Year: 2026
Type: article
Abstract: A bstract We investigate the potential of associated Higgs pp → Vh and diboson production pp → WV channels at the LHC (with V = W , Z ) to constrain flavor-physics operators. Within an Effective Field Theory (EFT) framework, we derive the helicity amplitudes for these processes at high energies and identify the leading contributions from dimension-six operators involving different quark flavors. Using available LHC data, we show that these processes are sensitive to non-trivial flavor structures and provide complementary constraints to those from low-energy observables. We illustrate this synergy through an explicit comparison between our LHC bounds with electroweak precision data, and with flavor limits derived from charged-current pion and kaon decays. In particular, we show that our HL-LHC projections can probe viable EFT scenarios proposed to accommodate the discrepancies in the extraction of the Cabibbo angle.
Source: Journal of High Energy Physics
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
Funders: European Commission, Fundação de Amparo à Pesquisa do Estado de São Paulo, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Conselho Nacional de Desenvolvimento Científico e Tecnológico, Centre National de la Recherche Scientifique, Universidade de São Paulo, Horizon 2020 Framework Programme, HORIZON EUROPE Framework Programme, Institut National de Physique Nucléaire et de Physique des Particules
Awards: G1101804518, G1764267590, G295657101, G2976044675, Hunting Invisibles: Dark sectors, Dark matter and Neutrinos, G3192445316, Unveiling the origin of flavor of quarks and leptons, G3900585984, Particle Physics Phenomenology, G434337789, G4492235900, G562116690, G6233082744, G6438247056, G6466192506, G781240106
OpenAlex ID: W7135169089