Pionic bubbles in nuclear matter

Birbrair, B.L.; Gridnev, A.; Solyakin, G.E.

doi:10.1088/0305-4616/10/10/518

Cited by 7 publications

(17 citation statements)

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“…(33) we find σq N ≈ σ qN ≈ 1 3 σ pp ≈ 13 mb at high energy. The remaining scales enter through the cutoffs in g P,R (k 2 ) and Φ(k 2 ), together withs and s 0 which separates high and low energy parts of the quark spectral density (21,22). These parameters are determined by fits to the nucleon structure functions at large Q 2 .…”

Section: B Quark-nucleon Amplitudementioning

confidence: 99%

“…Eq. (50) has frequently been applied in calculations of Fermi-motion and binding corrections [20][21][22][23][24][25][26]. The convolution formalism is also used to evaluate meson cloud effects [47], exchange currents corrections [23,48] etc.…”

Section: B the Large X Region: Convolution Modelmentioning

confidence: 99%

“…In this region of x the virtual photon interacts incoherently with bound nucleons. Model descriptions of nuclear structure functions in the large x > 0.2 region [20][21][22][23][24][25][26][27] (for a review see [8,28]) usually start out from the impulse approximation in which both mechanisms (I) and (II) are taken into account by using a phenomenological nucleon structure function. Results of such calculations show that nuclear binding and Fermi motion are responsible for the observed "old" EMC-effect at large x.…”

Section: Introductionmentioning

confidence: 99%

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Shadowing, binding, and off-shell effects in nuclear deep-inelastic scattering

1994

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We present a unified description of nuclear deep inelastic scattering (DIS) over the whole region 0 < x < 1 of the Bjorken variable. Our approach is based on a relativistically covariant formalism which uses analytical properties of quark correlators. In the laboratory frame it naturally incorporates two mechanisms of DIS: (I) scattering from quarks and antiquarks in the target and (II) production of quark-antiquark pairs followed by interactions with the target. We first calculate structure functions of the free nucleon and develop a model for the quark spectral functions. We show that mechanism (II) is responsible for the sea quark content of the nucleon while mechanism (I) governs the valence part of the nucleon structure functions. We find that the coherent interaction ofqq pairs with nucleons in the nucleus leads to shadowing at small x and discuss this effect in detail. In the large x region DIS takes place mainly on a single nucleon. There we focus on the derivation of the convolution model. We point out that the off-shell properties of the bound nucleon structure function give rise to sizable nuclear effects.

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Section: B Quark-nucleon Amplitudementioning

confidence: 99%

Section: B the Large X Region: Convolution Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Shadowing, binding, and off-shell effects in nuclear deep-inelastic scattering

1994

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“…Ref. [10]), the nuclear structure function can be written as a convolution formula in the longitudinal variables of nuclear dynamics which properly accounts for Nucleon-Nucleon (NN) correlations in the nucleon momentum and removal energy spectra is adopted [11] (see also [2,10]).…”

mentioning

confidence: 99%

“…f A (z) properly includes the flux factor in its definition and it is normalized so as to satisfy baryon number conservation[10,11].…”

mentioning

confidence: 99%

Off-shell corrections and moments of the deep inelastic nuclear structure functions

1998

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We present an improved method of handling off-shell effects in deep inelastic nuclear scattering. With a firm understanding of the effects of the nuclear wavefunction, including these off-shell corrections as well as binding effects and nucleon-nucleon correlations, we can begin to examine the role of QCD in nuclei through an analysis of the moments of the nuclear inelastic structure function F A 2 . Our analysis is aimed on one side at extracting the Q 2 dependence of the moments of the nucleon structure function by using the recent high x world Iron data and by properly subtracting nuclear effects from the perturbative contribution. On the other side we compare quantitatively the behavior of the extracted moments with a simple O(1/Q 2 ) phenomenological form and we determine the mass term for this parametrization.

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Nuclear Equation of State and Thestructure of Neutron Stars

Dieperink

Neck

Dewulf

et al. 2006

NATO Science Series II: Mathematics, Physics and Chemistry

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The hadronic equation of state for a neutron star is discussed with a particular emphasis on the symmetry energy. The results of several microscopic approaches are compared and also a new calculation in terms of the self-consistent Green function method is presented. In addition possible constraints on the symmetry energy coming from empirical information on the neutron skin of finite nuclei are considered.

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Pionic bubbles in nuclear matter

Cited by 7 publications

References 0 publications

Shadowing, binding, and off-shell effects in nuclear deep-inelastic scattering

Shadowing, binding, and off-shell effects in nuclear deep-inelastic scattering

Off-shell corrections and moments of the deep inelastic nuclear structure functions

Nuclear Equation of State and Thestructure of Neutron Stars

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