Scope: PWG
PWG-LF (Light Flavour Spectra)
Energy
13 TeV
System
p-p
Figure Group
Figure Image
Figure image (.eps)
Figure image (.pdf)
Figure Caption
Particle ratio K*± /K for pp and K*0/K presented for pp, central Pb-Pb, high-multiplicity p-Pb, central d-Au, and central A-A collisions as a function of the collision energy. Bars (when present) represent statistical uncertainties. Boxes represent the total systematic uncertainties or the total uncertainties for cases when separate statistical uncertainties were not reported. The K*0/K points for d-Au collisions at 200 GeV have been shifted horizontally for visibility. The K*± /K points for pp collisions at 13 TeV have been shifted horizontally for visibility.
The value given by a grand-canonical thermal model with a chemical freeze-out temperature of 156 MeV is also shown.
Detail description
For K*± and K*0 in pp Collisions at 13 TeV:
Data sample: LHC15f, pass2, ESDs
Event selection: Physics Selection, |vz|<10 cm, other standard event-selection cuts for PWG-LF 13-TeV analyses (see analysis note)
Track Cuts: standard ITS/TPC track cuts 2011 (see analysis note)
For K+/- in pp Collisions at 13 TeV:
Data sample: LHC15f, pass2, ESDs
Event selection: Physics Selection, |vz|<10 cm, other standard event-selection cuts for PWG-LF 13-TeV analyses (see analysis note)
Track Cuts: standard ITS/TPC track cuts 2011 (see analysis note)
Analysis Note: Charged pion, kaon and (anti)proton production in pp collisions at 13 TeV: https://alice-notes.web.cern.ch/node/476