dc.contributor.author | Chan, Tucker R. | |
dc.contributor.author | Thaler, Jesse | |
dc.contributor.author | Bertolini, Daniele, Ph. D. Massachusetts Institute of Technology | |
dc.date.accessioned | 2014-07-24T16:31:19Z | |
dc.date.available | 2014-07-24T16:31:19Z | |
dc.date.issued | 2014-04 | |
dc.date.submitted | 2014-01 | |
dc.identifier.issn | 1029-8479 | |
dc.identifier.uri | http://hdl.handle.net/1721.1/88483 | |
dc.description.abstract | We introduce a new class of event shapes to characterize the jet-like structure of an event. Like traditional event shapes, our observables are infrared/collinear safe and involve a sum over all hadrons in an event, but like a jet clustering algorithm, they incorporate a jet radius parameter and a transverse momentum cut. Three of the ubiquitous jet-based observables - jet multiplicity, summed scalar transverse momentum, and missing transverse momentum - have event shape counterparts that are closely correlated with their jet-based cousins. Due to their “local” computational structure, these jet-like event shapes could potentially be used for trigger-level event selection at the LHC. Intriguingly, the jet multiplicity event shape typically takes on non-integer values, highlighting the inherent ambiguity in defining jets. By inverting jet multiplicity, we show how to characterize the transverse momentum of the n-th hardest jet without actually finding the constituents of that jet. Since many physics applications do require knowledge about the jet constituents, we also build a hybrid event shape that incorporates (local) jet clustering information. As a straightforward application of our general technique, we derive an event-shape version of jet trimming, allowing event-wide jet grooming without explicit jet identification. Finally, we briefly mention possible applications of our method for jet substructure studies. | en_US |
dc.description.sponsorship | Alfred P. Sloan Foundation (Sloan Research Fellowship) | en_US |
dc.description.sponsorship | United States. Dept. of Energy (DOE Early Career research program DE-FG02-11ER-41741) | en_US |
dc.description.sponsorship | Istituto nazionale di fisica nucleare (INFN) (Bruno Rossi Fellowship) | en_US |
dc.description.sponsorship | U.S. LHC Theory Initiative (Graduate Fellowship) | en_US |
dc.description.sponsorship | United States. Dept. of Energy (cooperative research agreement DE-FG02-05ER-41360) | en_US |
dc.language.iso | en_US | |
dc.publisher | Springer-Verlag Berlin Heidelberg | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1007/jhep04(2014)013 | en_US |
dc.rights | Creative Commons Attribution | en_US |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | en_US |
dc.source | Springer-Verlag | en_US |
dc.title | Jet observables without jet algorithms | en_US |
dc.type | Article | en_US |
dc.identifier.citation | Bertolini, Daniele, Tucker Chan, and Jesse Thaler. “Jet Observables Without Jet Algorithms.” J. High Energ. Phys. 2014, no. 4 (April 2014). | en_US |
dc.contributor.department | Massachusetts Institute of Technology. Center for Theoretical Physics | en_US |
dc.contributor.department | Massachusetts Institute of Technology. Laboratory for Nuclear Science | en_US |
dc.contributor.mitauthor | Bertolini, Daniele | en_US |
dc.contributor.mitauthor | Chan, Tucker R. | en_US |
dc.contributor.mitauthor | Thaler, Jesse | en_US |
dc.relation.journal | Journal of High Energy Physics | en_US |
dc.eprint.version | Final published version | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
dspace.orderedauthors | Bertolini, Daniele; Chan, Tucker; Thaler, Jesse | en_US |
dc.identifier.orcid | https://orcid.org/0000-0002-2406-8160 | |
dspace.mitauthor.error | true | |
mit.license | PUBLISHER_CC | en_US |
mit.metadata.status | Complete | |