Quark Matter 2017

Session

Parallel Session 1.2: QCD in Small Systems (I)

7 Feb 2017, 08:30

Regency B

Conveners

Parallel Session 1.2: QCD in Small Systems (I)

• Peter Braun-Munzinger (GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE))

297. Event activity-dependence of jet production in p--Pb collisions at $\sqrt{s_{NN}} =5.02$ TeV measured with semi-inclusive hadron+jet correlations by ALICE

Filip Krizek (Acad. of Sciences of the Czech Rep. (CZ))

07/02/2017, 08:30

Jets and High pT Hadrons

Oral

We report measurement of the semi-inclusive distribution of charged-particle jets recoiling from a high transverse momentum ($p_{T}$) hadron trigger, for p--Pb collisions at $\sqrt{s_{NN}} =5.02$ TeV that have been classified by event activity. This coincidence observable is calculable perturbatively in vacuum, and has previously been measured in pp and Pb--Pb collisions at the LHC, providing...

380. New insights of multi-particle azimuthal correlations via differential studies in high-multiplicity pPb collisions with CMS

Maxime Guilbaud (Rice University (US))

07/02/2017, 08:50

QCD in small systems

Oral

The formation of a QGP in heavy ion collisions and the hydrodynamic expansion of the created medium are well established and reasonably well understood. This state of nuclear matter was not expected to be found in reactions involving smaller systems, such as the pA and pp collisions. Nevertheless, a wealth of experimental evidence in recent years has suggested the presence of collective...

488. Multiplicity dependence of jet-like two-particle correlations in pp collisions at $\sqrt{s}$ = 7 and 13 TeV with ALICE

Igor Lakomov (CERN)

07/02/2017, 09:10

QCD in small systems

Oral

Two-particle correlations in relative azimuthal angle ($\Delta\phi$) and pseudorapidity ($\Delta\eta$) have been used to study heavy-ion collision dynamics, including medium-induced jet modification. These correlations have been extensively studied in small collision systems by all the four main LHC experiments. Further investigations showed also the importance of Multiple Parton Interactions...

524. Measurement of J/Psi production as a function of event multiplicity in pp collisions at sqrt(s) = 13TeV with ALICE

Steffen Georg Weber (Technische Universitaet Darmstadt (DE))

07/02/2017, 09:30

QCD in small systems

Oral

The availability at the LHC of the largest collision energy in pp collisions
allows a significant advance in the measurement of J/$\psi$ production as function
of event multiplicity. The interesting relative increase observed with data
at the LHC at $\sqrt{s}=7$ TeV and at RHIC at $\sqrt{s}=200$ GeV is studied now
at unprecedented multiplicities at $\sqrt{s}=13$ TeV.
The new measurement,...

315. Multiplicity dependence of identified particle production in proton-proton collisions with ALICE

Vytautas Vislavicius (Lund University (SE))

07/02/2017, 09:50

QCD in small systems

Oral

The study of identified particle production as a function of the proton-proton (pp) collision energy and multiplicity
is a key tool for understanding similarities and differences between small and large interacting systems.
We report on the production of pions, kaons, protons, K$^{0}_{\rm S}$, $\Lambda$, $\Xi$, $\Omega$, K$^{*0}$ and $\phi$ measured in pp collisions for $\sqrt{s}$ ranging...