4.7 Article

Constraining 3-3-1 models at the LHC and future hadron colliders

Journal

PHYSICAL REVIEW D
Volume 106, Issue 5, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.106.055027

Keywords

-

Funding

  1. CAPES [88882.375870/2019-01, 88887.485509/2020-00]
  2. ICTP-SAIFR FAPESP [2016/01343-7]
  3. CNPq [303817/2018-6, 421952/2018-0, ICN2019_044]
  4. Serrapilheira Foundation [307317/2021-8]
  5. Simons Foundation [Serra-1912-31613]
  6. ANID PIA/APOYO (Chile) [884966]
  7. ANID FONDECYT (Chile) [AFB180002]
  8. ANID-Millennium Program (Chile) [1190845]
  9. FAPESP [2021/01089-1]

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This study derives lower mass bounds on the Z' gauge boson based on dilepton data from the Large Hadron Collider, and predicts the sensitivity of future colliders. The researchers consider the presence of exotic and invisible decays of the Z' gauge boson to find a more conservative and robust limit. They also investigate the impact of these new decay channels on different benchmark models.
In this work, we derive lower mass bounds on the Z' gauge boson based on the dilepton data from the Large Hadron Collider (LHC) with 13 TeV of center-of-mass energy, and forecast the sensitivity of the high-luminosity LHC with L = 3000 fb-1, the high-energy LHC with pffisffi = 27 TeV, and also at the Future Circular Collider with ffis ffi p = 100 TeV. We take into account the presence of exotic and invisible decays of the Z' gauge boson to find a more conservative and robust limit, different from previous studies. We investigate the impact of these new decay channels for several benchmark models in the scope of two different 3-3-1 models. We found that in the most constraining cases, LHC with 139 fb-1 can impose mZ' > 4 TeV. Moreover, we forecast high-luminosity LHC, high-energy LHC, and Future Circular Collider reach, and derive the projected bounds mZ' > 5.8 TeV, mZ' > 9.9 TeV, and mZ' > 27 TeV, respectively. Lastly, we put our findings into perspective with dark matter searches to show the region of parameter space where a dark matter candidate with the right relic density is possible.

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