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相关论文: New features in version 2 of the fastNLO project

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We present a method for very fast repeated computations of higher-order cross sections in hadron-induced processes for arbitrary parton density functions. A full implementation of the method for computations of jet cross sections in…

高能物理 - 唯象学 · 物理学 2017-08-23 T. Kluge , K. Rabbertz , M. Wobisch

Fast interpolation-grid frameworks facilitate an efficient and flexible evaluation of higher-order predictions for any choice of parton distribution functions or value of the strong coupling $\alpha_s$. They constitute an essential tool for…

The extension of interpolation-grid frameworks for perturbative QCD calculations at next-to-next-to-leading order (NNLO) is presented for deep inelastic scattering (DIS) processes. A fast and flexible evaluation of higher-order predictions…

A method to facilitate the consistent inclusion of cross-section measurements based on complex final-states from HERA, TEVATRON and the LHC in proton parton density function (PDF) fits has been developed. This can be used to increase the…

We present FMNLO, a framework to combine general-purpose Monte Carlo generators and fragmentation functions (FFs). It is based on a hybrid scheme of phase-space slicing method and local subtraction method, and accurate to next-to-leading…

高能物理 - 唯象学 · 物理学 2024-01-09 ChongYang Liu , XiaoMin Shen , Bin Zhou , Jun Gao

We present a new general algorithm for calculating arbitrary jet cross sections in arbitrary scattering processes to next-to-leading accuracy in perturbative QCD. The algorithm is based on the subtraction method. The key ingredients are new…

高能物理 - 唯象学 · 物理学 2009-10-28 Stefano Catani , Michael H. Seymour

We present an event-file format for the dissemination of next-to-leading-order (NLO) predictions for QCD processes at hadron colliders. The files contain all information required to compute generic jet-based infrared-safe observables at…

高能物理 - 唯象学 · 物理学 2015-06-17 Z. Bern , L. J. Dixon , F. Febres Cordero , S. Hoeche , H. Ita , D. A. Kosower , D. Maitre

We present a full next-to-leading order (NLO) QCD corrections to diphoton production at the hadron colliders in both standard model and ADD model. The invariant mass and rapidity distributions of the diphotons are obtained using a…

高能物理 - 唯象学 · 物理学 2009-02-02 M. C. Kumar , Prakash Mathews , V. Ravindran , Anurag Tripathi

We release fastNLO tables with NNLO QCD top-quark pair differential distributions corresponding to 8 TeV ATLAS [Eur. Phys. J. C 76 538 (2016)] and CMS [Eur. Phys. J. C 75 542 (2015)] measurements. This is the first time fastNLO tables with…

高能物理 - 唯象学 · 物理学 2017-04-28 Michal Czakon , David Heymes , Alexander Mitov

We describe how the nested soft-collinear subtraction scheme [1] can be used to compute the next-to-next-to-leading order (NNLO) QCD corrections to the production of an arbitrary number of gluonic jets in hadron collisions. We show that the…

高能物理 - 唯象学 · 物理学 2025-03-20 Federica Devoto , Kirill Melnikov , Raoul Röntsch , Chiara Signorile-Signorile , Davide Maria Tagliabue

We calculate the cross section for the inclusive production of single hadrons with finite transverse momenta in deep-inelastic scattering at next-to-leading order (NLO), i.e. through O(alpha_s^2), in the parton model of QCD endowed with…

高能物理 - 唯象学 · 物理学 2010-11-05 B. A. Kniehl , G. Kramer , M. Maniatis

Any NLO calculation of a QCD final-state observable involves Monte Carlo integration over a large number of events. For DIS and hadron colliders this must usually be repeated for each new PDF set, making it impractical to consider many…

高能物理 - 唯象学 · 物理学 2007-05-23 Tancredi Carli , Gavin P. Salam , Frank Siegert

We present the Monte Carlo integration code MoCaNLO, which computes cross sections and distributions for processes at high-energy colliders like the LHC at leading and next-to-leading order (NLO) in the strong and electroweak couplings. It…

高能物理 - 唯象学 · 物理学 2026-02-24 A. Denner , D. Lombardi , S. Lopez Portillo Chavez , M. Pellen , G. Pelliccioli

We briefly describe a new general algorithm for carrying out QCD calculations to next-to-leading order in perturbation theory. The algorithm can be used for computing arbitrary jet cross sections in arbitrary processes and can be…

高能物理 - 唯象学 · 物理学 2007-05-23 Stefano Catani , Michael H. Seymour

The next-to-leading order (NLO) evolution of the parton distribution functions (PDFs) in QCD is a common tool in the lepton-hadron and hadron-hadron collider data analysis. The standard NLO DGLAP evolution is formulated for inclusive…

高能物理 - 唯象学 · 物理学 2010-02-02 S. Jadach , M. Skrzypek , A. Kusina , M. Slawinska

In my talk I gave a status update on the extension of the CoLoRFulNNLO subtraction method for computing QCD jet cross sections with hadrons in the initial state. The scheme has been fully worked out previously for electron-positron…

高能物理 - 唯象学 · 物理学 2018-07-16 Adam Kardos , Giuseppe Bevilacqua , Gábor Somogyi , Zoltán Trócsányi , Zoltán Tulipánt

The cross-sections of diffractive double hadron photo- or electroproduction with large $p_T$, on a nucleon or a nucleus, are calculated to NLO accuracy. A hybrid formalism mixing collinear factorization and high energy small-$x$…

高能物理 - 唯象学 · 物理学 2023-04-05 Michael Fucilla , Andrey V. Grabovsky , Emilie Li , Lech Szymanowski , Samuel Wallon

We present a determination of parton distribution functions (ABM11) and the strong coupling constant alpha_s at next-to-leading order and next-to-next-to-leading order (NNLO) in QCD based on world data for deep-inelastic scattering and…

高能物理 - 唯象学 · 物理学 2015-06-04 S. Alekhin , J. Blumlein , S. Moch

The next-to-leading order (NLO) evolution of the parton distribution functions (PDF's) in QCD is the "industry standard" in the lepton-hadron and hadron-hadron collider data analysis. The standard NLO DGLAP evolution is formulated for…

高能物理 - 唯象学 · 物理学 2009-10-02 S. Jadach , M. Skrzypek

We present next-to-leading order (NLO) perturbative-QCD calculations of the cross sections for $\ell N\to h X$ and $\ell N\to \mathrm{jet}\, X$. The main feature of these processes is that the scattered lepton is not observed, so that the…

高能物理 - 唯象学 · 物理学 2016-06-03 Patriz Hinderer , Marc Schlegel , Werner Vogelsang
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