5539-1.pdf
... In order to illustrate our general framework, we will present here an explicit calculation of the σ transform of virtual Compton scattering on the quantum fluctuations of a lepton in QED at one-loop order [12], the same system which gives the Schwinger anomalous moment α/2π . This model has the adva ...
... In order to illustrate our general framework, we will present here an explicit calculation of the σ transform of virtual Compton scattering on the quantum fluctuations of a lepton in QED at one-loop order [12], the same system which gives the Schwinger anomalous moment α/2π . This model has the adva ...
Van der Waals Interaction in QCD
... first part of this thesis will be a description of the main principles of Quantum Chromodynamics, which contains a short mathematical view on strong interactions, as well as an introduction to two basic concepts of Quantum Chromodynamics - Asymptotic Freedom and Confinement. The introduction also co ...
... first part of this thesis will be a description of the main principles of Quantum Chromodynamics, which contains a short mathematical view on strong interactions, as well as an introduction to two basic concepts of Quantum Chromodynamics - Asymptotic Freedom and Confinement. The introduction also co ...
ABSTRACT - University of Richmond
... When a particle triggers a signal in successive layers of the CLAS, we call this an “event.” These events are then grouped by corresponding sectors in momentum and bins. The characteristics which we can ascertain from CLAS such as the velocity, momentum, energy, and scattering angle allow us to id ...
... When a particle triggers a signal in successive layers of the CLAS, we call this an “event.” These events are then grouped by corresponding sectors in momentum and bins. The characteristics which we can ascertain from CLAS such as the velocity, momentum, energy, and scattering angle allow us to id ...
Lecture 2
... found that unlike a particle in classical mechanics we cannot describe the trajectory of an electron. We can however associate a wavefunction with each electron which will tell us the probability amplitude of finding out an electron at a given point in space at a given point in time.This wave functi ...
... found that unlike a particle in classical mechanics we cannot describe the trajectory of an electron. We can however associate a wavefunction with each electron which will tell us the probability amplitude of finding out an electron at a given point in space at a given point in time.This wave functi ...
The potential quark model in theory of resonances
... features such as a simpler and more general framework. • Complex numbers allow to get more than what we insert. • The complex-mass scheme provides a consistent framework for dealing with unstable particles and has been successfully applied to various loop calculations. M.N. Sergeenko >>> Gomel Schoo ...
... features such as a simpler and more general framework. • Complex numbers allow to get more than what we insert. • The complex-mass scheme provides a consistent framework for dealing with unstable particles and has been successfully applied to various loop calculations. M.N. Sergeenko >>> Gomel Schoo ...
quark - IBPhysicsLund
... Outline the concept of strangeness. The strangeness number S of a baryon is related to the number of strange quarks the particle has and is found using the formula S = #Antistrange quarks strangeness S - #strange quarks EXAMPLE: The lambda zero particle (0) is a baryon having the quark combo of ( ...
... Outline the concept of strangeness. The strangeness number S of a baryon is related to the number of strange quarks the particle has and is found using the formula S = #Antistrange quarks strangeness S - #strange quarks EXAMPLE: The lambda zero particle (0) is a baryon having the quark combo of ( ...
PDF Full-text
... • In 1963 [10], Dirac constructed a representation of the (3 + 2) deSitter group using two harmonic oscillators. This deSitter group contains three (3 + 1) Lorentz groups as its subgroups. In each of these papers, Dirac presented the original ingredients which can serve as building blocks for making ...
... • In 1963 [10], Dirac constructed a representation of the (3 + 2) deSitter group using two harmonic oscillators. This deSitter group contains three (3 + 1) Lorentz groups as its subgroups. In each of these papers, Dirac presented the original ingredients which can serve as building blocks for making ...
MSPowerPoint file
... Direct measurements of the strange quark sea could not verify a negative strange polarization. This indicates a SU(3)f flavor symmetry breaking or large contributions from low x. Analysis of gluon spin from inclusive DIS is difficult and ongoing Transversity and Sivers functions are non-zero. ...
... Direct measurements of the strange quark sea could not verify a negative strange polarization. This indicates a SU(3)f flavor symmetry breaking or large contributions from low x. Analysis of gluon spin from inclusive DIS is difficult and ongoing Transversity and Sivers functions are non-zero. ...
the periodic table of elementary particles
... problems in particle physics. There are various approaches to solve the problem. In this paper, the approach is to use a periodic table. The properties of atoms can be expressed by the periodic relationships in the periodic table of the elements. The periodic table of the elements is based on the at ...
... problems in particle physics. There are various approaches to solve the problem. In this paper, the approach is to use a periodic table. The properties of atoms can be expressed by the periodic relationships in the periodic table of the elements. The periodic table of the elements is based on the at ...
841_1.pdf
... and β here is zero in the case where H1 , H3 , and H4 are all equal, and H2 0. Given that the hadronic single helicity flip amplitude seems to persist at high energies in proton carbon scattering [3] it would be most interesting to determine if any of the proton deuteron amplitudes contributing t ...
... and β here is zero in the case where H1 , H3 , and H4 are all equal, and H2 0. Given that the hadronic single helicity flip amplitude seems to persist at high energies in proton carbon scattering [3] it would be most interesting to determine if any of the proton deuteron amplitudes contributing t ...
10 Wave Functions of Lonely Electrons - KSU Physics
... This wave function has a probability different from zero only in a small region. It moves as the electron moves. So, it fits the need for our purposes. All measurements indicate that the electron is a very small object. It is essentially a point in space. So, the “bumps” on the wave functions in Fi ...
... This wave function has a probability different from zero only in a small region. It moves as the electron moves. So, it fits the need for our purposes. All measurements indicate that the electron is a very small object. It is essentially a point in space. So, the “bumps” on the wave functions in Fi ...
Elementary Particles in Physics
... it will decay rapidly; if it does not, the decay will proceed through a channel that may have a strongly suppressed rate, e. g., because it can only be driven by the weak or electromagnetic interactions. The large number of hadrons has led to the universal acceptance of the notion that the hadrons, ...
... it will decay rapidly; if it does not, the decay will proceed through a channel that may have a strongly suppressed rate, e. g., because it can only be driven by the weak or electromagnetic interactions. The large number of hadrons has led to the universal acceptance of the notion that the hadrons, ...
Holographic thermalization of quark gluon plazma
... QGP as a strongly coupled fluid • Conclusion from the RHIC and LHC experiments: appearance of QGP (not a weakly coupled gas of quarks and gluons, but a strongly coupled fluid). • This makes perturbative methods inapplicable • The lattice formulation of QCD does not work, since we have to study real ...
... QGP as a strongly coupled fluid • Conclusion from the RHIC and LHC experiments: appearance of QGP (not a weakly coupled gas of quarks and gluons, but a strongly coupled fluid). • This makes perturbative methods inapplicable • The lattice formulation of QCD does not work, since we have to study real ...
Initial State Parton Evolution beyond the Leading Logarithmic Order
... state parton radiations. However, the leading-logarithmic (LL) order of QCD is insufficient to evaluate these effects. Therefore, the next-to-leading logarithmic (NLL) order contributions should be taken into account. However, the inclusion of the NLL order terms into Monte-Carlo simulations of the ini ...
... state parton radiations. However, the leading-logarithmic (LL) order of QCD is insufficient to evaluate these effects. Therefore, the next-to-leading logarithmic (NLL) order contributions should be taken into account. However, the inclusion of the NLL order terms into Monte-Carlo simulations of the ini ...
Document
... Going Back to the Akmal, Pandharipande, Ravenhall nuclear phase in in fig 11 of APR ( PRC,58, 1804 (1998)) we find that for the APR [A18 + dv +UIX] the central density of a star of 1.8 solar mass is ( n_B ~0.62 /fm^3), very close to the initial density at which the phase transition begins. The reaso ...
... Going Back to the Akmal, Pandharipande, Ravenhall nuclear phase in in fig 11 of APR ( PRC,58, 1804 (1998)) we find that for the APR [A18 + dv +UIX] the central density of a star of 1.8 solar mass is ( n_B ~0.62 /fm^3), very close to the initial density at which the phase transition begins. The reaso ...
QCD Factorization for Semi
... simplification to the collinear factorization Extends to the region where collinear fails Simplifies the kinematics ...
... simplification to the collinear factorization Extends to the region where collinear fails Simplifies the kinematics ...
Physics of the Interaction of Charged Particles with Nuclei
... comprehensive theory which could describe all the experimentally observed properties of particle-nucleus interaction from the first principles. This is a consequence of the complexity of the nucleus as a physical object. Even in case the nucleon-nucleon interaction force would be known, and it would ...
... comprehensive theory which could describe all the experimentally observed properties of particle-nucleus interaction from the first principles. This is a consequence of the complexity of the nucleus as a physical object. Even in case the nucleon-nucleon interaction force would be known, and it would ...
Born approximation - BYU Physics and Astronomy
... A. To develop a formalism where we express the wave function in terms of Green’s functions B. To use Helmholtz equation instead of Schrödinger equation C. To find an approximate expression for when far away from the scattering center for a given potential V D. To express the scattering factor in t ...
... A. To develop a formalism where we express the wave function in terms of Green’s functions B. To use Helmholtz equation instead of Schrödinger equation C. To find an approximate expression for when far away from the scattering center for a given potential V D. To express the scattering factor in t ...
A brief introduction to chiral perturbation theory
... findings there exist at least three fundamental difficulties: i) QCD is written in terms of the ”wrong” degrees of freedom—quarks and gluons—while low energy experiments are performed with hadronic bound states; ii) the theory is non-linear due to gluon self interactions; iii) the theory is one of s ...
... findings there exist at least three fundamental difficulties: i) QCD is written in terms of the ”wrong” degrees of freedom—quarks and gluons—while low energy experiments are performed with hadronic bound states; ii) the theory is non-linear due to gluon self interactions; iii) the theory is one of s ...
APPENDIX C1: PARTIAL WAVE METHOD OF QM SCATTERING
... P0 (cos! ) = 1 , P1 (cos! ) = cos! , P2 (cos! ) = (3cos2 ! !1) / 2 , P3 (cos! ) = (5cos ! ! 3cos! ) / 2 Note that we do not need to use the quantum number m here (by contrast with the Shell Model, but similar to the multipole expansion in electromagnetism). The factors A are amplitudes specifying h ...
... P0 (cos! ) = 1 , P1 (cos! ) = cos! , P2 (cos! ) = (3cos2 ! !1) / 2 , P3 (cos! ) = (5cos ! ! 3cos! ) / 2 Note that we do not need to use the quantum number m here (by contrast with the Shell Model, but similar to the multipole expansion in electromagnetism). The factors A are amplitudes specifying h ...
Efficient and robust analysis of complex scattering data under noise... microwave resonators S. Probst, F. B. Song,
... We analyze the transverse single-spin asymmetry in direct photon production from proton-proton collisions, denoted AγN , within collinear twist-3 factorization. We provide a calculation of the contribution due to quark-gluon-quark correlations in the unpolarized proton as well as summarize previous ...
... We analyze the transverse single-spin asymmetry in direct photon production from proton-proton collisions, denoted AγN , within collinear twist-3 factorization. We provide a calculation of the contribution due to quark-gluon-quark correlations in the unpolarized proton as well as summarize previous ...
Flavor Physics Theory - DESY
... • At high energies (weak scale), the strong coupling is small and we can calculate observables involving quarks perturbatively • At low energies (hadronic scale), quarks are confined into hadrons, and a perturbative expansion in ↵s is not possible. We can use e↵ective field theories to separate thes ...
... • At high energies (weak scale), the strong coupling is small and we can calculate observables involving quarks perturbatively • At low energies (hadronic scale), quarks are confined into hadrons, and a perturbative expansion in ↵s is not possible. We can use e↵ective field theories to separate thes ...
Operational Status and Power Upgrade Prospects of the
... applications determining the twist-2 parton distribution functions at NNLO in the unpolarized case and at NLO in the polarized case and measuring the strong coupling constant α s (MZ2 ) and the charm quark mass mc from the world deep-inelastic scattering data. This survey summarizes main results of ...
... applications determining the twist-2 parton distribution functions at NNLO in the unpolarized case and at NLO in the polarized case and measuring the strong coupling constant α s (MZ2 ) and the charm quark mass mc from the world deep-inelastic scattering data. This survey summarizes main results of ...
bern
... simplifying complicated multi-particle or multi-loop calculations. • QCD: On shell methods are mature enough to attack 6-point problems of interest at the LHC See talks of Britto, Bernicot, Forde, Giele, and Kilgore, Zanderighi ...
... simplifying complicated multi-particle or multi-loop calculations. • QCD: On shell methods are mature enough to attack 6-point problems of interest at the LHC See talks of Britto, Bernicot, Forde, Giele, and Kilgore, Zanderighi ...
Time-dependent Born-series calculations of three-body scattering systems
... there are two bound state solutions, the ground state with a binding energy of –7.790 eV and an excited state with a binding energy of –0.088 eV. Thus, we have 1s→2s excitation and direct ionization of the ground state. The inelastic cross section results at several different incident energies are p ...
... there are two bound state solutions, the ground state with a binding energy of –7.790 eV and an excited state with a binding energy of –0.088 eV. Thus, we have 1s→2s excitation and direct ionization of the ground state. The inelastic cross section results at several different incident energies are p ...