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A measurement of the dijet production cross section is reported based on proton-proton collision data collected in 2016 at $\sqrt{s}$ = 13 TeV by the CMS experiment at the CERN LHC, corresponding to an integrated luminosity of up to 36.3…

高能物理 - 实验 · 物理学 2025-02-03 CMS Collaboration

We discuss the status of resummation of large logarithmic contributions to groomed event shapes of hadronic final states in electron-positron annihilation. We identify the missing ingredients needed for next-to-next-to-next-to-leading…

高能物理 - 唯象学 · 物理学 2020-07-08 Adam Kardos , Andrew J. Larkoski , Zoltán Trócsányi

Jet vetoes play an important role in many analyses at the LHC. Traditionally, jet vetoes have been imposed using a restriction on the transverse momentum $p_{Tj}$ of jets. Alternatively, one can also consider jet observables for which…

高能物理 - 唯象学 · 物理学 2020-03-20 Shireen Gangal , Jonathan R. Gaunt , Maximilian Stahlhofen , Frank J. Tackmann

We study the factorization and resummation of t-channel top quark transverse momentum distribution at large pT in the SM at both the Tevatron and the LHC with soft-collinear effective theory. The cross section in the threshold region can be…

高能物理 - 唯象学 · 物理学 2013-02-21 Jian Wang , Chong Sheng Li , Hua Xing Zhu

Explicit applications of factorization theorems for processes at hadron colliders near the hadronic endpoint have largely focused on simple final states with either no jets (e.g., Drell-Yan) or one inclusive jet (e.g., deep inelastic…

高能物理 - 唯象学 · 物理学 2014-11-20 Christian W. Bauer , Nicholas Daniel Dunn , Andrew Hornig

Soft-Collinear Effective theory is used to perform threshold resummation for W and Z production at large transverse momentum to next-to-next-to-leading logarithmic accuracy including matching to next-to-leading fixed-order results. The…

高能物理 - 唯象学 · 物理学 2015-05-28 Thomas Becher , Christian Lorentzen , Matthew D. Schwartz

We identify and resum corrections associated with the kinematic recoil of the hard scattering against soft-gluon emission in single-particle inclusive cross sections. The method avoids double counting and conserves the flow of partonic…

高能物理 - 唯象学 · 物理学 2008-11-26 Eric Laenen , George Sterman , Werner Vogelsang

The two-prong structure related to the leading subjets inside a reconstructed jet opens new avenues toward precision constraints on the in-medium modification of parton showers. In this talk, we present the first resummed calculation of the…

高能物理 - 唯象学 · 物理学 2018-12-11 Hai Tao Li , Ivan Vitev

The study of amplitudes and cross sections in the soft and collinear limits allows for an understanding of their all orders behavior, and the identification of universal structures. At leading power soft emissions are eikonal, and described…

高能物理 - 唯象学 · 物理学 2020-04-08 Ian Moult , Iain W. Stewart , Gherardo Vita

Soft-Collinear Effective Theory (SCET) has been formulated since a decade now in covariant gauges. In this work we derive a modified SCET Lagrangian applicable in both classes of gauges: regular and singular ones. This extends the range of…

高能物理 - 唯象学 · 物理学 2011-08-08 Miguel Garcia-Echevarria , Ahmad Idilbi , Ignazio Scimemi

We revisit the azimuthal decorrelation $\delta\phi$ between a jet and a $Z$ boson produced at hadron colliders. Employing different recombination schemes for the jets leads to significantly different NLL-resummed predictions for the…

高能物理 - 唯象学 · 物理学 2022-10-06 Hamza Bouaziz , Yazid Delenda , Kamel Khelifa-Kerfa

We apply the soft-collinear effective theory (SCET) to deep inelastic scattering near the endpoint region. The forward scattering amplitude, and the structure functions are shown to factorize as a convolution of the Wilson coefficients, the…

高能物理 - 唯象学 · 物理学 2008-11-26 Junegone Chay , Chul Kim

With the ongoing Run 3 of the LHC and its upcoming High-Luminosity upgrade, there is a growing need to study observables with high precision both experimentally and theoretically. To increase precision on the theory side, improvements of…

高能物理 - 唯象学 · 物理学 2024-04-01 Federico Silvetti

We study the multiple soft gluon radiation effects in $Z$ boson plus jet production at the LHC. By applying the transverse momentum dependent factorization formalism, the large logarithms introduced by the small total transverse momentum of…

高能物理 - 唯象学 · 物理学 2019-10-02 Peng Sun , Bin Yan , C. -P. Yuan , Feng Yuan

Jet vetoes play an important role at the LHC in the search for the Higgs and ultimately in precise measurements of its properties. Many Higgs analyses divide the cross section into exclusive jet bins to maximize the sensitivity in different…

高能物理 - 唯象学 · 物理学 2014-03-26 Frank J. Tackmann , Jonathan R. Walsh , Saba Zuberi

We compare threshold resummation in QCD, as performed using soft-collinear effective theory (SCET), to the standard perturbative QCD formalism based on factorization and resummation of Mellin moments of partonic cross-sections. We consider…

高能物理 - 唯象学 · 物理学 2015-06-04 Marco Bonvini , Stefano Forte , Margherita Ghezzi , Giovanni Ridolfi

A model for total cross-sections incorporating QCD jet cross-sections and soft gluon resummation is described and compared with present data on $pp$ and ${\bar p}p$ cross-sections. Predictions for LHC are presented for different parameter…

高能物理 - 唯象学 · 物理学 2008-11-26 G. Pancheri , R. M. Godbole , A. Grau , Y. N. Srivastava

The Soft Collinear Effective Theory (SCET) is a powerful framework for studying factorization of amplitudes and cross sections in QCD. While factorization at leading power has been well studied, much less is known at subleading powers in…

高能物理 - 唯象学 · 物理学 2017-08-22 Ian Moult , Iain W. Stewart , Gherardo Vita

Many state-of-the-art QCD calculations for multileg processes use helicity amplitudes as their fundamental ingredients. We construct a simple and easy-to-use helicity operator basis in soft-collinear effective theory (SCET), for which the…

高能物理 - 唯象学 · 物理学 2016-05-11 Ian Moult , Iain W. Stewart , Frank J. Tackmann , Wouter J. Waalewijn

We present angularity differential cross-section for the deep inelastic scattering process (DIS) in the framework of soft-collinear effective theory (SCET). Using SCET, the cross-section is factorized in terms of hard, jet, beam and soft…

高能物理 - 唯象学 · 物理学 2021-06-29 Daekyoung Kang , Tanmay Maji