Communication Dans Un Congrès Année : 2025

New Constraint for Isotropic Lorentz Violation from LHC Data

Résumé

We present new calculations for the kinematics of photon decay into fermion pairs in vacuum, considering an isotropic Lorentz invariance violation (LV) as described by the Standard-Model Extension (SME). These calculations are applied to the interpretation of prompt photon production in LHC data. The inclusive measurement of prompt photon production at the LHC Run 2, with photon transverse energies reaching 2.5 TeV, leads to a lower bound on the isotropic coefficient, $\tilde{\kappa}_{tr} > -1.06\times 10^{-13}$ at 95% confidence level. This improves the previous collider constraint by a factor of 55. Additionally, the derived kinematics of photon decay can be utilized to further constrain LV coefficients through the detection of fermion pair production, such as top-antitop events.

Dates et versions

hal-05070132 , version 1 (16-05-2025)

Identifiants

Citer

David Amram. New Constraint for Isotropic Lorentz Violation from LHC Data. 9th Symposium on Prospects in the Physics of Discrete Symmetries, Dec 2024, Ljubljana, Slovenia. pp.001, ⟨10.22323/1.481.0001⟩. ⟨hal-05070132⟩
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