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Träfflista för sökning "WFRF:(Nemchik J.) srt2:(2016)"

Search: WFRF:(Nemchik J.) > (2016)

  • Result 1-2 of 2
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1.
  • Krelina, M., et al. (author)
  • Nuclear effects in Drell-Yan production at the LHC
  • 2016
  • In: EPJ Web of Conferences. - : EDP Sciences. - 2100-014X. ; 120
  • Conference paper (peer-reviewed)abstract
    • Using the color dipole formalism we study production of Drell-Yan (DY) pairs in proton-nucleus interactions in the kinematic region corresponding to LHC experiments. Lepton pairs produced in a hard scattering are not accompanied with any final state interactions leading to either energy loss or absorption. Consequently, dileptons may serve as more efficient and cleaner probes for the onset of nuclear effects than nclusive hadron production. We perform a systematic analysis of these effects in production of Drell-Yan pairs in pPb interaction at the LHC. We present predictions for the nuclear suppression as a function of the dilepton transverse momentum, rapidity and invariant mass which can be verified by the LHC measurements. We found that a strong nuclear suppression can be interpreted as an effective energy loss proportional to the initial energy universally induced by multiple initial state interactions. In addition, we study a contribution of coherent effects associated with the gluon shadowing affecting the observables predominantly at small and medium-high transverse momenta.
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2.
  • Krelina, M., et al. (author)
  • Systematic study of real photon and Drell-Yan pair production in p+A (d+A) interactions
  • 2016
  • In: EPJ Web of Conferences. - : EDP Sciences. - 2100-014X. ; 120
  • Conference paper (peer-reviewed)abstract
    • We study nuclear effects in production of Drell-Yan pairs and direct photons in proton-nucleus collisions. For the first time, these effects are studied within the color dipole approach using the Green function formalism which naturally incorporates the color transparency and quantum coherence effects. The corresponding numerical results for the nuclear modification factor are compared with available data. Besides, we present a variety of predictions for the nuclear suppression as a function of transverse momentum pT, Feynman variable xF and invariant mass M of the lepton pair which can be verified by experiments at RHIC and LHC. We found that the nuclear suppression is caused predominantly by effects of quantum coherence (shadowing corrections) and by the effective energy loss induced by multiple initial state interactions. Whereas the former dominate at small Bjorken x2 in the target, the latter turns out to be significant at large x1 in the projectile beam and is universal at different energies and transverse momenta.
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  • Result 1-2 of 2
Type of publication
conference paper (2)
Type of content
peer-reviewed (2)
Author/Editor
Krelina, M. (2)
Goncalves, V. P. (2)
Pasechnik, R. (2)
Flach Basso, Eduardo (2)
Nemchik, J. (2)
University
Lund University (2)
Language
English (2)
Research subject (UKÄ/SCB)
Natural sciences (2)
Year
2016 (2)Undo refine

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