Searching for new heavy neutral gauge bosons using vector boson fusion processes at the LHC
Abstract
Here, new massive resonances are predicted in many extensions to the Standard Model (SM) of particle physics and constitutes one of the most promising searches for new physics at the LHC. We present a feasibility study to search for new heavy neutral gauge bosons using vector boson fusion (VBF) processes, which become especially important as the LHC probes higher collision energies. In particular, we consider the possibility that the discovery of a Z' boson may have eluded searches at the LHC. The coupling of the Z' boson to the SM quarks can be small, and thus the Z' would not be discoverable by the searches conducted thus far. In the context of a simplified phenomenological approach, we consider the Z'→ττ and Z'→μμ decay modes to show that the requirement of a dilepton pair combined with two high pT forward jets with large separation in pseudorapidity and with large dijet mass is effective in reducing SM backgrounds. The expected exclusion bounds (at 95% confidence level) are m(Z') < 1.8 TeV and m(Z')<2.5 TeV in the ττjfjf and μμjfjf channels, respectively, assuming 1000 fb–1 of 13 TeV data from the LHC. The use of the VBF topology to search for massive neutralmore »
- Publication Date:
- Research Org.:
- Vanderbilt Univ., Nashville, TN (United States). Dept. of Physics and Astronomy
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1343167
- Alternate Identifier(s):
- OSTI ID: 1355926
- Grant/Contract Number:
- SC0011981
- Resource Type:
- Published Article
- Journal Name:
- Physics Letters B
- Additional Journal Information:
- Journal Name: Physics Letters B Journal Volume: 767 Journal Issue: C; Journal ID: ISSN 0370-2693
- Publisher:
- Elsevier
- Country of Publication:
- Netherlands
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Flórez, Andrés, Gurrola, Alfredo, Johns, Will, Oh, Young Do, Sheldon, Paul, Teague, Dylan, and Weiler, Thomas. Searching for new heavy neutral gauge bosons using vector boson fusion processes at the LHC. Netherlands: N. p., 2017.
Web. doi:10.1016/j.physletb.2017.01.062.
Flórez, Andrés, Gurrola, Alfredo, Johns, Will, Oh, Young Do, Sheldon, Paul, Teague, Dylan, & Weiler, Thomas. Searching for new heavy neutral gauge bosons using vector boson fusion processes at the LHC. Netherlands. https://doi.org/10.1016/j.physletb.2017.01.062
Flórez, Andrés, Gurrola, Alfredo, Johns, Will, Oh, Young Do, Sheldon, Paul, Teague, Dylan, and Weiler, Thomas. Sat .
"Searching for new heavy neutral gauge bosons using vector boson fusion processes at the LHC". Netherlands. https://doi.org/10.1016/j.physletb.2017.01.062.
@article{osti_1343167,
title = {Searching for new heavy neutral gauge bosons using vector boson fusion processes at the LHC},
author = {Flórez, Andrés and Gurrola, Alfredo and Johns, Will and Oh, Young Do and Sheldon, Paul and Teague, Dylan and Weiler, Thomas},
abstractNote = {Here, new massive resonances are predicted in many extensions to the Standard Model (SM) of particle physics and constitutes one of the most promising searches for new physics at the LHC. We present a feasibility study to search for new heavy neutral gauge bosons using vector boson fusion (VBF) processes, which become especially important as the LHC probes higher collision energies. In particular, we consider the possibility that the discovery of a Z' boson may have eluded searches at the LHC. The coupling of the Z' boson to the SM quarks can be small, and thus the Z' would not be discoverable by the searches conducted thus far. In the context of a simplified phenomenological approach, we consider the Z'→ττ and Z'→μμ decay modes to show that the requirement of a dilepton pair combined with two high pT forward jets with large separation in pseudorapidity and with large dijet mass is effective in reducing SM backgrounds. The expected exclusion bounds (at 95% confidence level) are m(Z') < 1.8 TeV and m(Z')<2.5 TeV in the ττjfjf and μμjfjf channels, respectively, assuming 1000 fb–1 of 13 TeV data from the LHC. The use of the VBF topology to search for massive neutral gauge bosons provides a discovery reach with expected significances greater than 5σ (3σ) for Z' masses up to 1.4 (1.6) TeV and 2.0 (2.2) TeV in the ττjfjf and μμjfjf channels.},
doi = {10.1016/j.physletb.2017.01.062},
journal = {Physics Letters B},
number = C,
volume = 767,
place = {Netherlands},
year = {Sat Apr 01 00:00:00 EDT 2017},
month = {Sat Apr 01 00:00:00 EDT 2017}
}
https://doi.org/10.1016/j.physletb.2017.01.062
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Works referencing / citing this record:
Search for supersymmetry with a compressed mass spectrum in the vector boson fusion topology with 1-lepton and 0-lepton final states in proton-proton collisions at s$$ \sqrt{s} $$ = 13 TeV
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