Download or read book Lepton and Baryon Number Violation in Particle Physics Astrophysics and Cosmology written by H. V. Klapdor-Kleingrothaus and published by CRC Press. This book was released on 1999-01-01 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Baryon Number Violation At The Electroweak Scale First Yale texas Workshop written by Lawrence M Krauss and published by World Scientific. This book was released on 1992-10-28 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the proceedings of an up-to-date and comprehensive meeting devoted to the question whether baryon number violation can occur — in the standard model of weak and electromagnetic interactions — at rates which can be relevant to cosmology and particle experiment. There has been a great deal of activity and many new results in the past year, and the meeting was the first occasion for a review of the field. It is the only source in which all the work in this field is reviewed in a single volume. As such, it would provide a useful reference for graduate students and researchers wanting to learn more about this area.
Download or read book Baryon Number Violation in the Standard Model written by Gian Franco Bonini and published by . This book was released on 1999 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Baryon Number Violation At The Ssc Proceedings Of The Santa Fe Workshop written by Michael P Mattis and published by World Scientific. This book was released on 1990-07-13 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Baryon Number Violation Beyond the Standard Model written by Bartosz Fornal and published by . This book was released on 2014 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Baryon and Lepton Numbers in Particle Physics Beyond the Standard Model written by Jonathan Mark Arnold and published by . This book was released on 2014 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Baryon number violation in the standard model written by Andreas Ringwald and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Baryon Number Violation in the Standard Model written by A. Ringwald and published by . This book was released on 1989 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Baryon Number Violation and Instantons in the Standard Model written by V. V. Khoze and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Baryon Number Violation at Finite Temperature in the Standard Model written by Andrew Glen Cohen and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Baryon Number Violation at the Electroweak Scale written by Lawrence M. Krauss and published by World Scientific Publishing Company Incorporated. This book was released on 1992 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Baryon and Lepton Number Violation in the Standard Model at High Energy written by Los Alamos National Laboratory and published by . This book was released on 1992 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamics of the Standard Model written by John F. Donoghue and published by Cambridge University Press. This book was released on 2023-01-31 with total page 599 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 2014 edition, now OA, provides a detailed and practical account of the Standard Model of particle physics.
Download or read book Topics in Hadronic Physics written by Zachary Guralnik and published by . This book was released on 1994 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book University Physics written by OpenStax and published by . This book was released on 2016-11-04 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: University Physics is a three-volume collection that meets the scope and sequence requirements for two- and three-semester calculus-based physics courses. Volume 1 covers mechanics, sound, oscillations, and waves. Volume 2 covers thermodynamics, electricity and magnetism, and Volume 3 covers optics and modern physics. This textbook emphasizes connections between between theory and application, making physics concepts interesting and accessible to students while maintaining the mathematical rigor inherent in the subject. Frequent, strong examples focus on how to approach a problem, how to work with the equations, and how to check and generalize the result. The text and images in this textbook are grayscale.
Download or read book Cosmological Baryon and Lepton Number in the Presence of Electroweak Fermion Number Violation written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-12-28 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the presence of rapid fermion-number violation due to nonperturbative electroweak effects certain relations between the baryon number of the Universe and the lepton numbers of the Universe are predicted. In some cases the electron-neutrino asymmetry is exactly specified in terms of the baryon asymmetry. Without introducing new particles, beyond the usual quarks and leptons, it is necessary that the Universe possess a nonzero value of B - L prior to the epoch of fermion-number violation if baryon and lepton asymmetries are to survive. Contrary to intuition, even though electroweak processes violate B + L, a nonzero value of B + L persists after the epoch of rapid fermion-number violation. If the standard model is extended to include lepton-number violation, for example through Majorana neutrino masses, then electroweak processes will reduce the baryon number to zero even in the presence of an initial B - L unless 20 M(sub L) approximately greater than the square root of (T(sub B - L) m(sub P1)) where M(sub L) sets the scale of lepton number violation and T(sub B - L) is the temperature at which a B - L asymmetry is produced. In many models this implies that neutrinos must be so light that they cannot contribute appreciably to the mass density of the Universe. Harvey, Jeffrey A. and Turner, Michael S. NASA-CR-186609, NAS 1.26:186609, FERMILAB-PUB-90/49-A, EFI-90-33 NSF PHY-86-58033; NAGW-1340...
Download or read book The Standard Model written by Cliff Burgess and published by Cambridge University Press. This book was released on 2007 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 2006 book uses the standard model as a vehicle for introducing quantum field theory.
