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相关论文: Low-energy theory of jet processes and PDF factori…

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We analyze the low-energy dynamics of gap-between-jets cross sections at hadron colliders, for which phase factors in the hard amplitudes spoil collinear cancellations and lead to double (``super-leading'') logarithmic behavior. Based on a…

高能物理 - 唯象学 · 物理学 2024-08-21 Thomas Becher , Patrick Hager , Sebastian Jaskiewicz , Matthias Neubert , Dominik Schwienbacher

We present a systematic formalism based on a factorization theorem in soft-collinear effective theory to describe non-global observables at hadron colliders, such as gap-between-jets cross sections. The cross sections are factorized into…

高能物理 - 唯象学 · 物理学 2024-09-17 Thomas Becher , Matthias Neubert , Ding Yu Shao , Michel Stillger

We present a factorization formula for the energy-energy correlator in the collinear limit for the case of heavy ion collisions. Employing Soft Collinear Effective Theory, we provide a complete framework for jet production and evolution by…

高能物理 - 唯象学 · 物理学 2024-08-07 Balbeer Singh , Varun Vaidya

From a detailed analysis of cone-jet cross sections in effective field theory, we obtain novel factorization theorems which separate the physics associated with different energy scales present in such processes. The relevant low-energy…

高能物理 - 唯象学 · 物理学 2017-05-08 Thomas Becher , Matthias Neubert , Lorena Rothen , Ding Yu Shao

The perturbatively-stable scheme of Next-to-Leading order (NLO) calculations of cross-sections for multi-scale hard-processes in DIS-like kinematics is developed in the framework of High-Energy Factorization. The evolution equation for…

高能物理 - 唯象学 · 物理学 2020-08-14 Maxim Nefedov

Jet grooming algorithms are widely used in experimental analyses at hadron colliders to remove contaminating radiation from within jets. While the algorithms perform a great service to the experiments, their intricate algorithmic structure…

高能物理 - 唯象学 · 物理学 2016-08-24 Christopher Frye , Andrew J. Larkoski , Matthew D. Schwartz , Kai Yan

It has been known for many years that jet cross sections at hadron colliders exhibit double-logarithmic corrections starting at four-loop order, arising from two soft Glauber-gluon interactions between the two colliding partons. The…

高能物理 - 唯象学 · 物理学 2023-10-17 Philipp Böer , Matthias Neubert , Michel Stillger

We derive the scheme of NLO computations of generic observables in high-energy hadron-hadron collisions within the framework of high-energy factorization (HEF) with one off-shell initial-state parton, by taking a high-energy limit of the…

高能物理 - 唯象学 · 物理学 2025-02-21 Andreas van Hameren , Maxim Nefedov

We illustrate how electron Parton Distribution Functions (PDFs) with next-to-leading collinear logarithmic accuracy must be employed in the context of perturbative predictions for high-energy $e^+e^-$-collision processes. In particular, we…

高能物理 - 唯象学 · 物理学 2022-09-23 V. Bertone , M. Cacciari , S. Frixione , G. Stagnitto , M. Zaro , X. Zhao

A definition of partonic jet flavor that is both theoretically well-defined and experimentally robust would have profound implications for measurements and predictions especially for heavy flavor applications. Recently, a definition of jet…

高能物理 - 唯象学 · 物理学 2024-01-05 Andrew J. Larkoski , Duff Neill

A persistent and fascinating problem at the high energy colliders are jets. Often trying to observe physics underlying the hard interactions at colliders requires experimental cuts in phase space, defining several jet or beam regions. QCD…

高能物理 - 唯象学 · 物理学 2015-09-01 Duff Neill

The precision description of jet production plays an important role in many aspects of collider physics. In a recent paper we have presented a new factorization theorem for inclusive small radius jet production. The jet function appearing…

高能物理 - 唯象学 · 物理学 2024-10-04 Kyle Lee , Ian Moult , Xiaoyuan Zhang

We introduce a novel approach to high-energy QCD factorization of cross-sections for processes involving a dilute projectile and a dense target. Our method preserves the factorization between "fast" and "slow" modes in the longitudinal…

高能物理 - 唯象学 · 物理学 2025-09-25 Renaud Boussarie , Paul Caucal , Yacine Mehtar-Tani

We derive an all-order factorization theorem for the narrow jet broadening event shape, a measure of the transverse momentum in jet events. This is a non-global observable which receives logarithmically enhanced contributions associated…

高能物理 - 唯象学 · 物理学 2017-10-25 Thomas Becher , Rudi Rahn , Ding Yu Shao

We consider electroweak radiative corrections to hard inclusive processes at the TeV scale, and we investigate how collinear logarithms factorize in a spontaneously broken gauge theory, similarly to the DGLAP analysis in QCD. Due to the…

高能物理 - 唯象学 · 物理学 2009-11-07 M. Ciafaloni , P. Ciafaloni , D. Comelli

We introduce collinear drop jet substructure observables, which are unaffected by contributions from collinear radiation, and systematically probe soft radiation within jets. These observables can be designed to be either sensitive or…

高能物理 - 唯象学 · 物理学 2020-07-15 Yang-Ting Chien , Iain W. Stewart

Soft-collinear effective theory is used to prove factorization of the B->gamma+l+nu decay amplitude at leading power in Lambda/m_b, including a demonstration of the absence of non-valence Fock states and of the finiteness of the convolution…

高能物理 - 唯象学 · 物理学 2008-11-26 S. W. Bosch , R. J. Hill , B. O. Lange , M. Neubert

We develop the framework to perform all-orders resummation of electroweak logarithms of Q/M for inclusive scattering processes at energies Q much above the electroweak scale M. We calculate all ingredients needed at next-to-leading…

高能物理 - 唯象学 · 物理学 2018-09-26 Aneesh V. Manohar , Wouter J. Waalewijn

We extend the class of factorization theorems for non-global observables from fixed angular constraints to cross sections defined in terms of sequential jet clustering. The associated hard and soft functions depend not only on the…

高能物理 - 唯象学 · 物理学 2023-10-02 Thomas Becher , Jürg Haag

Renormalization group evolution equations describing the scale dependence of quantities in quantum chromodynamics (QCD) play a central role in the interpretation of experimental data. Arguably the most important evolution equations for…

高能物理 - 唯象学 · 物理学 2022-10-20 Hao Chen , Max Jaarsma , Yibei Li , Ian Moult , Wouter J. Waalewijn , Hua Xing Zhu
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