2nd International Workshop on QCD Challenges from pp to AA

Session

New ideas to explore effects on small systems

2 Nov 2017, 09:55

24. Study the new phenomena using the underlying event

Antonio Ortiz Velasquez (Universidad Nacional Autonoma (MX))

02/11/2017, 09:55

TBA

15. The Linear Sigma Model coupled to quarks to explore the QCD phase diagram.

Dr Luis Hernandez (Instituto de Ciencias Nucleares, UNAM)

02/11/2017, 10:30

We use the linear sigma model coupled to quarks to compute the effective potential beyond the mean field approximation, including the contribution of the plasma screening effects, at finite temperature and density. We determine uniquely the model coupling constants (the only free parameters in the model) and use them to study the phase diagram in the temperature-baryon chemical potential plane...

12. Identified hadron production as a function of multiplicity and spherocity in pp collisions at $\sqrt{s}$ = 13 TeV

Vytautas Vislavicius (Lund University (SE))

02/11/2017, 11:20

To understand the origins of collective-like phenomena observed in pp collisions at LHC energies, underlying mechanisms have to be identified. In this context, event shape observables provide a possible tool to disentangle soft and hard contributions to particle production. We report on a study of the production of pions, kaons and protons as a function of transverse spherocity in high...

34. What can learn from non-extensive parameters in pp & pA collisions?

Dr Gergely Gabor Barnafoldi (Wigner RCP Hungarian Academy of Sciences (HU))

02/11/2017, 11:55

Identified hadron spectra from recent years are analyzed in the non-extensive thermodynamical framework. The Tsallis cut power-law is known to describe the p T distributions for a wide energy range, but its origin is still unknown. We pursue the physical origin of this observation by investigating the center-of-mass energy, multiplicity, mass and strangeness dependency of the Tsallis q and T...

36. Universality of particle production and energy balance in hadronic and nuclear collisions

Dr Aditya Nath Mishra (ICN-UNAM, Mexico City, Mexico)

02/11/2017, 12:30

A study of the universality of multihadron production in nucleus-nucleus and pp/{\bar p}p collisions is performed using the dependencies of the midrapidity pseudorapidity and transverse energy densities and of the mean multiplicity on the collision energy and on the number of nucleon participants, or centrality, in the energy range from a few GeV to a few TeV. The approach in which the...

18. Revealing the source of the radial flow patterns in proton–proton collisions using hard probes

Hector Bello Martinez (Autonomous University of Puebla (MX))

02/11/2017, 14:35

In this work, we propose a tool to reveal the origin of the collective-like phenomena observed in proton–proton collisions. We exploit the fundamental difference between the underlying mechanisms, color reconnection and hydrodynamics, which produce radial flow patterns in Pythia 8 and Epos 3, respectively. Specifically, we proceed by examining the strength of the coupling between the soft and...

43. Energy and multiplicity dependence of charged particle production in pp collisions with ALICE at the LHC

Sergio Arturo Iga Buitron (Universidad Nacional Autonoma (MX))

02/11/2017, 15:10

The study of the charged particle production as a function of the multiplicity in small colliding systems, as pp, is an attractive tool to understand the similarities and differences between small and large colliding systems. Evidence of similarities, like coherent and collective effects, well know in AA collisions, has been found experimentally even in small systems.

Recent results of the...