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Exploring Anomalous Quartic Gauge Couplings at the LHC: Insights from ATLAS Experiments

This study focuses on the potential discovery of anomalous quartic gauge couplings (aQGC) at the Large Hadron Collider (LHC) through the ATLAS detector. Conducted by Mauricio Gonzalez-Aranda, the research leverages the unprecedented energy levels of up to 14 TeV to probe beyond the Standard Model of particle physics. With recent observations of vector boson scattering (VBS), this work aims to analyze signals from proton collisions, simulating events that could reveal new physics. Aiming for a 5σ significance in results, the exploration may provide insights into the fundamental forces at high energies.

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Exploring Anomalous Quartic Gauge Couplings at the LHC: Insights from ATLAS Experiments

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  1. Study of anomalous Quartic Gauge Coupling discovery potential for the same-sign channel at the LHC Mauricio Gonzalez-Aranda

  2. ATLAS • Designed to take advantage of the unprecedented energy available at the LHC (up to 14 TeV) • The Standard Model may break down at energies beyond the current energy frontier of about one teraelectronvolt (TeV) (set at the Tevatron) • Rather than focusing on a particular physical process, ATLAS is designed to measure the broadest possible range of signals. Mauricio Gonzalez-Aranda

  3. Experiment • Vector Boson Scattering was recently witnessed for the first time • W± W±+ j j  l±ν l±ν+ j j (best chance at witnessing VBS) • Current results from two protons colliding at 4 TeV each • Simulations of future runs will probe at 7 TeV per proton Mauricio Gonzalez-Aranda

  4. Primary Goals • SM might be a part of a more complete theory that doesn’t break down at high energies. • Anomalous Quartic Gauge Couplings (aQGC) • Gauge: W bosons • Quartic: Four vector boson vertex • Anomalous: may couple to new-physics terms at high energies • Probe the Lagrangian for new physics terms beyond the SM at High Energies (14 TeV) Mauricio Gonzalez-Aranda

  5. My Project MadGraph: Simulate Signal with its new Physics Parameters and Backgrounds Detector: Simulate the Signal Showering and mixing with Background Root: Analyze data and look for a 5σ significance Mauricio Gonzalez-Aranda

  6. Concerns? • None so far • Sources: • C. Gumpert. 2014. “Measurement of the Electroweak W ±W ±jj Production Cross Section with ATLAS.” ICHEP. • http://arxiv.org/pdf/1309.7452v1.pdf • P. Angeret al. 2014. ``Same Sign W±W± Production and Limits on Anomalous Quartic Gauge Couplings.” ATLAS Note. • http://en.wikipedia.org/wiki/ATLAS_experiment • http://www.atlas.ch/photos/atlas_photos/selected-photos/events/VP1-W-munu-2.png Mauricio Gonzalez-Aranda

  7. Hiking in Lucerne Mauricio Gonzalez-Aranda

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