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We describe a method to measure and subtract the incoherent component of energy flow arising from multiple interactions from jet shape/substructure observables of ultra-massive jets. The amount subtracted is a function of the jet shape…

高能物理 - 唯象学 · 物理学 2013-05-29 Raz Alon , Ehud Duchovni , Gilad Perez , Aliaksandr P. Pranko , Pekka K. Sinervo

Discriminating between quark- and gluon-initiated jets has long been a central focus of jet substructure, leading to the introduction of numerous observables and calculations to high perturbative accuracy. At the same time, there have been…

高能物理 - 唯象学 · 物理学 2022-12-28 Samuel Bright-Thonney , Ian Moult , Benjamin Nachman , Stefan Prestel

Using a so-called hemispherical model we derive a general transport equation for cosmic ray and thermal particles scattered in pitch angle by magnetic inhomogeneities in a moving collisionless plasma. The weak scattering through 90 degrees…

天体物理学 · 物理学 2009-11-11 V. N. Zirakashvili

We present a transformer architecture-based foundation model for tasks at high-energy particle colliders such as the Large Hadron Collider. We train the model to classify jets using a self-supervised strategy inspired by the Joint Embedding…

机器学习 · 计算机科学 2025-02-07 Jai Bardhan , Radhikesh Agrawal , Abhiram Tilak , Cyrin Neeraj , Subhadip Mitra

A novel method is proposed here to precisely model the multi-dimensional features of QCD multi-jet events in hadron collisions. The method relies on the schematization of high-pT QCD processes as 2->2 reactions made complex by sub-leading…

高能物理 - 实验 · 物理学 2017-12-08 P. De Castro Manzano , M. Dall'Osso , T. Dorigo , L. Finos , G. Kotkowski , G. Menardi , B. Scarpa

The ability to measure similarity between documents enables intelligent summarization and analysis of large corpora. Past distances between documents suffer from either an inability to incorporate semantic similarities between words or from…

机器学习 · 计算机科学 2019-11-05 Mikhail Yurochkin , Sebastian Claici , Edward Chien , Farzaneh Mirzazadeh , Justin Solomon

The jets are the final state manifestation of the hard parton scattering. Since at LHC energies the production of hard processes in proton-proton collisions will be copious and varied, it is important to develop methods to identify them…

高能物理 - 实验 · 物理学 2009-12-07 Antonio Ortiz , Guy Paic

A number of methods have been proposed recently which exploit multiple highly-correlated interpretations of events, or of jets within an event. For example, Qjets reclusters a jet multiple times and telescoping jets uses multiple cone…

高能物理 - 唯象学 · 物理学 2015-06-22 Yang-Ting Chien , David Farhi , David Krohn , Andrew Marantan , David Lopez Mateos , Matthew Schwartz

Moving mesh methods are designed to redistribute a mesh in a regular way. This applied problem can be considered to overlap with the problem of finding a diffeomorphic mapping between density measures. In applications, an off-the-shelf grid…

数值分析 · 数学 2021-12-23 Axel G. R. Turnquist

Planet formation simulations are capable of directly integrating the evolution of hundreds to thousands of planetary embryos and planetesimals, as they accrete pairwise to become planets. In principle such investigations allow us to better…

地球与行星天体物理 · 物理学 2019-08-01 Saverio Cambioni , Erik Asphaug , Alexandre Emsenhuber , Travis S. J. Gabriel , Roberto Furfaro , Stephen R. Schwartz

This work considers the propagation of high-frequency waves in highly-scattering media where physical absorption of a nonlinear nature occurs. Using the classical tools of the Wigner transform and multiscale analysis, we derive semilinear…

偏微分方程分析 · 数学 2025-04-23 Joseph Kraisler , Wei Li , Kui Ren , John C. Schotland , Yimin Zhong

In this paper we extend recent developments in computational optimal transport to the setting of Riemannian manifolds. In particular, we show how to learn optimal transport maps from samples that relate probability distributions defined on…

Various features of the mass yields in heavy ion collisions are studied. The mass yields are discussed in terms of iterative one dimensional discrete maps. These maps are shown to produce orbits for a monomer or for a nucleus which generate…

核理论 · 物理学 2008-11-26 A. Z. Mekjian , S. J. Lee

We construct jet observables for energetic top quarks that can be used to determine a short distance top quark mass from reconstruction in e+ e- collisions with accuracy better than Lambda_{QCD}. Using a sequence of effective field theories…

高能物理 - 唯象学 · 物理学 2008-11-26 Sean Fleming , Andre H. Hoang , Sonny Mantry , Iain W. Stewart

We discuss the prospects of using jets as precision probes in electron-nucleus collisions at the future Electron-Ion Collider. Jets produced in deep-inelastic scattering can be calibrated by a measurement of the scattered electron. Such…

核实验 · 物理学 2020-08-03 Miguel Arratia , Youqi Song , Felix Ringer , Barbara V. Jacak

Efficient computation of optimal transport distance between distributions is of growing importance in data science. Sinkhorn-based methods are currently the state-of-the-art for such computations, but require $O(n^2)$ computations. In…

Traffic congestion is one of the major challenges faced by the transportation industry. While this problem carries a high economical and environmental cost, the need for an efficient design of optimal paths for passengers in multilayer…

物理与社会 · 物理学 2022-06-10 Abdullahi Adinoyi Ibrahim , Daniela Leite , Caterina De Bacco

Events containing hadronically decaying heavy particles with large momentum, leading to so-called merged jets, are expected to play a significant role in both searches for new physics and measurements of Standard Model processes at the CERN…

高能物理 - 实验 · 物理学 2011-09-06 Andrew Altheimer , Gustaaf Brooijmans

I explore many aspects of jet substructure at the Large Hadron Collider, ranging from theoretical techniques for jet calculations, to phenomenological tools for better searches with jets, to software for implementing and comparing such…

高能物理 - 唯象学 · 物理学 2015-03-17 Christopher K. Vermilion

Optimal Transport (OT) offers a powerful framework for finding correspondences between distributions and addressing matching and alignment problems in various areas of computer vision, including shape analysis, image generation, and…

计算机视觉与模式识别 · 计算机科学 2026-05-27 Xinran Liu , Elaheh Akbari , Rocio Diaz Martin , Navid NaderiAlizadeh , Soheil Kolouri