These models have a rich phenomenology including new collider signatures, stable dark matter candidates, and alternatives to the discrete R-parity symmetry usually built into the MSSM in order to protect against baryon and lepton number violating processes.
Author | : F. Ferroni |
Publisher | : IOS Press |
Total Pages | : 493 |
Release | : 2009-09-29 |
Genre | : Science |
ISBN | : 1607504502 |
Download Measurements of Neutrino Mass Book in PDF, ePub and Kindle
This volume offers a valuable insight into various aspects of the ongoing work directed at measuring neutrino mass. It took twenty years to refute the assertions of Bethe and Peierls that neutrinos were not observable, but it has since been realised that much can be learnt from these particles. The moral is, as Fiorini argues here, that the study of neutrinos was and remains demanding but rewarding. Subjects addressed in this volume include; clarifying the meaning of the Klapdor-Kleingrothaus results, probing the Majorana nature of neutrinos, observing lepton number violating effects for the first time, studying the end point of the spectrum in the search for neutrino masses and speculating whether it is possible to measure neutrino masses in cosmology. Lectures are enriched with rich historical overviews and valuable introductory material. Attention is also given to theoretical topics such as the evolution of the concept of mass in particle physics, a status report on neutrino oscillations and current discussion on neutrino masses. The reader is further reminded that neutrino masses may also have some bearing on the very origin of the matter among us, and have many deep links with other important lines of current physics research.
Author | : Michael P Mattis |
Publisher | : World Scientific |
Total Pages | : 226 |
Release | : 1990-07-13 |
Genre | : Science |
ISBN | : 9814611174 |
Download Baryon Number Violation At The Ssc? - Proceedings Of The Santa Fe Workshop Book in PDF, ePub and Kindle
It has recently been realized that Baryon Number, a fundamental symmetry in all observed high energy physics reactions, is NOT exactly conserved in the STANDARD ELECTROWEAK (WEINBERG-SALAM) THEORY, at energies of order 10 TeV or higher. This raises the tantalizing possibility of DIRECTLY PRODUCING BARYON NUMBER VIOLATING PROCESSES IN THE NEW GENERATION OF PARTICLE ACCELERATORS, such as the SSC. The Santa Fe Workshop on Baryon Number Violation at the SSC is the first Workshop to bring together experts in the subject to address the very interesting theoretical issues in non-perturbative field theory that need to be settled in order to decide if this possibility may actually be realized.
Author | : |
Publisher | : |
Total Pages | : 776 |
Release | : 2002 |
Genre | : Dissertation abstracts |
ISBN | : |
Download American Doctoral Dissertations Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 924 |
Release | : 2007 |
Genre | : Dissertations, Academic |
ISBN | : |
Download Dissertation Abstracts International Book in PDF, ePub and Kindle
Author | : Bartosz Fornal |
Publisher | : |
Total Pages | : 232 |
Release | : 2014 |
Genre | : Baryon number |
ISBN | : |
Download Baryon Number Violation Beyond the Standard Model Book in PDF, ePub and Kindle
This thesis describes simple extensions of the standard model with new sources of baryon number violation but no proton decay. The motivation for constructing such theories comes from the shortcomings of the standard model to explain the generation of baryon asymmetry in the universe, and from the absence of experimental evidence for proton decay. However, lack of any direct evidence for baryon number violation in general puts strong bounds on the naturalness of some of those models and favors theories with suppressed baryon number violation below the TeV scale. The initial part of the thesis concentrates on investigating models containing new scalars responsible for baryon number breaking. A model with new color sextet scalars is analyzed in more detail. Apart from generating cosmological baryon number, it gives nontrivial predictions for the neutron-antineutron oscillations, the electric dipole moment of the neutron, and neutral meson mixing. The second model discussed in the thesis contains a new scalar leptoquark. Although this model predicts mainly lepton flavor violation and a nonzero electric dipole moment of the electron, it includes, in its original form, baryon number violating nonrenormalizable dimension-five operators triggering proton decay. Imposing an appropriate discrete symmetry forbids such operators. Finally, a supersymmetric model with gauged baryon and lepton numbers is proposed. It provides a natural explanation for proton stability and predicts lepton number violating processes below the supersymmetry breaking scale, which can be tested at the Large Hadron Collider. The dark matter candidate in this model carries baryon number and can be searched for in direct detection experiments as well. The thesis is completed by constructing and briefly discussing a minimal extension of the standard model with gauged baryon, lepton, and flavor symmetries.
Author | : |
Publisher | : |
Total Pages | : 796 |
Release | : 1989 |
Genre | : Particles (Nuclear physics) |
ISBN | : |
Download High Energy Physics Index Book in PDF, ePub and Kindle
Author | : Fayyazuddin |
Publisher | : World Scientific |
Total Pages | : 680 |
Release | : 2012 |
Genre | : Science |
ISBN | : 9814338834 |
Download A Modern Introduction to Particle Physics Book in PDF, ePub and Kindle
The book provides a comprehensive account of particle physics linking various aspects of particle physics in a coherent manner. This self-contained book not only cover basic concepts and recent developments but also overlaps between Astrophysics, Cosmology and Particle Physics, known as astroparticle physics. Several appendices are included to make the book self-contained.