Strangeness in Quark Matter 2016

Collectivity of strange hadrons in small and large colliding systems with CMS

30 Jun 2016, 10:20

20m

102 (Clark Kerr Campus)

Contributed Talk Flow

Speaker

George Stephans (Massachusetts Inst. of Technology (US))

Description

Observation of a long-range, near-side, two-particle correlation (known as the “Ridge”) in high-multiplicity pp and pPb collisions opened up new opportunities of exploring novel QCD dynamics in small collision systems. CMS has excellent capabilities of reconstructing weakly decay strange hadrons such as $K_s^0$, $\mathrm{\Lambda }$ and ${\mathrm{\Xi }}^{-}$. Studies of strange hadron production and correlations in small colliding systems provide crucial insights to the physical origin of novel collective phenomena. New results of pT spectra and long-range two-particle correlations for charged particles and identified strange hadrons in high-multiplicity pp and pPb collisions are presented. The data at various collision energies for pp and pPb collisions are compared to those obtained in large PbPb colliding systems. A measurement of multi-paricle cumulant in pp and pPb is also presented to explore the collective nature of the long-range correlations.

Presentation materials

Stephans_SQM16.pdf

Peer reviewing

Paper

Accepted on 4 Oct 2016 by Jochen Thaeder

StephansSQM2016.pdf