The radiation valley and exotic resonances in $Wγ$ production at the LHC
Abstract
The tree-level partonic angular distribution of Standard Model $Wγ$ production possesses a feature known as the Radiation Amplitude Zero (RAZ) where destructive interference causes the cross section to vanish. At the proton level the exact cancellation disappears, however, one can find a dip in the central region of the angular distributions, here called the Radiation Valley (RV). In this paper, we show how the sensitivity for $W(ℓv)γ$ resonances can be significantly improved if one focuses on events in the RV region. Using this technique, we find that the LHC could probe a larger range of resonance masses, equivalent to increasing the luminosity by a factor of 2–3 over conventional searches. The exact increase depends on the spin of the $Wγ$ resonance and exactly how it couples to electroweak gauge bosons.
- Authors:
-
- Perimeter Inst. for Theoretical Physics, Waterloo, ON (Canada); Univ. of Toronto, ON (Canada); Univ. of Notre Dame, IN (United States)
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Univ. of Notre Dame, IN (United States)
- Publication Date:
- Research Org.:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF); Canada Research Chair; Perimeter Institute for Theoretical Physics (PI); Industry Canada; Ministry of Economics Development and Innovation
- OSTI Identifier:
- 1597065
- Report Number(s):
- arXiv:1912.08234; FERMILAB-PUB-19-630-T
Journal ID: ISSN 1029-8479; oai:inspirehep.net:1771553; TRN: US2102995
- Grant/Contract Number:
- AC02-07CH11359; PHY-1820860; SC0007859
- 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: 2020; Journal Issue: 3; Journal ID: ISSN 1029-8479
- Publisher:
- Springer Berlin
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Phenomenological Models; Supersymmetry Phenomenology
Citation Formats
Capdevilla, Rodolfo M., Harnik, Roni, and Martin, Adam. The radiation valley and exotic resonances in $Wγ$ production at the LHC. United States: N. p., 2020.
Web. doi:10.1007/JHEP03(2020)117.
Capdevilla, Rodolfo M., Harnik, Roni, & Martin, Adam. The radiation valley and exotic resonances in $Wγ$ production at the LHC. United States. https://doi.org/10.1007/JHEP03(2020)117
Capdevilla, Rodolfo M., Harnik, Roni, and Martin, Adam. Fri .
"The radiation valley and exotic resonances in $Wγ$ production at the LHC". United States. https://doi.org/10.1007/JHEP03(2020)117. https://www.osti.gov/servlets/purl/1597065.
@article{osti_1597065,
title = {The radiation valley and exotic resonances in $Wγ$ production at the LHC},
author = {Capdevilla, Rodolfo M. and Harnik, Roni and Martin, Adam},
abstractNote = {The tree-level partonic angular distribution of Standard Model $Wγ$ production possesses a feature known as the Radiation Amplitude Zero (RAZ) where destructive interference causes the cross section to vanish. At the proton level the exact cancellation disappears, however, one can find a dip in the central region of the angular distributions, here called the Radiation Valley (RV). In this paper, we show how the sensitivity for $W(ℓv)γ$ resonances can be significantly improved if one focuses on events in the RV region. Using this technique, we find that the LHC could probe a larger range of resonance masses, equivalent to increasing the luminosity by a factor of 2–3 over conventional searches. The exact increase depends on the spin of the $Wγ$ resonance and exactly how it couples to electroweak gauge bosons.},
doi = {10.1007/JHEP03(2020)117},
journal = {Journal of High Energy Physics (Online)},
number = 3,
volume = 2020,
place = {United States},
year = {Fri Mar 20 00:00:00 EDT 2020},
month = {Fri Mar 20 00:00:00 EDT 2020}
}
Web of Science
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