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Related papers: Jet effects in high-multiplicity pp events

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PYTHIA version 6 represents a merger of the PYTHIA 5, JETSET 7 and SPYTHIA programs, with many improvements. It can be used to generate high-energy-physics `events', i.e. sets of outgoing particles produced in the interactions between two…

High Energy Physics - Phenomenology · Physics 2008-11-26 Torbjörn Sjöstrand , Patrik Edén , Christer Friberg , Leif Lönnblad , Gabriela Miu , Stephen Mrenna , Emanuel Norrbin

We explore jet-medium interactions at various scales in high-energy heavy-ion collisions using the JETSCAPE framework. The physics of the multi-stage modeling and the coherence effect at high virtuality is discussed through the results of…

We study the structure of jets in proton-proton collisions at LHC energies using \textsc{Pythia} 8 Monte Carlo simulations. We demonstrate that the radial jet profiles exhibit scaling properties with charged-hadron event multiplicity over a…

High Energy Physics - Phenomenology · Physics 2021-07-13 Antal Gemes , Robert Vertesi , Gabor Papp , Gergely Gabor Barnafoldi

Di-jet observables are excellent probes to study the effect of jets in dense systems. Interacting Lund strings will affect jet observables and suggests a new common mechanism responsible for jet modification in p-A and A-A. In this…

High Energy Physics - Phenomenology · Physics 2022-09-21 Smita Chakraborty

The production of jets, and high-$p_{T}$ leading pions from jets, in d-Au collisions at the Relativistic Heavy-Ion Collider (RHIC) and p-Pb collisions at the Large Hadron Collider (LHC) are studied. Using a modified version of the event…

Nuclear Theory · Physics 2015-09-29 M. Kordell , A. Majumder

The hypothesis about the relation between the observed alignment of spots in the x-ray film in cosmic ray emulsion experiments and the features of events in which jets prevail at super high energies is tested. Due to strong dynamical…

High Energy Physics - Phenomenology · Physics 2009-01-07 I. P. Lokhtin , A. K. Managadze , L. I. Sarycheva , A. M. Snigirev

The PYTHIA program can be used to generate high-energy-physics `events', i.e. sets of outgoing particles produced in the interactions between two incoming particles. The objective is to provide as accurate as possible a representation of…

High Energy Physics - Phenomenology · Physics 2007-05-23 Torbjörn Sjöstrand , Leif Lönnblad , Stephen Mrenna , Peter Skands

The PYTHIA program can be used to generate high-energy-physics `events', i.e. sets of outgoing particles produced in the interactions between two incoming particles. The objective is to provide as accurate as possible a representation of…

High Energy Physics - Phenomenology · Physics 2009-11-11 Torbjorn Sjostrand , Stephen Mrenna , Peter Skands

It has been proposed to search for thermal and collective properties arising from parton-fragmentation processes by examining high jet charged-constituent multiplicities ($N_{\rm j,ch}$) in proton-proton (pp) collisions. This proposal was…

High Energy Physics - Phenomenology · Physics 2025-08-27 Robert Vertesi , Antonio Ortiz

The motivation behind exploring jet quenching-like phenomena in small systems arises from the experimental observation of heavy-ion-like behavior of particle production in high-multiplicity proton-proton ($p+p$) collisions. Quantifying the…

High Energy Physics - Phenomenology · Physics 2023-11-14 Hushnud Hushnud , Omveer Singh , Srikanta Kumar Tripathy , Aditya Nath Mishra , Kalyan Dey

Recent studies of high-multiplicity events in small collision systems (proton-proton and proton-lead) have drawn research interest towards the possibility of the formation of partonic medium in such systems. One of the important…

High Energy Physics - Phenomenology · Physics 2023-10-09 Prottoy Das , Abhi Modak , Debjani Banerjee , Rathijit Biswas , Supriya Das , Sanjay K. Ghosh , Sibaji Raha , Sidharth Kumar Prasad

The production of jets, and high momentum hadrons from jets, produced in deuteron ($d$)-$Au$ collisions at the relativistic heavy-ion collider (RHIC) and proton ($p$)-$Pb$ collisions at the large hadron collider (LHC) are studied as a…

Nuclear Theory · Physics 2018-05-16 Michael Kordell , Abhijit Majumder

The ALICE Collaboration reports a search for jet quenching effects in high-multiplicity (HM) proton$-$proton collisions at $\sqrt{s}$ = 13 TeV, using the semi-inclusive azimuthal-difference distribution $\Delta\varphi$ of charged-particle…

High Energy Physics - Experiment · Physics 2024-06-10 ALICE Collaboration

We study the production of a large-pT photon in association with a jet in proton-proton collisions. We examine the sensitivity of the jet rapidity distribution to the gluon distribution function in the proton. We then assess the sensitivity…

High Energy Physics - Phenomenology · Physics 2009-07-09 Z. Belghobsi , M. Fontannaz , J. -Ph. Guillet , G. Heinrich , E. Pilon , M. Werlen

High-multiplicity pp collisions at the Large Hadron Collider (LHC) energies have created special importance in view of the Underlying Event (UE) observables. The recent results of LHC, such as long range angular correlation, flow-like…

High Energy Physics - Phenomenology · Physics 2020-04-10 Anisa Khatun , Dhananjaya Thakur , Suman Deb , Raghunath Sahoo

Over the past 30 years, jet observables have proven to provide important information about the quark-gluon plasma created in heavy-ion collisions. I review the challenges, results, and open problems of jet physics in heavy-ion collisions,…

High Energy Physics - Phenomenology · Physics 2016-02-20 Barbara Betz

We postulate that non-perturbative QCD effects occurring during parton fragmentation can result in collective effects of a multi-parton system, reminiscent of those observed in high-energy hadronic or nuclear interactions with large…

High Energy Physics - Phenomenology · Physics 2023-06-26 Austin Baty , Parker Gardner , Wei Li

The new framework for the simulations of hard diffractive events in photoproduction within Pythia 8 is presented. The model, originally introduced for proton-proton collisions, applies the dynamical rapidity gap survival probability based…

High Energy Physics - Phenomenology · Physics 2021-07-16 Ilkka Helenius

The suppression and modification of high-energy objects, like jets, in heavy-ion collisions provide an important window to access the degrees of freedom of the quark-gluon plasma on different length scales. Despite increasingly precise and…

Nuclear Theory · Physics 2021-01-01 Jasmine Brewer

The nature of a jet's fragmentation in heavy-ion collisions has the potential to cast light on the mechanism of jet quenching. However the presence of the huge underlying event complicates the reconstruction of the jet fragmentation…

High Energy Physics - Phenomenology · Physics 2015-06-11 Matteo Cacciari , Paloma Quiroga-Arias , Gavin P. Salam , Gregory Soyez