Nuclear shadowing and nuclear momentum conservation in the EMC effect

Li, Guang-Lie; Cao, Z.; Zhong, C.

doi:10.1016/0375-9474(90)90252-h

Cited by 14 publications

(16 citation statements)

References 17 publications

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“…In our present work, we choose one of the successful EMC models usually referred as the extended x−rescaling model [4]. We extend this model to describe the CC and NC structure functions in (anti-)neutrino-nucleus deep inelastic scattering.…”

Section: A Nuclear Parton Distributions In the Extended X−rescaling mentioning

confidence: 99%

“…We extend this model to describe the CC and NC structure functions in (anti-)neutrino-nucleus deep inelastic scattering. The x−rescaling model [4] is based on the fact that in a nucleus the Bjorken variable x of the nucleon structure functions is rescaled due to the binding energy of nucleons in the nuclear environment. In Ref.…”

Section: A Nuclear Parton Distributions In the Extended X−rescaling mentioning

confidence: 99%

“…In Ref. [4] it was found that the universal x−rescaling violates conservation of nuclear momentum. In the extended x−rescaling model this problem is fixed by introducing different x−rescaling parameters for the momentum distributions of valence quarks and sea quarks (gluons)in the nucleon structure function, i.e.,…”

Section: A Nuclear Parton Distributions In the Extended X−rescaling mentioning

confidence: 99%

“…For the x−rescaling parameters of valence quarks, sea quarks and gluons we take the values δ V = 1.026 and δ S = δ G = 0.945 [4]. Actually, only one of these two parameters is free while the other can be determined from the momentum conservation sum rule.…”

Section: A Nuclear Parton Distributions In the Extended X−rescaling mentioning

confidence: 99%

“…For definiteness, in the present work we use a particular nuclear re-scaling model [4]. We make complete estimates of nuclear effects on the ratios R ν(ν) and on the resulting values of sin 2 θ W .…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Nuclear effects on the extraction of sin2θ

Kovalenko¹,

Schmidt²,

Yang³

2002

Physics Letters B

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We study the impact of nuclear effects on the extraction of the weak-mixing angle sin 2 θ W from deep inelastic (anti-)neutrino-nucleus scattering, with special emphasis on the recently announced NuTeV Collaboration 3σ deviation of sin 2 θ W from its standard model value. We have found that nuclear effects, which are very important in electromagnetic deep inelastic scattering (DIS), are quite small in weak charged current DIS. In neutral current DIS processes, which contain the weak mixing angle, we predict that these effects play also an important role and may dramatically affect the value of sin 2 θ W extracted from the experimental data.

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Section: A Nuclear Parton Distributions In the Extended X−rescaling mentioning

confidence: 99%

Section: A Nuclear Parton Distributions In the Extended X−rescaling mentioning

confidence: 99%

Section: A Nuclear Parton Distributions In the Extended X−rescaling mentioning

confidence: 99%

Section: A Nuclear Parton Distributions In the Extended X−rescaling mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Nuclear effects on the extraction of sin2θ

Kovalenko¹,

Schmidt²,

Yang³

2002

Physics Letters B

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The nuclear effect induced by additional parton evolution and recombination in nuclear environment

Yang

1997

Zeitschrift f�r Physik C Particles and Fields

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The relationship between the parton transverse momentum and longitudinal momentum, which is obtained by analysing the hadron tensor in the deep inelastic scattering (DIS) process, indicates that the transverse size of partons in a nucleon is sensitively affected by the effective nucleon mass. The change in this transverse size gives rise to an Additional Parton Evolution (APE) in the nuclear environment refer to the normal QCD parton evolution thus resulting in new parton distributions. The self-consistent integral equations for these new parton distributions are given. Having undergone the normal QCD evolution and the additional evolution in the nuclear environment, the partons with the small x participate in recombination and contribute to the nuclear shadowing effect. The reasonably good descriptions of the nuclear effect of structure functions, nuclear Drell-Yan ratios and nuclear gluon distributions are presented. A quantitative comparison between the APE model and the Q 2 -rescaling model is made.

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Energy loss in nuclear Drell–Yan process

Yang

1998

Eur. Phys. J. C

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By means of the nuclear parton distributions which can be used to provide a good explanation for the EMC effect in the whole x range, we investigate the energy loss effect in nuclear Drell-Yan process. When the cross section of lepton pair production is considered varying with the center-of-mass energy of the nucleon-nucleon collision, we find that the nuclear Drell-Yan(DY) ratio is suppressed due to the energy loss, which balances the overestimate of the DY ratio only in consideration of the effect of nuclear parton distributions.

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Nuclear shadowing and nuclear momentum conservation in the EMC effect

Cited by 14 publications

References 17 publications

Nuclear effects on the extraction of sin2θ

Nuclear effects on the extraction of sin2θ

The nuclear effect induced by additional parton evolution and recombination in nuclear environment

Energy loss in nuclear Drell–Yan process

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