Results 21 - 30 of 81

COMMENT ON ORTHOTROPIC MODELS FOR CONCRETE AND GEOMATERIALS

by P. Bafant, F. Asce
"... ABSTRACT: Incrementally linear constitutive equations that are characterized by a ~ orthotrop~c t~n~ential stiffness or. compliance matrix have recently become widely used m fimte element analYSIS of concrete structures and soils. It does not seem to be, however, widely appreciated that such constit ..."
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that such constitutive equations are limited to loading histories in which the prinicipal stress directions do not rotate, and that a violation of this condition can sometimes have serious con-sequences. It is demonstrated that in such a case the orthotropic models do not s.a~isfy the form-invariance condition

TESTING CP VIOLATION AND UNIVERSAL EXTRA DIMENSIONS AT FUTURE COLLIDERS

by unknown authors
"... A future linear e ± e − collider with a clean environment, tunable collision energy, high luminosity, polarized incoming beams, and additional e − e − , eγ and γγ modes, will offer precision tools to explore new physics. Here we summarize three papers submitted to the ICHEP04 conference in which pol ..."
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rotators can produce transversely polarized beams (TPB), providing two more vectors, they would make it possible to observe CP violation by observing a single final-state particle without measuring its spin. Two specific processes have been considered: a) e + e − → t¯t 1,2 The four-Fermi Lagrangian

Quantum Corrections to the Electroweak Sphaleron”, Dortmund University preprint DO-TH-93/15

by J. Baacke, S. Junker , 1993
"... We have performed a new exact evaluation of the fluctuation determinant κ of the electroweak sphaleron with ΘW = 0. The results differ significantly from a previous calculation of this quantity by Carson et. al.. We find that κ is of order 1 in units (gv) 6 while the previous results indicated a str ..."
Abstract - Cited by 1 (1 self) - Add to MetaCart
rôle in generating baryon number violating processes in the early universe or even at accelerator energies [3]- [5]. The rate of sphaleron transitions in the range of temperatures MW(T) ≪ T ≪ MW(T)/αW has been derived by Arnold and McLerran [4]. It is given by Γ = ω− 2π Ne−Esph/T κ (1) Here ω

Lecture about the Recent Nobel Prize — From B Factory to the Large Hadron Collider —

by George Wei-shu Hou, George Wei-shu Hou , 2009
"... These are the transcriptions of “a talk describing the theoretical insights of those honored (and the one who wasn’t) and how this has led to all the physics we have been doing over the last couple of decades. ” After prologue, we first deal with Nambu’s insight on Spontaneous Symmetry Breaking, whi ..."
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These are the transcriptions of “a talk describing the theoretical insights of those honored (and the one who wasn’t) and how this has led to all the physics we have been doing over the last couple of decades. ” After prologue, we first deal with Nambu’s insight on Spontaneous Symmetry Breaking

P o S(FPCP2009)047 Lecture about the Recent Nobel Prize — From B Factory to the Large Hadron Collider —

by George Wei-shu Hou , 2009
"... These are the transcriptions of “a talk describing the theoretical insights of those honored (and the one who wasn’t) and how this has led to all the physics we have been doing over the last couple of decades. ” After prologue, we first deal with Nambu’s insight on Spontaneous Symmetry Breaking, whi ..."
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These are the transcriptions of “a talk describing the theoretical insights of those honored (and the one who wasn’t) and how this has led to all the physics we have been doing over the last couple of decades. ” After prologue, we first deal with Nambu’s insight on Spontaneous Symmetry Breaking

Unsupervised statistical learning underpins computational, behavioural, and neural manifestations of musical expectation.

by Marcus T Pearce , Herrojo Ruiz , Selina Kapasi , Geraint A Wiggins , Joydeep Bhattacharya - NeuroImage, , 2010
"... The ability to anticipate forthcoming events has clear evolutionary advantages, and predictive successes or failures often entail significant psychological and physiological consequences. In music perception, the confirmation and violation of expectations are critical to the communication of emotio ..."
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The ability to anticipate forthcoming events has clear evolutionary advantages, and predictive successes or failures often entail significant psychological and physiological consequences. In music perception, the confirmation and violation of expectations are critical to the communication

DYNAMICAL EFFECTS IN NEUTRON OPTICS AND SPIN INTERACTIONS

by M. Forte
"... Re'sume '- On e'tudie la production d'effets d'optique neutronique qui sont sensibles 2 la diffusion non-en avant du spin dans l e s conditions de la diffraction dynamique. On considgre l e s cas des interactions spin-orbite et des interactions hypothe'tiques qui violen ..."
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violent P et T. Abstract- The generation of neutron optical effects, which a r e sensitive to non-forward spin scattering in dynamical diffraction conditions, i s studied. Cases of spin-orbit and of supposed P and T violating interactions a r e considered. In the study of low-energy neutron spin

Abstract Cosmological Black Holes as Models of Cosmological Inhomogeneities

by Megan L. Mcclure, Megan L. Mcclure , 2006
"... Since cosmological black holes modify the density and pressure of the surrounding universe, and introduce heat conduction, they produce simple models of cosmologi-cal inhomogeneities that can be used to study the eect of inhomogeneities on the universe's expansion. In this thesis, new cosmologi ..."
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spacetime, unlike previous solutions for cosmological black holes, which violate the energy conditions in some region of spacetime. In addition, it is demonstrated that radiation-dominated and matter-dominated Einstein-de Sitter universes can be directly matched across a hypersurface of constant time

AND

by A. Sherman, M. Schreiber , 2001
"... Abstract. Hole and spin Green’s functions of the two-dimensional t-J model of the CuO2 planes are calculated in an approximation which retains the rotation symmetry in the paramagnetic state and has no presumed magnetic ordering. In this approximation Green’s functions are represented by continued f ..."
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Abstract. Hole and spin Green’s functions of the two-dimensional t-J model of the CuO2 planes are calculated in an approximation which retains the rotation symmetry in the paramagnetic state and has no presumed magnetic ordering. In this approximation Green’s functions are represented by continued

Order of Magnitude Smaller Limit on the Electric Dipole Moment of the Electron

by Acme Collaboration , J Baron , W C Campbell , D Demille , † J M Doyle , † G Gabrielse , † Y V Gurevich , ‡ P W Hess , N R Hutzler , E Kirilov , § I Kozyryev , || B R O'leary , C D Panda , M F Parsons , E S Petrik , B Spaun , A C Vutha , A D West
"... The Standard Model of particle physics is known to be incomplete. Extensions to the Standard Model, such as weak-scale supersymmetry, posit the existence of new particles and interactions that are asymmetric under time reversal (T) and nearly always predict a small yet potentially measurable electr ..."
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·cm. This corresponds to an upper limit of jd e j < 8.7 × 10 −29 e·cm with 90% confidence, an order of magnitude improvement in sensitivity relative to the previous best limit. Our result constrains T-violating physics at the TeV energy scale. T he exceptionally high internal effective electric field E eff of heavy
Results 21 - 30 of 81