HIC: ALICE, The Wonderland more or less personal view
... – High p_t or high p_z (most likely valence quarks) quickly escape from the system – Color charge unbalance in the system – Substantial color force will exert each other – We need to look at the ep collision if there is explosion!! ...
... – High p_t or high p_z (most likely valence quarks) quickly escape from the system – Color charge unbalance in the system – Substantial color force will exert each other – We need to look at the ep collision if there is explosion!! ...
Lectures on effective field theory - Research Group in Theoretical
... The basic idea behind effective field theory (EFT) is the observation that the nonanalytic parts of scattering amplitudes are due to intermediate process where physical particles can exist on shell (that is, kinematics are such that internal propagators 1/(p2 − m2 + i) in Feynman diagrams can diver ...
... The basic idea behind effective field theory (EFT) is the observation that the nonanalytic parts of scattering amplitudes are due to intermediate process where physical particles can exist on shell (that is, kinematics are such that internal propagators 1/(p2 − m2 + i) in Feynman diagrams can diver ...
The Radial Equation
... that of scattering a variety of partic1es by a variety of targets. In some sense, spectroscopy is also a form of "scattering." The atom in the ground state is ,excited by some projectile (it may be electrons in a discharge tu be or collisions . with other target particles, as in heating up of the ga ...
... that of scattering a variety of partic1es by a variety of targets. In some sense, spectroscopy is also a form of "scattering." The atom in the ground state is ,excited by some projectile (it may be electrons in a discharge tu be or collisions . with other target particles, as in heating up of the ga ...
6. String Interactions
... The discussion above needs amendment if we turn on gravity. Gravity is a gauge theory and the gauge symmetries are diffeomorphisms. In a gauge theory, only gauge invariant observables make sense. But the correlation function (6.1) is not gauge invariant because its value changes under a diffeomorph ...
... The discussion above needs amendment if we turn on gravity. Gravity is a gauge theory and the gauge symmetries are diffeomorphisms. In a gauge theory, only gauge invariant observables make sense. But the correlation function (6.1) is not gauge invariant because its value changes under a diffeomorph ...
September 1976 - SLAC
... In 1961 Frank showed up on the Peninsula scene, where he worked as a designer for Lenkurt Electric, for Varian Associates, and for IBM. While at IBM he coined the now-legendary description of his "one-cell brain." But, taking no chances that it might eventually wear out, Frank talked his IBM supervi ...
... In 1961 Frank showed up on the Peninsula scene, where he worked as a designer for Lenkurt Electric, for Varian Associates, and for IBM. While at IBM he coined the now-legendary description of his "one-cell brain." But, taking no chances that it might eventually wear out, Frank talked his IBM supervi ...
The Weak Interaction
... In the Electromagnetic interaction the photons couple to charges and the photon carries no charge. But in the Strong interaction gluons couple to colour charges (RGB) and the gluon carries colour information. e.g. ...
... In the Electromagnetic interaction the photons couple to charges and the photon carries no charge. But in the Strong interaction gluons couple to colour charges (RGB) and the gluon carries colour information. e.g. ...
ibm_seminar - Stony Brook University
... massless ‘gluons’ which couple to ‘color charge’ carried by quarks. Unlike QED, the gluons have color themselves, so couple also to other gluons. Each quark flavor (u,d,s) comes in 3 distinct colors (R, G, B). Observed mesons and baryons are color-less combinations with antisymmetric color wavefns ( ...
... massless ‘gluons’ which couple to ‘color charge’ carried by quarks. Unlike QED, the gluons have color themselves, so couple also to other gluons. Each quark flavor (u,d,s) comes in 3 distinct colors (R, G, B). Observed mesons and baryons are color-less combinations with antisymmetric color wavefns ( ...
Thermodynamics of the high temperature Quark-Gluon - IPhT
... Because of the asymptotic freedom of QCD, one expects matter at high temperature and/or high density to become simple: a weakly interacting quark-gluon plasma. The most compelling theoretical evidences for the existence of such a quark-gluon plasma are coming from lattice gauge calculations (for rec ...
... Because of the asymptotic freedom of QCD, one expects matter at high temperature and/or high density to become simple: a weakly interacting quark-gluon plasma. The most compelling theoretical evidences for the existence of such a quark-gluon plasma are coming from lattice gauge calculations (for rec ...
msc_f_phy_p3u2
... the positive charged particle; it implies that there exists in the nucleus a forces which are strong enough to overpower the coulomb repulsion and hold the nucleons together. The forces which hold the nucleons together are commonly called nuclear forces and are short range forces as it is evident fr ...
... the positive charged particle; it implies that there exists in the nucleus a forces which are strong enough to overpower the coulomb repulsion and hold the nucleons together. The forces which hold the nucleons together are commonly called nuclear forces and are short range forces as it is evident fr ...
Physics at NICA , the view from LPI RAS
... • Remarks on “elementary” particle source its generalization on high density case. • Rescattering of “elementary” sources and transverse and longitudinal spectra in pA and AB collisions. • Event-by-event fluctuations of transverse momenta Is the produced dense strongly interacting matter homogeneous ...
... • Remarks on “elementary” particle source its generalization on high density case. • Rescattering of “elementary” sources and transverse and longitudinal spectra in pA and AB collisions. • Event-by-event fluctuations of transverse momenta Is the produced dense strongly interacting matter homogeneous ...
WIMP-Nucleus Scattering
... Opposite signs between the two diagrams could have a significant effect on detection rates from different target nuclei because of cancellations that would occur for one nucleus and not another. ...
... Opposite signs between the two diagrams could have a significant effect on detection rates from different target nuclei because of cancellations that would occur for one nucleus and not another. ...
Elastic scattering and the optical model
... Elastic scattering – (n, n), (p, p), (α ,α), ... Inelastic Scattering -- (n, n"), (p, p"), (α ,α"), ... Knockout – (n, 2n), (n, np), (p, pn), (p, 2p), ... Stripping – (d, p), (d, n), (t, d), ... Pickup – (p, d), (n, d), (d, t), ... Charge exchange – (n,p), (p,n), (t,3He), (3He, t), ... The optical m ...
... Elastic scattering – (n, n), (p, p), (α ,α), ... Inelastic Scattering -- (n, n"), (p, p"), (α ,α"), ... Knockout – (n, 2n), (n, np), (p, pn), (p, 2p), ... Stripping – (d, p), (d, n), (t, d), ... Pickup – (p, d), (n, d), (d, t), ... Charge exchange – (n,p), (p,n), (t,3He), (3He, t), ... The optical m ...
Graviton physics - ScholarWorks@UMass Amherst
... probe B[2]. However, despite this obvious parallel, examination of quantum mechanics texts reveals that (with one exception[3]) the case of graviton interactions is not discussed in any detail. There are at least three reasons for this situation: i) the graviton is a spin-two particle, as opposed to ...
... probe B[2]. However, despite this obvious parallel, examination of quantum mechanics texts reveals that (with one exception[3]) the case of graviton interactions is not discussed in any detail. There are at least three reasons for this situation: i) the graviton is a spin-two particle, as opposed to ...
R-parity Violating SUSY
... o Branching ratios & direct CP asymmetry in B to pi pi, pi K. RPV couplings can give a possible solution to the puzzles. Obtain the ranges of RPV couplings, but these are very narrow. The allowed spaces constrained by B to PP are consistent with these by B to VV decays. ...
... o Branching ratios & direct CP asymmetry in B to pi pi, pi K. RPV couplings can give a possible solution to the puzzles. Obtain the ranges of RPV couplings, but these are very narrow. The allowed spaces constrained by B to PP are consistent with these by B to VV decays. ...
t - H1
... Conclusions Inclusive diffraction, exclusive diffractive VM and jet production can be successfully derived from the measured F2 (Dipole Model with u. gluon densities obtained from F2 ) Detailed VM-data from HERA should allow to pin down ...
... Conclusions Inclusive diffraction, exclusive diffractive VM and jet production can be successfully derived from the measured F2 (Dipole Model with u. gluon densities obtained from F2 ) Detailed VM-data from HERA should allow to pin down ...
Scattering theory - Theory of Condensed Matter
... The partial wave expansion is tailored to the consideration of low-energy scattering processes. At higher energies, when many partial waves contribute, the expansion is not very convenient and it is helpful to develop a different methodology. By developing a general expansion of the scattering wavef ...
... The partial wave expansion is tailored to the consideration of low-energy scattering processes. At higher energies, when many partial waves contribute, the expansion is not very convenient and it is helpful to develop a different methodology. By developing a general expansion of the scattering wavef ...
Particle Physics Part III Major Option 2008
... Anti-symmetric colour wave-function Allowed Hadrons i.e. the possible colour singlet states Mesons and Baryons Exotic states, e.g. pentaquarks To date all confirmed hadrons are either mesons or baryons. However, some recent (but not entirely convincing) “evidence” for pentaquark states Prof. M.A. Th ...
... Anti-symmetric colour wave-function Allowed Hadrons i.e. the possible colour singlet states Mesons and Baryons Exotic states, e.g. pentaquarks To date all confirmed hadrons are either mesons or baryons. However, some recent (but not entirely convincing) “evidence” for pentaquark states Prof. M.A. Th ...
Harmony of Scattering Amplitudes: From gauge theory
... This talk will present some recent developments in understanding scattering amplitudes in gauge and gravity theories. • Harmony: Examples of remarkable relations in gauge and gravity theories. • QCD: Brief look at applications of new ideas to LHC physics • Supersymmetric gauge theory: resummation of ...
... This talk will present some recent developments in understanding scattering amplitudes in gauge and gravity theories. • Harmony: Examples of remarkable relations in gauge and gravity theories. • QCD: Brief look at applications of new ideas to LHC physics • Supersymmetric gauge theory: resummation of ...
ModPhys III Lecture 5 - University of San Francisco
... In QCD the virtual quark-antiquark pairstend to screen the color charge. However, QCD has an additional wrinkle: its force-carrying particles, the gluons, themselves carry color charge, and in a different manner. Each gluon carries both a color charge and an anti-color magnetic moment. The net effec ...
... In QCD the virtual quark-antiquark pairstend to screen the color charge. However, QCD has an additional wrinkle: its force-carrying particles, the gluons, themselves carry color charge, and in a different manner. Each gluon carries both a color charge and an anti-color magnetic moment. The net effec ...
Review on Nucleon Spin Structure
... operator, which is the Pauli spin, has been calculated in the non-relativistic quark models. • The second term, the relativistic correction, has not been included in the non-relativistic quark model calculations. The relativistic quark model does include this correction and it reduces the quark spin ...
... operator, which is the Pauli spin, has been calculated in the non-relativistic quark models. • The second term, the relativistic correction, has not been included in the non-relativistic quark model calculations. The relativistic quark model does include this correction and it reduces the quark spin ...
Visibility of interference in Feynman`s atomic light microscope
... The function I (x, y), evaluated by numerical integration of the function under the integral sign in (3.6) with Mandel distribution (4.6), is graphically presented in figure 3 for six values of the slits’ distance d, keeping the slits’ width constant. One clearly sees that I (x, y) is a quasi-period ...
... The function I (x, y), evaluated by numerical integration of the function under the integral sign in (3.6) with Mandel distribution (4.6), is graphically presented in figure 3 for six values of the slits’ distance d, keeping the slits’ width constant. One clearly sees that I (x, y) is a quasi-period ...
Problems in nucleon structure study
... E. Leader suggested to use the gauge variant canonical momentum and angular momentum operators as the physical one and tried to prove that the matrix elements of physical states of gauge dependent operator are gauge invariant. • His argument is based on F. Strocchi and A.S. Wightman’s theory and thi ...
... E. Leader suggested to use the gauge variant canonical momentum and angular momentum operators as the physical one and tried to prove that the matrix elements of physical states of gauge dependent operator are gauge invariant. • His argument is based on F. Strocchi and A.S. Wightman’s theory and thi ...
Coupled-mode theory for general free-space resonant scattering of waves
... almost any free-space wave system. We illustrate it by modeling three well-known resonant scattering systems: scattering of light from spherically symmetric resonant objects, scattering of light from atoms 共resonance fluorescence兲, and quantum-mechanical scattering of neutrons off nuclei. Briefly, t ...
... almost any free-space wave system. We illustrate it by modeling three well-known resonant scattering systems: scattering of light from spherically symmetric resonant objects, scattering of light from atoms 共resonance fluorescence兲, and quantum-mechanical scattering of neutrons off nuclei. Briefly, t ...
Comments on the 2nd order bootstrap relation
... is much weaker than that of (19). For this reason we shall call it a weak bootstrap contition, leaving the definition of the strong bootstrap condition for the equations (24) in the LO and (19) in the LO and NLO. Now we come to the second condition, which is that also in the NLO there should be no c ...
... is much weaker than that of (19). For this reason we shall call it a weak bootstrap contition, leaving the definition of the strong bootstrap condition for the equations (24) in the LO and (19) in the LO and NLO. Now we come to the second condition, which is that also in the NLO there should be no c ...