3 papers
hep-ph2026
Beyond Form Factors: Precise Angular Tests in Hadronic Decays
E. Estrada, E. Passemar, S. Paz +2
Semileptonic decays mainly proceed via interactions between charged lepton and quark currents. The hadronization of the quark current is intrinsically nonperturbative and gene…
hep-ph2026
Coupled-channel Omnès matrix for the -wave isoscalar system and its application to
Igor Danilkin, Oleksandra Deineka, Emilie Passemar +1
In this work, we construct the -wave isoscalar coupled-channel Omnès matrix, formulated to satisfy unitarity, analyticity, and the appropriate asymptotic behavior.…
hep-ph2025
Flavor-changing Lorentz and CPT violation in muonic atoms
Alan Kostelecky, W. P. McNulty, E. Passemar +1
Flavor-changing signatures of Lorentz and CPT violation involving muon-electron conversions in muonic atoms are studied using effective field theory. Constraints on coefficients fo…