Nuclear effects in deep inelastic muon scattering on deuterium and iron targets

Benvenuti, A. C.; Bollini, D.; Bruni, G.; Navarria, F. L.; Argento, A.; Cvach, J.; Dieters, K.; Piemontese, L.; Veress, I.; Závada, P.; Fadeev, N.G.; Golutvin, I.; Kazarinov, M. Y.; Kiryushin, Yu.T.; Krivokhizhin, V.G.; Kukhtin, V.; Lohmann, W.; Němeček, S.; Reimer, P.; Savin, I.; Smirnov, G.I.; Strachota, J.; Sultanov, G.; Todorov, Plamen; Volodko, A.; Jamnik, D.; Kopp, R.; Meyer‐Berkhout, U.; Staude, A.; Teichert, K. M.; Tirler, R.; Voss, R.; Zupančič, Č.; Cribier, M.; Feltesse, J.; Milsztajn, A.; Ouraou, A.; Rich-Hennion, P.; Sacquin, Y.; Smadja, G.; Virchaux, M.

doi:10.1016/0370-2693(87)90664-2

Cited by 148 publications

(70 citation statements)

References 9 publications

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“…1; similar results hold at Q 2 = 20 GeV 2 which we do not present here. The w = 0 fit uses only the A DIS+DY data, and this agrees well with the SLAC and BCDMS points [3][4][5]8,11] displayed in Fig. 1a).…”

supporting

confidence: 75%

“…The data points displayed in figure a) are from BCDMS and SLAC experiments [3][4][5]8,11] and those displayed in figure b) come from the NuTeV experiment [20,21] We first examine the nuclear correction factors R[F Fe 2 ] F Fe 2 /F N 2 needed to correct the nuclear data to the free nucleon level. 1 We compute these quantities in the QCD parton model at next-to-leading order employing the NPDF fits in Table 2.…”

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confidence: 99%

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Nuclear Corrections in ν A DIS and Their Compatibility with Global NPDF Analyses

et al. 2012

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We perform a global χ 2 -analysis of nuclear parton distribution functions using data from charged current neutrino-nucleus (ν A) deep inelastic scattering (DIS), charged-lepton-nucleus ( ± A) DIS, and the Drell-Yan (DY) process. We show that the nuclear corrections in ν A DIS are not compatible with the predictions derived from ± A DIS and DY data. We quantify this result using a hypothesis-testing criterion based on the χ 2 distribution which we apply to the total χ 2 as well as to the χ 2 of the individual data sets. We find that it is not possible to accommodate the data from ν A and ± A DIS by an acceptable combined fit. This implies that either the twist-2 parton distribution functions in nuclei are not universal, or that higher-twist terms play a more important role in the nuclear environment and have to be taken into account.

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confidence: 75%

mentioning

confidence: 99%

Nuclear Corrections in ν A DIS and Their Compatibility with Global NPDF Analyses

et al. 2012

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“…Deep inelastic scattering (DIS) experiments which have been performed by NMC, SLAC, NMC, FNAL, BCDMS, HERMES, and JLAB groups [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] confirm the specific feature of nuclear reactions at certain regions of the x-Bjorken variable, which was first observed by the EMC. This specific feature has also been seen in Drell-Yan cross-section ratios [17,18].…”

Section: Introductionmentioning

confidence: 64%

Nuclear parton densities and their uncertainties at the next-to-leading order

Tehrani

2012

Phys. Rev. C

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Considering the nuclear reactions which involve specific features at certain regions of the x-Bjorken variable which was first observed by the EMC group, we indicate that the parton distributions in nuclei are not simply as the parton densities in nucleons. In addition to the most commonly analyzed data sets for deep-inelastic scattering of charged leptons off nuclei, we also analyze the Drell-Yan dilepton production. We investigate parametrizations of nuclear parton distributions at the next-to-leading order (NLO) of α s . Finally, optimum nuclear structure functions are determined by a χ 2 analysis of experimental data for the nuclear structure function F A 2 /F A 2 and Drell-Yan cross-section ratios. The related uncertainties are estimated by the Hessian method. Our results are in good agreement with the available experimental data and better than the results of some other fitting parametrization methods.

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“…The effect was first seen in 1983, when the EMC measured the ratio for muon scattering from iron and deuterium, expecting the ratio to be about 1 (with deviations at high x owing to Fermi smearing) [1,50]. The effect has been confirmed and repeatedly measured by many other groups, such as by a Rochester-SLAC-MIT collaboration [51,52], SLAC [4,49], BCDMS [53,54], the EMC [55,56], the NMC [57][58][59][60], HERA [61], and Jefferson Lab [62,63].…”

Section: The Emc Effectmentioning

confidence: 85%

“…Secondly, the energy of the spectator First, using the effective Feynman rules for Fig. 3.5a, we have 54) where the momenta are as notated in the figure. Next, integration over p ′0 n and p ′′0 n is used to put the neutron on its positive-energy mass shell, and exact completeness relations are subsequently used for the intermediate neutron states.…”

Section: Double Rescattering Correctionmentioning

confidence: 99%

Hard QCD Processes in the Nuclear Medium

Freese¹

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Nuclear effects in deep inelastic muon scattering on deuterium and iron targets

Cited by 148 publications

References 9 publications

Nuclear Corrections in ν A DIS and Their Compatibility with Global NPDF Analyses

Nuclear Corrections in ν A DIS and Their Compatibility with Global NPDF Analyses

Nuclear parton densities and their uncertainties at the next-to-leading order

Hard QCD Processes in the Nuclear Medium

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