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Studying the substructure of jets has become a powerful tool for event discrimination and for studying QCD. Typically, jet substructure studies rely on Monte Carlo simulation for vetting their usefulness; however, when possible, it is also…

高能物理 - 唯象学 · 物理学 2015-03-20 Andrew J. Larkoski

The theoretical interpretation of jet observables in heavy-ion collisions is a complex task due to the intricate interplay of perturbative and non-perturbative effects. One way to reduce this complexity is to groom away soft, wide-angle…

高能物理 - 唯象学 · 物理学 2026-01-21 Liliana Apolinário , Diogo Costa , Alba Soto-Ontoso

A small drop that splashes into a deep liquid sometimes reappears as a small rising jet, for example when a water drop splashes into a pool or when coffee drips into a cup. Here we describe that the growing and rising jet continuously…

流体动力学 · 物理学 2018-11-06 Cees J. M. van Rijn , Willem G. N. van Heugten , Egbert Boeker

Many new physics models with strongly interacting sectors predict a mass hierarchy between the lightest vector meson and the lightest pseudoscalar mesons. We examine the power of jet substructure tools to extend the 7 TeV LHC sensitivity to…

高能物理 - 唯象学 · 物理学 2015-05-28 Yang Bai , Jessie Shelton

We introduce a new approach for jet physics studies using subtracted cumulants of jet substructure observables, which are shown to be insensitive to contributions from soft-particle emissions uncorrelated with the hard process. Therefore…

高能物理 - 唯象学 · 物理学 2019-11-06 Yang-Ting Chien , Daekyoung Kang , Kyle Lee , Yiannis Makris

In this paper we introduce a new approach to study jet substructure in the center-of-mass frame of the jet. We demonstrate that it can be used to discriminate the boosted heavy particles from the QCD jets and the method is complimentary to…

高能物理 - 唯象学 · 物理学 2015-03-19 Chunhui Chen

The superior performance of Deformable Convolutional Networks arises from its ability to adapt to the geometric variations of objects. Through an examination of its adaptive behavior, we observe that while the spatial support for its neural…

计算机视觉与模式识别 · 计算机科学 2018-11-29 Xizhou Zhu , Han Hu , Stephen Lin , Jifeng Dai

We introduce a novel jet substructure method which exploits the variation of observables with respect to a sampling of phase-space boundaries quantified by the variability. We apply this technique to identify boosted W boson and top quark…

高能物理 - 唯象学 · 物理学 2020-07-01 Yang-Ting Chien , Alex Emerman , Shih-Chieh Hsu , Samuel Meehan , Zachery Montague

The study of the substructure of collimated particles from quarks and gluons, or jets, has the promise to reveal the details how color charges interact with the QCD plasma medium created in colliders such as RHIC and the LHC. Traditional…

核理论 · 物理学 2018-10-05 Yue Shi Lai

Jet substructure tools have proven useful in a number of high-energy particle-physics studies. A particular case is the discrimination, or tagging, between a boosted jet originated from an electroweak boson (signal), and a standard QCD…

高能物理 - 唯象学 · 物理学 2018-12-26 Davide Napoletano , Gregory Soyez

We introduce a new class of event shapes to characterize the jet-like structure of an event. Like traditional event shapes, our observables are infrared/collinear safe and involve a sum over all hadrons in an event, but like a jet…

高能物理 - 唯象学 · 物理学 2015-06-17 Daniele Bertolini , Tucker Chan , Jesse Thaler

When light from a distant source object, like a galaxy or a supernova, travels towards us, it is deflected by massive objects that lie on its path. When the mass density of the deflecting object exceeds a certain threshold, multiple, highly…

宇宙学与河外天体物理 · 物理学 2019-09-06 Jenny Wagner

Refraction by the atmosphere causes the positions of sources to depend on the airmass through which an observation was taken. This shift is dependent on the underlying spectral energy of the source and the filter or bandpass through which…

天体物理仪器与方法 · 物理学 2019-05-01 Matthias Lee , Tamas Budavari , Ian Sullivan , Andrew Connolly

Observables which distinguish boosted topologies from QCD jets are playing an increasingly important role at the Large Hadron Collider (LHC). These observables are often used in conjunction with jet grooming algorithms, which reduce…

高能物理 - 唯象学 · 物理学 2018-04-04 Andrew J. Larkoski , Ian Moult , Duff Neill

We introduce an infinite set of jet substructure observables, derived as projections of $N$-point energy correlators, that are both convenient for experimental studies and maintain remarkable analytic properties derived from their…

高能物理 - 唯象学 · 物理学 2020-11-10 Hao Chen , Ian Moult , XiaoYuan Zhang , Hua Xing Zhu

Jet substructure in heavy-ion collisions is a rapidly evolving area with lots of intriguing new measurements. This contribution presents a selection of recent jet-substructure measurements from experiments at the LHC, in particular,…

核实验 · 物理学 2024-10-08 Robert Vertesi

A topological shape analysis is proposed and utilized to learn concepts that reflect shape commonalities. Our approach is two-fold: i) a spatial topology analysis of point cloud segment constellations within objects. Therein constellations…

计算机视觉与模式识别 · 计算机科学 2018-11-22 Christian A. Mueller , Andreas Birk

We introduce the first completely unsupervised correspondence learning approach for deformable 3D shapes. Key to our model is the understanding that natural deformations (such as changes in pose) approximately preserve the metric structure…

计算机视觉与模式识别 · 计算机科学 2018-12-07 Oshri Halimi , Or Litany , Emanuele Rodolà , Alex Bronstein , Ron Kimmel

We present a new method for the analysis of images, a fundamental task in observational astronomy. It is based on the linear decomposition of each object in the image into a series of localised basis functions of different shapes, which we…

天体物理学 · 物理学 2008-11-26 Alexandre Refregier

Boosted resonances is a highly probable and enthusiastic scenario in any process probing the electroweak scale. Such objects when decaying into jets can easily blend with the cornucopia of jets from hard relative light QCD states. We review…

高能物理 - 唯象学 · 物理学 2015-05-30 Leandro G. Almeida , Raz Alon , Michael Spannowsky