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We present a variety of jet substructure measurements performed in pp collisions at $\sqrt{s}$ = 13 TeV with the focus on the groomed jet momentum fraction $z_{\rm{g}}$ in a wide range of $p_{\rm{T}}$ between 20 and 200 GeV/$c$ and jet…

高能物理 - 实验 · 物理学 2019-01-15 Markus Fasel

The analysis of two-particle azimuthal correlation function in p+p and Au+Au collisions at s(NN)**(1/2) 200 GeV/c is presented. The mean jet fragmentation transverse momentum <|mjTy|> and mean parton transverse momentum <|kTy|> are inferred…

核实验 · 物理学 2009-09-29 PHENIX collaboration , J. Rak

Studies of longitudinal correlations of the charged-particle multiplicity in heavy-ion collisions have provided insights into the asymmetry and fluctuations of the initial-state collision geometry. In addition to the expansion of the medium…

核实验 · 物理学 2022-01-26 Saehanseul Oh

In recent years certain experimental results from small collision systems (e.g. p-p, d-Au, p-Pb) at the RHIC and LHC have been reinterpreted as evidence for formation therein of a dense flowing medium (QGP) despite small collision volumes.…

高能物理 - 唯象学 · 物理学 2024-10-01 Thomas A. Trainor

Some aspects of hadron production in p-p collisions remain unresolved, including the low-hadron-momentum structure of high-parton-energy dijets, separation of triggered dijets from the underlying event (UE), the systematics of multiple…

高能物理 - 唯象学 · 物理学 2013-10-02 Thomas A. Trainor , Duncan J. Prindle

Azimuthal anisotropy ($v_2$) and two-particle angular correlations of high $p_T$ charged hadrons have been measured in Au+Au collisions at $\sqrt{s_{NN}}$=130 GeV for transverse momenta up to 6 GeV/c, where hard processes are expected to…

核实验 · 物理学 2012-08-27 STAR Collaboration

An established phenomenology and theoretical interpretation of $p$-$p$ collision data at lower collision energies should provide a reference for $p$-$p$ and other collision systems at higher energies, against which claims of novel physics…

高能物理 - 唯象学 · 物理学 2016-02-17 Thomas A. Trainor , Duncan J. Prindle

Angular correlation of jets produced in association with a massive scalar, vector or tensor boson is crucial in the determination of their spin and CP properties. We study jet angular correlations in events with a high mass bottom quark…

高能物理 - 唯象学 · 物理学 2013-05-08 Kaoru Hagiwara , Satyanarayan Mukhopadhyay

A newly developed observable for correlations between symmetry planes, which characterize the direction of the anisotropic emission of produced particles, is measured in Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 2.76$ TeV with ALICE. This…

核实验 · 物理学 2023-10-10 ALICE Collaboration

We describe a comprehensive survey of two-particle correlations from p-p collisions at $\sqrt{s} = 200$ GeV. Correlations on transverse rapidity $y_t$ are separated into a soft component (string fragments) and a hard component (parton…

高能物理 - 唯象学 · 物理学 2011-03-23 R Jefferson Porter , Thomas A Trainor

In a recent article (arXiv:1210.3890), we showed that high multiplicity di-hadron proton- proton (p+p) data from the CMS experiment are in excellent agreement with computations in the Color Glass Condensate (CGC) Effective Field Theory…

高能物理 - 唯象学 · 物理学 2013-03-27 Kevin Dusling , Raju Venugopalan

Within the Color Glass Condensate (CGC) effective field theory, we investigate the long-range rapidity correlations in proton-lead (p-Pb) collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV. A distinctive correlation rebound is observed, where…

高能物理 - 唯象学 · 物理学 2026-02-03 Donghai Zhang , Yeyin Zhao , Luhua Qiu , Mingmei Xu , Yuanfang Wu

The ALICE collaboration recently reported high-statistics $\bf p_t$ spectra from 5 TeV and 13 TeV p-p collisions with intent to determine the role of jets in high-multiplicity collisions. In the present study a two-component (soft + hard)…

高能物理 - 唯象学 · 物理学 2021-09-02 Thomas A. Trainor

Using a multiphase transport model that includes both initial partonic and final hadronic scatterings, we have studied higher-order anisotropic flows as well as dihadron correlations as functions of pseudorapidity and azimuthal angular…

核理论 · 物理学 2011-10-20 Jun Xu , Che Ming Ko

A method is derived to predict the structure of dijet-related hard components of trigger-associated (TA) hadron correlations from p-p collisions based on measured fragmentation functions (FFs) from e-e or p-pbar collisions and a…

高能物理 - 唯象学 · 物理学 2014-07-25 Thomas A. Trainor

Flow-like signals including the ridge structure observed in small collision systems that are similar to those in large collision systems have led to questions about the onset of collectivity in nuclear collisions. In this study, we use the…

核理论 · 物理学 2022-06-22 Xin-Li Zhao , Zi-Wei Lin , Liang Zheng , Guo-Liang Ma

Charge-dependent azimuthal particle correlations with respect to the second-order event plane in pPb and PbPb collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV have been studied with the CMS experiment at the LHC. The…

核实验 · 物理学 2017-03-29 CMS Collaboration

We demonstrate that in the framework of the event-by-event hydrodynamics followed by statistical hadronization, the proper charge conservation in the mechanism of hadron production provides the crucial non-flow component and leads to…

核理论 · 物理学 2012-08-14 Piotr Bozek , Wojciech Broniowski

Correlations in the azimuthal angle between the two largest transverse momentum jets have been measured using the D0 detector in pp-bar collisions at a center-of-mass energy sqrt(s)=1.96 TeV. The analysis is based on an inclusive dijet…

高能物理 - 实验 · 物理学 2008-11-26 D0 Collaboration , V. M. Abazov

Results of a two-particle correlation analysis of high-$p_t$ charged particles in Pb-Au collisions at 158$A$ GeV/$c$ are presented. The data have been recorded by the CERES experiment at the CERN-SPS. The correlations are studied as…

核实验 · 物理学 2012-08-27 CERES Collaboration