Joaquim Matias

activity

20232026

B

Anomalies

29 citations · 32 across the 4 of their papers we have counts for

collaborators

5 papers

hep-ph2026

New Physics in $b \to s τ^{+} τ^{-}$ Processes and Correlations with $R (D^{()})$ and $B \to K^{()} ν ν ˉ$ : An (SM)EFT Analysis

Guillermo Baltà, Andreas Crivellin, Joaquim Matias +1

Tauonic flavour-changing neutral-current transitions ( $b \to s τ^{+} τ^{-}$ ) are sensitive probes of New Physics connected to third-generation quarks and leptons. Motivated by the persist…

hep-ph2026

Impact of Hadronic Resonances on $B \to K^{(*)} τ^{+} τ^{-}$ Decays

Guillermo Baltà, Andreas Crivellin, Rafel Escribano +2

Neutral-current semileptonic $B$ decays are plagued by hadronic resonances across the dilepton invariant-mass squared spectrum, $q^{2}$ . For light leptons, $ℓ = e, μ$ , these resonanc…

hep-ph2025★ 3 cited

Impact on $L$ -observables of a new combined analysis of $B_{d, s} \to K^{(*)}$ form factors

Aritra Biswas, Nico Gubernari, Joaquim Matias +1

We explore the impact of a combined analysis of $B_{d, s} \to K^{(*)}$ form factors on a set of $L$ -observables. The $L$ -observables are constructed from ratios of branching fraction…

hep-ph2024

Optimised observables and new physics prospects in the penguin-mediated decays $B_{d (s)} \to K^{(*) 0} ϕ$

Aritra Biswas, Sébastien Descotes-Genon, Joaquim Matias +1

We study penguin-mediated $B ˉ_{d (s)} \to K ˉ^{* 0} (K^{* 0}) ϕ$ transitions, proposing a new optimised observable $L_{K^{*} ϕ}$ from the ratio of the corresponding branching ratios…

hep-ph2023★ 29 cited

Review of Semileptonic $B$ Anomalies

Bernat Capdevila, Andreas Crivellin, Joaquim Matias

We review the current status and implications of the anomalies (i.e. deviations from the Standard Model predictions) in semi-leptonic $B$ meson decays, both in the charged and in t…

New Physics in b→sτ+τ− Processes and Correlations with R(D(∗)) and B→K(∗)ννˉ: An (SM)EFT Analysis

Impact of Hadronic Resonances on B→K(∗)τ+τ− Decays

Impact on L-observables of a new combined analysis of Bd,s​→K(∗) form factors

Optimised observables and new physics prospects in the penguin-mediated decays Bd(s)​→K(∗)0ϕ

Review of Semileptonic B Anomalies

New Physics in $b \to s τ^{+} τ^{-}$ Processes and Correlations with $R (D^{()})$ and $B \to K^{()} ν ν ˉ$ : An (SM)EFT Analysis

Impact of Hadronic Resonances on $B \to K^{(*)} τ^{+} τ^{-}$ Decays

Impact on $L$ -observables of a new combined analysis of $B_{d, s} \to K^{(*)}$ form factors

Optimised observables and new physics prospects in the penguin-mediated decays $B_{d (s)} \to K^{(*) 0} ϕ$

Review of Semileptonic $B$ Anomalies