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We describe a new hit-based $b$-tagging technique for high energy jets and study its performance with a Geant4-based simulation. The technique uses the fact that at sufficiently high energy a B meson or baryon can live long enough to…

High Energy Physics - Experiment · Physics 2016-07-04 B. Todd Huffman , Charles Jackson , Jeff Tseng

The identification of jets containing a $b$-hadron, referred to as $b$-tagging, plays an important role for various physics measurements and searches carried out by the ATLAS experiment at the CERN Large Hadron Collider (LHC). The most…

High Energy Physics - Experiment · Physics 2023-06-08 Arnaud Duperrin

Many searches for physics beyond the Standard Model at the Large Hadron Collider (LHC) rely on top tagging algorithms, which discriminate between boosted hadronic top quarks and the much more common jets initiated by light quarks and…

High Energy Physics - Phenomenology · Physics 2015-01-27 Leandro G. Almeida , Mihailo Backovic , Mathieu Cliche , Seung J. Lee , Maxim Perelstein

The ability to identify jets containing B hadrons is important for the high-pT physics program of a general-purpose experiment such as ATLAS. b-tagging is in particular useful for selecting very pure top quark samples, for studying standard…

High Energy Physics - Experiment · Physics 2008-11-04 Marc Lehmacher

We present the development and validation of a new multivariate $b$ jet identification algorithm ("$b$ tagger") used at the CDF experiment at the Fermilab Tevatron. At collider experiments, $b$ taggers allow one to distinguish particle jets…

High Energy Physics - Experiment · Physics 2011-12-07 J. Freeman , W. Ketchum , J. D. Lewis , S. Poprocki , A. Pronko , V. Rusu , P. Wittich

The separation of $b$-quark initiated jets from those coming from lighter quark flavors ($b$-tagging) is a fundamental tool for the ATLAS physics program at the CERN Large Hadron Collider. The most powerful $b$-tagging algorithms combine…

High Energy Physics - Experiment · Physics 2017-11-27 Michela Paganini

The identification of jets containing $b$ hadrons is important for the physics programme of the ATLAS experiment at the Large Hadron Collider. Several algorithms to identify jets containing $b$ hadrons are described, ranging from those…

High Energy Physics - Experiment · Physics 2016-04-06 ATLAS Collaboration

The ATLAS experiment relies on real-time hadronic jet reconstruction and $b$-tagging to record fully hadronic events containing $b$-jets. These algorithms require track reconstruction, which is computationally expensive and could overwhelm…

High Energy Physics - Experiment · Physics 2024-11-14 ATLAS Collaboration

The performance of taggers for hadronically decaying top quarks and $W$ bosons in $pp$ collisions at $\sqrt{s}$ = 13 TeV recorded by the ATLAS experiment at the Large Hadron Collider is presented. A set of techniques based on jet shape…

High Energy Physics - Experiment · Physics 2019-06-05 ATLAS Collaboration

The identification of jets originating from beauty quarks in heavy-ion collisions is important to study the properties of the hot and dense matter produced in such collisions. A variety of algorithms for b-jet tagging was elaborated at the…

Instrumentation and Detectors · Physics 2019-08-13 Gyulnara Eyyubova , Lukáš Kramárik

The identification of top quark decays where the top quark has a large momentum transverse to the beam axis, known as $top$ $tagging$, is a crucial component in many measurements of Standard Model processes and searches for beyond the…

High Energy Physics - Experiment · Physics 2024-12-16 ATLAS Collaboration

The identification of hadronic final states plays a crucial role in the physics programme of the ATLAS Experiment at the CERN LHC. Sophisticated artificial intelligence (AI) algorithms are employed to classify jets according to their…

Data Analysis, Statistics and Probability · Physics 2026-03-16 Leonardo Toffolin

The identification of b jets is a crucial issue to study and characterize various channels like top quark events and many new physics scenarios. Different b-tagging techniques are defined in CMS which benefit from the long life time, high…

High Energy Physics - Experiment · Physics 2012-01-26 Cristina Ferro

At the Large Hadron Collider, the identification of jets originating from b quarks is important for searches for new physics and for measurements of standard model processes. A variety of algorithms has been developed by CMS to select…

High Energy Physics - Experiment · Physics 2013-05-30 CMS Collaboration

Identifying jets originating from bottom quarks is vital in collider experiments for new physics searches. This paper proposes a novel approach based on Retentive Networks (RetNet) for b-jet tagging using low-level features of jet…

High Energy Physics - Experiment · Physics 2024-12-12 Ayse Asu Guvenli , Bora Isildak

Several improvements to the ATLAS triggers used to identify jets containing $b$-hadrons ($b$-jets) were implemented for data-taking during Run 2 of the Large Hadron Collider from 2016 to 2018. These changes include reconfiguring the $b$-jet…

High Energy Physics - Experiment · Physics 2024-11-22 ATLAS Collaboration

A new algorithm for the identification of boosted, hadronically decaying, heavy particles at the LHC is presented. The algorithm is based on the known procedure of jet clustering with variable distance parameter $R$ and adapts the jet size…

High Energy Physics - Phenomenology · Physics 2016-11-10 Tobias Lapsien , Roman Kogler , Johannes Haller

The identification of jets originating from b quarks is crucial both for the searches for new physics and for the measurement of standard model processes. The Compact Muon Solenoid (CMS) collaboration at the Large Hadron Collider (LHC) has…

High Energy Physics - Experiment · Physics 2014-09-02 Nitish Dhingra

Beauty-tagged jets (b-jets)-collimated sprays of particles originating from the fragmentation of beauty quarks produced in the initial hard scatterings-provide a unique probe of parton dynamics in the quark-gluon plasma (QGP) created in…

Data Analysis, Statistics and Probability · Physics 2025-07-01 Changhwan Choi , Sanghoon Lim

The identification of boosted heavy particles such as top quarks or vector bosons is one of the key problems arising in experimental studies at the Large Hadron Collider. In this article, we introduce LundNet, a novel jet tagging method…

High Energy Physics - Phenomenology · Physics 2021-02-12 Frédéric A. Dreyer , Huilin Qu
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