2nd International Workshop on QCD Challenges from pp to AA

Session

Initial state physics in small collisions systems

3 Nov 2017, 09:55

Other Institutes

26. De-Confinement and Percolation in nucleus-nucleus and hadron-hadron collisions

Brijesh Kumar Srivastava (Purdue University (US))

03/11/2017, 09:55

A possible phase transition of strongly interacting matter from hadron to
quark-gluon plasma state has received considerable interest in the past.
What conditions are necessary in the pre-equilibrium stage to achieve
deconfinement and perhaps subsequent quark-gluon plasma formation ?
In this talk the Color String Percolation Model (CSPM) has been explored to describe the initial stages in...

22. Initial state and final state effects on azimuthal correlations in p+p and p+A collisions.

Soeren Schlichting (University of Washington)

03/11/2017, 10:30

Observations of long rang azimuthal correlations in small collision systems (p+p/A) have triggered an enormous excitement in the heavy-ion community. However, it is presently unclear to what extent the experimentally observed correlations should be attributed to initial state momentum correlations and/or the final state response to the initial state geometry. Starting from a brief overview of...

44. Small systems effects on SPM

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

03/11/2017, 11:35

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38. Bulk and Shear viscosity for small collision systems at LHC energies

Mr Ricardo Alvarado (BUAP)

03/11/2017, 12:00

We study the interplay of the contribution of bulk and shear viscosities in p-p and p-Pb collisions at LHC energies in the framework of the String Percolation Model which for high multiplicities exhibit a similar behavior as the geometric phase transition given in heavy ion collision. The results show that the bulk viscosity gives a relevant contribution to the overall viscosity of the formed system.

39. Study of the event by event mean transverse momentum fluctuations in pp collision at LHC energies with percolation color sources

Pablo Fierro

03/11/2017, 12:25

We present a study of the event by event mean transverse momentum fluctuations in high multiplicity pp and p-Pb collision systems at LHC energies in the framework of the String Percolation Model as a function of multiplicity. We found that data can be naturally described by the clustering of color sources that take place in the small collision systems in a similar manner as it does in heavy...

16. Searching for high density effects in photon induced reactions

Martin Hentschinski (Universidad de las Americas, Puebla)

03/11/2017, 12:50

We discuss possible processes which can be used to pin down the presence of high gluon densities in both photon-proton and photon-nucleus collisions. The presence of such high gluon density itself can then be argued to be characteristic for a regime of QCD where the possible on-set of gluon saturation can be observed. To this end we use the spinor helicity formalism to calculate the cross...