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Classical Dynamics - damtp
Classical Dynamics - damtp

... From (1.1) and (1.4), two important conservation laws follow immediately. • If F = 0 then p is constant throughout the motion • If τ = 0 then L is constant throughout the motion Notice that τ = 0 does not require F = 0, but only r × F = 0. This means that F must be parallel to r. This is the definit ...
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Calculation of the torque on dielectric elliptical cylinders

... the waist. If the orientation of the particle is with the major axis parallel to the optical axis ( ␪ ⫽ 0°), a change of sign appears for positions of the particle behind the waist as well as for positions on the different sides of the optical axis. When the particle is rotated, the force distributi ...
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... Was able to form all the helical structures of polysaccharides: left and right hand single helices, parallel and anti-parallel double helices. Predicted relative stabilities and structures in agreement with atomistic simulations and experimental observations. (segmental modes kept/ well ...
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... other regions of physics waves in plasma possess a number of the specific characteristic features. The fundamental importance is a resonance effect which appears as a result of waves and particles interaction, conversion of modes, formation of resonators and waveguides. Because of resonance effect u ...
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The Electron and the Holographic Mass Solution

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... First, I wish to sincerely thank my supervisors Dr. Manel Martinez from the Institut de Fisica d’Altes Energies/Spain and Dr. Eckart Lorenz from the Max Planck Institut für Physik in Munich for supervising and providing me with this interesting Ph.D. subject and for giving me a chance to do real phy ...
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... Frye and Adler [11] had proposed a model which takes into account the relaxation effects occurring for neutral defects. However they find the same variation of [ph with F and r~ as the Street-Mott model. Following Street [12], we assume that the photogenerated electron-hole pairs geminate giving ris ...
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Efficient Block Sampling Strategies for Sequential Monte Carlo

... 1950s by physicists and have become very popular over the past few years in statistics and related fields, see Chopin (2002, 2004); Gilks and Berzuini (2001); Künsch (2005); Liu (2001); Pitt and Shephard (1999). For example, these methods are now extensively used to solve sequential Bayesian inferen ...
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... To find out whether these particles are molecules, atoms, or matter in a still finer division, Thomson further made a series of measurements of the ratio of the mass, m, of each of these particles to the charge, e, carried by it. He devised two methods for deflecting the cathode rays, one in a magne ...
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... reproduce itself. A 2π rotation gives a factor -1 in front of the original neutron wave function as predicted for a spin− 21 spinor. So far, one could think about spinors as being identical with Pauli spinors10 of non-relativistic quantum mechanics. This is not quite right. In order to see that, we ...
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... be defined briefly that initial avaliable information is used as an input, this information evokes the rules from long term memory, and judgements are produced as an output by the rules. Judgements resulting from reasoning is a new information. There are two main operations in the process: the first ...
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... 16. Two charges are located on the line shown in the figure below, one on point I and the other on point III. The charge at point I is -5Q and the charge at point III is +3Q. Point II is halfway between points I and III. Other than at infinity, the electric field strength is zero at a point on the l ...
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Standard Model



The Standard Model of particle physics is a theory concerning the electromagnetic, weak, and strong nuclear interactions, as well as classifying all the subatomic particles known. It was developed throughout the latter half of the 20th century, as a collaborative effort of scientists around the world. The current formulation was finalized in the mid-1970s upon experimental confirmation of the existence of quarks. Since then, discoveries of the top quark (1995), the tau neutrino (2000), and more recently the Higgs boson (2013), have given further credence to the Standard Model. Because of its success in explaining a wide variety of experimental results, the Standard Model is sometimes regarded as a ""theory of almost everything"".Although the Standard Model is believed to be theoretically self-consistent and has demonstrated huge and continued successes in providing experimental predictions, it does leave some phenomena unexplained and it falls short of being a complete theory of fundamental interactions. It does not incorporate the full theory of gravitation as described by general relativity, or account for the accelerating expansion of the universe (as possibly described by dark energy). The model does not contain any viable dark matter particle that possesses all of the required properties deduced from observational cosmology. It also does not incorporate neutrino oscillations (and their non-zero masses).The development of the Standard Model was driven by theoretical and experimental particle physicists alike. For theorists, the Standard Model is a paradigm of a quantum field theory, which exhibits a wide range of physics including spontaneous symmetry breaking, anomalies, non-perturbative behavior, etc. It is used as a basis for building more exotic models that incorporate hypothetical particles, extra dimensions, and elaborate symmetries (such as supersymmetry) in an attempt to explain experimental results at variance with the Standard Model, such as the existence of dark matter and neutrino oscillations.
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