Speaker
Michael Linus Knichel
(GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE))
Description
Light flavor transverse momentum spectra at intermediate and high $p_{\rm T}$
are important as baseline perturbative QCD measurements in pp, evaluating
initial state effects (nuclear p.d.f.'s) in p-Pb, and for investigating the
suppression in Pb-Pb collisions. In this talk results for all these
collisional systems will be presented.
The new measurement of $R_{\rm pPb}$ for unidentified charged particles
extended up to 50 GeV/$c$ will be presented together with the construction of
the reference pp spectrum at $\sqrt{s} = 5.02$ TeV. The final results on the
production of charged pions, kaons, and protons up to $p_{\rm T} = 20$ GeV/$c$
in pp and Pb-Pb collisions will also be reported and compared to recent QCD
and phenomenological calculations. The impact of these results on our
interpretation of jet quenching in Pb-Pb through $R_{\rm AA}$ and the
question of whether the proton-to-pion ratio can still be considered to be
anomalous will be discussed.
| On behalf of collaboration: | ALICE |
|---|
Author
Michael Linus Knichel
(GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE))
