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Kopeliovich, B. Z.; Nemchik, J.; Potashnikova, I. K.; Johnson, Mikkel B.; Schmidt, Iván

doi:10.1103/physrevc.72.054606

Cited by 129 publications

(256 citation statements)

References 74 publications

(121 reference statements)

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“…Our calculations are fully constrained by existing DIS data [12] and provide an upper limit on nuclear modification from dynamical high-twist shadowing. Deviations between the calculations and the existing data are indicative of inelastic scattering in nuclei [22].…”

Section: Discussionmentioning

confidence: 99%

“…In a model of Sudakov suppression, Ref. [22], it was shown that the effect is amplified at forward Feynman x, x F → 1.…”

Section: Energy Loss In Cold Nuclear Mattermentioning

confidence: 99%

“…While jet quenching effects are best established in A+A reactions [3,4,5], it was recently shown that energy loss can lead to hadron suppression in d+Au collisions at forward rapidities at RHIC [22]. In a preliminary study [23] we approximated the effects of such energy loss by a rapidity shift.…”

Section: Introductionmentioning

confidence: 99%

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Open charm tomography of cold nuclear matter

et al. 2006

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We study the relative contribution of partonic sub-processes to D meson production and D mesontriggered inclusive di-hadrons to lowest order in perturbative QCD. While gluon fusion dominates the creation of large angle DD pairs, charm on light parton scattering determines the yield of single inclusive D mesons. The distinctly different non-perturbative fragmentation of c quarks into D mesons versus the fragmentation of quarks and gluons into light hadrons results in a strong transverse momentum dependence of anticharm content of the away-side charm-triggered jet.In p+A reactions, we calculate and resum the coherent nuclear-enhanced power corrections from the final-state partonic scattering in the medium. We find that single and double inclusive open charm production can be suppressed as much as the yield of neutral pions from dynamical high-twist shadowing. Effects of energy loss in p+A collisions are also investigated phenomenologically and may lead to significantly weaker transverse momentum dependence of the nuclear attenuation.

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Section: Discussionmentioning

confidence: 99%

“…In a model of Sudakov suppression, Ref. [22], it was shown that the effect is amplified at forward Feynman x, x F → 1.…”

Section: Energy Loss In Cold Nuclear Mattermentioning

confidence: 99%

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Open charm tomography of cold nuclear matter

et al. 2006

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“…at large Feynman x F ) one faces the energy sharing problem [65]: it is more difficult to give the whole energy to one particle in p − A, than in p − p collision. This effect leads to a breakdown of QCD factorization and to nuclear suppression observed at forward rapidities [65,66,67,68] in any reaction measured so far, even at low energies, where no shadowing is possible.…”

Section: Numerical Resultsmentioning

confidence: 99%

Gluon shadowing in DIS off nuclei

Kopeliovich¹,

Nemchik²,

Potashnikova³

et al. 2008

J. Phys. G: Nucl. Part. Phys.

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Within a light-cone quantum-chromodynamics dipole formalism based on the Green function technique, we study nuclear shadowing in deep-inelastic scattering at small Bjorken x Bj ∼ < 0.01. Such a formalism incorporates naturally color transparency and coherence length effects. Calculations of the nuclear shadowing for theqq Fock component of the photon are based on an exact numerical solution of the evolution equation for the Green function, using a realistic form of the dipole cross section and nuclear density function. Such an exact numerical solution is unavoidable for x Bj ∼ > 10 −4 , when a variation of the transverse size of theqq Fock component must be taken into account. The eikonal approximation, used so far in most other models, can be applied only at high energies, when x Bj ∼ < 10 −4 and the transverse size of theqq Fock component is "frozen" during propagation through the nuclear matter. At x Bj ≤ 0.01 we find quite a large contribution of gluon suppression to nuclear shadowing, as a shadowing correction for the higher Fock states containing gluons. Numerical results for nuclear shadowing are compared with the available data from the E665 and NMC collaborations. Nuclear shadowing is also predicted at very small x Bj corresponding to LHC kinematical range. Finally the model predictions are compared and discussed with the results obtained from other models.

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“…Single jet production is expected in color glass condensate theories [16], with a parton from the deuteron scattering off the low-x gluon field of the Au nucleus. The away-side suppression may also have explanations via other mechanisms [17].…”

Section: Jets At Forward Anglesmentioning

confidence: 99%

Heavy Flavor and Jets at RHIC

Prindle

2011

Nuclear Physics A

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We present recent results for heavy flavor and jets produced in √ sNN = 200 GeV p-p, d-Au, Cu-Cu and Au-Au collisions at at RHIC. We find J/ψ production is suppressed in Au-Au, but high energy J/ψ are not suppressed in d-Au or Cu-Cu. Non-photonic electrons from D and B mesons are both suppressed in Au-Au. We study jets using two-particle 2D angular correlations as well as jet reconstruction algorithms. We find that jets show little if any suppression, but are highly modified in central Au-Au, becoming elongated in the η direction and having fewer high-pt particles but many more low-pt particles for central Au-Au.

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Breakdown of QCD factorization at large Feynmanx

Cited by 129 publications

References 74 publications

Open charm tomography of cold nuclear matter

Open charm tomography of cold nuclear matter

Gluon shadowing in DIS off nuclei

Heavy Flavor and Jets at RHIC

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