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Differential photoproduction cross sections are measured for events containing D* mesons. The data were taken with the H1 detector at the ep collider HERA and correspond to an integrated luminosity of 51.1 pb-1. The kinematic region covers…

高能物理 - 实验 · 物理学 2012-08-27 H1 Collaboration

Recent results on di-jet, inclusive jets, production at high p_T in Deep Inelastic Scattering DIS and photoproduction gamma p regimes using both the H1 and ZEUS detectors at HERA are presented. Also studies of integrated jet shape and jet…

高能物理 - 实验 · 物理学 2019-08-14 N. Coppola

Deep-inelastic ep scattering data, taken with the H1 detector at HERA, are used to study the event shape variables thrust, jet broadening, jet mass, C parameter and two kinds of differential two-jet rate. The data cover a large range of the…

高能物理 - 实验 · 物理学 2008-11-26 H1 Collaboration , C. Adloff

The azimuthal distribution of jets produced in the Breit frame in high-Q**2 deep inelastic e+p scattering has been studied with the ZEUS detector at HERA using an integrated luminosity of 38.6 pb-1. The measured azimuthal distribution shows…

高能物理 - 实验 · 物理学 2012-08-27 ZEUS Collaboration

We study the transverse momentum ($p_T$) spectrum of charged particles produced in deep inelastic scattering (DIS) at small Bjorken $x$ in the central region between the current jet and the proton remnants. We calculate the spectrum at…

高能物理 - 唯象学 · 物理学 2011-09-13 J. Kwiecinski , S. C. Lang , A. D. Martin

HERA has provided a wealth of high precision structure function and jet production data, allowing considerable progress to be made in understanding the structure of the proton. In this paper, several of the most recent proton structure…

高能物理 - 实验 · 物理学 2014-11-17 C. Gwenlan

Three- and four-jet final states have been measured in photoproduction at HERA using the ZEUS detector with an integrated luminosity of 121 pb^-1. The results are presented for jets with transverse energy E_T^jet>6 GeV and pseudorapidity…

高能物理 - 实验 · 物理学 2008-11-26 ZEUS Collaboration , S. Chekanov

Inclusive jet production (e+e- -> e+e- +jet+X) is studied in collisions of quasi-real photons radiated by the LEP beams at e+e- centre-of-mass energies sqrt see from 189 to 209 GeV. Jets are reconstructed using the kp jet algorithm. The…

高能物理 - 实验 · 物理学 2010-04-21 The OPAL collaboration

Measurements of transverse energy flow are presented for neutral current deep-inelastic scattering events produced in positron-proton collisions at HERA. The kinematic range covers squared momentum transfers Q^2 from 3.2 to 2,200 GeV^2, the…

高能物理 - 实验 · 物理学 2008-11-26 C. Adloff

This paper presents measurements of D^{*\pm} production in deep inelastic scattering from collisions between 27.5 GeV positrons and 820 GeV protons. The data have been taken with the ZEUS detector at HERA. The decay channel $D^{*+}\to (D^0…

高能物理 - 实验 · 物理学 2012-08-27 ZEUS Collaboration

We study incoherent diffractive production of two and three jets in electron-nucleus deep inelastic scattering (DIS) at small $x_{\scriptscriptstyle \rm Bj}$ using the color dipole picture and the effective theory of the Color Glass…

高能物理 - 唯象学 · 物理学 2024-07-26 Benjamin Rodriguez-Aguilar , D. N. Triantafyllopoulos , S. Y. Wei

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…

核实验 · 物理学 2014-11-04 ALICE Collaboration

Jet substructure observables are crucial for exploring the effects of the hot, dense medium and differentiating between quark and gluon jets. In this paper, we investigate the modification of jet shape by calculating the differential girth…

高能物理 - 唯象学 · 物理学 2023-02-28 Si-Yu Tang , Wei Zhang , Wen-Di Deng , Cheng-De Tian , Fan Yang , Ren-Zhuo Wan

The relationship between jet production in the central region and the underlying-event activity in a pseudorapidity-separated region is studied in 4.0 pb$^{-1}$ of $\sqrt{s} = 2.76$ TeV $pp$ collision data recorded with the ATLAS detector…

高能物理 - 实验 · 物理学 2016-03-11 ATLAS Collaboration

We predict cross sections in deep inelastic scattering (DIS) for the production of two jets---one along the proton beam direction created by initial state radiation (ISR) and another created by final state radiation after the hard…

高能物理 - 唯象学 · 物理学 2013-09-12 Daekyoung Kang , Christopher Lee , Iain W. Stewart

We study exclusive dijet production in coherent diffractive processes in deep inelastic scattering and real (and virtual) photon-hadron ($\gamma^{(*)}$-h) collisions in the Color Glass Condensate formalism at leading order. We show that the…

高能物理 - 唯象学 · 物理学 2016-05-24 Tolga Altinoluk , Néstor Armesto , Guillaume Beuf , Amir H. Rezaeian

We give an overview of jet physics in deeply inelastic scattering at HERA. The problem of jet definitions, the scale dependence of jet cross sections and some applications are discussed. (Talk presented at the Workshop on Deeply Inelastic…

高能物理 - 唯象学 · 物理学 2007-05-23 DIRK GRAUDENZ

We present the first study of charged-hadron production associated with jets originating from b quarks in proton-proton collisions at a center-of-mass energy of 5.02 TeV. The data sample used in this study was collected with the CMS…

高能物理 - 实验 · 物理学 2021-05-14 CMS Collaboration

A QCD analysis of jet production in deep-inelastic scattering is presented. The studies are based on recent measurements of jet cross sections in the H1 experiment at HERA which are directly sensitive to the gluon density in the proton. The…

高能物理 - 唯象学 · 物理学 2019-08-14 Markus Wobisch

Deep-inelastic scattering data in the range 150 < Q^2 < 35000 GeV^2 are used to investigate the minimum jet separation necessary to allow accurate description of the rate of dijet production using next-to-leading order perturbative QCD…

高能物理 - 实验 · 物理学 2008-11-26 H1 Collaboration , C. Adloff