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相关论文: Identifying a new particle with jet substructures

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We present the RODEM Jet Datasets, a comprehensive collection of simulated large-radius jets designed to support the development and evaluation of machine-learning algorithms in particle physics. These datasets encompass a diverse range of…

高能物理 - 唯象学 · 物理学 2024-08-22 Knut Zoch , John Andrew Raine , Debajyoti Sengupta , Tobias Golling

Jet tagging has become an essential tool for new physics searches at the high-energy frontier. For jets that contain energetic charged leptons we introduce Feature Extended Supervised Tagging (FEST) which, in addition to jet substructure,…

高能物理 - 唯象学 · 物理学 2021-09-01 J. A. Aguilar-Saavedra

In high-energy particle collisions, the reconstruction of secondary vertices from heavy-flavour hadron decays is crucial for identifying and studying jets initiated by $b$- or $c$-quarks. Traditional methods, while effective, require…

高能物理 - 实验 · 物理学 2024-11-08 Samuel Van Stroud , Nikita Pond , Max Hart , Jackson Barr , Sébastien Rettie , Gabriel Facini , Tim Scanlon

Interactions of hard partons in the Quark Gluon Plasma (QGP) created with relativistic heavy ion collisions lead to characteristic modifications of the internal structure of reconstructed jets. A large part of the observed jet sub-structure…

高能物理 - 唯象学 · 物理学 2022-08-01 José Guilherme Milhano , Korinna Zapp

A search for heavy resonances decaying to a Higgs boson and a vector boson is presented. The analysis is performed using data samples collected in 2015 by the CMS experiment at the LHC in proton-proton collisions at a center-of-mass energy…

高能物理 - 实验 · 物理学 2017-03-07 CMS Collaboration

This Letter applies the concept of `jets', as constructed from calorimeter cell four-vectors, to jets composed (primarily) of photons (or leptons). Thus jets become a superset of both traditional objects such as QCD-jets, photons, and…

高能物理 - 唯象学 · 物理学 2013-03-27 Stephen D. Ellis , Tuhin S. Roy , Jakub Scholtz

The separation of quark and gluon initiated jets can be an important way to improve the sensitivity in searches for new physics or in measurements of Higgs boson properties. We present a simplified version of the shower deconstruction…

高能物理 - 唯象学 · 物理学 2017-02-28 Danilo Ferreira de Lima , Petar Petrov , Davison Soper , Michael Spannowsky

The jet-jet profile, or detailed manner, in which transverse energy and mass are distributed around the jet-jet system resulting from the hadronic decay of a $Z$ boson in the process Higgs$\to ZZ$ at a proton-proton collider energy of…

高能物理 - 唯象学 · 物理学 2009-10-22 R. D. Field , P. A. Griffin

A measurement of jet substructure observables is presented using $\mathrm{t\overline{t}}$ events in the lepton+jets channel from proton-proton collisions at $\sqrt{s} =$ 13 TeV recorded by the CMS experiment at the LHC, corresponding to an…

高能物理 - 实验 · 物理学 2018-12-05 CMS Collaboration

Jet substructure is typically studied using clustering algorithms, such as kT, which arrange the jets' constituents into trees. Instead of considering a single tree per jet, we propose that multiple trees should be considered, weighted by…

高能物理 - 唯象学 · 物理学 2013-05-30 Stephen D. Ellis , Andrew Hornig , David Krohn , Tuhin S. Roy , Matthew D. Schwartz

We introduce a novel approach to jet tagging and classification through the use of techniques inspired by computer vision. Drawing parallels to the problem of facial recognition in images, we define a jet-image using calorimeter towers as…

高能物理 - 唯象学 · 物理学 2015-09-09 Josh Cogan , Michael Kagan , Emanuel Strauss , Ariel Schwartzman

Recent literature on deep neural networks for tagging of highly energetic jets resulting from top quark decays has focused on image based techniques or multivariate approaches using high-level jet substructure variables. Here, a sequential…

高能物理 - 实验 · 物理学 2017-08-10 Jannicke Pearkes , Wojciech Fedorko , Alison Lister , Colin Gay

A search for a heavy resonance decaying into a top quark and a W boson in proton-proton collisions at $\sqrt{s} =$ 13 TeV is presented. The data analyzed were recorded with the CMS detector at the LHC and correspond to an integrated…

高能物理 - 实验 · 物理学 2022-08-09 CMS Collaboration

Jet substructure and differential cross sections for jets produced in the photoproduction and deep inelastic ep scattering regimes have been measured with the ZEUS detector at HERA using an integrated luminosity of 82.2 pb-1. The…

高能物理 - 实验 · 物理学 2008-11-26 the ZEUS Collaboration , S. Chekanov

The development of techniques for identifying hadronic signals from the overwhelming multi-jet backgrounds is an important part of the Large Hadron Collider (LHC) program. Of prime importance are resonances decaying into a pair of partons,…

高能物理 - 唯象学 · 物理学 2015-03-05 Eder Izaguirre , Brian Shuve , Itay Yavin

Events with vector bosons produced in association with jets have been extensively studied at hadron colliders and provide high-accuracy tests of the Standard Model. A good understanding of these processes is of paramount importance for…

高能物理 - 实验 · 物理学 2021-12-06 Alessandro Tricoli , Marek Schönherr , Paolo Azzurri

The suppression of the yield of high transverse momentum $p_{T}$ hadrons in heavy-ion collisions, referred to as "jet-quenching", has now developed into a comprehensive science. Jets are now used as probes of a variety of properties of the…

高能物理 - 唯象学 · 物理学 2009-11-18 Abhijit Majumder

The distribution of particles inside hadronic jets produced in the decay of boosted $W$ and $Z$ bosons can be used to discriminate such jets from the continuum background. Given that a jet has been identified as likely resulting from the…

高能物理 - 实验 · 物理学 2016-06-01 ATLAS Collaboration

We introduce a new jet observable {\em zest} defined on exclusively constructed jets and study its potential to discriminate jets originated from Standard Model heavy particles like $W,~Z$ bosons and top quark from gluon initiated jets.…

高能物理 - 唯象学 · 物理学 2021-01-04 Ankita Budhraja , Ambar Jain