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Desperately Seeking SUSY h (University of Cambridge) Please ask questions while I’m talking
Desperately Seeking SUSY h (University of Cambridge) Please ask questions while I’m talking

lecture 3
lecture 3

... – 1791: One ten-millionth of ¼ Earth’s meridian through Paris – 1799: Platinum meter bar (refined in 1889 and 1927) – 1960: 1,650,763.73 wavelengths of 2p105d5 of Kr-86 – 1983: Length traveled by light in vacuum in 1/299,762,458 of a sec – 2002: “… as long as GR effects are negligible.” L. R. Flore ...
Insulators and Conductors in Equilibrium
Insulators and Conductors in Equilibrium

Criteria for Core-Collapse Supernova Explosions
Criteria for Core-Collapse Supernova Explosions

EM genius and mystery
EM genius and mystery

An introduction to lattice gauge theory and spin systems
An introduction to lattice gauge theory and spin systems

Dynamics of cold Fermi atoms in one
Dynamics of cold Fermi atoms in one

... optical lattice. It is well known that for a single particle, as well as for many noninteracting particles, there are two fundamental results: the Bloch oscillations of the total momentum and the absence of a net current, which are accompanied by the localization of the particles in configuration sp ...
Formal Expressions for the Electromagnetic Potentials in Any Gauge
Formal Expressions for the Electromagnetic Potentials in Any Gauge

... Apparently the Gibbs gauge is also called the Hamiltonian or temporal gauge, as mentioned in sec. VIII of [9]. That is, the Gibbs gauge is handy in examples where the electric field is known, and the vector potential is needed for use in the Hamiltonian of the system, expressed in terms of canonical ...
Data driven WZ background estimation for SUSY searches with
Data driven WZ background estimation for SUSY searches with

... Pseudo Feynman diagrams depicting the production diagrams of interest to SUSY searches using the three lepton + MET final state. In diagram (a), the decay of the initial electroweakino pair is mediated by sleptons which can be real or virtual depending on the mass hierarchy of the SUSY model under c ...
Document
Document

... University of Cincinnati The oscillation in time of neutral D mesons into their antiparticles, and vice versa, commonly called D0-D0 mixing, has been observed by several experiments in a variety of channels during the past year. While K0-K0 mixing and B0-B0 mixing are (relatively) well understood in ...
CFBDSIR J1458+ 1013B: A Very Cold (> T10) Brown Dwarf in a
CFBDSIR J1458+ 1013B: A Very Cold (> T10) Brown Dwarf in a

A search for the Higgs boson in the decay to b-quarks
A search for the Higgs boson in the decay to b-quarks

... of Cobalt-60. She found that only left-handed neutrinos were detected. The anti neutrino is defined as the right-handed particle (the neutrino has no electrical charge, which was the earlier definition of the anti particle). Electrons, muons an tau leptons have a non-negligible mass, and their state ...
**** 1 - CERN Indico
**** 1 - CERN Indico

Collective motion in biological systems
Collective motion in biological systems

... 2 Introduction. Collective motion in biological systems with the systems treated by statistical mechanics. However, a simple transition from a disordered to an ordered state can take place even in cases when the number of units is in an intermediate scale between few and huge numbers. Thus, most of ...
Widening the Axion Window via Kinetic and Stückelberg Mixings
Widening the Axion Window via Kinetic and Stückelberg Mixings

... PACS numbers: 14.80.Va, 11.25.Wx, 95.35.+d, 98.80.Cq ...
Monday, Nov. 20, 2006
Monday, Nov. 20, 2006

... Determination of Parity Quantum Numbers • 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 ...
decoupling limit
decoupling limit

parity-violating electron scattering
parity-violating electron scattering

... The electroweak interaction arises from the imposition of local gauge invariance to the free particle Lagrangian, which contains left-handed fermions in weak isospin doublets and right-handed fermions in iso-singlets. The specific gauge group that is chosen is SU (2)L × U (1)Y , which results in the ...
WHITE DWARFS AS A SOURCE OF CONSTRAINTS ON EXOTIC …
WHITE DWARFS AS A SOURCE OF CONSTRAINTS ON EXOTIC …

The CMS Fast Simulation
The CMS Fast Simulation

Lecture 13 - PPD - STFC Particle Physics Department
Lecture 13 - PPD - STFC Particle Physics Department

Author`s personal copy
Author`s personal copy

... whose condensate exhibits the scale invariance. To the best of our knowledge, a similar effect has never been reported before. For large currents the charged W boson condensate is contained in the vortex core of size ∼ 1/I, which is surrounded by a large region of size ∼ I where the Higgs field is d ...
Document
Document

A CP - Indico
A CP - Indico

... Conserved additive quantum numbers: Electric charge (processes can move charge between quantum fields, but the sum of all charges is constant) Similar: color charge of quarks and gluons, and the weak charge Quark (baryon) and lepton numbers (however, no theory for these, therefore believed to be onl ...
How well can they be applied for space weather modeling
How well can they be applied for space weather modeling

... significant effects on model results. ...
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Grand Unified Theory

A Grand Unified Theory (GUT) is a model in particle physics in which at high energy, the three gauge interactions of the Standard Model which define the electromagnetic, weak, and strong interactions or forces, are merged into one single force. This unified interaction is characterized by one larger gauge symmetry and thus several force carriers, but one unified coupling constant. If Grand Unification is realized in nature, there is the possibility of a grand unification epoch in the early universe in which the fundamental forces are not yet distinct.Models that do not unify all interactions using one simple Lie group as the gauge symmetry, but do so using semisimple groups, can exhibit similar properties and are sometimes referred to as Grand Unified Theories as well.Unifying gravity with the other three interactions would provide a theory of everything (TOE), rather than a GUT. Nevertheless, GUTs are often seen as an intermediate step towards a TOE.The novel particles predicted by GUT models are expected to have energies around the GUT scale—just a few orders of magnitude below the Planck scale—and so will be well beyond the reach of any foreseen particle collider experiments. Therefore, the particles predicted by GUT models will be unable to be observed directly and instead the effects of grand unification might be detected through indirect observations such as proton decay, electric dipole moments of elementary particles, or the properties of neutrinos. Some grand unified theories predict the existence of magnetic monopoles.As of 2012, all GUT models which aim to be completely realistic are quite complicated, even compared to the Standard Model, because they need to introduce additional fields and interactions, or even additional dimensions of space. The main reason for this complexity lies in the difficulty of reproducing the observed fermion masses and mixing angles. Due to this difficulty, and due to the lack of any observed effect of grand unification so far, there is no generally accepted GUT model.
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