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Looking Inside Jets

An Introduction to Jet Substructure and Boosted-object Phenomenology

  • Simone Marzani
  • Gregory Soyez
  • Michael Spannowsky
Book

Part of the Lecture Notes in Physics book series (LNP, volume 958)

Table of contents

  1. Front Matter
    Pages i-xi
  2. Simone Marzani, Gregory Soyez, Michael Spannowsky
    Pages 1-6
  3. Simone Marzani, Gregory Soyez, Michael Spannowsky
    Pages 7-22
  4. Simone Marzani, Gregory Soyez, Michael Spannowsky
    Pages 23-34
  5. Simone Marzani, Gregory Soyez, Michael Spannowsky
    Pages 35-59
  6. Simone Marzani, Gregory Soyez, Michael Spannowsky
    Pages 61-85
  7. Simone Marzani, Gregory Soyez, Michael Spannowsky
    Pages 87-112
  8. Simone Marzani, Gregory Soyez, Michael Spannowsky
    Pages 113-128
  9. Simone Marzani, Gregory Soyez, Michael Spannowsky
    Pages 129-154
  10. Simone Marzani, Gregory Soyez, Michael Spannowsky
    Pages 155-163
  11. Simone Marzani, Gregory Soyez, Michael Spannowsky
    Pages 165-181
  12. Simone Marzani, Gregory Soyez, Michael Spannowsky
    Pages 183-185
  13. Back Matter
    Pages 187-205

About this book

Introduction

This concise primer reviews the latest developments in the field of jets. Jets are collinear sprays of hadrons produced in very high-energy collisions, e.g. at the LHC or at a future hadron collider. They are essential to and ubiquitous in experimental analyses, making their study crucial.

 At present LHC energies and beyond, massive particles around the electroweak scale are frequently produced with transverse momenta that are much larger than their mass, i.e., boosted. The decay products of such boosted massive objects tend to occupy only a relatively small and confined area of the detector and are observed as a single jet. Jets hence arise from many different sources and it is important to be able to distinguish the rare events with boosted resonances from the large backgrounds originating from Quantum Chromodynamics (QCD). This requires familiarity with the internal properties of jets, such as their different radiation patterns, a field broadly known as jet substructure.

 This set of notes begins by providing a phenomenological motivation, explaining why the study of jets and their substructure is of particular importance for the current and future program of the LHC, followed by a brief but insightful introduction to QCD and to hadron-collider phenomenology. The next section introduces jets as complex objects constructed from a sequential recombination algorithm. In this context some experimental aspects are also reviewed. Since jet substructure calculations are multi-scale problems that call for all-order treatments (resummations), the bases of such calculations are discussed for simple jet quantities.

 With these QCD and jet physics ingredients in hand, readers can then dig into jet substructure itself. Accordingly, these notes first highlight the main concepts behind substructure techniques and introduce a list of the main jet substructure tools that have been used over the past decade. Analytic calculations are then provided for several families of tools, the goal being to identify their key characteristics. In closing, the book provides an overview of LHC searches and measurements where jet substructure techniques are used, reviews the main take-home messages, and outlines future perspectives.


Keywords

LHC analyses Jet observables Hadron collider phenomenology Boosted resonances and QCD background Jet grooming techniques

Authors and affiliations

  • Simone Marzani
    • 1
  • Gregory Soyez
    • 2
  • Michael Spannowsky
    • 3
  1. 1.Dipartimento di FisicaUniversità di GenovaGenovaItaly
  2. 2.Institut de Physique TheoriqueCNRS UMR 3681, CEA SaclayGif-sur-Yvette cedexFrance
  3. 3.Department of Physics, Institute for Particle Physics PhenomenologyDurham UniversityDurhamUK

Bibliographic information

  • DOI https://doi.org/10.1007/978-3-030-15709-8
  • Copyright Information Springer Nature Switzerland AG 2019
  • Publisher Name Springer, Cham
  • eBook Packages Physics and Astronomy
  • Print ISBN 978-3-030-15708-1
  • Online ISBN 978-3-030-15709-8
  • Series Print ISSN 0075-8450
  • Series Online ISSN 1616-6361
  • Buy this book on publisher's site
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