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This contribution focuses on the latest studies of heavy-flavour jets performed with the ALICE detector. The measurements of the jet momentum fraction carried by the D meson in pp collisions at $\sqrt{s}=5.02$ TeV and $13\ \mathrm{TeV}$…

High Energy Physics - Experiment · Physics 2021-02-03 Jakub Kvapil

Multiple-parton interactions play a vital role in hadron-hadron collisions. This paper presents a study of the multiple-parton interactions with simulated Z + jets events in proton-proton collisions at a centre-of-mass energy of 13 TeV. The…

High Energy Physics - Phenomenology · Physics 2019-05-02 M. Bansal , S. Bansal , R. Kumar , J. B. Singh

The fragmentation of a light parton i to a jet containing a light energetic hadron h, where the momentum fraction of this hadron as well as the invariant mass of the jet is measured, is described by "fragmenting jet functions". We calculate…

High Energy Physics - Phenomenology · Physics 2011-07-19 Ambar Jain , Massimiliano Procura , Wouter J. Waalewijn

A measurement of the transverse momentum spectra of jets in Pb-Pb collisions at $\sqrt{s_{\rm NN}}=2.76$ TeV is reported. Jets are reconstructed from charged particles using the anti-$k_{\rm T}$ jet algorithm with jet resolution parameters…

Nuclear Experiment · Physics 2014-11-04 ALICE Collaboration

Gauge invariance of QCD dictates the presence of string junctions in the wave functions of baryons. In high-energy inclusive processes, these baryon junctions have been predicted to induce the separation of the flows of baryon number and…

High Energy Physics - Phenomenology · Physics 2024-05-09 David Frenklakh , Dmitri Kharzeev , Giancarlo Rossi , Gabriele Veneziano

We consider the string breaking phenomenon within effective string models which purport to mimic QCD with two light flavors, with a special attention to baryon modes. We make some estimates of the string breaking distances at zero and…

High Energy Physics - Phenomenology · Physics 2020-05-13 Oleg Andreev

In collider physics, jet algorithms are a ubiquitous tool for clustering particles into discrete jet objects. Event shapes offer an alternative way to characterize jets, and one can define a jet multiplicity event shape, which can take on…

High Energy Physics - Phenomenology · Physics 2015-05-18 Daniele Bertolini , Jesse Thaler , Jonathan R. Walsh

The Large Hadron Collider witnesses the highest ever production cross-section of double parton scattering processes. The production of a Z-boson along with two jets from double parton scattering provides a unique opportunity to explore the…

High Energy Physics - Phenomenology · Physics 2019-05-22 R. Kumar , M. Bansal , S. Bansal

We report predictions for the transverse momentum ($p_T$) spectra of $\pi^{\pm}$, $K^{\pm}$, $p$, and $\bar{p}$ in various collision centrality from Au + Au collisions at beam energies ($E_{lab}$) of 6.7, 8, 11, and 25 A~GeV using a…

Nuclear Theory · Physics 2026-04-08 Towseef Bhat , Vipul Bairathi , Lokesh Kumar , Sonia Kabana

We study jets with identified hadrons in which a family of jet-shape variables called angularities are measured, extending the concept of fragmenting jet functions (FJFs) to these observables. FJFs determine the fraction of energy, z,…

High Energy Physics - Phenomenology · Physics 2016-07-20 Reggie Bain , Lin Dai , Andrew Hornig , Adam K. Leibovich , Yiannis Makris , Thomas Mehen

A measurement of the fragmentation functions of jets into charged particles in $p$+Pb collisions and $pp$ collisions is presented. The analysis utilizes 28 nb$^{-1}$ of $p$+Pb data and 26 pb$^{-1}$ of $pp$ data, both at…

High Energy Physics - Experiment · Physics 2018-09-06 ATLAS Collaboration

We present the microscopic model for collective effects, built on string-string interactions (string shoving and rope hadronization), recently implemented in the PYTHIA 8 and DIPSY event generators. Rope hadronization is shown to give a…

Nuclear Theory · Physics 2019-02-20 Christian Bierlich

In scattering experiments, high-virtuality partons, i.e., quarks and gluons, initiate a series of additional parton emissions to create collimated sprays of particles known as jets. This paper presents a measurement of the Lund jet plane…

Nuclear Experiment · Physics 2026-02-11 CMS Collaboration

Recent observations of quark-gluon plasma (QGP) like signatures in high multiplicity proton-proton (pp) collisions, have compelled the heavy-ion physics community to re-examine small collision systems for proper baseline studies.…

High Energy Physics - Phenomenology · Physics 2025-02-11 Aswathy Menon Kavumpadikkal Radhakrishnan , Suraj Prasad , Sushanta Tripathy , Neelkamal Mallick , Raghunath Sahoo

Heavy-flavor jets are powerful tools to gain insight into the in-medium partonic energy-loss mechanisms and the quark-gluon plasma's (QGP) transport properties in high-energy nuclear collisions. In this work we present the first theoretical…

High Energy Physics - Phenomenology · Physics 2023-08-30 Yao Li , Sa Wang , Ben-Wei Zhang

Three jet events arising from decays of the $Z^0$ boson, collected by the DELPHI detector at LEP, were used to measure differences in the properties of quark and gluon jet fragmentation. Gluon jets were anti-tagged in $b\bar{b}g$ events, by…

High Energy Physics - Experiment · Physics 2007-05-23 S. Marti i Garcia

The striking resemblance of high multiplicity proton-proton (pp) collisions at the LHC to heavy ion collisions challenges our conventional wisdom on the formation of the Quark-Gluon Plasma (QGP). A consistent explanation of the collectivity…

High Energy Physics - Phenomenology · Physics 2021-08-30 Liang Zheng , Guang-Hui Zhang , Yun-Fan Liu , Zi-Wei Lin , Qi-Ye Shou , Zhong-Bao Yin

The PYTHIA Monte Carlo (PMC), first introduced more than thirty years ago, remains a popular simulation tool both for analysis of $p$-$p$ collision dynamics and for detector design and calibration. The PMC assumes that almost all produced…

High Energy Physics - Phenomenology · Physics 2019-07-24 Thomas A. Trainor

To understand the dynamics of jet-medium interaction in small systems such as proton-proton (pp) and proton-lead (p-Pb) collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV, particle production is studied in three distinct topological regions…

High Energy Physics - Phenomenology · Physics 2025-12-11 Dushmanta Sahu , Antonio Ortiz , Victor Campos

Jets are collimated clusters of particles formed by the hadronization of partons following a hard interaction. In proton-proton ($pp$) collisions at the Relativistic Heavy Ion Collider (RHIC), jet production is dominated by $gg$ and $qg$…

High Energy Physics - Experiment · Physics 2026-03-31 The STAR Collaboration