Low-<i>Q</i>scaling, duality, and the EMC effect

Arrington, J.; Ent, R.; Keppel, C.; Mammei, J.; Niculescu, I.

doi:10.1103/physrevc.73.035205

Cited by 49 publications

(126 citation statements)

References 29 publications

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“…While there is a spread in the individual data points, the parametrization describes the bulk of the data at the level of a few percent or better. It is important to note that this parametrization is independent of atomic number A and the energy scale Q 2 [51]; this is in contrast to the results we will derive using the PDFs extracted from the PDFs; in this case a nuclear correction factor for deuterium has been applied (cf., Refs. [9,10]).…”

Section: A Deuteron Corrections For the Fmentioning

confidence: 69%

Nuclear parton distribution functions from neutrino deep inelastic scattering

et al. 2008

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We study nuclear effects in charged current deep inelastic neutrino-iron scattering in the framework of a 2 analysis of parton distribution functions (PDFs). We extract a set of iron PDFs and show that under reasonable assumptions it is possible to constrain the valence, light sea, and strange quark distributions. Our iron PDFs are used to compute x Bj -dependent and Q 2 -dependent nuclear correction factors for iron structure functions which are required in global analyses of free nucleon PDFs. We compare our results with nuclear correction factors from neutrino-nucleus scattering models and correction factors for ' -iron scattering. We find that, except for very high x Bj , our correction factors differ in both shape and magnitude from the correction factors of the models and charged-lepton scattering.

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Section: A Deuteron Corrections For the Fmentioning

confidence: 69%

Nuclear parton distribution functions from neutrino deep inelastic scattering

et al. 2008

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“…For the calculation of nuclear pion distributions in our model see Sec. V C. The isovector component should vanish in isoscalar nuclei with Z = N. 13 However, for a generic nucleus with different number of protons and neutrons both the isoscalar 13 It should be remarked that this statement applies to nuclear states with the total nuclear isospin 0. If higher-isospin states are present for a Z = N nucleus, then the isovector distribution q 1/A may be non-zero.…”

Section: Nuclear Convolutionmentioning

confidence: 99%

“…The main experimental information on nuclear structure functions comes from chargedlepton scattering DIS experiments performed at CERN [2,3,4,5,6,7,8], SLAC [9,10], FNAL [11,12] and recently at JLab [13,23]. The measurements usually refer to the ratio R 2 of the structure function F 2 of two nuclei (usually a complex nucleus to deuterium).…”

Section: Introductionmentioning

confidence: 99%

Global study of nuclear structure functions

Kulagin¹,

Petti²

2006

Nuclear Physics A

270

804

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We present the results of a phenomenological study of unpolarized nuclear structure functions for a wide kinematical region of x and Q 2 . As a basis of our phenomenology we develop a model which takes into account a number of different nuclear effects including nuclear shadowing, Fermi motion and binding, nuclear pion excess and off-shell correction to bound nucleon structure functions. Within this approach we perform a statistical analysis of available data on the ratio of the nuclear structure functions F 2 for different nuclei in the range from the deuteron to the lead. We express the off-shell effect and the effective scattering amplitude describing nuclear shadowing in terms of few parameters which are common to all nuclei and have a clear physical interpretation. The parameters are then extracted from statistical analysis of data. As a result, we obtain an excellent overall agreement between our calculations and data in the entire kinematical region of x and Q 2 . We discuss a number of applications of our model which include the calculation of the deuteron structure functions, nuclear valence and sea quark distributions and nuclear structure functions for neutrino charged-current scattering. * kulagin@ms2.inr.ac.ru † Roberto.Petti@cern.ch

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“…An extraction [7] of the structure function ratio was performed at Jefferson Laboratory using data from an earlier experiment [27]. These data provided an interesting measurement of the EMC ratio in the resonance region (Q 2 4 4(GeV/c) 2 , 1.2 < W 2 < 3(GeV/c) 2 ) for carbon, iron, and gold.…”

Section: Jefferson Laboratorymentioning

confidence: 99%

Precise Measurement of the Nuclear Dependence of Structure Functions in Light Nuclei

Seely

2006

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The EMC effect has been with us for over 20 years. During this time, the nuclear dependence of the structure functions, and therefore the underlying quark distributions, has been studied with much success. However, the bulk of the experimental effort has been to measure the effect in heavy nuclei where it has the same zBj dependence and differs only in magnitude. Calculations predict large differences in both the magnitude and zBj-dependence of the EMC effect in 3 He and 4He and precise measurements of the EMC effect in these nuclei could be used to distinguish between existing models. E03-103 measured the inclusive electron scattering cross-section on 1 H, 2 H, 3 He, and 4He, as well as the heavier targets Be, C, Cu, and Au. This thesis describes the experiment in detail and presents results for 3 He, 4He, and carbon. These data provide the first measurement of the EMC effect in 3 He above xBj > 0.4, and improve upon the existing measurement of the effect in 4He.

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Low-Qscaling, duality, and the EMC effect

Cited by 49 publications

References 29 publications

Nuclear parton distribution functions from neutrino deep inelastic scattering

Nuclear parton distribution functions from neutrino deep inelastic scattering

Global study of nuclear structure functions

Precise Measurement of the Nuclear Dependence of Structure Functions in Light Nuclei

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