Detecting a boosted diboson resonance
Abstract
New light scalar particles in the mass range of hundreds of GeV, decaying into a pair of W/Z bosons can appear in several extensions of the SM. The focus of collider studies for such a scalar is often on its direct production, where the scalar is typically only mildly boosted. The observed W/Z are therefore well-separated, allowing analyses for the scalar resonance in a standard fashion as a low-mass diboson resonance. In this work we instead focus on the scenario where the direct production of the scalar is suppressed, and it is rather produced via the decay of a significantly heavier (a few TeV mass) new particle, in conjunction with SM particles. Such a process results in the scalar being highly boosted, rendering the W/Z’s from its decay merged. The final state in such a decay is a “fat” jet, which can be either four pronged (for fully hadronic W/Z decays), or may be like a W/Z jet, but with leptons buried inside (if one of the W/Z decays leptonically). In addition, this fat jet has a jet mass that can be quite different from that of the W/Z/Higgs/top quark-induced jet, and may be missed by existing searches. In thismore »
- Authors:
-
- Univ. of Maryland, College Park, MD (United States)
- Univ. of Maryland, College Park, MD (United States); Johns Hopkins Univ., Baltimore, MD (United States)
- Cornell Univ., Ithaca, NY (United States)
- European Organization for Nuclear Research (CERN), Geneva (Switzerland); Univ. of Arizona, Tucson, AZ (United States)
- Istituto Nazionale di Fisica Nucleare (INFN), Pisa (Italy)
- Publication Date:
- Research Org.:
- Univ. of Arizona, Tucson, AZ (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC); National Science Foundation (NSF); Korean Research Foundation (KRF)
- OSTI Identifier:
- 1611216
- Grant/Contract Number:
- SC0009913; FG02-13ER41976; PHY-1620074; PHY-1719877
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of High Energy Physics (Online)
- Additional Journal Information:
- Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2018; Journal Issue: 11; Journal ID: ISSN 1029-8479
- Publisher:
- Springer Berlin
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; physics; jets; phenomenological models
Citation Formats
Agashe, Kaustubh, Collins, Jack H., Du, Peizhi, Hong, Sungwoo, Kim, Doojin, and Mishra, Rashmish K. Detecting a boosted diboson resonance. United States: N. p., 2018.
Web. doi:10.1007/jhep11(2018)027.
Agashe, Kaustubh, Collins, Jack H., Du, Peizhi, Hong, Sungwoo, Kim, Doojin, & Mishra, Rashmish K. Detecting a boosted diboson resonance. United States. https://doi.org/10.1007/jhep11(2018)027
Agashe, Kaustubh, Collins, Jack H., Du, Peizhi, Hong, Sungwoo, Kim, Doojin, and Mishra, Rashmish K. Tue .
"Detecting a boosted diboson resonance". United States. https://doi.org/10.1007/jhep11(2018)027. https://www.osti.gov/servlets/purl/1611216.
@article{osti_1611216,
title = {Detecting a boosted diboson resonance},
author = {Agashe, Kaustubh and Collins, Jack H. and Du, Peizhi and Hong, Sungwoo and Kim, Doojin and Mishra, Rashmish K.},
abstractNote = {New light scalar particles in the mass range of hundreds of GeV, decaying into a pair of W/Z bosons can appear in several extensions of the SM. The focus of collider studies for such a scalar is often on its direct production, where the scalar is typically only mildly boosted. The observed W/Z are therefore well-separated, allowing analyses for the scalar resonance in a standard fashion as a low-mass diboson resonance. In this work we instead focus on the scenario where the direct production of the scalar is suppressed, and it is rather produced via the decay of a significantly heavier (a few TeV mass) new particle, in conjunction with SM particles. Such a process results in the scalar being highly boosted, rendering the W/Z’s from its decay merged. The final state in such a decay is a “fat” jet, which can be either four pronged (for fully hadronic W/Z decays), or may be like a W/Z jet, but with leptons buried inside (if one of the W/Z decays leptonically). In addition, this fat jet has a jet mass that can be quite different from that of the W/Z/Higgs/top quark-induced jet, and may be missed by existing searches. In this work, we develop dedicated algorithms for tagging such multi-layered “boosted dibosons” at the LHC. As a concrete application, we discuss an extension of the standard warped extra dimensional framework where such a light scalar can arise. We demonstrate that the use of these algorithms gives sensitivity in mass ranges that are otherwise poorly constrained.},
doi = {10.1007/jhep11(2018)027},
journal = {Journal of High Energy Physics (Online)},
number = 11,
volume = 2018,
place = {United States},
year = {Tue Nov 06 00:00:00 EST 2018},
month = {Tue Nov 06 00:00:00 EST 2018}
}
Web of Science
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Works referencing / citing this record:
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