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Transverse momentum integrated multiplicities in the central region of pp collisions at LHC energies satisfy Koba-Nielsen-Olesen scaling. We attempt to relate this finding to multiplicity distributions of soft gluons. KNO scaling emerges if…

High Energy Physics - Phenomenology · Physics 2012-09-20 Adrian Dumitru , Elena Petreska

Precise predictions for Higgs production via vector-boson fusion play an important role when testing the properties of the Higgs boson and probing new-physics effects. While the inclusive cross section changes little when including NNLO and…

High Energy Physics - Phenomenology · Physics 2017-06-28 Michael Rauch , Dieter Zeppenfeld

An interpretation of scale-invariant multiplicity fluctuations inside hadronic jets is presented. It is based on the branching mechanism with the angular ordering of soft partons in sequential branchings. A relationship with fractal…

High Energy Physics - Phenomenology · Physics 2011-09-13 S. V. Chekanov

We compute the inclusive jet function for boosted heavy quarks to $\mathcal{O}(\alpha_s^3)$. The jet function is defined and calculated in the framework of boosted Heavy-Quark Effective Theory (bHQET). It describes the effect of radiation…

High Energy Physics - Phenomenology · Physics 2025-04-08 Alberto M. Clavero , Robin Brüser , Vicent Mateu , Maximilian Stahlhofen

Charged multiplicity distributions and the mean charged multiplicity have been investigated in inclusive neutral current deep inelastic ep scattering with the ZEUS detector at HERA using an integrated luminosity of 38.6 pb-1. The…

High Energy Physics - Experiment · Physics 2014-11-20 Lydia Shcheglova

In this contribution we discuss the inclusive production of jets in central regions of rapidity in the context of $k_T$-factorization at next-to-leading order (NLO). We work in the Regge limit of QCD and use the NLO BFKL results. A jet cone…

High Energy Physics - Phenomenology · Physics 2014-11-18 J. Bartels , A. Sabio-Vera , F. Schwennsen

We analyze the charged particle multiplicity distributions in $p-p$ collisions and discuss the violation of the Koba--Nielsen--Olesen (KNO) scaling. We extract the deviations from the leading exponential behavior of the KNO scaled…

High Energy Physics - Phenomenology · Physics 2026-05-26 Mustapha Ouchen , Alex Prygarin

We study experimentally and theoretically mixing at the external boundary of a submerged turbulent jet. In the experimental study we use Particle Image Velocimetry and an Image Processing Technique based on the analysis of the intensity of…

Fluid Dynamics · Physics 2015-05-13 A. Eidelman , T. Elperin , N. Kleeorin , G. Hazak , I. Rogachevskii , O. Sadot , I. Sapir-Katiraie

We analyze Mueller's QCD dipole wave function evolution in the double logarithm approximation (DLA). Using complex analytical methods, we show that the distribution of dipole in the wave function (gluon multiplicity distribution)…

High Energy Physics - Phenomenology · Physics 2023-07-06 Yizhuang Liu , Maciej A. Nowak , Ismail Zahed

Within the framework of a high-twist approach, we calculate the next-to-leading order (NLO) perturbative QCD corrections to the transverse momentum broadening in semi-inclusive hadron production in deeply inelastic $e+A$ collisions, as well…

High Energy Physics - Phenomenology · Physics 2014-03-19 Zhong-Bo Kang , Enke Wang , Xin-Nian Wang , Hongxi Xing

Jet production and jet substructure modification in heavy-ion collisions have played an essential role in revealing the in-medium evolution of parton showers and the determination of the properties of strongly-interacting matter under…

High Energy Physics - Phenomenology · Physics 2020-04-29 Hai Tao Li , Ivan Vitev

We consider the class of inclusive hadron collider processes in which one or more energetic jets are produced, possibly accompanied by colourless particles. We provide a general formulation of a slicing scheme for this class of processes,…

High Energy Physics - Phenomenology · Physics 2024-05-15 Luca Buonocore , Massimiliano Grazzini , Jürg Haag , Luca Rottoli , Chiara Savoini

Proton-proton collisions at new high energies ($\sqrt {s} =$ 2.36 and 7 TeV) at LHC resulted into greater mean multiplicities ($<n>$) of charged particles in the mid-rapidity region than estimated ones by different models and event…

High Energy Physics - Phenomenology · Physics 2012-02-21 Premomoy Ghosh

We consider jet-shape observables of the type proposed recently, where the shapes of one or more high-pT jets, produced in a multi-jet event with definite jet multiplicity, may be measured leaving other jets in the event unmeasured. We…

High Energy Physics - Phenomenology · Physics 2015-03-14 Andrea Banfi , Mrinal Dasgupta , Kamel Khelifa-Kerfa , Simone Marzani

We present predictions and postdictions for a wide variety of hard jet-substructure observables using a multistage model within the JETSCAPE framework. The details of the multistage model and the various parameter choices are described in…

We present a study of charge balance functions inside jets in proton-proton collisions at $\sqrt{s}=13.6$ TeV using the PYTHIA8 event generator. The balance function is a differential observable of opposite-charge correlations, which is…

High Energy Physics - Experiment · Physics 2026-02-04 Subash Chandra Behera , Arvind Khuntia

The modification of hard jets in an extended static medium held at a fixed temperature is studied using three different Monte-Carlo event generators (LBT, MATTER, MARTINI). Each event generator contains a different set of assumptions…

Jet substructure and differential cross sections for jets produced in the photoproduction and deep inelastic ep scattering regimes have been measured with the ZEUS detector at HERA using an integrated luminosity of 82.2 pb-1. The…

High Energy Physics - Experiment · Physics 2008-11-26 the ZEUS Collaboration , S. Chekanov

The proton structure function is re-deduced from the data of deep inelastic electron-proton scattering after enhanced correction that is made due to the multiple scattering effect. The Glauber approach is used to account for the multiple…

High Energy Physics - Phenomenology · Physics 2007-05-23 N. M. Hassan , W. R. El-Harby , R. W. El-Moualed And M. T. Hussein

In this paper we found the multiplicity distribution of the produced gluons in deep inelastic scattering at large $z=\ln\LbQ^2_s/Q^2\Rb\,\,\gg\,\,1$ where $ Q_s $ is the saturation momentum and $Q^2$ is the photon virtuality. It turns out…

High Energy Physics - Phenomenology · Physics 2023-06-22 Eugene Levin