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Related papers: Using Two-jet Events to Understand Hadronization

200 papers

Jets are multiscale objects that connect partons to hadrons, making jet substructure measurements crucial for probing both perturbative and non-perturbative processes in QCD. At STAR, a variety of jet substructure observables, such as…

High Energy Physics - Experiment · Physics 2025-08-01 Monika Robotkova

Hadronic final states in hadron-hadron collisions are often studied by clustering final state hadrons into jets, each jet approximately corresponding to a hard parton. The typical jet size in a high energy hadron collision is between 0.4…

High Energy Physics - Phenomenology · Physics 2009-10-28 M. Campanelli , J. W. Monk

We confront a hybrid strong/weak coupling model for jet quenching to data from LHC heavy ion collisions. The model combines the perturbative QCD physics at high momentum transfer and the strongly coupled dynamics of non- abelian gauge…

High Energy Physics - Phenomenology · Physics 2015-11-26 Jorge Casalderrey-Solana , Doga Can Gulhan , Jose Guilherme Milhano , Daniel Pablos , Krishna Rajagopal

Using data from e+e- annihilation into hadrons, taken with the OPAL detector at LEP at the Z pole between 1991 and 1995, we performed a simultaneous measurement of the colour factors of the underlying gauge group of the strong interaction,…

High Energy Physics - Experiment · Physics 2008-11-07 The OPAL collaboration , G. Abbiendi

Significant colour interference effects are expected in V(=gamma,W,Z)+jet production at hadron colliders. These directly influence the hadronic antenna patterns and can provide a valuable diagnostic tool for probing the nature of the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Valery A. Khoze , W. J. Stirling

The doubly charmed hadron production at B factories is of special importance for the study of the hadron structure and the color connections before hadronization. To suppress the combination background fluctuations of the reconstructed…

High Energy Physics - Phenomenology · Physics 2014-05-13 Yi Jin , Shi-Yuan Li , Yan-Rui Liu , Zong-Guo Si , Tao Yao

Infrared and collinear events shapes are suited to directly probe properties of hard QCD. They are traditionally used to measure the strong coupling and to test the gauge structure of QCD. Perturbative predictions exist in several…

High Energy Physics - Phenomenology · Physics 2007-05-23 D. Wicke

Being able to distinguish light-quark jets from gluon jets on an event-by-event basis could significantly enhance the reach for many new physics searches at the Large Hadron Collider. Through an exhaustive search of existing and novel jet…

High Energy Physics - Phenomenology · Physics 2013-04-15 Jason Gallicchio , Matthew D. Schwartz

Perturbative QCD analysis is presented of the cumulative out-of-plane momentum distribution in the near-to-planar e+e- annihilation events, K_out << Q. In this kinematical region multiple gluon radiation effects become essential. They are…

High Energy Physics - Phenomenology · Physics 2011-07-19 A. Banfi , G. Marchesini , Yu. L. Dokshitzer , G. Zanderighi

In 1998, at the 4th QCD workshop, Rolf Baier asked me whether jets could be measured in Au+Au collisions because he had a prediction of a QCD medium-effect (energy loss via soft gluon radiation induced by multiple scattering) on…

High Energy Physics - Experiment · Physics 2008-11-26 M. J. Tannenbaum

This document presents a selection of QCD studies accessible to high-precision studies with hadronic final states in $e^+e^-$ collisions at Belle II. The exceptionally clean environment and the state-of-the-art capabilities of the Belle~II…

Measurements of hadron production in pp collisions by the ATLAS and CMS experiments are presented, including charged particle transverse momentum, pseudorapidity and event-by-event multiplicity distributions at sqrt(s) = 0.9, 2.36 and 7…

High Energy Physics - Experiment · Physics 2015-06-03 Romain Rougny

The large center of mass energy and increasing statistical precision for a wide range of hadronic final state observables at the HERA lepton-proton collider has provided a detailed testing ground for QCD dynamics. Fully flexible…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. Mirkes

The N-jettiness event shape divides phase space into N+2 regions, each containing one jet or beam. These jet regions are insensitive to the distribution of soft radiation and, with a geometric measure for N-jettiness, have circular…

High Energy Physics - Phenomenology · Physics 2015-05-30 Teppo T. Jouttenus , Iain W. Stewart , Frank J. Tackmann , Wouter J. Waalewijn

We present in detail a calculation of the next-to-leading order QCD corrections to the process $e^+e^-\to 3$ jets with massive quarks. To isolate the soft and collinear divergencies of the four parton matrix elements, we modify the phase…

High Energy Physics - Phenomenology · Physics 2009-10-30 Arnd Brandenburg , Peter Uwer

We study the moments of hadronic event shapes in $e^+e^-$ annihilation within the context of next-to-next-to-leading order (NNLO) perturbative QCD predictions combined with non-perturbative power corrections in the dispersive model. This…

High Energy Physics - Phenomenology · Physics 2014-11-20 T. Gehrmann , M. Jaquier , G. Luisoni

With the explosion of data on jet based observables in relativistic heavy-ion collisions at the Large Hadron Collider and the Relativistic Heavy-Ion Collider, perturbative QCD based simulations of these processes, often interacting with an…

High Energy Physics - Phenomenology · Physics 2024-01-19 Shanshan Cao , Abhijit Majumder , Rouzbeh Modarresi-Yazdi , Ismail Soudi , Yasuki Tachibana

Beside its intrinsic interest for the insights it can give into color confinement, knowledge of the space-time evolution of hadronization is very important for correctly interpreting jet-quenching data in heavy ion collisions and extracting…

Nuclear Theory · Physics 2011-09-13 Alberto Accardi

We investigate the transverse dynamics in Au+Au collisions at \sqrt{s_NN}=200 GeV by emphasis upon the interplay between soft and hard components through p_T dependences of particle spectra, ratios of yields, suppression factors, and…

Nuclear Theory · Physics 2009-11-10 Tetsufumi Hirano , Yasushi Nara

We propose a new phenomenological approach to establish QCD factorization of jet cross sections in the heavy-ion environment. Starting from a factorization formalism in proton-proton collisions, we introduce medium modified jet functions to…

High Energy Physics - Phenomenology · Physics 2019-07-03 Jian-Wei Qiu , Felix Ringer , Nobuo Sato , Pia Zurita