Feb 5 – 11, 2017
Hyatt Regency Chicago
America/Chicago timezone

Event topology dependence of the event-by-event mean $p_{\rm T}$ fluctuations in high multiplicity pp collisions at 13 TeV

Not scheduled
2h 30m
Hyatt Regency Chicago

Hyatt Regency Chicago

151 East Wacker Drive Chicago, Illinois, USA, 60601
Board: E11


Irais Bautista Guzman (Autonomous University of Puebla (MX))


Event-by-event fluctuations contain information on the dynamics and correlations in pp and heavy-ion collisions. In nuclear collisions event-by-event fluctuations of the mean transverse momentum ($p_{\rm T}$) are used to study collective phenomena. To contribute to the understanding of the collective effects in pp collisions which have been recently shown by experiments at the LHC, and to obtain more details about the origin of the non-statistical fluctuations, in this work we report the multiplicity dependence of the $< p_{\rm T} >$ event-by-event fluctuations in pp collisions at $\sqrt{s}=13$ TeV using the ALICE detector. The obtained results for charged particles are consistent with the previous published ALICE results at lower energies. To understand the origin of the $< p_{\rm T} >$ fluctuations we have implemented a selection based on transverse spherocity to disentangle the contribution from isotropic and pencil-like events. The results are compared with PYTHIA 8 and EPOS 3.

Collaboration ALICE
Preferred Track Correlations and Fluctuations

Primary author

Irais Bautista Guzman (Autonomous University of Puebla (MX))

Presentation materials