Saturation Physics Yuri Kovchegov The Ohio State University
... negative gluon distribution MRST PDF’s have the same features Does it mean that we have no gluons at x < 10-3 and Q=1 GeV? ...
... negative gluon distribution MRST PDF’s have the same features Does it mean that we have no gluons at x < 10-3 and Q=1 GeV? ...
Introduction a la Physique des Saveur Lourdes
... • 1. What are the elementary constituents of matter? • 2. What holds them together? • 3. What is the correct mathematical framework to describe how the constituents are put together to form matter, how do they interact with each other and how can one predict its behavior under different condition ...
... • 1. What are the elementary constituents of matter? • 2. What holds them together? • 3. What is the correct mathematical framework to describe how the constituents are put together to form matter, how do they interact with each other and how can one predict its behavior under different condition ...
The spin-dependent structure function
... Q) Calorimeter:A composite detector using total absorption of particles to measure the energy and position of incident particles or jets. In the process of absorption showers are generated by cascades of interactions, hence the occasionally used name shower counter for a calorimeter. Calorimeters a ...
... Q) Calorimeter:A composite detector using total absorption of particles to measure the energy and position of incident particles or jets. In the process of absorption showers are generated by cascades of interactions, hence the occasionally used name shower counter for a calorimeter. Calorimeters a ...
PHY313 - CEI544 The Mystery of Matter From Quarks to the
... gluons which transfer “color” between quarks. There are 8 gluons. • The weak interaction is mediated by the W± and the Z0 bosons. These are VERY massive particles which is why the very weak interaction. has very short range. The EM interaction is mediated by the photon Peter Paul 03/17/05 ...
... gluons which transfer “color” between quarks. There are 8 gluons. • The weak interaction is mediated by the W± and the Z0 bosons. These are VERY massive particles which is why the very weak interaction. has very short range. The EM interaction is mediated by the photon Peter Paul 03/17/05 ...
Figure 3 - Scientific Research Publishing
... William Gilbert formulated over 400 years ago a postulate that can be considered as the main principle of modern natural sciences [1]: All theoretical constructs that claim to be scientific must be verified and confirmed experimentally. Despite of past centuries, this principle has not lost its rele ...
... William Gilbert formulated over 400 years ago a postulate that can be considered as the main principle of modern natural sciences [1]: All theoretical constructs that claim to be scientific must be verified and confirmed experimentally. Despite of past centuries, this principle has not lost its rele ...
Weak interaction Weak interaction, Spontaneous symmetry Breaking
... statistics and the law of conservation of energy. Namely, the possibility that there could exist in the nuclei electrically neutral particles, that I wish to call neutrons, which have spin 1/2 and obey the exclusion principle and which further differ from light quanta in Neutrino at theofpresent tha ...
... statistics and the law of conservation of energy. Namely, the possibility that there could exist in the nuclei electrically neutral particles, that I wish to call neutrons, which have spin 1/2 and obey the exclusion principle and which further differ from light quanta in Neutrino at theofpresent tha ...
pbarp - CERN Indico
... of the product of two electromagnetic currents near the light cone, taking into account constraints from the SLAC deep-inelastic scattering experiments and Regge theory. I was not familiar with most of these concepts, nevertheless I understood from Guido’s presentation that, in the framework of the ...
... of the product of two electromagnetic currents near the light cone, taking into account constraints from the SLAC deep-inelastic scattering experiments and Regge theory. I was not familiar with most of these concepts, nevertheless I understood from Guido’s presentation that, in the framework of the ...
inflation
... • horizon problem – CMBR photons emitted from opposite sides of the sky seem to be in thermal equilibrium, which is not expected by the standard model since these photons did not have time to make contact (one is out of the other’s horizon) ...
... • horizon problem – CMBR photons emitted from opposite sides of the sky seem to be in thermal equilibrium, which is not expected by the standard model since these photons did not have time to make contact (one is out of the other’s horizon) ...
Document
... Heavy quarks in the vacuum and in Gluons should lose more energy the medium (Dokshitzer and and have higher particle Kharzeev (PLB 519 (2001) 199)) the multiplicities due to the color factor radiation at small angles is effect. ...
... Heavy quarks in the vacuum and in Gluons should lose more energy the medium (Dokshitzer and and have higher particle Kharzeev (PLB 519 (2001) 199)) the multiplicities due to the color factor radiation at small angles is effect. ...
Mean Multiplicity of Quark and Gluon Jets as a Function of Opening
... A comparison of the properties of quark and gluon jets has been made by Monte Carlo simulation of the reaction Z → bbg. The jet energy is held fixed for every 5 GeV between 15–30 GeV energies and the mean multiplicity of b-quark and gluon jets are obtained as function of the angle between them. It i ...
... A comparison of the properties of quark and gluon jets has been made by Monte Carlo simulation of the reaction Z → bbg. The jet energy is held fixed for every 5 GeV between 15–30 GeV energies and the mean multiplicity of b-quark and gluon jets are obtained as function of the angle between them. It i ...
Black Hole
... The diagram contains two vertices where the coupling constants appear. The diagram REPRESENTS the exchange of a virtual particle (the photon) between the charged particles that are the sources of the electromagnetic field. ...
... The diagram contains two vertices where the coupling constants appear. The diagram REPRESENTS the exchange of a virtual particle (the photon) between the charged particles that are the sources of the electromagnetic field. ...
Document
... The diagram contains two vertices where the coupling constants appear. The diagram REPRESENTS the exchange of a virtual particle (the photon) between the charged particles that are the sources of the electromagnetic field. ...
... The diagram contains two vertices where the coupling constants appear. The diagram REPRESENTS the exchange of a virtual particle (the photon) between the charged particles that are the sources of the electromagnetic field. ...
Chapter 8, Lecture 1
... At the end of their lives, nucleosynthesis in stars stops and the stars collapse to white dwarfs. In white dwarfs, the gravitational force is balanced by “electron degeneracy”. [According to the Pauli-exclusion principle, no two electrons (fermions) can occupy the same quantum mechanical state.] If ...
... At the end of their lives, nucleosynthesis in stars stops and the stars collapse to white dwarfs. In white dwarfs, the gravitational force is balanced by “electron degeneracy”. [According to the Pauli-exclusion principle, no two electrons (fermions) can occupy the same quantum mechanical state.] If ...
Elementary Particles and the Forces of Nature
... how small a length scale we can look. These particle energies are usually measured in units called electron volts. (In Thomson’s experiments with electrons, we saw that he used an electric field to accelerate the electrons. The energy that an electron gains from an electric field of one volt is what ...
... how small a length scale we can look. These particle energies are usually measured in units called electron volts. (In Thomson’s experiments with electrons, we saw that he used an electric field to accelerate the electrons. The energy that an electron gains from an electric field of one volt is what ...
ppt file - Physics - Kent State University
... of states into ρ oscillations, in which the two nonstrange quarks oscillate, and Λ oscillations, in which the strange quark oscillates against the nonstrange pair. • The nonstrange ρ oscillations trivially decouple from KN and related channels in the single-quark transition ...
... of states into ρ oscillations, in which the two nonstrange quarks oscillate, and Λ oscillations, in which the strange quark oscillates against the nonstrange pair. • The nonstrange ρ oscillations trivially decouple from KN and related channels in the single-quark transition ...
Quark
A quark (/ˈkwɔrk/ or /ˈkwɑrk/) is an elementary particle and a fundamental constituent of matter. Quarks combine to form composite particles called hadrons, the most stable of which are protons and neutrons, the components of atomic nuclei. Due to a phenomenon known as color confinement, quarks are never directly observed or found in isolation; they can be found only within hadrons, such as baryons (of which protons and neutrons are examples), and mesons. For this reason, much of what is known about quarks has been drawn from observations of the hadrons themselves.Quarks have various intrinsic properties, including electric charge, mass, color charge and spin. Quarks are the only elementary particles in the Standard Model of particle physics to experience all four fundamental interactions, also known as fundamental forces (electromagnetism, gravitation, strong interaction, and weak interaction), as well as the only known particles whose electric charges are not integer multiples of the elementary charge.There are six types of quarks, known as flavors: up, down, strange, charm, top, and bottom. Up and down quarks have the lowest masses of all quarks. The heavier quarks rapidly change into up and down quarks through a process of particle decay: the transformation from a higher mass state to a lower mass state. Because of this, up and down quarks are generally stable and the most common in the universe, whereas strange, charm, bottom, and top quarks can only be produced in high energy collisions (such as those involving cosmic rays and in particle accelerators). For every quark flavor there is a corresponding type of antiparticle, known as an antiquark, that differs from the quark only in that some of its properties have equal magnitude but opposite sign.The quark model was independently proposed by physicists Murray Gell-Mann and George Zweig in 1964. Quarks were introduced as parts of an ordering scheme for hadrons, and there was little evidence for their physical existence until deep inelastic scattering experiments at the Stanford Linear Accelerator Center in 1968. Accelerator experiments have provided evidence for all six flavors. The top quark was the last to be discovered at Fermilab in 1995.