Explaining matter/antimatter asymmetries
... cosmological model has been found that improves this by more than a few orders of magnitude. The problem is that CP violation in the KM model requires not only the heavy quark but also the light quark masses, and these latter terms are unimportant at the high temperatures of the early universe [8]. ...
... cosmological model has been found that improves this by more than a few orders of magnitude. The problem is that CP violation in the KM model requires not only the heavy quark but also the light quark masses, and these latter terms are unimportant at the high temperatures of the early universe [8]. ...
Physical Origin of Elementary Particle Masses
... nonlinear). We believe that the utilization of nonlinear methods, as developed in other fields of science, could greatly benefit elementary particle physics, especially in the case of masses. The most typical feature of nonlinear equations is multiplicity of solutions, raising a hope that different gen ...
... nonlinear). We believe that the utilization of nonlinear methods, as developed in other fields of science, could greatly benefit elementary particle physics, especially in the case of masses. The most typical feature of nonlinear equations is multiplicity of solutions, raising a hope that different gen ...
Physical Origin of Elementary Particle Masses
... state), peaked at the classical value. Naively, the only way to get discrete values for the mass would be to assume that the “elementary” particles are bound states of something more fundamental [7], [8]. Probably the only way to end this infinite regress to smaller scales, would be to assume that th ...
... state), peaked at the classical value. Naively, the only way to get discrete values for the mass would be to assume that the “elementary” particles are bound states of something more fundamental [7], [8]. Probably the only way to end this infinite regress to smaller scales, would be to assume that th ...
Presentazione di PowerPoint
... The SM explains the structure and stability of matter, but there are many unanswered questions: Why do we observe matter and almost no antimatter? Why can’t the SM predict a particle’s mass? Are quarks and leptons actually fundamental? Why are there 3 generations of quqrks and leptons? How does ...
... The SM explains the structure and stability of matter, but there are many unanswered questions: Why do we observe matter and almost no antimatter? Why can’t the SM predict a particle’s mass? Are quarks and leptons actually fundamental? Why are there 3 generations of quqrks and leptons? How does ...
Grand unification and enhanced quantum gravitational effects
... scale. In such models, corrections to the unification conditions from quantum gravity are much larger than previously considered [3, 4, 5]. In this paper, we show that the generic size of these effects can be larger than the two-loop corrections usually considered in RG analyses of unification, and ...
... scale. In such models, corrections to the unification conditions from quantum gravity are much larger than previously considered [3, 4, 5]. In this paper, we show that the generic size of these effects can be larger than the two-loop corrections usually considered in RG analyses of unification, and ...
Curriculum Vitae Contact Prof. Sebastiano Albergo Department of
... CMS Collaboration. A New Boson with a Mass of 125 GeV Observed with the CMS Experiment at the Large Hadron Collider. SCIENCE vol. 338 (2012) p. 1569-1575 ...
... CMS Collaboration. A New Boson with a Mass of 125 GeV Observed with the CMS Experiment at the Large Hadron Collider. SCIENCE vol. 338 (2012) p. 1569-1575 ...
Physics and the Integers - damtp
... should be) studies of strongly interacting quantum systems reveal many examples where the dimension of space in which a theory lives is ambiguous. Perhaps the most striking is the AdS/CFT correspondence where quantum field theories are entirely equivalent to quantum gravity theories in higher dimens ...
... should be) studies of strongly interacting quantum systems reveal many examples where the dimension of space in which a theory lives is ambiguous. Perhaps the most striking is the AdS/CFT correspondence where quantum field theories are entirely equivalent to quantum gravity theories in higher dimens ...
The New Minimal Standard Model
... non-baryonic Dark Matter, and mounting evidence for cosmic inflation. It is now clear that the age-tested Minimal Standard Model (MSM) is incomplete and needs to be expanded. There exist many possible directions to go beyond the MSM: supersymmetry, extra dimensions, extra gauge symmetries (e.g., gra ...
... non-baryonic Dark Matter, and mounting evidence for cosmic inflation. It is now clear that the age-tested Minimal Standard Model (MSM) is incomplete and needs to be expanded. There exist many possible directions to go beyond the MSM: supersymmetry, extra dimensions, extra gauge symmetries (e.g., gra ...
Walter Eduard Thirring 1927-2014
... ideas pointing to the eightfold way and the theory of quarks developed later by Murray Gell-Mann and Yuval Ne’eman. In the 1960s Walter’s research interests broadened, first to general relativity and statistical physics and subsequently to condensed-matter physics and the physics of atoms and molecul ...
... ideas pointing to the eightfold way and the theory of quarks developed later by Murray Gell-Mann and Yuval Ne’eman. In the 1960s Walter’s research interests broadened, first to general relativity and statistical physics and subsequently to condensed-matter physics and the physics of atoms and molecul ...
Tutorial material for weak interactions and more
... energy much lower than the W mass (80 GeV). A yet more complete theory is electroweak theory, in which also neutral Z bosons can mediate the weak force. There are reasons to believe that the Standard Model is an effective theory that describes physics well at currently available energy, but should b ...
... energy much lower than the W mass (80 GeV). A yet more complete theory is electroweak theory, in which also neutral Z bosons can mediate the weak force. There are reasons to believe that the Standard Model is an effective theory that describes physics well at currently available energy, but should b ...
Computation, Quantum Theory, and You
... • Mathematicianly approach: Study the set of all discrete dynamical rules, without presupposing one of them is “true” ...
... • Mathematicianly approach: Study the set of all discrete dynamical rules, without presupposing one of them is “true” ...
MSc Particle Physics (TPP) Module Options Form [PDF 201.60KB]
... A recommended module can be exchanged for a different module if the supervisor considers it appropriate. If the substitute module is given by a different department then the course convenor must sign off the on the module (in addition to the supervisor). Six modules (including the two core modules) ...
... A recommended module can be exchanged for a different module if the supervisor considers it appropriate. If the substitute module is given by a different department then the course convenor must sign off the on the module (in addition to the supervisor). Six modules (including the two core modules) ...
Particle Physics on Noncommutative Spaces
... imply the existence of a minimal length in Nature: Gauge theories with a fundamental length are thus very interesting. • A class of models with a fundamental length are gauge theories on noncommutative spaces (length ~ ). • Noncommutative coordinates appear in nature: e.g. electron in a strong B f ...
... imply the existence of a minimal length in Nature: Gauge theories with a fundamental length are thus very interesting. • A class of models with a fundamental length are gauge theories on noncommutative spaces (length ~ ). • Noncommutative coordinates appear in nature: e.g. electron in a strong B f ...
The Hierarchy Problem and New Dimensions at a Millimeter
... being whatever gives a sensible quantum theory of gravity in (4 + n) dimensions! We therefore simply assume that these dangerous operators are not induced. Any extension of the SM at the weak scale must also not give dangerously large corrections to precision electroweak observables. Again, there co ...
... being whatever gives a sensible quantum theory of gravity in (4 + n) dimensions! We therefore simply assume that these dangerous operators are not induced. Any extension of the SM at the weak scale must also not give dangerously large corrections to precision electroweak observables. Again, there co ...
Particle Physics - UW High Energy Physics
... – In higher orders of perturbation theory QFT result in divergences, which are tamed by renormalization – Higher order corrections to higgs results in a divergence that requires high degree of tuning – One can avoid fine tuning if there are cancellations • Note corrections due to fermion-higgs and b ...
... – In higher orders of perturbation theory QFT result in divergences, which are tamed by renormalization – Higher order corrections to higgs results in a divergence that requires high degree of tuning – One can avoid fine tuning if there are cancellations • Note corrections due to fermion-higgs and b ...
High Energy Physics Summer School, Svit, Slovakia 3
... Theoretical Physics Workshop and Summer School, Svit, Slovakia 11-18 September 2016 ...
... Theoretical Physics Workshop and Summer School, Svit, Slovakia 11-18 September 2016 ...
The Basic Laws of Nature: from quarks to cosmos
... Fermions have unknown couplings to the Higgs. We determine the couplings from the fermion mass. B0 and W0 mix to give A0 and Z0. Three Higgs fields are ‘‘eaten’’ by the vector bosons to make longitudinal massive vector boson. Mass of W, mass of Z, and vector couplings of all fermions can be checked ...
... Fermions have unknown couplings to the Higgs. We determine the couplings from the fermion mass. B0 and W0 mix to give A0 and Z0. Three Higgs fields are ‘‘eaten’’ by the vector bosons to make longitudinal massive vector boson. Mass of W, mass of Z, and vector couplings of all fermions can be checked ...
Syllabus, Physics 315, Modern Physics, 3 credits Designation
... end of the semester. Possibilities include molecular physics; the study of various aspects of solids, including conductors, semiconductors, and superconductors; and the nuclear properties of matter and technological applications. Students are encouraged to provide some input on which of those topics ...
... end of the semester. Possibilities include molecular physics; the study of various aspects of solids, including conductors, semiconductors, and superconductors; and the nuclear properties of matter and technological applications. Students are encouraged to provide some input on which of those topics ...
Solving quantum field theories via curved spacetimes
... Eleven years ago several theorists proposed a remarkable correspondence between two seemingly different kinds of theories.1 It is often called a duality because it is an equivalence between two different, “dual” descriptions of the same physics. On one side of the duality are certain quantum field t ...
... Eleven years ago several theorists proposed a remarkable correspondence between two seemingly different kinds of theories.1 It is often called a duality because it is an equivalence between two different, “dual” descriptions of the same physics. On one side of the duality are certain quantum field t ...
Family Gauge Theory
... In the SU_f(3) model, the couplings to ordinary matter is only through the neutrinos. This would make some loop diagrams, involving neutrinos and familons, very interesting and, albeit likely to be small, should eventually be investigated[6]. For example, in the elastic quark (or charged lepton) - n ...
... In the SU_f(3) model, the couplings to ordinary matter is only through the neutrinos. This would make some loop diagrams, involving neutrinos and familons, very interesting and, albeit likely to be small, should eventually be investigated[6]. For example, in the elastic quark (or charged lepton) - n ...
LHC Physics Goals
... This introduces three new fields, which, eventually show up as W+, W and Z0. (!!!) LHC Physics Goals ...
... This introduces three new fields, which, eventually show up as W+, W and Z0. (!!!) LHC Physics Goals ...
Non perturbative QCD
... confinement has not yet been derived from QCD Image: we pull afar two heavy quarks, a strong « string » binds them (linear potential). At som point the string breaks, a quark-antiquark pair jumps out of the vacuum to produce two mesons. You never have separated quarks and ...
... confinement has not yet been derived from QCD Image: we pull afar two heavy quarks, a strong « string » binds them (linear potential). At som point the string breaks, a quark-antiquark pair jumps out of the vacuum to produce two mesons. You never have separated quarks and ...
Physics at Hadron Collider
... - What is the origin of the electroweak symmetry breaking ? - The search for “low energy” supersymmetry Can a link between SUSY and dark matter be ...
... - What is the origin of the electroweak symmetry breaking ? - The search for “low energy” supersymmetry Can a link between SUSY and dark matter be ...
BCS
... BEC – BCS crossover Bound molecules of two atoms on microscopic scale: Bose-Einstein condensate (BEC ) for low T Fermions with attractive interactions ...
... BEC – BCS crossover Bound molecules of two atoms on microscopic scale: Bose-Einstein condensate (BEC ) for low T Fermions with attractive interactions ...
QCD and Nuclei
... • Recover and sharpen the standard nuclear physics approach, put it in the framework of the Standard Model. • Make precise predictions that play a key ingredient in other areas of science, e.g., solar evolution and neutrino mass. • Quest for new states of matter created ...
... • Recover and sharpen the standard nuclear physics approach, put it in the framework of the Standard Model. • Make precise predictions that play a key ingredient in other areas of science, e.g., solar evolution and neutrino mass. • Quest for new states of matter created ...