Two Times - University of Southern California
... •CP (time reversal) violation problem in the strong interactions (but axion not seen?) 2T-physics solves this (a property of 4+2 dims.) – no need for axion! •Why these degrees of freedom? And why in these patterns? •25 parameters : masses, couplings, mixings – is there a theory that determines the ...
... •CP (time reversal) violation problem in the strong interactions (but axion not seen?) 2T-physics solves this (a property of 4+2 dims.) – no need for axion! •Why these degrees of freedom? And why in these patterns? •25 parameters : masses, couplings, mixings – is there a theory that determines the ...
CHAPTER 3: The Experimental Basis of Quantum Theory
... Physics Modern Physics How come we can’t derive this from Maxwellian waves? ...
... Physics Modern Physics How come we can’t derive this from Maxwellian waves? ...
Orbital-Orbital Coupling
... 9.7 Consider a system of two electron each with l=1 and s=1/2. a) what are possible values of the quantum number L for the total angular momentum? b) what are the possible values of the quantum number S for the total spin? c) find the possible quantum numbers j for the combination J=L+S. d) what are ...
... 9.7 Consider a system of two electron each with l=1 and s=1/2. a) what are possible values of the quantum number L for the total angular momentum? b) what are the possible values of the quantum number S for the total spin? c) find the possible quantum numbers j for the combination J=L+S. d) what are ...
PowerPoint Presentation - Chapter 3 Kinematics in 2d
... For a billiard ball collision, the angle of the object ball is determined by the line through the centres at the point of contact. ...
... For a billiard ball collision, the angle of the object ball is determined by the line through the centres at the point of contact. ...
A More “Universal” Atomic Model
... quantum concept, so how then can we model it in a semi-classical manner? There are links between the vacuum and relativity, so if a classical link can be found, we might have a hope of creating a more universal electron model. The vacuum is also fundamental to electromagnetic theory where the vacuum ...
... quantum concept, so how then can we model it in a semi-classical manner? There are links between the vacuum and relativity, so if a classical link can be found, we might have a hope of creating a more universal electron model. The vacuum is also fundamental to electromagnetic theory where the vacuum ...
Momentum and Collisions
... during which two particles come close to each other and interact by means of forces The time interval during which the velocity changes from its initial to final values is assumed to be short The interaction force is assumed to be much greater than any external forces present ...
... during which two particles come close to each other and interact by means of forces The time interval during which the velocity changes from its initial to final values is assumed to be short The interaction force is assumed to be much greater than any external forces present ...
The Law of Cause and Effect
... Until the end of the Nineteenth Century, scientists who believed the law of cause and effect applied the law in their research on the structure of the atom and ultimately produced the Periodic Table of the Elements—a great achievement in knowledge of the order found in nature. With convictions that ...
... Until the end of the Nineteenth Century, scientists who believed the law of cause and effect applied the law in their research on the structure of the atom and ultimately produced the Periodic Table of the Elements—a great achievement in knowledge of the order found in nature. With convictions that ...
Unit 2 Spiraling
... Solids have a fixed shape. In a solid the particles are closely packed together. Each particle in a solid is held in one position and vibrates around that position. This results in a definite shape and volume. The particles in a liquid stay relatively close together, but they can move around each ot ...
... Solids have a fixed shape. In a solid the particles are closely packed together. Each particle in a solid is held in one position and vibrates around that position. This results in a definite shape and volume. The particles in a liquid stay relatively close together, but they can move around each ot ...
2010 midterm exam solutions
... b) What would a measurement of the z-component of angular momentum, Lz , yield? The eigenvalues of Lz are lmz , thus we would measure −4l c) What would a measurement of the x-component of angular momentum, Lx , yield? Since the state is not in an eigenfunction of the Lx angular momentum, the result ...
... b) What would a measurement of the z-component of angular momentum, Lz , yield? The eigenvalues of Lz are lmz , thus we would measure −4l c) What would a measurement of the x-component of angular momentum, Lx , yield? Since the state is not in an eigenfunction of the Lx angular momentum, the result ...
The Phase Diagram of Nuclear Matter
... “[...] A phase is a region of space (a thermodynamic system), throughout which all physical properties of a material are essentially uniform. Examples of physical properties include density, index of refraction, magnetization and chemical composition.” (wikipedia.org) ...
... “[...] A phase is a region of space (a thermodynamic system), throughout which all physical properties of a material are essentially uniform. Examples of physical properties include density, index of refraction, magnetization and chemical composition.” (wikipedia.org) ...
Structure of Nuclear Matter
... The force that binds the nucleons together is called the strong nuclear force. It is a very strong, but short-range, force. It is essentially zero if the nucleons are more than about 10-15 m apart. The Coulomb force is long-range; this is why extra neutrons are needed for stability in high-Z nuclei. ...
... The force that binds the nucleons together is called the strong nuclear force. It is a very strong, but short-range, force. It is essentially zero if the nucleons are more than about 10-15 m apart. The Coulomb force is long-range; this is why extra neutrons are needed for stability in high-Z nuclei. ...
E=mc2: energy and matter entwined - School of Physics
... mass and energy are both but different manifestations of the same thing -- a somewhat unfamiliar conception for the average mind. Furthermore, the equation E is equal to m c-squared, in which energy is put equal to mass, multiplied by the square of the velocity of light, showed that very small amoun ...
... mass and energy are both but different manifestations of the same thing -- a somewhat unfamiliar conception for the average mind. Furthermore, the equation E is equal to m c-squared, in which energy is put equal to mass, multiplied by the square of the velocity of light, showed that very small amoun ...
Charged particles in a magnetic field
... Michael Faraday (1791–1867) noted: The cases of action at a distance are becoming, in a physical point of view, daily more and more important. Sound, light, electricity, magnetism, gravitation, present them as a series. The nature of sound and its dependence on a medium we think we understand, pret ...
... Michael Faraday (1791–1867) noted: The cases of action at a distance are becoming, in a physical point of view, daily more and more important. Sound, light, electricity, magnetism, gravitation, present them as a series. The nature of sound and its dependence on a medium we think we understand, pret ...
Elementary particle
In particle physics, an elementary particle or fundamental particle is a particle whose substructure is unknown, thus it is unknown whether it is composed of other particles. Known elementary particles include the fundamental fermions (quarks, leptons, antiquarks, and antileptons), which generally are ""matter particles"" and ""antimatter particles"", as well as the fundamental bosons (gauge bosons and Higgs boson), which generally are ""force particles"" that mediate interactions among fermions. A particle containing two or more elementary particles is a composite particle.Everyday matter is composed of atoms, once presumed to be matter's elementary particles—atom meaning ""indivisible"" in Greek—although the atom's existence remained controversial until about 1910, as some leading physicists regarded molecules as mathematical illusions, and matter as ultimately composed of energy. Soon, subatomic constituents of the atom were identified. As the 1930s opened, the electron and the proton had been observed, along with the photon, the particle of electromagnetic radiation. At that time, the recent advent of quantum mechanics was radically altering the conception of particles, as a single particle could seemingly span a field as would a wave, a paradox still eluding satisfactory explanation.Via quantum theory, protons and neutrons were found to contain quarks—up quarks and down quarks—now considered elementary particles. And within a molecule, the electron's three degrees of freedom (charge, spin, orbital) can separate via wavefunction into three quasiparticles (holon, spinon, orbiton). Yet a free electron—which, not orbiting an atomic nucleus, lacks orbital motion—appears unsplittable and remains regarded as an elementary particle.Around 1980, an elementary particle's status as indeed elementary—an ultimate constituent of substance—was mostly discarded for a more practical outlook, embodied in particle physics' Standard Model, science's most experimentally successful theory. Many elaborations upon and theories beyond the Standard Model, including the extremely popular supersymmetry, double the number of elementary particles by hypothesizing that each known particle associates with a ""shadow"" partner far more massive, although all such superpartners remain undiscovered. Meanwhile, an elementary boson mediating gravitation—the graviton—remains hypothetical.