Constraints on Anomalous Quartic Gauge Couplings via Electroweak Production of $γγjj$ at Future Proton-Proton Colliders
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| Format: | Preprint |
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2025
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| _version_ | 1866915392893485056 |
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| author | Senol, A. Tekin, M. Ozaltay, B. S. Denizli, H. |
| author_facet | Senol, A. Tekin, M. Ozaltay, B. S. Denizli, H. |
| contents | The investigation of quartic gauge couplings provides a crucial test of the Standard Model and serves as a potential window into new physics at higher energy scales. Within the framework of Effective Field Theory, deviations from the SM can be parameterized through dimension-8 operators. In this study, we analyze the process $pp \rightarrow γγjj$ at the High-Luminosity Large Hadron Collider (HL-LHC) and the Future Circular Collider in hadron mode (FCC-hh) to probe the sensitivity to anomalous quartic gauge couplings (aQGCs), particularly $f_{T8}/Λ^4$ and $f_{T9}/Λ^4$. Monte Carlo simulations of signal and relevent backgrouds are performed using MadGraph for event generation, Pythia for parton showering and hadronization, and Delphes for detector simulation. A multivariate analysis based on Boosted Decision Trees is employed to optimize the signal-to-background discrimination, incorporating a comprehensive set of kinematic and reconstructed variables of the final state particles. Additionally, we evaluate unitarity-violating effects associated with dimension-8 operators by imposing energy cutoffs on the di-photon invariant mass. The expected exclusion and discovery significances are computed, accounting for systematic uncertainties to ensure a realistic assessment of collider reach. Our findings indicate that the FCC-hh offers significantly improved sensitivity compared to the HL-LHC and current experimental results by ATLAS, reinforcing its potential for probing aQGCs. Notably, even under a 10\% systematic uncertainty, our projected limits for FCC-hh at 95\% confidence level surpass the current best constraints reported by the ATLAS collaboration, highlighting the enhanced discovery prospects at future high-energy colliders. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_20248 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Constraints on Anomalous Quartic Gauge Couplings via Electroweak Production of $γγjj$ at Future Proton-Proton Colliders Senol, A. Tekin, M. Ozaltay, B. S. Denizli, H. High Energy Physics - Phenomenology High Energy Physics - Experiment The investigation of quartic gauge couplings provides a crucial test of the Standard Model and serves as a potential window into new physics at higher energy scales. Within the framework of Effective Field Theory, deviations from the SM can be parameterized through dimension-8 operators. In this study, we analyze the process $pp \rightarrow γγjj$ at the High-Luminosity Large Hadron Collider (HL-LHC) and the Future Circular Collider in hadron mode (FCC-hh) to probe the sensitivity to anomalous quartic gauge couplings (aQGCs), particularly $f_{T8}/Λ^4$ and $f_{T9}/Λ^4$. Monte Carlo simulations of signal and relevent backgrouds are performed using MadGraph for event generation, Pythia for parton showering and hadronization, and Delphes for detector simulation. A multivariate analysis based on Boosted Decision Trees is employed to optimize the signal-to-background discrimination, incorporating a comprehensive set of kinematic and reconstructed variables of the final state particles. Additionally, we evaluate unitarity-violating effects associated with dimension-8 operators by imposing energy cutoffs on the di-photon invariant mass. The expected exclusion and discovery significances are computed, accounting for systematic uncertainties to ensure a realistic assessment of collider reach. Our findings indicate that the FCC-hh offers significantly improved sensitivity compared to the HL-LHC and current experimental results by ATLAS, reinforcing its potential for probing aQGCs. Notably, even under a 10\% systematic uncertainty, our projected limits for FCC-hh at 95\% confidence level surpass the current best constraints reported by the ATLAS collaboration, highlighting the enhanced discovery prospects at future high-energy colliders. |
| title | Constraints on Anomalous Quartic Gauge Couplings via Electroweak Production of $γγjj$ at Future Proton-Proton Colliders |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2502.20248 |