Pseudorapidity density of charged particles in pp + Pb collisions at sNN=5.02\sqrt{s_{NN}}=5.02 TeV

Collaboration
Oct, 2012
10 pages
Published in:
  • Phys.Rev.Lett. 110 (2013) 3, 032301
  • Published: Jan 18, 2013
e-Print:
Report number:
  • CERN-PH-EP-2012-307
Experiments:

Citations per year

20122015201820212024010203040
Abstract: (APS)
The charged-particle pseudorapidity density measured over four units of pseudorapidity in nonsingle-diffractive p+Pb collisions at a center-of-mass energy per nucleon pair sNN=5.02  TeV is presented. The average value at midrapidity is measured to be 16.81±0.71  (syst), which corresponds to 2.14±0.17  (syst) per participating nucleon, calculated with the Glauber model. This is 16% lower than in nonsingle-diffractive pp collisions interpolated to the same collision energy and 84% higher than in d+Au collisions at sNN=0.2  TeV. The measured pseudorapidity density in p+Pb collisions is compared to model predictions and provides new constraints on the description of particle production in high-energy nuclear collisions.
Note:
  • 25.75.-q
  • rapidity: density
  • charged particle: rapidity
  • p p: scattering
  • p nucleus: nuclear reaction
  • lead
  • experimental results
  • ALICE
  • CERN LHC Coll
  • 5020 GeV-cms/nucleon