Singularity variables for missing energy event kinematics

Abstract We discuss singularity variables which are properly suited for analyzing the kinematics of events with missing transverse energy at the LHC. We consider six of the simplest event topologies encountered in studies of leptonic W -bosons and top quarks, as well as in SUSY-like searches for new...

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Main Authors: Konstantin T. Matchev, Prasanth Shyamsundar
Format: Article
Language:English
Published: SpringerOpen 2020-04-01
Series:Journal of High Energy Physics
Subjects:
Online Access:http://link.springer.com/article/10.1007/JHEP04(2020)027
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author Konstantin T. Matchev
Prasanth Shyamsundar
author_facet Konstantin T. Matchev
Prasanth Shyamsundar
author_sort Konstantin T. Matchev
collection DOAJ
description Abstract We discuss singularity variables which are properly suited for analyzing the kinematics of events with missing transverse energy at the LHC. We consider six of the simplest event topologies encountered in studies of leptonic W -bosons and top quarks, as well as in SUSY-like searches for new physics with dark matter particles. In each case, we illustrate the general prescription for finding the relevant singularity variable, which in turn helps delineate the visible parameter subspace on which the singularities are located. Our results can be used in two different ways — first, as a guide for targeting the signal-rich regions of parameter space during the stage of discovery, and second, as a sensitive focus point method for measuring the particle mass spectrum after the initial discovery.
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spelling doaj.art-685056f91c644a88ba817d30b1afe12e2022-12-21T23:58:57ZengSpringerOpenJournal of High Energy Physics1029-84792020-04-012020414610.1007/JHEP04(2020)027Singularity variables for missing energy event kinematicsKonstantin T. Matchev0Prasanth Shyamsundar1Institute for Fundamental Theory, Physics Department, University of FloridaInstitute for Fundamental Theory, Physics Department, University of FloridaAbstract We discuss singularity variables which are properly suited for analyzing the kinematics of events with missing transverse energy at the LHC. We consider six of the simplest event topologies encountered in studies of leptonic W -bosons and top quarks, as well as in SUSY-like searches for new physics with dark matter particles. In each case, we illustrate the general prescription for finding the relevant singularity variable, which in turn helps delineate the visible parameter subspace on which the singularities are located. Our results can be used in two different ways — first, as a guide for targeting the signal-rich regions of parameter space during the stage of discovery, and second, as a sensitive focus point method for measuring the particle mass spectrum after the initial discovery.http://link.springer.com/article/10.1007/JHEP04(2020)027Supersymmetry Phenomenology
spellingShingle Konstantin T. Matchev
Prasanth Shyamsundar
Singularity variables for missing energy event kinematics
Journal of High Energy Physics
Supersymmetry Phenomenology
title Singularity variables for missing energy event kinematics
title_full Singularity variables for missing energy event kinematics
title_fullStr Singularity variables for missing energy event kinematics
title_full_unstemmed Singularity variables for missing energy event kinematics
title_short Singularity variables for missing energy event kinematics
title_sort singularity variables for missing energy event kinematics
topic Supersymmetry Phenomenology
url http://link.springer.com/article/10.1007/JHEP04(2020)027
work_keys_str_mv AT konstantintmatchev singularityvariablesformissingenergyeventkinematics
AT prasanthshyamsundar singularityvariablesformissingenergyeventkinematics