Neutrino Oscillations and Beyond Standard Model Physics
... Dirac: need 4 independent states to describe a massive fermion (spin-1/2 particle) BUT: in the SM there are no “right-handed neutrinos” ...
... Dirac: need 4 independent states to describe a massive fermion (spin-1/2 particle) BUT: in the SM there are no “right-handed neutrinos” ...
Ontological Aspects of Quantum Field Theory edited by
... which properties a thing has, how its properties evolve in time and out of which parts it is composed. However, it is not a question for physics what a property is, whether the distinction between things and their properties is sensible, how identity and change are to be analyzed and which kinds of ...
... which properties a thing has, how its properties evolve in time and out of which parts it is composed. However, it is not a question for physics what a property is, whether the distinction between things and their properties is sensible, how identity and change are to be analyzed and which kinds of ...
Contents
... (gravity) is done in a very natural manner since the energy-momentum tensor of the electromagnetic field acts as a source of curvature and the metric tensor is implicit in Maxwell´s equations in arbitrary manifolds. In spite of this, an interaction between two fields does not necessarily correspond ...
... (gravity) is done in a very natural manner since the energy-momentum tensor of the electromagnetic field acts as a source of curvature and the metric tensor is implicit in Maxwell´s equations in arbitrary manifolds. In spite of this, an interaction between two fields does not necessarily correspond ...
Monday, Nov. 20, 2006
... • How do we find out the intrinsic parity of particles? – Use observation of decays and production processes – Absolute determination of parity is not possible, just like electrical charge or other quantum numbers. – Thus the accepted convention is to assign +1 intrinsic parity to proton, neutron an ...
... • How do we find out the intrinsic parity of particles? – Use observation of decays and production processes – Absolute determination of parity is not possible, just like electrical charge or other quantum numbers. – Thus the accepted convention is to assign +1 intrinsic parity to proton, neutron an ...
The Haldane-charge conjecture
... (2) is equivalent to the U(2N ) Hubbard model. The degeneracies of the energy-spectrum (8) with V = 0 are related to the dimensions of representations of the SU(2N ) group. In particular, when U > 0, we observe from Eq. (8) that the lowest-energy states correspond to n = N and transform in the antis ...
... (2) is equivalent to the U(2N ) Hubbard model. The degeneracies of the energy-spectrum (8) with V = 0 are related to the dimensions of representations of the SU(2N ) group. In particular, when U > 0, we observe from Eq. (8) that the lowest-energy states correspond to n = N and transform in the antis ...
CHAPTER 14: Elementary Particles
... mesons and baryons. Mesons are particles with integral spin having masses greater than that of the muon (106 MeV/c2). (Mesons are made up of pairs of quarks—a quark and an anti-quark.) They’re unstable and rare. Baryons have masses at least as large as the proton and have halfintegral spins. Baryons ...
... mesons and baryons. Mesons are particles with integral spin having masses greater than that of the muon (106 MeV/c2). (Mesons are made up of pairs of quarks—a quark and an anti-quark.) They’re unstable and rare. Baryons have masses at least as large as the proton and have halfintegral spins. Baryons ...
On Exotic Orders in Stongly Correlated Systems
... Looking back over the contents of this thesis, and indeed my life during the past 6 years, I can’t resist evoking one of my favorite quotes from J.R.R. Tolkien, who reminds us: “Not all who wander are lost”. Indeed, the most rewarding part of assembling what follows was to see, in retrospect, the pa ...
... Looking back over the contents of this thesis, and indeed my life during the past 6 years, I can’t resist evoking one of my favorite quotes from J.R.R. Tolkien, who reminds us: “Not all who wander are lost”. Indeed, the most rewarding part of assembling what follows was to see, in retrospect, the pa ...
Lattice quantum field theory
... 5.11 Weak interactions and the Higgs . . . . . . . . . . . . . . . . . . . . . . . . 100 ...
... 5.11 Weak interactions and the Higgs . . . . . . . . . . . . . . . . . . . . . . . . 100 ...
(Super) Oscillator on CP (N) and Constant Magnetic Field
... problem was considered in a well-known paper by Gibbons and Manton [7], where the existence of a hidden Coulomb-like symmetry was established (see also [8]). Let us mention also the key role of the Hurwitz transformation (and of the second Hopf map) in the recently proposed higher-dimensional quantu ...
... problem was considered in a well-known paper by Gibbons and Manton [7], where the existence of a hidden Coulomb-like symmetry was established (see also [8]). Let us mention also the key role of the Hurwitz transformation (and of the second Hopf map) in the recently proposed higher-dimensional quantu ...
See the slides
... The general path integral is not rigorously defined for curved space of fields. Idea: postulate the value of the path integral looking as infinite-dimensional δ-function, it localizes to the finite-dimensional space of generalized instantons. ...
... The general path integral is not rigorously defined for curved space of fields. Idea: postulate the value of the path integral looking as infinite-dimensional δ-function, it localizes to the finite-dimensional space of generalized instantons. ...
BPS Geometry, AdS/CFT, and String Theory
... phenomenological theories from string theory, and these might be tested in the near future. Some aspects of the cutting-edge experiments in the Large Hadron Collider (LHC) in CERN will presumably address some problems in the Tev Scale physics, for example the electroweak symmetry breaking, superpart ...
... phenomenological theories from string theory, and these might be tested in the near future. Some aspects of the cutting-edge experiments in the Large Hadron Collider (LHC) in CERN will presumably address some problems in the Tev Scale physics, for example the electroweak symmetry breaking, superpart ...
The AdS/CFT Correspondence arXiv:1501.00007
... motivated by black hole thermodynamics, that spacetime arises as a coarse-grained effective description of some underlying microscopic theory, but with a new twist: the relevant description is lower-dimensional. As we will see, black holes not only motivated this idea, but played a key role in both ...
... motivated by black hole thermodynamics, that spacetime arises as a coarse-grained effective description of some underlying microscopic theory, but with a new twist: the relevant description is lower-dimensional. As we will see, black holes not only motivated this idea, but played a key role in both ...
Renormalisation of Noncommutative Quantum Field Theory
... dimensions so that some of them must be compactified to give a realistic model. Compactifying on a noncommutative instead of a commutative torus amounts to turning on a constant background 3-form C. An alternative interpretation based on D-branes on tori in presence of a Neveu-Schwarz B-field was gi ...
... dimensions so that some of them must be compactified to give a realistic model. Compactifying on a noncommutative instead of a commutative torus amounts to turning on a constant background 3-form C. An alternative interpretation based on D-branes on tori in presence of a Neveu-Schwarz B-field was gi ...
Physics - Courses A.Y. 2007/2008 FIS/05 n.d. 2 Code Credits Field
... Fermi Theory of weak decay Discovery of neutrino and measurement of its helicity Parity violation in weak interactions V-A theory of weak interactions Pion and muon decay Weak decays of hadrons GIM model and CKM matrix Pag. 51/67 ...
... Fermi Theory of weak decay Discovery of neutrino and measurement of its helicity Parity violation in weak interactions V-A theory of weak interactions Pion and muon decay Weak decays of hadrons GIM model and CKM matrix Pag. 51/67 ...
Theoretical and observational consistency of Massive Gravity
... categories of the theoretical proposals for dark energy that have been considered in the literature and very soon concentrate on massive gravity as an alternative to dark energy in chapter 2. We will discuss the recently developed ghost-free nonlinear theory for massive spin2 fields, the de Rham-Gab ...
... categories of the theoretical proposals for dark energy that have been considered in the literature and very soon concentrate on massive gravity as an alternative to dark energy in chapter 2. We will discuss the recently developed ghost-free nonlinear theory for massive spin2 fields, the de Rham-Gab ...
9691 KB pdf file
... Ns and Nt are the number of sites in the spatial and temporal directions respectively. Quark fields are defined on the sites, while the gauge fields are defined as SU(3) matrix valued fields on the links joining the sites. Describing the fermions on the lattice is complicated by the fermion doubling ...
... Ns and Nt are the number of sites in the spatial and temporal directions respectively. Quark fields are defined on the sites, while the gauge fields are defined as SU(3) matrix valued fields on the links joining the sites. Describing the fermions on the lattice is complicated by the fermion doubling ...
Exotic path integrals and dualities
... One of the starting points to understand the new connections between geometry and physics is the insight in 1982 that a complete physical description of Morse theory could be given in terms of supersymmetric quantum mechanics. This connected two, until then completely disparate, areas of science. Mo ...
... One of the starting points to understand the new connections between geometry and physics is the insight in 1982 that a complete physical description of Morse theory could be given in terms of supersymmetric quantum mechanics. This connected two, until then completely disparate, areas of science. Mo ...
Symmetry Defs and Properties
... a. The image of a vertex under the symmetry rotation is an opposite vertex. Proof: Let r be the 2-fold rotation. r is not the identity and r followed by r (rr) is a 360° rotation, i.e. the identity. As with triangles, the image of a vertex under r must be a vertex. Its image under rr must be it ...
... a. The image of a vertex under the symmetry rotation is an opposite vertex. Proof: Let r be the 2-fold rotation. r is not the identity and r followed by r (rr) is a 360° rotation, i.e. the identity. As with triangles, the image of a vertex under r must be a vertex. Its image under rr must be it ...
BUSSTEPP Lectures on String Theory
... The main references for string theory used during the course were the standard books on the subject [31, 47] and the more recent review article [37]. The prerequisite supersymmetry lectures can be found in [20].1 The lectures were delivered in the morning and exercises were assigned for the tutorial ...
... The main references for string theory used during the course were the standard books on the subject [31, 47] and the more recent review article [37]. The prerequisite supersymmetry lectures can be found in [20].1 The lectures were delivered in the morning and exercises were assigned for the tutorial ...
String Theory
... the laws of physics emerge. General relativity, electromagnetism and Yang-Mills gauge theories all appear in a surprising fashion. However, they come with baggage. String theory gives rise to a host of other ingredients, most strikingly extra spatial dimensions of the universe beyond the three that ...
... the laws of physics emerge. General relativity, electromagnetism and Yang-Mills gauge theories all appear in a surprising fashion. However, they come with baggage. String theory gives rise to a host of other ingredients, most strikingly extra spatial dimensions of the universe beyond the three that ...
N-Symmetry Direction Fields on Surfaces of Arbitrary Genus
... This section presents tools useful in the study of direction fields defined on surfaces with boundaries, and especially to study their topology. Topology is the study of properties which are invariant by continuous deformations (without cutting or gluing things), called homotopies. In other word, to ...
... This section presents tools useful in the study of direction fields defined on surfaces with boundaries, and especially to study their topology. Topology is the study of properties which are invariant by continuous deformations (without cutting or gluing things), called homotopies. In other word, to ...
Supersymmetry (SUSY)
... A Lorentz scalar only has integer valued angular momentum but fermions also have 1/2 integer spin in addition to orbital angular momentum. Need Spin operator ...
... A Lorentz scalar only has integer valued angular momentum but fermions also have 1/2 integer spin in addition to orbital angular momentum. Need Spin operator ...
String Theory - damtp - University of Cambridge
... the laws of physics emerge. General relativity, electromagnetism and Yang-Mills gauge theories all appear in a surprising fashion. However, they come with baggage. String theory gives rise to a host of other ingredients, most strikingly extra spatial dimensions of the universe beyond the three that ...
... the laws of physics emerge. General relativity, electromagnetism and Yang-Mills gauge theories all appear in a surprising fashion. However, they come with baggage. String theory gives rise to a host of other ingredients, most strikingly extra spatial dimensions of the universe beyond the three that ...
