Your browser has javascript turned off or blocked. This will lead to some parts of our website to not work properly or at all. Turn on javascript for best performance.

The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Typical working day..

Roman Pasechnik

Senior lecturer

Typical working day..

Nuclear effects in Drell-Yan production at the LHC

Author

  • M. Krelina
  • Eduardo Flach Basso
  • V. P. Goncalves
  • J. Nemchik
  • R. Pasechnik

Summary, in English

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.

Department/s

  • Theoretical Particle Physics
  • Department of Astronomy and Theoretical Physics

Publishing year

2016-07-04

Language

English

Publication/Series

EPJ Web of Conferences

Volume

120

Document type

Conference paper

Publisher

EDP Sciences

Topic

  • Subatomic Physics

Conference name

45th International Symposium on Multiparticle Dynamics, ISMD 2015

Conference date

2015-10-04 - 2015-10-09

Conference place

Munich, Germany

Status

Published