Quark-hadron duality in a relativistic, confining model

Jeschonnek, Sabine; Orden, J. W. Van

doi:10.1103/physrevd.65.094038

Cited by 29 publications

(35 citation statements)

References 41 publications

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“…At the Jefferson Laboratory a similar question is studied; when, i.e., at what momentum transfer, does a photon couple to a full hadron and when to an individual quark? Models of the quark/hadron duality have provided insight on how descriptions in terms of hadron degrees of freedom can be equivalent to descriptions in terms of quark coordinates [27]. Here we are interested in nucleon/nuclear duality, that is, how can nuclear models incorporate the main features of microscopic nucleon descriptions?…”

Section: Introductionmentioning

confidence: 99%

Neutrino-“pasta” scattering: The opacity of nonuniform neutron-rich matter

2004

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Neutron-rich matter at subnuclear densities may involve complex structures displaying a variety of shapes, such as spherical, slablike, and/or rodlike shapes. These phases of the nuclear pasta are expected to exist in the crust of neutron stars and in core-collapse supernovae. The dynamics of core-collapse supernovae is very sensitive to the interactions between neutrinos and nucleons/nuclei. Indeed, neutrino excitation of the low-energy modes of the pasta may allow for a significant energy transfer to the nuclear medium, thereby reviving the stalled supernovae shock. The linear response of the nuclear pasta to neutrinos is modeled via a simple semi-classical simulation. The transport mean-free path for µ and τ neutrinos (and antineutrinos) is expressed in terms of the static structure factor of the pasta, which is evaluated using Metropolis Monte Carlo simulations.

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Section: Introductionmentioning

confidence: 99%

Neutrino-“pasta” scattering: The opacity of nonuniform neutron-rich matter

2004

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“…The quark-hadron duality of the nucleon structure function F 2 for different targets, like proton, deuteron or light complex nuclei, has been carefully analyzed by Ricco et al and by Simula et al [8][9][10]. So far, many interesting studies of the quark-hadron duality have been published [8][9][10][11][12][13][14][15][16][17][18] in the recent years. For example, Refs.…”

Section: Introductionmentioning

confidence: 99%

An analysis of quark–hadron dualities in proton spin structure functions

Dong

2006

Nuclear Physics A

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“…Let me now turn to one particular model, which was introduced in 23,24 . The approach in this work was to construct a model with just a few underlying basic assumptions, which could be extended to the more realistic case.…”

Section: Search For the Origins Of Dualitymentioning

confidence: 99%

“…Theoretical efforts can be divided into two categories: refinement of the data analysis, e.g. use of various scaling variables, Cornwall-Norton vs Nachtmann moments, target mass corrections, averaging 21,14,22 , and modelling 23,24,25,26 . I will focus on the latter for the rest of my talk.…”

Section: Search For the Origins Of Dualitymentioning

confidence: 99%

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Quark-Hadron Duality

Jeschonnek

Orden

2003

Baryons 2002

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Quark-hadron duality and its potential applications are discussed. We focus on theoretical efforts to model duality.1 What is Duality?In general, duality implies a situation in which two different languages give an accurate description of Nature. While one may be more convenient than the other in certain situations, both are correct. If we are interested in hadronic reactions, the two relevant pictures are the quark-gluon picture and the hadronic picture. In principle, we can describe any hadronic reaction in terms of quarks and gluons, by solving Quantum Chromodynamics (QCD). While this statement is obvious, it rarely has practical value, since in most cases we can neither perform nor interpret a full QCD calculation. In general, we also cannot perform a complete hadronic calculation. We will refer to the statement that, if one could perform and interpret the calculations, it would not matter at all which set of states -hadronic states or quark-gluon states -was used, as "degrees of freedom" duality.However, there are cases where another, more practical form of duality applies: for some reactions, in a certain kinematic regime, properly averaged hadronic observables can be described by perturbative QCD (pQCD). This statement is much more practical than the "degrees of freedom" duality introduced above. In contrast to full QCD, pQCD calculations can be performed, and in this way, duality can be exploited and applied to many different reactions.Duality in the latter form was first found by Bloom and Gilman in 1970 in inclusive, inelastic electron scattering 1 . Duality in this reaction is therefore commonly referred to as Bloom-Gilman duality. Recently, it was impressively confirmed to high accuracy in measurements carried out at Jefferson Lab 2 .Duality also appears in the semileptonic decay of heavy quarks 3,4 , in the reaction e + e − → hadrons 5 , in dilepton production in heavy ion reactions 6 ,

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Quark-hadron duality in a relativistic, confining model

Cited by 29 publications

References 41 publications

Neutrino-“pasta” scattering: The opacity of nonuniform neutron-rich matter

Neutrino-“pasta” scattering: The opacity of nonuniform neutron-rich matter

An analysis of quark–hadron dualities in proton spin structure functions

Quark-Hadron Duality

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