scholarly journals Heavy quarkonium in the saturated environment of high-multiplicity pp collisions

2020 ◽  
Vol 101 (5) ◽  
Author(s):  
B. Z. Kopeliovich ◽  
H. J. Pirner ◽  
I. K. Potashnikova ◽  
K. Reygers ◽  
Iván Schmidt
Keyword(s):  
High Multiplicity ◽  
Heavy Quarkonium ◽  
Pp Collisions

scholarly journals An investigation of high-multiplicity gamma events in pp collisions with c.m. energies between 22 and 62 GeV

1976 ◽  
Vol 15 (8) ◽  
pp. 269-273 ◽  
Author(s):  
G. F. Dell ◽  
H. Uto ◽  
L. C. L. Yuan ◽  
E. Amaldi ◽  
M. Beneventano ◽  
...  
Keyword(s):  
High Multiplicity ◽  
Pp Collisions

scholarly journals Rope Hadronization and Strange Particle Production

2018 ◽  
Vol 171 ◽  
pp. 14003 ◽  
Author(s):  
Christian Bierlich
Keyword(s):  
Particle Production ◽  
Strange Particle ◽  
High Multiplicity ◽  
Future Prospects ◽  
Pp Collisions ◽  
Small Systems ◽  
Strange Hadron ◽  
Strange Particle Production ◽  
Hadronization Model ◽  
Aa Collisions

Rope Hadronization is a model extending the Lund string hadronization model to describe environments with many overlapping strings, such as high multiplicity pp collisions or AA collisions. Including effects of Rope Hadronization drastically improves description of strange/non-strange hadron ratios as function of event multiplicity in all systems from e+e− to AA. Implementation of Rope Hadronization in the MC event generators Dipsy and Pythia8 is discussed, as well as future prospects for jet studies and studies of small systems.

scholarly journals The three point asymmetric cumulants in high multiplicity pp collisions

2021 ◽  
Vol 81 (12) ◽  
Author(s):  
B. Blok ◽  
R. Segev
Keyword(s):  
Experimental Data ◽  
Qualitative Agreement ◽  
Quantum Interference ◽  
High Multiplicity ◽  
Pp Collisions ◽  
Initial State ◽  
Colour Flow

AbstractWe study the influence of quantum interference and colour flow on three point correlations described by asymmetric cumulants in high multiplicity events in pp collisions. We use the model previously developed for the study of the collectivity in symmetric cumulants. We show that the resulting three point asymmetric cumulant is in qualitative agreement with the experimental data for the same parameters of the model as it was with the symmetric cumulants. Our results show that the initial state correlations must play a major role and may be even dominant in the explanation of the correlations in high multiplicity pp events.

scholarly journals Modification of Jet Structure in High-Multiplicity pp Collisions due to Multiple-Parton Interactions and Observing a Multiplicity-Independent Characteristic Jet Size

2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Zoltán Varga ◽  
Róbert Vértesi ◽  
Gergely Gábor Barnaföldi
Keyword(s):  
Charged Hadron ◽  
High Multiplicity ◽  
Monte Carlo Event ◽  
Pp Collisions ◽  
Shape Modification ◽  
Shape Dependence ◽  
Size Measure ◽  
Color Reconnection ◽  
Jet Structure ◽  
Simplistic Model

We study the multiplicity dependence of jet structures in pp collisions using Monte Carlo event generators. We give predictions for multiplicity-differential jet structures and present evidence for a nontrivial jet shape dependence on charged hadron event multiplicity that can be used as a sensitive tool to experimentally differentiate between equally well-preforming simulation tunes. We also propose a way to validate the presence and extent of effects such as multiple-parton interactions (MPI) or color reconnection (CR), based on the detection of nontrivial jet shape modification in high-multiplicity events at high pT. Using multiplicity-dependent jet structure observables in various pT windows might also help understanding the interplay between jet particles and the underlying event (UE). We introduce a multiplicity-independent characteristic jet size measure and use a simplistic model to aid its physical interpretation.

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