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... Parton distribution functions Fragmentation functions ..or simply PYTHIA… hep-ex/0305013 S.S. Adler et al. ...
... Parton distribution functions Fragmentation functions ..or simply PYTHIA… hep-ex/0305013 S.S. Adler et al. ...
The RHIC gold rush
... Matter that is made from quarks can exist in a number of different states depending on its temperature and density. The phase transitions between these states are marked by the red line, and density is defined in terms of how much energy is required to add one more baryon to the system. Matter in th ...
... Matter that is made from quarks can exist in a number of different states depending on its temperature and density. The phase transitions between these states are marked by the red line, and density is defined in terms of how much energy is required to add one more baryon to the system. Matter in th ...
Dynamics of Classical Wave Scattering by Small Obstacles
... that are scientifically challenging and technologically important [1]. Electromagnetic and acoustic waves are massless and described by a “classical” wave equation which is second order in the time derivative, whereas “quantum” particle waves are governed by the Schrödinger equation which is first o ...
... that are scientifically challenging and technologically important [1]. Electromagnetic and acoustic waves are massless and described by a “classical” wave equation which is second order in the time derivative, whereas “quantum” particle waves are governed by the Schrödinger equation which is first o ...
スライド 1
... 2. Effective Action from Superstring Amplitude • Corrections in Type II superstring Closed oriented superstring amplitudes can be evaluated by inserting vertex operators of external states on Riemann ...
... 2. Effective Action from Superstring Amplitude • Corrections in Type II superstring Closed oriented superstring amplitudes can be evaluated by inserting vertex operators of external states on Riemann ...
DO Timeline - University of Arizona
... Quarks carry color (RGB) Color is the charge of the strong interaction (SI) Free quarks do not exist? Quarks form bound states through the SI to produce the hadron spectrum of several hundred observed particles These bound states are colorless Phys 450 Structureless and pointlike Spring ...
... Quarks carry color (RGB) Color is the charge of the strong interaction (SI) Free quarks do not exist? Quarks form bound states through the SI to produce the hadron spectrum of several hundred observed particles These bound states are colorless Phys 450 Structureless and pointlike Spring ...
strong interactions of hadrons at high energies - Assets
... V. N. Gribov was one of the creators of high energy elementary particle physics and the founder of the Leningrad school of theoretical physics. This book is based on his lecture course for graduate students. The lectures present a concise, step-by-step construction of the relativistic theory of stro ...
... V. N. Gribov was one of the creators of high energy elementary particle physics and the founder of the Leningrad school of theoretical physics. This book is based on his lecture course for graduate students. The lectures present a concise, step-by-step construction of the relativistic theory of stro ...
From Quantum Mechanics to String Theory
... consider the particle Δ++, made up of three “u” quarks it is a spin 3/2 particle, capable of carrying angular momentum in the z-direction equivalent to all three quarks having spin in the same direction (+++) it looks as if we have three identical quarks, all in the same spin state (u,+) there must ...
... consider the particle Δ++, made up of three “u” quarks it is a spin 3/2 particle, capable of carrying angular momentum in the z-direction equivalent to all three quarks having spin in the same direction (+++) it looks as if we have three identical quarks, all in the same spin state (u,+) there must ...
Some Notes on Field Theory
... Quantum Field Theory is a general technique for dealing with systems with an infinite number of degrees of freedom. Examples are systems of many interacting particles or critical phenomena like second order phase transitions. Here we will concentrate on the scattering of particles, but the general f ...
... Quantum Field Theory is a general technique for dealing with systems with an infinite number of degrees of freedom. Examples are systems of many interacting particles or critical phenomena like second order phase transitions. Here we will concentrate on the scattering of particles, but the general f ...
4 Theory of quantum scattering and chemical reactions
... minima arise when the sign of the dipole matrix element involving the boundstate and the continuum radial wave functions changes, which is only possible when the bound-state radial function has a node. Figure. 4.5 (a) displays the energy dependence of the ground-state wave-functions (Pnl (r)) and th ...
... minima arise when the sign of the dipole matrix element involving the boundstate and the continuum radial wave functions changes, which is only possible when the bound-state radial function has a node. Figure. 4.5 (a) displays the energy dependence of the ground-state wave-functions (Pnl (r)) and th ...
Document
... a different flavour than the other 4 quarks • Quantum numbers cannot be defined by 3 quarks alone. ...
... a different flavour than the other 4 quarks • Quantum numbers cannot be defined by 3 quarks alone. ...
Mixing Transformations in Quantum Field Theory and Neutrino
... theory (QFT) [1, 2], with special attention to the case of neutrino mixing. There are indeed unexpected features in field mixing transformations which, as we will show below, find their origin in the same structure of QFT, in particular in the existence in QFT of infinitely many inequivalent represe ...
... theory (QFT) [1, 2], with special attention to the case of neutrino mixing. There are indeed unexpected features in field mixing transformations which, as we will show below, find their origin in the same structure of QFT, in particular in the existence in QFT of infinitely many inequivalent represe ...
Group-Symmetries and Quarks - USC Department of Physics
... The Group SU(3) • The set of 3×3 matrices with detU = 1 for the group SU(3) • Fundamental representation of SU(3) is a triplet • The color charges of Quark R, G, B form a SU(3) symmetry group. They are denoted by λi, with i = 1,2,…,8. • The diagonal matrices are: ...
... The Group SU(3) • The set of 3×3 matrices with detU = 1 for the group SU(3) • Fundamental representation of SU(3) is a triplet • The color charges of Quark R, G, B form a SU(3) symmetry group. They are denoted by λi, with i = 1,2,…,8. • The diagonal matrices are: ...
INSTITUTE OF NUCLEAR PHYSICS
... process can be regarded as a another interpretation of quantum scattering process, interpretation from the point of view of the classical wave optics. All of the above considerations show that di raction is always present in the scattering experiment, and the only information one can derive from it ...
... process can be regarded as a another interpretation of quantum scattering process, interpretation from the point of view of the classical wave optics. All of the above considerations show that di raction is always present in the scattering experiment, and the only information one can derive from it ...
Triaxial Atomic Nucleus
... the nuclei are structures shaped by very complex quantum phenomena. The dynamics of the processes occurring in nuclei are so fast that observing the them over a sufficiently long period of time reveals them only as a statistically averaged shape. In some cases, they are spherical. Since the 1950s, h ...
... the nuclei are structures shaped by very complex quantum phenomena. The dynamics of the processes occurring in nuclei are so fast that observing the them over a sufficiently long period of time reveals them only as a statistically averaged shape. In some cases, they are spherical. Since the 1950s, h ...
Flavour symmetry -- 50 years after SU(3)
... Isospin is mathematically described by the SU(2) group (analogously to spin). The strength of the strong interaction between any pair of nucleons is the same, independent of whether they are interacting as protons or as neutrons. ...
... Isospin is mathematically described by the SU(2) group (analogously to spin). The strength of the strong interaction between any pair of nucleons is the same, independent of whether they are interacting as protons or as neutrons. ...
Nucleus Bubble Discovered
... excitations in an exotic nucleus Nuclear reactions are among the most important processes that drive our Universe. In our Sun nuclear fusion provides the energy for the sun to radiate. In more violent cosmic events neutron capture reactions are at the origin of the creation of the heavy chemical ele ...
... excitations in an exotic nucleus Nuclear reactions are among the most important processes that drive our Universe. In our Sun nuclear fusion provides the energy for the sun to radiate. In more violent cosmic events neutron capture reactions are at the origin of the creation of the heavy chemical ele ...
Of Quarks and Gluons
... for any real θ between 0 and 2π. The system also has an unstable vacuum state corresponding to φ = 0. This symmetry is called “U (1)” the group of complex phases. It corresponds to a choice of phase of φ. However, once the system falls into one specific stable vacuum state (corresponding to a choice ...
... for any real θ between 0 and 2π. The system also has an unstable vacuum state corresponding to φ = 0. This symmetry is called “U (1)” the group of complex phases. It corresponds to a choice of phase of φ. However, once the system falls into one specific stable vacuum state (corresponding to a choice ...
ENTROPY FOR SU(3) QUARK STATES
... where µq is the quark chemical potential and nq (T ) is quark density distribution function. We may rewrite this equation using the fact that the thermal average of the trace of the energy-momentum tensor is written as the equation of state [5] hΘµµ iT = ǫ(T ) − 3p(T ), ...
... where µq is the quark chemical potential and nq (T ) is quark density distribution function. We may rewrite this equation using the fact that the thermal average of the trace of the energy-momentum tensor is written as the equation of state [5] hΘµµ iT = ǫ(T ) − 3p(T ), ...
Breakdown of NRQCD Factorization
... Solutions for all problems came around 1992-1995. For small v, one can derive from full QCD an effective theory – nonrelativistic QCD(NRQCD)- by expanding v. A power counting of v to determine relative importance of different components. ...
... Solutions for all problems came around 1992-1995. For small v, one can derive from full QCD an effective theory – nonrelativistic QCD(NRQCD)- by expanding v. A power counting of v to determine relative importance of different components. ...
Properties of higher-order Trotter formulas
... complicated than the usual low-order formulation. This has been demonstrated for a version of the Trotter formula which exhibits an increase of the rate of convergence by two orders of magnitude in the discretization parameter. This advantage, however, cannot be readily exploited in Monte Carlo simu ...
... complicated than the usual low-order formulation. This has been demonstrated for a version of the Trotter formula which exhibits an increase of the rate of convergence by two orders of magnitude in the discretization parameter. This advantage, however, cannot be readily exploited in Monte Carlo simu ...
Direct photon production in heavy-ion collisions
... Presented first calculations of heavy meson distribution and fragmentation functions at zero and finite temperature (beyond the point like approximation) There is no universal (T) medium modification of fragmentation functions. Suppression comes from processed that are/emulate energy loss ...
... Presented first calculations of heavy meson distribution and fragmentation functions at zero and finite temperature (beyond the point like approximation) There is no universal (T) medium modification of fragmentation functions. Suppression comes from processed that are/emulate energy loss ...
Constituent Quark Models
... some discrepancies between predictions of the model and experimental results Charm would be conserved in strong and electromagnetic interactions, but not in weak interactions In 1974, a new meson, the J/Ψ was discovered that was shown to be a charm quark and charm antiquark pair ...
... some discrepancies between predictions of the model and experimental results Charm would be conserved in strong and electromagnetic interactions, but not in weak interactions In 1974, a new meson, the J/Ψ was discovered that was shown to be a charm quark and charm antiquark pair ...
Selberg zeta function and trace formula for the BTZ black hole
... [17]). On the other hand, the three-dimensional Bañados, Teitelboim, Zanelli (BTZ) black hole [1], [4], [5], [6], which is a solution of Einstein’s vacuum equation with a negative cosmological constant, has a Euclidean quotient presentation Γ\H3 for an appropriate Γ where, however, the fundamental ...
... [17]). On the other hand, the three-dimensional Bañados, Teitelboim, Zanelli (BTZ) black hole [1], [4], [5], [6], which is a solution of Einstein’s vacuum equation with a negative cosmological constant, has a Euclidean quotient presentation Γ\H3 for an appropriate Γ where, however, the fundamental ...
Review on Nucleon Spin Structure
... I will show that this is not true. After introducing minimum relativistic modification, as usual as in other cases where the relativistic effects are introduced to the non-relativistic models, the DIS measured quark spin can be accomodated in CQM. 2.One has either gauge invariant or non-invariant de ...
... I will show that this is not true. After introducing minimum relativistic modification, as usual as in other cases where the relativistic effects are introduced to the non-relativistic models, the DIS measured quark spin can be accomodated in CQM. 2.One has either gauge invariant or non-invariant de ...
Physics of wave packets
... • Particles of the finite spatial extension are expressed by wave packets in QM and they resemble the particles of CM. However wave packets spread and sometimes spreading becomes large and they are approximated by plane waves and wave packet effects disappear then. When are wave packet effects impor ...
... • Particles of the finite spatial extension are expressed by wave packets in QM and they resemble the particles of CM. However wave packets spread and sometimes spreading becomes large and they are approximated by plane waves and wave packet effects disappear then. When are wave packet effects impor ...