@misc{10481/95673,
year = {2024},
month = {7},
url = {https://hdl.handle.net/10481/95673},
abstract = {Searches for anomalous neutral triple gauge boson couplings (NTGCs) provide
important tests for the gauge structure of the standard model. In SMEFT (“standard
model effective field theory”) NTGCs appear only at the level of dimension-8 operators.
While the phenomenology of these operators has been discussed extensively in the literature,
renormalizable UV models that can generate these operators are scarce. In this work, we
study a variety of extensions of the SM with heavy fermions and calculate their matching to
d = 8 NTGC operators. We point out that the complete matching of UV models requires
four different CP-conserving d = 8 operators and that the single CPC d = 8 operator, most
commonly used by the experimental collaborations, does not describe all possible NTGC
form factors. Despite stringent experimental constraints on NTGCs, limits on the scale of
UV models are relatively weak, because their contributions are doubly suppressed (being
d = 8 and 1-loop). We suggest a series of benchmark UV scenarios suitable for interpreting
searches for NTGCs in the upcoming LHC runs, obtain their current limits and provide
estimates for the expected sensitivity of the high-luminosity LHC.},
organization = {Generalitat Valenciana under the grants GRISOLIAP/2020/145
and PROMETEO/2021/083},
organization = {Generalitat Valenciana
PROMETEO/2021/083 and the Ministerio de Ciencia e Innovacion PID2020-
113644GB-I00},
organization = {Grants PID2020-113775GB-I00 (AEI/10.13039/
501100011033) and CIPROM/2021/054 (Generalitat Valenciana)},
organization = {MCIN/AEI/10.13039/501100011033 and the European Union NextGenerationEU/PRTR
under the grant JDC2022-048687-I},
organization = {Grant AST22_6.5 (Consejería
de Universidad, Investigación e Innovación and Gobierno de España and Unión Europea
— NextGenerationEU)},
publisher = {SpringerLink},
keywords = {Effective Field Theories},
keywords = {SMEFT},
keywords = {Specific BSM Phenomenology},
title = {Fermionic UV models for neutral triple gauge boson vertices},
doi = {10.1007/JHEP07(2024)275},
author = {Cepedello Pérez, Ricardo and Esser, Fabian and Hirsch, Martin and Sanz, Veronica},
}