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相关论文: Fitting the Strong Coupling Constant with Soft-Dro…

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The moments of the single inclusive momentum distribution of hadrons in QCD jets, are studied in the next-to-modified-leading-log approximation (NMLLA) including next-to-leading-order (NLO) corrections to the alpha_s strong coupling. The…

高能物理 - 唯象学 · 物理学 2014-08-18 Redamy Perez-Ramos , David d'Enterria

Data from e+e- annihilation into hadrons collected by the JADE experiment at centre-of-mass energies between 14 GeV and 44 GeV were used to study the four-jet rate as a function of the Durham algorithm's resolution parameter y_cut. The…

高能物理 - 实验 · 物理学 2007-05-23 J. Schieck , S. Kluth , S. Bethke , P. A. Movilla Fernandez , C. Pahl , the JADE Collaboration

We describe the calculation of integrated subtraction terms in the nested soft-collinear subtraction scheme for hadron collider processes with quarks and gluons, thereby extending the results presented in Ref.$~$[1]. Although this extension…

Solid contacts involving soft materials are important in mechanical engineering or biomechanics. Experimentally, such contacts have been shown to shrink significantly under shear, an effect which is usually explained using adhesion models.…

软凝聚态物质 · 物理学 2020-07-07 J. Lengiewicz , M. de Souza , M. Lahmar , C. Courbon , D. Dalmas , S. Stupkiewicz , J. Scheibert

A thrust analysis of Large-Rapidity-Gap events in deep-inelastic ep collisions is presented, using data taken with the H1 detector at HERA in 1994. The average thrust of the final states X, which emerge from the dissociation of virtual…

高能物理 - 实验 · 物理学 2008-11-26 C. Adloff

We estimate the effects of non-perturbative physics on the differential distributions of infrared- and collinear-safe $e^+e^-$ event shape variables, by extending the notion of an infrared-regular effective strong coupling, which accounts…

高能物理 - 唯象学 · 物理学 2009-10-30 Yu. L. Dokshitzer , B. R. Webber

We utilize an exact variational numerical procedure to calculate the ground state properties of a polaron in the presence of a Rashba-like spin orbit interaction. Our results corroborate with previous work performed with the Momentum…

强关联电子 · 物理学 2011-07-11 Zhou Li , L. Covaci , M. Berciu , D. Baillie , F. Marsiglio

The QCD coupling alpha_s is determined at NLO*+NMLLA accuracy from the comparison of experimental jet data to theoretical predictions of the energy-evolution of the parton-to-hadron fragmentation function moments (multiplicity, peak, width,…

高能物理 - 唯象学 · 物理学 2014-10-20 David d'Enterria , Redamy Pérez-Ramos

The consistency relations in large scale structure relate the lower-order correlation functions with their higher-order counterparts. They are direct outcome of the underlying symmetries of a dynamical system and can be tested using data…

宇宙学与河外天体物理 · 物理学 2017-06-23 Dipak Munshi , Donough Regan

The pseudorapidity ($\eta$) distributions of charged hadrons are measured using data collected at the highest ever nucleon-nucleon center-of-mass energy of $\sqrt{s_\mathrm{NN}}$ = 5.36 TeV for collisions of lead-lead ions. The data were…

高能物理 - 实验 · 物理学 2025-02-11 CMS Collaboration

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 rates over a large range of ``relevant…

高能物理 - 实验 · 物理学 2009-10-31 K. Rabbertz

Studies of hadron production in proton-proton collisions, including charged particle transverse momentum, pseudo-rapidity and event-by-event multiplicity distributions at \sqrt{s} = 0.9, 2.36 and 7 TeV are shown. Measured spectra of…

高能物理 - 实验 · 物理学 2019-08-13 Yuan Chao

We measure the strong coupling constant at NNLO corrections. We do this analysis with moments of event shape variables: thrust, C parameter, heavy jet mass, wide and total jet broadening, by fitting the L3 and DELPHI data with NNLO model.…

高能物理 - 唯象学 · 物理学 2015-06-19 L. Khajooee , T. Kalalian , R. Saleh-Moghaddam , A. Sepehri , M. E. Zomorrodian

We present a general framework for the calculation of soft functions for SCET_I observables through next-to-next-to-leading order (NNLO) in the strong coupling constant. As an example of our formalism we show how it can be used to obtain…

高能物理 - 唯象学 · 物理学 2015-06-03 Radja Boughezal , Xiaohui Liu , Frank Petriello

The production of hard photons in hadronic collisions is studied using Soft-Collinear Effective Theory (SCET). This is the first application of SCET to a physical, observable cross section involving energetic partons in more than two…

高能物理 - 唯象学 · 物理学 2012-02-10 Thomas Becher , Matthew D. Schwartz

This article presents measurements of the groomed jet radius and momentum splitting fraction in pp collisions at $\sqrt{s}=5.02$ TeV with the ALICE detector at the Large Hadron Collider. Inclusive charged-particle jets are reconstructed at…

核实验 · 物理学 2023-06-22 ALICE Collaboration

Fragmentation of heavy quarks into heavy-flavoured hadrons receives both perturbative and non-perturbative contributions. We consider perturbative QCD corrections to heavy quark production in $e^+e^-$ collisions to next-to-next-to-leading…

高能物理 - 唯象学 · 物理学 2024-06-12 Leonardo Bonino , Matteo Cacciari , Giovanni Stagnitto

This article presents groomed jet substructure measurements in pp and Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV with the ALICE detector. The Soft Drop grooming algorithm provides access to the hard parton splittings inside a jet…

核实验 · 物理学 2022-04-11 ALICE Collaboration

We consider cumulant moments (cumulants) of the thrust distribution using predictions of the full spectrum for thrust including O(alpha_s^3) fixed order results, resummation of singular N^3LL logarithmic contributions, and a class of…

高能物理 - 唯象学 · 物理学 2013-05-30 Riccardo Abbate , Michael Fickinger , Andre H. Hoang , Vicent Mateu , Iain W. Stewart

We present a determination of the strong coupling constant $\alpha_s(m_Z)$ based on the NNPDF3.1 determination of parton distributions, which for the first time includes constraints from jet production, top-quark pair differential…

高能物理 - 唯象学 · 物理学 2018-07-10 Richard D. Ball , Stefano Carrazza , Luigi Del Debbio , Stefano Forte , Zahari Kassabov , Juan Rojo , Emma Slade , Maria Ubiali