Exploiting jet binning to identify the initial state of high-mass resonances
Abstract
If a new high-mass resonance is discovered at the Large Hadron Collider, model-independent techniques to identify the production mechanism will be crucial to understand its nature and effective couplings to Standard Model particles. In this paper, we present a powerful and model-independent method to infer the initial state in the production of any high-mass color-singlet system by using a tight veto on accompanying hadronic jets to divide the data into two mutually exclusive event samples (jet bins). For a resonance of several hundred GeV, the jet binning cut needed to discriminate quark and gluon initial states is in the experimentally accessible range of several tens of GeV. It also yields comparable cross sections for both bins, making this method viable already with the small event samples available shortly after a discovery. Theoretically, the method is made feasible by utilizing an effective field theory setup to compute the jet cut dependence precisely and model independently and to systematically control all sources of theoretical uncertainties in the jet binning, as well as their correlations. Finally, we use a 750 GeV scalar resonance as an example to demonstrate the viability of our method.
- Authors:
-
- Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Nikhef, Theory Group (The Netherlands)
- Publication Date:
- Research Org.:
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- OSTI Identifier:
- 1505771
- Alternate Identifier(s):
- OSTI ID: 1327078
- Grant/Contract Number:
- SC0011090
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review. D.
- Additional Journal Information:
- Journal Volume: 94; Journal Issue: 5; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Ebert, Markus A., Liebler, Stefan, Moult, Ian, Stewart, Iain W., Tackmann, Frank J., Tackmann, Kerstin, and Zeune, Lisa. Exploiting jet binning to identify the initial state of high-mass resonances. United States: N. p., 2016.
Web. doi:10.1103/physrevd.94.051901.
Ebert, Markus A., Liebler, Stefan, Moult, Ian, Stewart, Iain W., Tackmann, Frank J., Tackmann, Kerstin, & Zeune, Lisa. Exploiting jet binning to identify the initial state of high-mass resonances. United States. https://doi.org/10.1103/physrevd.94.051901
Ebert, Markus A., Liebler, Stefan, Moult, Ian, Stewart, Iain W., Tackmann, Frank J., Tackmann, Kerstin, and Zeune, Lisa. Wed .
"Exploiting jet binning to identify the initial state of high-mass resonances". United States. https://doi.org/10.1103/physrevd.94.051901. https://www.osti.gov/servlets/purl/1505771.
@article{osti_1505771,
title = {Exploiting jet binning to identify the initial state of high-mass resonances},
author = {Ebert, Markus A. and Liebler, Stefan and Moult, Ian and Stewart, Iain W. and Tackmann, Frank J. and Tackmann, Kerstin and Zeune, Lisa},
abstractNote = {If a new high-mass resonance is discovered at the Large Hadron Collider, model-independent techniques to identify the production mechanism will be crucial to understand its nature and effective couplings to Standard Model particles. In this paper, we present a powerful and model-independent method to infer the initial state in the production of any high-mass color-singlet system by using a tight veto on accompanying hadronic jets to divide the data into two mutually exclusive event samples (jet bins). For a resonance of several hundred GeV, the jet binning cut needed to discriminate quark and gluon initial states is in the experimentally accessible range of several tens of GeV. It also yields comparable cross sections for both bins, making this method viable already with the small event samples available shortly after a discovery. Theoretically, the method is made feasible by utilizing an effective field theory setup to compute the jet cut dependence precisely and model independently and to systematically control all sources of theoretical uncertainties in the jet binning, as well as their correlations. Finally, we use a 750 GeV scalar resonance as an example to demonstrate the viability of our method.},
doi = {10.1103/physrevd.94.051901},
journal = {Physical Review. D.},
number = 5,
volume = 94,
place = {United States},
year = {Wed Sep 28 00:00:00 EDT 2016},
month = {Wed Sep 28 00:00:00 EDT 2016}
}
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Cited by: 15 works
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Figures / Tables:
FIG. 1: The ratio σ0(p$cut\atop{T}$)/σ≥1(p$cut\atop{T}$) for u (red), c (yellow), b quarks (blue) and gluons (green). The lines show the central values and the bands the theoretical uncertainties.
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Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.