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Area of Science:

  • Particle Physics
  • Quantum Chromodynamics
  • Hadron Spectroscopy

Background:

  • The Standard Model of particle physics describes fundamental particles and forces.
  • Tetraquarks, exotic hadrons composed of four quarks, present unique challenges in understanding strong interactions.
  • Experimental observations of heavy quarkonium states, like X and Z bosons, require theoretical explanations.

Purpose of the Study:

  • To investigate the properties of a specific di-bottomonium tetraquark state.
  • To present a novel theoretical framework for diquark-antidiquark interactions within tetraquarks.
  • To address open questions in the phenomenology of known tetraquark states (X, Z).

Main Methods:

  • Development of a new model for diquark-antidiquark interactions.
  • Calculation of the mass and decay width of the di-bottomonium tetraquark.
  • Comparison of theoretical predictions with experimental data and analyses (e.g., LHCb).

Main Results:

  • The study predicts the mass and decay width of the di-bottomonium tetraquark.
  • The proposed model successfully resolves several outstanding issues in the phenomenology of X and Z states.
  • The di-bottomonium tetraquark is predicted to exist approximately 100 MeV below the relevant threshold.

Conclusions:

  • The new tetraquark model provides a consistent framework for understanding di-bottomonium states.
  • The findings offer testable predictions for ongoing and future experimental searches at the LHC.
  • This work contributes to a deeper comprehension of exotic hadrons and the strong nuclear force.