Analytic boosted boson discrimination

Larkoski, Andrew J.; Moult, Ian; Neill, Duff

doi:10.1007/JHEP05(2016)117

Title: Analytic boosted boson discrimination

Journal Article · Fri May 20 00:00:00 EDT 2016 · Journal of High Energy Physics (Online)

DOI:https://doi.org/10.1007/JHEP05(2016)117· OSTI ID:1326946

Larkoski, Andrew J. ^[1]; Moult, Ian ^[1]; Neill, Duff ^[1]

Massachusetts Institute of Technology, Cambridge, MA (United States)

Observables which discriminate boosted topologies from massive QCD jets are of great importance for the success of the jet substructure program at the Large Hadron Collider. Such observables, while both widely and successfully used, have been studied almost exclusively with Monte Carlo simulations. In this paper we present the first all-orders factorization theorem for a two-prong discriminant based on a jet shape variable, D₂, valid for both signal and background jets. Our factorization theorem simultaneously describes the production of both collinear and soft subjets, and we introduce a novel zero-bin procedure to correctly describe the transition region between these limits. By proving an all orders factorization theorem, we enable a systematically improvable description, and allow for precision comparisons between data, Monte Carlo, and first principles QCD calculations for jet substructure observables. Using our factorization theorem, we present numerical results for the discrimination of a boosted Z boson from massive QCD background jets. We compare our results with Monte Carlo predictions which allows for a detailed understanding of the extent to which these generators accurately describe the formation of two-prong QCD jets, and informs their usage in substructure analyses. In conclusion, our calculation also provides considerable insight into the discrimination power and calculability of jet substructure observables in general.

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Research Organization:: Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: SC0012567; SC0011090

OSTI ID:: 1326946

Journal Information:: Journal of High Energy Physics (Online), Vol. 2016, Issue 5; ISSN 1029-8479

Publisher:: Springer BerlinCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 71 works

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Multijet Cross Sections in Deep Inelastic Scattering at Next-to-Leading Order Nagy, Zoltán; Trócsányi, Zoltán The American Physical Society https://doi.org/10.17877/de290r-3728	text	January 2001
Measurement of observables sensitive to coherence effects in hadronic Z decays with the OPAL detector at LEP Fischer, Nadine; Gieseke, Stefan; Kluth, Stefan Proceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2015) https://doi.org/10.22323/1.234.0469	conference	March 2016
Event generation with SHERPA 1.1 Gleisberg, T.; Höche, S.; Krauss, F. Institute of Physics Publishing https://doi.org/10.5167/uzh-32078	text	January 2009
Measurement of the cross-section of high transverse momentum vector bosons reconstructed as single jets and studies of jet substructure in pp collisions at $\sqrt{s}$ = 7 TeV with the ATLAS detector Collaboration, Atlas; Canelli, M. F.; Al, Et IOP Publishing https://doi.org/10.5167/uzh-108114	text	January 2014
Hadronization effects in event-shape moments Gehrmann, T.; Jaquier, M.; Luisoni, G. Springer https://doi.org/10.5167/uzh-34344	text	January 2010
The two-loop soft current in dimensional regularization Duhr, Claude; Gehrmann, Thomas Elsevier https://doi.org/10.5167/uzh-89906	text	January 2013
HypExp 2, expanding hypergeometric functions about half-integer parameters Huber, Tobias; Maître, Daniel Computer Physics Communications, Vol. 183, Issue 4 https://doi.org/10.1016/j.cpc.2011.11.016	journal	April 2012
Revisiting radiation patterns in e+e- collisions Fischer, N.; Gieseke, S.; Plätzer, S. Karlsruhe https://doi.org/10.5445/ir/1000042127	text	January 2014
Measurement of the cross-section of high transverse momentum vector bosons reconstructed as single jets and studies of jet substructure in pp collisions at √s = 7 TeV with the ATLAS detector Agustoni, Marco; Beck, Hans Peter; Cervelli, Alberto Institute of Physics Publishing IOP https://doi.org/10.7892/boris.68679	text	January 2014
The anti-k_t jet clustering algorithm Cacciari, Matteo; Salam, Gavin P.; Soyez, Gregory arXiv https://doi.org/10.48550/arxiv.0802.1189	text	January 2008
Non-global logarithms and jet algorithms in high-pT jet shapes Banfi, Andrea; Dasgupta, Mrinal; Khelifa-Kerfa, Kamel arXiv https://doi.org/10.48550/arxiv.1004.3483	text	January 2010
Resummation of heavy jet mass and comparison to LEP data Chien, Yang-Ting; Schwartz, Matthew D. arXiv https://doi.org/10.48550/arxiv.1005.1644	text	January 2010
Maximizing Boosted Top Identification by Minimizing N-subjettiness Thaler, Jesse; Van Tilburg, Ken arXiv https://doi.org/10.48550/arxiv.1108.2701	text	January 2011
Double Non-Global Logarithms In-N-Out of Jets Hornig, Andrew; Lee, Christopher; Walsh, Jonathan R. arXiv https://doi.org/10.48550/arxiv.1110.0004	text	January 2011
Jet Substructure at the Tevatron and LHC: New results, new tools, new benchmarks Altheimer, A.; Arora, S.; Asquith, L. arXiv https://doi.org/10.48550/arxiv.1201.0008	text	January 2012
Angular Scaling in Jets Jankowiak, Martin; Larkoski, Andrew J. arXiv https://doi.org/10.48550/arxiv.1201.2688	text	January 2012
Precision Jet Substructure from Boosted Event Shapes Feige, Ilya; Schwartz, Matthew D.; Stewart, Iain W. arXiv https://doi.org/10.48550/arxiv.1204.3898	text	January 2012
Pileup subtraction for jet shapes Soyez, Gregory; Salam, Gavin P.; Kim, Jihun arXiv https://doi.org/10.48550/arxiv.1211.2811	text	January 2012
Antenna Showers with One-Loop Matrix Elements Hartgring, L.; Laenen, E.; Skands, P. arXiv https://doi.org/10.48550/arxiv.1303.4974	text	January 2013
Resummation of non-global logarithms at finite $N_c$ Hatta, Yoshitaka; Ueda, Takahiro arXiv https://doi.org/10.48550/arxiv.1304.6930	text	January 2013
Energy Correlation Functions for Jet Substructure Larkoski, Andrew J.; Salam, Gavin P.; Thaler, Jesse arXiv https://doi.org/10.48550/arxiv.1305.0007	text	January 2013
Jet substructure with analytical methods Dasgupta, Mrinal; Fregoso, Alessandro; Marzani, Simone arXiv https://doi.org/10.48550/arxiv.1307.0013	text	January 2013
Unsafe but Calculable: Ratios of Angularities in Perturbative QCD Larkoski, Andrew J.; Thaler, Jesse arXiv https://doi.org/10.48550/arxiv.1307.1699	text	January 2013
Associated jet and subjet rates in light-quark and gluon jet discrimination Bhattacherjee, Biplob; Mukhopadhyay, Satyanarayan; Nojiri, Mihoko M. arXiv https://doi.org/10.48550/arxiv.1501.04794	text	January 2015
Tracking down hyper-boosted top quarks Larkoski, Andrew J.; Maltoni, Fabio; Selvaggi, Michele arXiv https://doi.org/10.48550/arxiv.1503.03347	preprint	January 2015
$W$-boson production in association with a jet at next-to-next-to-leading order in perturbative QCD Boughezal, Radja; Focke, Christfried; Liu, Xiaohui arXiv https://doi.org/10.48550/arxiv.1504.02131	text	January 2015
Higgs boson production in association with a jet at next-to-next-to-leading order Boughezal, Radja; Caola, Fabrizio; Melnikov, Kirill arXiv https://doi.org/10.48550/arxiv.1504.07922	text	January 2015
Measurement and QCD Analysis of Jet Cross Sections in Deep-Inelastic Positron-Proton Collisions at sqrt(s) of 300 GeV Collaboration, H1; Adloff, C. arXiv https://doi.org/10.48550/arxiv.hep-ex/0010054	text	January 2000
Hadron masses and power corrections to event shapes Salam, G. P.; Wicke, D. arXiv https://doi.org/10.48550/arxiv.hep-ph/0102343	text	January 2001
Non-global logarithms in inter-jet energy flow with kt clustering requirement Appleby, R. B.; Seymour, M. H. arXiv https://doi.org/10.48550/arxiv.hep-ph/0211426	text	January 2002
Non-global jet evolution at finite N_c Weigert, Heribert arXiv https://doi.org/10.48550/arxiv.hep-ph/0312050	text	January 2003
Factorization and Shape-Function Effects in Inclusive B-Meson Decays Bosch, S. W.; Lange, B. O.; Neubert, M. arXiv https://doi.org/10.48550/arxiv.hep-ph/0402094	text	January 2004
HypExp, a Mathematica package for expanding hypergeometric functions around integer-valued parameters Huber, T.; Maitre, D. arXiv https://doi.org/10.48550/arxiv.hep-ph/0507094	text	January 2005
Universal Nonperturbative Effects in Event Shapes from Soft-Collinear Effective Theory Lee, Christopher arXiv https://doi.org/10.48550/arxiv.hep-ph/0703030	text	January 2007
Jets and Quantum Field Theory Sveshnikov, N. A.; Tkachov, F. V. arXiv https://doi.org/10.48550/arxiv.hep-ph/9512370	text	January 1995
Better Jet Clustering Algorithms Dokshitzer, Yu. L.; Leder, G. D.; Moretti, S. arXiv https://doi.org/10.48550/arxiv.hep-ph/9707323	text	January 1997

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