Journal article

Recursive soft drop

Abstract:: We introduce a new jet substructure technique called Recursive Soft Drop, which generalizes the Soft Drop algorithm to have multiple grooming layers. Like the original Soft Drop method, this new recursive variant traverses a jet clustering tree to remove soft wide-angle contamination. By enforcing the Soft Drop condition N times, Recursive Soft Drop improves the jet mass resolution for boosted hadronic objects like W bosons, top quarks, and Higgs bosons. We further show that this improvement in mass resolution persists when including the effects of pileup, up to large pileup multiplicities. In the limit that N goes to infinity, the resulting groomed jets formally have zero catchment area. As an alternative approach, we present a bottom-up version of Recursive Soft Drop which, in its local form, is similar to Recursive Soft Drop and which, in its global form, can be used to perform event-wide grooming.

Publication status:: Published

Peer review status:: Peer reviewed

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APA Style

Dreyer, F., Necib, L., Soyez, G., & Thaler, J. (2018). Recursive soft drop. Journal of High Energy Physics, 2018(6).

MLA Style

Dreyer, F., et al. “Recursive Soft Drop.” Journal of High Energy Physics, vol. 2018, no. 6, Springer, 2018.

Chicago Style

Dreyer, F, L Necib, G Soyez, and J Thaler. 2018. “Recursive Soft Drop.” Journal of High Energy Physics 2018 (6).
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Files:: Recursive soft drop.pdf

(Preview, Version of record, pdf, 2.2MB, Terms of use)

Publisher copy:: 10.1007/jhep06(2018)093

Authors

+ Dreyer, F More by this author

Institution:: University of Oxford
Division:: MPLS Division
Department:: Physics
Sub department:: Theoretical Physics
Department:: Unknown
Role:: Author
ORCID:: 0000-0002-0445-7863

+ Necib, L More by this author

Role:: Author
ORCID:: 0000-0003-2806-1414

+ Soyez, G More by this author

Role:: Author

+ Thaler, J More by this author

Role:: Author
ORCID:: 0000-0002-2406-8160

Publisher:: Springer
Journal:: Journal of High Energy Physics More from this journal
Volume:: 2018
Issue:: 6
Publication date:: 2018-06-20
Acceptance date:: 2018-06-13
DOI:: 10.1007/jhep06(2018)093
EISSN:: 1029-8479
ISSN:: 1126-6708

Language:: English
Keywords:: jets

QCD phenomenology
Pubs id:: pubs:936105
UUID:: uuid:bbd6e242-eed7-4a3f-8af8-5f6db552f757
Local pid:: pubs:936105
Source identifiers:: 936105
Deposit date:: 2019-01-04

Terms of use

Copyright holder:: Dreyer et al
Copyright date:: 2018
Notes:: © The Author(s) 2018. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.

Licence:: CC Attribution (CC BY)

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