Strong CP violation in hot QCD: from heavy ion collisions to cosmology
... Consider the flavor singlet current It is not conserved even in the m -> 0 limit due to quantum effects: ...
... Consider the flavor singlet current It is not conserved even in the m -> 0 limit due to quantum effects: ...
Lattice QCD in Mainland China: Status and Perspectives
... The masses of 2P charmonium states obtained in this work are 3.798( 70), 3.827(50), and 3.799(60) for 0++, 1++ and 1+- states, respectively. Given 1++ for X(3872), 2P(1++) is consistent with X(3872) in mass. Masses of hybrid charmonia with exotic quantum numbers can be derived more soundly, since th ...
... The masses of 2P charmonium states obtained in this work are 3.798( 70), 3.827(50), and 3.799(60) for 0++, 1++ and 1+- states, respectively. Given 1++ for X(3872), 2P(1++) is consistent with X(3872) in mass. Masses of hybrid charmonia with exotic quantum numbers can be derived more soundly, since th ...
Student Colloquium at WSU (Fall 2006) (ppt-format)
... collision = string of energy (string tension) i.e. dynamical quark field which fragments into hadrons when string tension becomes too large. Describes e+e- and p-pbar and p-p collisions well. Hadronization in medium (i.e. during universe expansion) could be different because medium might affect the ...
... collision = string of energy (string tension) i.e. dynamical quark field which fragments into hadrons when string tension becomes too large. Describes e+e- and p-pbar and p-p collisions well. Hadronization in medium (i.e. during universe expansion) could be different because medium might affect the ...
heavyions - Indico
... If you think this is the end of the story, then heavy ion physics does not belong to particle physics. Yet heavy ion physics belongs to fundamental physics, in the sense that is allows us to study experimentally new phenomena which are interesting from the point of view of theory. Interaction betwee ...
... If you think this is the end of the story, then heavy ion physics does not belong to particle physics. Yet heavy ion physics belongs to fundamental physics, in the sense that is allows us to study experimentally new phenomena which are interesting from the point of view of theory. Interaction betwee ...
Advances in Effective Field Theories
... Chiral effective 7ield theory for dark matter direct detection Martin Hoferichter University of Washington ...
... Chiral effective 7ield theory for dark matter direct detection Martin Hoferichter University of Washington ...
BARC_Rchd_2010.pdf
... understanding the deepest inner workings of matter, space and time and by astronomers in understanding the universe as a whole as well as the objects within it have bought these scientists together in new ways. The questions now being asked about the universe at its two extremes The very large T ...
... understanding the deepest inner workings of matter, space and time and by astronomers in understanding the universe as a whole as well as the objects within it have bought these scientists together in new ways. The questions now being asked about the universe at its two extremes The very large T ...
Substantiation of Meson mass quantization from phenomenological
... fashion, K meson is 7Q that is seven times the mass quantum Q. The other mesonic resonances which are exact multiple of 70 are:1)(770) 2)a0(980) 3)2(2100) 4)a6(2450) 5)K1(1400) 6)K2(1820) etc. The subsistence of the 70 MeV boson was also stemmed from the mass of the classical Dirac Magnetic Monopo ...
... fashion, K meson is 7Q that is seven times the mass quantum Q. The other mesonic resonances which are exact multiple of 70 are:1)(770) 2)a0(980) 3)2(2100) 4)a6(2450) 5)K1(1400) 6)K2(1820) etc. The subsistence of the 70 MeV boson was also stemmed from the mass of the classical Dirac Magnetic Monopo ...
e - National Centre for Physics
... The scattering crossection is the product of Rutherford scattering for a point particle multiplied by form factors F(Q2 ) and G(Q2 ) which are functions of virtual photon mass Q2 . These form factors are related roughly to average shape of a proton. For a particle with no structure the crossection ...
... The scattering crossection is the product of Rutherford scattering for a point particle multiplied by form factors F(Q2 ) and G(Q2 ) which are functions of virtual photon mass Q2 . These form factors are related roughly to average shape of a proton. For a particle with no structure the crossection ...
PDF Version
... particles other than neutrons—protons, in particular—may also be present in the neutron star because the exclusion principle on neutron does not apply to protons. Protons have positive charge, so neutron stars also need as many negatively charged particles to neutralize the proton charges. “If the i ...
... particles other than neutrons—protons, in particular—may also be present in the neutron star because the exclusion principle on neutron does not apply to protons. Protons have positive charge, so neutron stars also need as many negatively charged particles to neutralize the proton charges. “If the i ...
Calculation of the nucleon axial charge in lattice QCD
... known as gluons. The interactions between quarks and gluons are sufficiently strong to bind them into bound states such as protons, neutrons, and pions. This phenomenon not only gives these bound states a rich and detailed structure but also makes pencil-and-paper calculations of many properties of ...
... known as gluons. The interactions between quarks and gluons are sufficiently strong to bind them into bound states such as protons, neutrons, and pions. This phenomenon not only gives these bound states a rich and detailed structure but also makes pencil-and-paper calculations of many properties of ...
Electron-Positron Scattering
... To associate each diagram with an actual formula for the corresponding amplitude, we use what are called the Feynman rules. The rules tell us to write a brief formula for each part of a diagram (each external line, each internal line, and each vertex), then multiply these expressions together to obt ...
... To associate each diagram with an actual formula for the corresponding amplitude, we use what are called the Feynman rules. The rules tell us to write a brief formula for each part of a diagram (each external line, each internal line, and each vertex), then multiply these expressions together to obt ...
ParticleZoo
... The quark model represents a relatively simple picture of the internal structure of subatomic particles and makes predictions of their production and decay. It uses a minimum of adjusted quark parameters and has great predictive power, e.g., for the composite-particle masses, magnetic moments, and l ...
... The quark model represents a relatively simple picture of the internal structure of subatomic particles and makes predictions of their production and decay. It uses a minimum of adjusted quark parameters and has great predictive power, e.g., for the composite-particle masses, magnetic moments, and l ...
Spin Azimuthal Asymmetries inSemi-Inclusive DIS at
... SSA are sensitive to the orbital momentum of quarks. provide a window to the physics of partonic final and initial state interactions model calculations indicate that SSA are not affected significantly by a wide range of corrections. Good agreement in SSAs measured in a wide energy range in elec ...
... SSA are sensitive to the orbital momentum of quarks. provide a window to the physics of partonic final and initial state interactions model calculations indicate that SSA are not affected significantly by a wide range of corrections. Good agreement in SSAs measured in a wide energy range in elec ...
Kovchegov2 - Institute for Nuclear Theory
... Start with N particles in the proton’s wave function. As we increase the energy a new particle can be emitted by either one of the N particles. The number of newly emitted particles is proportional to N. ...
... Start with N particles in the proton’s wave function. As we increase the energy a new particle can be emitted by either one of the N particles. The number of newly emitted particles is proportional to N. ...
Latest Lattice Results for Baryon Spectroscopy
... • Major progress at reliable determinations of the single-particle spectrum, ...
... • Major progress at reliable determinations of the single-particle spectrum, ...
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) ...
The Strong Interaction
... In recent investigations with the photographic method, it has been shown that slow charged particles of small mass, present as a component of the cosmic radiation at high altitudes, can enter nuclei and produce disintegrations with the emission of heavy particles. It is convenient to apply the term ...
... In recent investigations with the photographic method, it has been shown that slow charged particles of small mass, present as a component of the cosmic radiation at high altitudes, can enter nuclei and produce disintegrations with the emission of heavy particles. It is convenient to apply the term ...
Slide 1
... Dynamic quark models of hadrons composed of quasifree colored quarks a) Hadron form factors The introduction of colored quarks, representing physical fundamental particles, paved the way for the dynamic description of hadrons. The main obstacle, here, was the absence of quarks in a free state. Alth ...
... Dynamic quark models of hadrons composed of quasifree colored quarks a) Hadron form factors The introduction of colored quarks, representing physical fundamental particles, paved the way for the dynamic description of hadrons. The main obstacle, here, was the absence of quarks in a free state. Alth ...
Why is the proton mass interesting?
... parton distribution, since it is the matrix element of a twist-2 operator. ...
... parton distribution, since it is the matrix element of a twist-2 operator. ...
QCD
... – Demonstrates that we have the same scale for quark and gluon jets Use top quark decays as a final check that we have the energy scale right – Is m(t) = 175 and m(W) = 80? If not, fix it! Note that most of the work isn’t in getting the jet energy scale right. It’s in convincing ourselves that we ...
... – Demonstrates that we have the same scale for quark and gluon jets Use top quark decays as a final check that we have the energy scale right – Is m(t) = 175 and m(W) = 80? If not, fix it! Note that most of the work isn’t in getting the jet energy scale right. It’s in convincing ourselves that we ...