Measurement of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>A</mml:mi></mml:math>dependence of deep-inelastic electron scattering

Gómez, J.; Arnold, R. G.; Bosted, P.; Chang, C. C.; Katramatou, A. T.; Petratos, G. G.; Rahbar, A. A.; Rock, S. E.; Sill, A.; Szalata, Z. M.; Bodek, A.; Giokaris, N.; Sherden, D. J.; Mecking, B. A.; Lombard-Nelsen, R. M.

doi:10.1103/physrevd.49.4348

Cited by 346 publications

(613 citation statements)

References 94 publications

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“…4 which shows the comparison of the EPS09 NLO results for F Sn 2 /F C 2 (left) and for the DY cross section ratio (right) as computed in NLO using the EPS09 nPDFs (filled squares and error bands), and as measured by NMC 95 [25,26] (open symbols with error bars). Right: The same for R A DIS (x, Q 2 ) and SLAC data [24]. From [1].…”

Section: Results From Eps09mentioning

confidence: 97%

Nuclear PDFs at NLO – status report and review of the EPS09 results

2011

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We review the current status of the global DGLAP analysis of nuclear parton distribution functions, nPDFs, focusing on the recent EPS09 analysis [1], whose output, EPS09NLO, is the best-constrained NLO nPDF set on the market. Collinear factorization is found to work very well in the kinematical region studied. With the error sets released in the EPS09 package one can compute how the nPDF-related uncertainties propagate into factorizable nuclear hard-process cross sections. A comparison with the other existing NLO nPDF sets is shown, and the BRAHMS forward-η hadron data from d+Au collisions are discussed in the light of the EPS09 nPDFs and their error sets.

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Section: Results From Eps09mentioning

confidence: 97%

Nuclear PDFs at NLO – status report and review of the EPS09 results

2011

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“…The decreasing values as mass number increases show the quark spin sums are quenched in the nuclear medium and the decrease of g A is also observed in nuclear β decay studies. EMC ratio compared with experimental data SLAC-E139 [12]. strong interaction.…”

Section: Resultsmentioning

confidence: 99%

“…In Fig. 4, SLAC-E139 [12] data for unpolarized structure function ratio averaged over Q 2 is shown for comparison. We observe that the ratio in the polarized case is less than the unpolarized case.…”

Section: Resultsmentioning

confidence: 99%

Polarized EMC effect in the Thermodynamical Bag Model

Ganesamurthy

Sambasivam

2009

Braz. J. Phys.

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We determine the polarized quark distributions and structure functions for nuclear media such as Li 7 and Al 27 by using a phenomenological model known as Thermodynamical Bag Model. The evaluation of nuclear medium modifications to single nucleon structure function discusses the predictions of the polarized EMC effect. The deviation of polarized EMC from unpolarized case shows quenching of polarized quark distributions and proves the significance of this study as adding the spin observables will explore more about medium modification of nuclear structure and the nature of the strong interaction.

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“…In fact, the importance of nuclear effects on the extraction of the neutron structure functions was recognized even much earlier [6]. Recent investigations of nuclear effects on a deuteron mainly emphasize the following three aspects: (1) the EMC effect on the spin-independent deuteron structure function [3,7]; (2) the effects of Fermi motion of nucleons in the deuteron [8,9,10]; (3) depolarization of the nucleons and spindependent effects [11]. In recent work by Burov and Molochkov [7], the EMC effect on a deuteron is analyzed from a relativistic point of view.…”

Section: Introductionmentioning

confidence: 99%

“…Then the neutron structure function F n 2 can be extracted, and the ratio of the deuteron structure function F D 2 to the free nucleon structure function F N 2 = (F p 2 + F n 2 )/2 should read R D/N F = 1. However, Gomez et al [3] found that the deuteron has a significant EMC effect [4], i.e. R D/N F = 1, especially in the region near x ∼ 0.6.…”

Section: Introductionmentioning

confidence: 99%

Nuclear effects on the extraction of neutron structure functions

Schmidt

Yang

2001

Eur. Phys. J. C

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Nuclear effects in light nuclei due to the presence of spin-one isosinglet 6-quark clusters are investigated. The quark distributions of 6-quark clusters are obtained by using a perturbative QCD (pQCD) based framework, which allows us to get a good description of the ratio of the deuteron structure function to the free nucleon structure function. Nuclear effects on the extraction of the neutron structure functions F n 2 and g n 1 are estimated. We find that the effect on the extracted spin-dependent neutron structure function is very different from that on the spin-independent neutron structure function. The effect enhances the Bjorken sum by about 10%, whereas its correction to the Gottfried sum is rather small. The formalism for calculating nuclear effects is further used to evaluate the spin-dependent structure function of the 3 He nucleus and a good self-consistent check is obtained.

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Measurement of theAdependence of deep-inelastic electron scattering

Cited by 346 publications

References 94 publications

Nuclear PDFs at NLO – status report and review of the EPS09 results

Nuclear PDFs at NLO – status report and review of the EPS09 results

Polarized EMC effect in the Thermodynamical Bag Model

Nuclear effects on the extraction of neutron structure functions

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