Cristian Sierra

activity

20212025

most cited

B

meson anomalies and large

B^{+} \to K^{+} ν ν ˉ

in non-universal

U (1)^{'}

models

44 citations · 60 across the 6 of their papers we have counts for

collaborators

7 papers

hep-ph2025

Global fits and the search for new physics: past, present and future

Peter Athron, Csaba Balázs, Jon Butterworth +15

In this work, we review the history and current role of global fits in the search for physics beyond the Standard Model~(BSM), including precision tests of the Standard Model (SM).…

hep-ph2025

Constraints from muon $g - 2$ on a gauged non-universal $U (1)_{X}$ model with inverse see-saw neutrinos

J. S. Alvarado, R. Martinez, Cristian Sierra

We study the effects on a non-universal $U (1)_{X}$ extension of the Standard Model given the alternative value obtained by the Budapest-Marseille-Wuppertal (BMW) group for the anom…

hep-ph2025

Electroweak baryogenesis from charged current anomalies in $B$ meson decays

Peter Athron, Michael J. Ramsey-Musolf, Cristian Sierra +1

We demonstrate for the first time that new physics explaining the long standing charged $B$ meson anomalies, $R (D^{(*)})$ , can be the source of CP violation that explains the obser…

hep-ex2024★ 13 cited

Flavor Physics at the CEPC: a General Perspective

Xiaocong Ai, Wolfgang Altmannshofer, Peter Athron +147

We discuss the landscape of flavor physics at the Circular Electron-Positron Collider (CEPC), based on the nominal luminosity outlined in its Technical Design Report. The CEPC is d…

hep-ph2024★ 1 cited

Global fit to the 2HDM with generic sources of flavour violation using \textsf{GAMBIT}

Peter Athron, Andreas Crivellin, Tomás E. Gonzalo +2

We perform a global statistical analysis of the two-Higgs-doublet model with generic sources of flavour violation using \textsf{GAMBIT}. This is particularly interesting in light o…

hep-ph2023★ 44 cited

$B$ meson anomalies and large $B^{+} \to K^{+} ν ν ˉ$ in non-universal $U (1)^{'}$ models

Peter Athron, R. Martinez, Cristian Sierra

In view of both the latest LHCb measurement of $R_{K^{(*)}}$ and the new $2.8 σ$ deviation reported by Belle II on $B^{+} \to K^{+} ν ν ˉ$ decays, we present a fit to the $B$ meson a…

hep-ph2021★ 2 cited

A gauged non-universal $U (1)_{X}$ model to study muon $g - 2$ and $B$ meson anomalies

J. S. Alvarado, S. F. Mantilla, R. Martinez +2

We study a non-universal $U (1)_{X}$ extension of the Standard Model with an extended scalar sector of two doublets and one singlet plus three additional exotic quarks and two exoti…

Global fits and the search for new physics: past, present and future

Constraints from muon g−2 on a gauged non-universal U(1)X​ model with inverse see-saw neutrinos

Electroweak baryogenesis from charged current anomalies in B meson decays

Flavor Physics at the CEPC: a General Perspective

Global fit to the 2HDM with generic sources of flavour violation using \textsf{GAMBIT}

B meson anomalies and large B+→K+ννˉ in non-universal U(1)′ models

A gauged non-universal U(1)X​ model to study muon g−2 and B meson anomalies

Constraints from muon $g - 2$ on a gauged non-universal $U (1)_{X}$ model with inverse see-saw neutrinos

Electroweak baryogenesis from charged current anomalies in $B$ meson decays

$B$ meson anomalies and large $B^{+} \to K^{+} ν ν ˉ$ in non-universal $U (1)^{'}$ models

A gauged non-universal $U (1)_{X}$ model to study muon $g - 2$ and $B$ meson anomalies