I. Rosell

activity

20042025

most citedThe Standard Model prediction for R_{e/mu}^{(pi,K)}

167 citations · 806 across the 38 of their papers we have counts for

collaborators

45 papers

hep-ph2025

Searching for heavy resonances via oblique parameters in non-linear effective frameworks

Ignasi Rosell, Antonio Pich, Juan Jose Sanz-Cillero

Within the framework of a general non-linear effective field theory describing the electroweak symmetry breaking, we perform a detailed analysis of the next-to-leading contribution…

hep-ph2025

Oblique parameters at next-to-leading order within electroweak strongly-coupled scenarios: constraining heavy resonances

Antonio Pich, Ignasi Rosell, Juan José Sanz-Cillero

Using a general (non-linear) effective field theory description of the Standard Model electroweak symmetry breaking, we analyse the impact on the electroweak oblique parameters of…

hep-ph2024

Analysis of beyond the Standard Model resonances with effective approaches and oblique parameters

Ignasi Rosell, Antonio Pich, Juan Jose Sanz-Cillero

Experiments have confirmed the presence of a mass gap between the Standard Model and potential New Physics. Consequently, the exploration of effective field theories to detect sign…

hep-ph2023

Heavy resonances and the oblique parameters S and T

Ignasi Rosell, Antonio Pich, Juan Jose Sanz-Cillero

It has been confirmed experimentally the existence of a mass gap between Standard Model (SM) and eventual Beyond Standard Model (BSM) fields. Therefore, the use of effective approa…

hep-ph2022

Computing one-loop radiative corrections in $τ \to π (K) ν [γ]$ and testing new physics

Ignasi Rosell

Without a doubt the ratios $R_{τ / P} \equiv Γ (τ \to P ν_{τ} [γ]) /Γ (P \to μ ν_{μ} [γ])$ ( $P = π, K$ ) give a convenient scenario to test the lepton universality, the CKM…

hep-ph2021

A new theoretical determination of $R_{τ / P}$ $(P = π, K)$

Ignasi Rosell

We have determined $R_{τ / P} \equiv Γ (τ \to P ν_{τ} [γ]) /Γ (P \to μ ν_{μ} [γ])$ ( $P = π, K$ ). Whereas $P$ decays are calculated by using Chiral Perturbation Theory (ChPT), $τ$ decays have been…

Searching for heavy resonances via oblique parameters in non-linear effective frameworks

Oblique parameters at next-to-leading order within electroweak strongly-coupled scenarios: constraining heavy resonances

Analysis of beyond the Standard Model resonances with effective approaches and oblique parameters

Heavy resonances and the oblique parameters S and T

Computing one-loop radiative corrections in τ→π(K)ν[γ] and testing new physics

A new theoretical determination of Rτ/P​ (P=π,K)

Computing one-loop radiative corrections in $τ \to π (K) ν [γ]$ and testing new physics

A new theoretical determination of $R_{τ / P}$ $(P = π, K)$