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Dr.
ICN-UNAM
2e7231032dd9e70fb1f99cfd047c8536
0
8th International Workshop on Multiple Partonic Interactions at the LHC
MPI are experiencing a growing popularity and are widely invoked to account for observations that cannot be explained otherwise: the activity of the Underlying Event, the rates for multiple heavy flavour production, the survival probability of large rapidity gaps in hard diffraction, etc. At the same time, the implementation of MPI effects in Monte Carlo generators is quickly proceeding at an increasing level of sophistication and complexity, which can have far reaching implications for LHC physics. The ultimate ambition of this workshop is to promote MPI as a unifying concept between apparently distinct lines of research, to profit from experimental progress in order to constrain their implementation in models, and to evaluate their impact on the LHC physics program.
Topics:
- Phenomenology of MPI processes and multiparton distributions
- Considerations for the description of MPI in QCD
- Measuring multiple partonic interactions
- Experimental results on inelastic hadronic collisions: underlying event, minimum bias, forward energy flow
- Monte Carlo development and tuning
- Connections with diffraction, heavy-ion physics and cosmic rays
False
Hotel Rincón del Arco
Salón Giralda
2016-11-28T08:00:00
2016-12-02T21:00:00
2016-03-08T07:42:54
2017-05-16T17:18:31
Mexico/General
47
false
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Revealing the Source of the Radial Flow Patterns in Proton-Proton Collisions using Hard Probes
Mr.
Wigner RCP, Hungary
34c144df72d56f023bbf7356985ee8f1
Mr.
Wigner RCP, Hungary
34c144df72d56f023bbf7356985ee8f1
Dr.
ICN, UNAM
3cc916d5f73ae193b3b29364a50e4b40
FCFM-BUAP
462901f19c40b5f7f499f850cb7d407b
Hotel Rincón del Arco
Salón Giralda
2016-11-28T16:10:00
2016-11-28T16:30:00
00:20
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 (CR) and hydrodynamics, which produce radial flow patterns in PYTHIA 8 and EPOS 3, respectively. Namely, the strength of the coupling between the soft and hard components which by construction is larger in PYTHIA 8 than in EPOS 3. We, therefore, study the transverse momentum ($p_{\rm T}$) distributions of charged pions, kaons and (anti)protons as a function of the event multiplicity and the transverse momentum of the leading jet ($p_{\rm T}^{\rm jet}$), being all of them determined within a pseudorapidity interval of $|\eta|<1$. Quantitative and qualitative differences between PYTHIA 8 and EPOS 3 are found in the $p_{\rm T}$ spectra when (for a given multiplicity class) the leading jet $p_{\rm T}$ is increased. In addition, we show that for low-multiplicity events jets can produce radial flow-like behaviour. We propose to perform a similar analysis using data from RHIC and LHC.
Reference: https://arxiv.org/abs/1608.04784
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