| Full text | |
| Author(s): |
Cogollo, D.
;
Neves, M. J.
;
de Melo, Tessio B.
;
de Jesus, Alvaro S.
;
Oviedo-Torres, Y. M.
;
Queiroz, F. S.
Total Authors: 6
|
| Document type: | Journal article |
| Source: | MODERN PHYSICS LETTERS A; v. 40, n. 19N20, p. 23-pg., 2025-06-28. |
| Abstract | |
The charged Kaon meson (K+) features several hadronic decay modes, but the most relevant contribution to its decay width stems from the leptonic decay K+->mu(+)nu(mu). Given the precision acquired on the rare decay mode K+->mu(+)nu(mu)+X, one can use the data to set constraints on sub-GeV hidden sectors featuring light species that could contribute to it. Light gauge bosons that couple to muons could give rise to sizeable contributions. In this work, we will use data from the K+->mu(+)nu(mu)l(+)l(-) and K+->mu(+)nu(mu)nu(nu) over bar decays to place limits on light vector bosons present in Two Higgs Doublet Models (2HDM) augmented by an Abelian gauge symmetry, 2HDM-U(1)X. We put our findings into perspective with collider bounds, atomic parity violation, neutrino-electron scattering, and polarized electron scattering probes to show that rare Kaon decays provide competitive bounds in the sub-GeV mass range for different values of tan beta. (AU) | |
| FAPESP's process: | 21/01089-1 - Cherenkov Telescope Array: construction and first discoveries |
| Grantee: | Luiz Vitor de Souza Filho |
| Support Opportunities: | Special Projects |
| FAPESP's process: | 21/14335-0 - ICTP South American Institute for Fundamental Research: a regional center for Theoretical Physics |
| Grantee: | Nathan Jacob Berkovits |
| Support Opportunities: | Special Projects |