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dc.contributor.authorMarzani, Simone
dc.contributor.authorSoyez, Gregory
dc.contributor.authorThaler, Jesse
dc.contributor.authorLarkoski, Andrew
dc.date.accessioned2015-04-01T18:14:35Z
dc.date.available2015-04-01T18:14:35Z
dc.date.issued2014-05
dc.date.submitted2014-02
dc.identifier.issn1029-8479
dc.identifier.issn1126-6708
dc.identifier.urihttp://hdl.handle.net/1721.1/96319
dc.description.abstractWe introduce a new jet substructure technique called “soft drop declustering”, which recursively removes soft wide-angle radiation from a jet. The soft drop algorithm depends on two parameters — a soft threshold z [subscript cut] and an angular exponent β — with the β = 0 limit corresponding roughly to the (modified) mass drop procedure. To gain an analytic understanding of soft drop and highlight the β dependence, we perform resummed calculations for three observables on soft-dropped jets: the energy correlation functions, the groomed jet radius, and the energy loss due to soft drop. The β = 0 limit of the energy loss is particularly interesting, since it is not only “Sudakov safe” but also largely insensitive to the value of the strong coupling constant. While our calculations are strictly accurate only to modified leading-logarithmic order, we also include a discussion of higher-order effects such as multiple emissions and (the absence of) non-global logarithms. We compare our analytic results to parton shower simulations and find good agreement, and we also estimate the impact of non-perturbative effects such as hadronization and the underlying event. Finally, we demonstrate how soft drop can be used for tagging boosted W bosons, and we speculate on the potential advantages of using soft drop for pileup mitigation.en_US
dc.language.isoen_US
dc.publisherSpringer-Verlagen_US
dc.relation.isversionofhttp://dx.doi.org/10.1007/JHEP05(2014)146en_US
dc.rightsCreative Commons Attributionen_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.sourceSpringer-Verlagen_US
dc.titleSoft dropen_US
dc.typeArticleen_US
dc.identifier.citationLarkoski, Andrew J., Simone Marzani, Gregory Soyez, and Jesse Thaler. “Soft Drop.” J. High Energ. Phys. 2014, no. 5 (May 2014).en_US
dc.contributor.departmentMassachusetts Institute of Technology. Center for Theoretical Physicsen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Physicsen_US
dc.contributor.departmentMassachusetts Institute of Technology. Laboratory for Nuclear Scienceen_US
dc.contributor.mitauthorLarkoski, Andrewen_US
dc.contributor.mitauthorThaler, Jesseen_US
dc.relation.journalJournal of High Energy Physicsen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsLarkoski, Andrew J.; Marzani, Simone; Soyez, Gregory; Thaler, Jesseen_US
dc.identifier.orcidhttps://orcid.org/0000-0002-3181-4301
dc.identifier.orcidhttps://orcid.org/0000-0002-2406-8160
mit.licensePUBLISHER_CCen_US
mit.metadata.statusComplete


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