M. Bordone

activity

20142026

most citedOn the Standard Model predictions for

R_{K}

and

R_{K^{*}}

456 citations · 1.8k across the 35 of their papers we have counts for

collaborators

Showing hep-phShow all

36 papers · 1 filter

hep-ph2026

Disentangling short- vs. long-distance dynamics in $B \to K^{*} μ^{+} μ^{-}$

Marzia Bordone, Gino Isidori, Arianna Tinari

We present an updated data-driven analysis of short- vs. long-distance dynamics in $B \to K^{*} μ^{+} μ^{-}$ . The analysis is based on the recent LHCb measurement of the full angular dist…

hep-ph2026

Implications of $K \to π ν ν ˉ$ for new physics in $B$ decays

Lukas Allwicher, Marzia Bordone

The new measurement of the $K^{+} \to π^{+} ν ν ˉ$ branching ratio by the NA62 collaboration represents an important milestone in precision flavour physics. Under different flavour assum…

hep-ph2026

Angular Analysis of $B \to D^{*} ℓ ν ˉ_{ℓ}$ from Lattice and Experiment: $∣ V_{c b} ∣$ and New Physics Constraints

Marzia Bordone, Ollie Heald, Andreas Jüttner

We present a combined angular analysis within and beyond the Standard Model (SM) of experimental measurements for the $B \to D^{*} ℓ ν ˉ_{ℓ}$ angular coefficients provided b…

hep-ph2025★ 1 cited

Probing Lepton Flavour Universality with $Λ_{b}$ decays to $τ^{+} τ^{-}$ final states

Marzia Bordone, Gino Isidori, Christiane Mayer +1

We present a study of the rare baryonic decay $Λ_{b} \to Λ τ^{+} τ^{-}$ as a probe of new physics (NP) coupled preferentially to third-generation fermions. Within the Standard Model, we e…

hep-ph2025

Challenging $B ˉ_{(s)} \to D_{(s)}^{(*)}$ Form Factors with the Heavy Quark Expansion

Marzia Bordone, Nico Gubernari, Martin Jung +1

Recent publications by three lattice QCD collaborations have provided an unprecedented wealth of theoretical predictions for the $B ˉ_{q} \to D_{q}^{(*)}$ form factors, for spectat…

hep-ph2025

Kaon Physics: A Cornerstone for Future Discoveries

Jason Aebischer, Atakan Tugberk Akmete, Riccardo Aliberti +153

The kaon physics programme, long heralded as a cutting-edge frontier by the European Strategy for Particle Physics, continues to stand at the intersection of discovery and innovati…

hep-ph2025★ 2 cited

Precision Tests in $b \to s ℓ^{+} ℓ^{-}$ ( $ℓ = e, μ$ ) at FCC-ee

Marzia Bordone, Claudia Cornella, Joe Davighi

The rare semi-leptonic decays $B \to K^{*} ℓ^{+} ℓ^{-}$ , with $ℓ = e, μ$ , are highly sensitive to new physics (NP) due to their suppression in the Standard Model (SM). Current LH…

hep-ph2024★ 1 cited

Probing third-generation New Physics with $K \to π ν ν ˉ$ and $B \to K^{(*)} ν ν ˉ$

Lukas Allwicher, Marzia Bordone, Gino Isidori +2

The recent observation of the $K^{+} \to π^{+} ν ν ˉ$ decay by NA62 is an important milestone in precision flavor physics. Together with evidence of $B^{+} \to K^{+} ν ν ˉ$ reported by Be…

hep-ph2024

New strategies for probing $B \to D^{*} ℓ ν ˉ_{ℓ}$ lattice and experimental data

Marzia Bordone, Andreas Juttner

We present an analysis of the exclusive semileptonic decay $B \to D^{*} ℓ ν ˉ_{ℓ}$ based on the Belle and Belle II data made public in 2023, combined with recent lattice-QCD c…

hep-ph2024

Focus topics for the ECFA study on Higgs / Top / EW factories

Jorge de Blas, Patrick Koppenburg, Jenny List +105

In order to stimulate new engagement and trigger some concrete studies in areas where further work would be beneficial towards fully understanding the physics potential of an $e^+e…

hep-ph2024★ 1 cited

Short- vs. long-distance physics in $B \to K^{(*)} ℓ^{+} ℓ^{-}$ : a data-driven analysis

Marzia Bordone, Gino isidori, Sandro Mächler +1

We analyze data on $B \to K μ^{+} μ^{-}$ and $B \to K^{*} μ^{+} μ^{-}$ decays in the whole dilepton invariant mass spectrum with the aim of disentangling short- vs. long-distance contributions. Th…

hep-ph2023

QED effects in inclusive semi-leptonic $B$ decays

Dante Bigi, Marzia Bordone, Paolo Gambino +2

We analyse in detail the QED corrections to the total decay width and the moments of the electron energy spectrum of the inclusive semi-leptonic $B \to X_{c} e ν$ decay. Our calculat…

hep-ph2022

Dispersive analysis of $Λ_{b} \to Λ (1520)$ local form factors

Yasmine Amhis, Marzia Bordone, Méril Reboud

We perform an analysis of $Λ_{b} \to Λ (1520)$ local form factors. We use dispersive techniques to provide a model-independent parametrisation of the form factors that can be used in th…

hep-ph2022

The semileptonic $B_{s}$ and $Λ_{b}$ widths

Marzia Bordone, Paolo Gambino

We present estimates of the semileptonic widths of the $B_{s}$ and $Λ_{b}$ hadrons. We employ the latest fit to the $B$ inclusive semileptonic data, the heavy quark expansion and latti…

hep-ph2021★ 62 cited

EOS -- A Software for Flavor Physics Phenomenology

Danny van Dyk, Frederik Beaujean, Thomas Blake +17

EOS is an open-source software for a variety of computational tasks in flavor physics. Its use cases include theory predictions within and beyond the Standard Model of particle phy…

hep-ph2021★ 113 cited

Three loop calculations and inclusive $V_{c b}$

Marzia Bordone, Bernat Capdevila, Paolo Gambino

We discuss the impact of the recent $O (α_{s}^{3})$ calculations of the semileptonic width of the $b$ quark and of the relation between pole and kinetic heavy quark masses by…

hep-ph2021★ 12 cited

Lepton flavour violation in rare $Λ_{b}$ decays

Marzia Bordone, Muslem Rahimi, K. Keri Vos

Lepton flavour violation (LFV) naturally occurs in many new physics models, specifically in those explaining the $B$ anomalies. While LFV has already been studied for mesonic decay…

hep-ph2021★ 62 cited

Lepton-flavour non-universality of $B ˉ \to D^{*} ℓ ν ˉ$ angular distributions in and beyond the Standard Model

Christoph Bobeth, Marzia Bordone, Nico Gubernari +2

We analyze in detail the angular distributions in $B ˉ \to D^{*} ℓ ν ˉ$ decays, with a focus on lepton-flavour non-universality. We investigate the minimal number of angular o…

hep-ph2021★ 41 cited

Exploiting dijet resonance searches for flavor physics

Marzia Bordone, Admir Greljo, David Marzocca

In this work, we reinterpret ATLAS and CMS dijet resonance searches to set robust constraints on all hypothetical tree-level scalar and vector mediators with masses up to 5 TeV, as…

hep-ph2021★ 12 cited

The LFU Ratio $R_{π}$ in the Standard Model and Beyond

Marzia Bordone, Claudia Cornella, Gino Isidori +1

We discuss the possibility of performing precise tests of $μ / e$ universality in $B \to π ℓ^{+} ℓ^{-}$ decays. We show that in wide regions of the dilepton invariant mass spectrum th…

hep-ph2021★ 1 cited

Heavy quark expansion of $Λ_{b} \to Λ^{*} (1520)$ form factors beyond leading order

Marzia Bordone

I review the parametrisation of the full set of $Λ_{b} \to Λ^{*} (1520)$ form factors in the framework of Heavy Quark Expansion, including next-to-leading-order $O (α_{s})$ and, f…

hep-ph2020★ 31 cited

Constraining flavour patterns of scalar leptoquarks in the effective field theory

Marzia Bordone, Oscar Cata, Thorsten Feldmann +1

We investigate the viability of extending the Standard Model with $S_{1}$ and $S_{3}$ scalar leptoquarks when the flavour structure is parametrized in terms of Froggatt-Nielsen charges…

hep-ph2020★ 46 cited

A puzzle in $B ˉ_{(s)}^{0} \to D_{(s)}^{(*) +} {π^{-}, K^{-}}$ decays and extraction of the $f_{s} / f_{d}$ fragmentation fraction

Marzia Bordone, Nico Gubernari, Tobias Huber +2

We provide updated predictions for the hadronic decays $B ˉ_{s}^{0} \to D_{s}^{(*) +} π^{-}$ and $B ˉ^{0} \to D^{(*) +} K^{-}$ . They are based on $O (α_{s}^{2})$ results for the QCD f…

hep-ph2019★ 89 cited

Heavy-Quark Expansion for $B ˉ_{s} \to D_{s}^{(*)}$ Form Factors and Unitarity Bounds beyond the $S U (3)_{F}$ Limit

Marzia Bordone, Nico Gubernari, Martin Jung +1

We carry out a comprehensive analysis of the full set of $B ˉ_{q} \to D_{q}^{(*)}$ form factors for spectator quarks $q = u, d, s$ within the framework of the Heavy-Quark Expansion (HQ…

Disentangling short- vs. long-distance dynamics in B→K∗μ+μ−

Implications of K→πννˉ for new physics in B decays

Angular Analysis of B→D∗ℓνˉℓ​ from Lattice and Experiment: ∣Vcb​∣ and New Physics Constraints

Probing Lepton Flavour Universality with Λb​ decays to τ+τ− final states

Challenging Bˉ(s)​→D(s)(∗)​ Form Factors with the Heavy Quark Expansion

Kaon Physics: A Cornerstone for Future Discoveries

Precision Tests in b→sℓ+ℓ− (ℓ=e,μ) at FCC-ee

Probing third-generation New Physics with K→πννˉ and B→K(∗)ννˉ

New strategies for probing B→D∗ℓνˉℓ​ lattice and experimental data

Focus topics for the ECFA study on Higgs / Top / EW factories

Short- vs. long-distance physics in B→K(∗)ℓ+ℓ−: a data-driven analysis

QED effects in inclusive semi-leptonic B decays

Dispersive analysis of Λb​→Λ(1520) local form factors

The semileptonic Bs​ and Λb​ widths

EOS -- A Software for Flavor Physics Phenomenology

Three loop calculations and inclusive Vcb​

Lepton flavour violation in rare Λb​ decays

Lepton-flavour non-universality of Bˉ→D∗ℓνˉ angular distributions in and beyond the Standard Model

Exploiting dijet resonance searches for flavor physics

The LFU Ratio Rπ​ in the Standard Model and Beyond

Heavy quark expansion of Λb​→Λ∗(1520) form factors beyond leading order

Constraining flavour patterns of scalar leptoquarks in the effective field theory

A puzzle in Bˉ(s)0​→D(s)(∗)+​{π−,K−} decays and extraction of the fs​/fd​ fragmentation fraction

Heavy-Quark Expansion for Bˉs​→Ds(∗)​ Form Factors and Unitarity Bounds beyond the SU(3)F​ Limit

Disentangling short- vs. long-distance dynamics in $B \to K^{*} μ^{+} μ^{-}$

Implications of $K \to π ν ν ˉ$ for new physics in $B$ decays

Angular Analysis of $B \to D^{*} ℓ ν ˉ_{ℓ}$ from Lattice and Experiment: $∣ V_{c b} ∣$ and New Physics Constraints

Probing Lepton Flavour Universality with $Λ_{b}$ decays to $τ^{+} τ^{-}$ final states

Challenging $B ˉ_{(s)} \to D_{(s)}^{(*)}$ Form Factors with the Heavy Quark Expansion

Precision Tests in $b \to s ℓ^{+} ℓ^{-}$ ( $ℓ = e, μ$ ) at FCC-ee

Probing third-generation New Physics with $K \to π ν ν ˉ$ and $B \to K^{(*)} ν ν ˉ$

New strategies for probing $B \to D^{*} ℓ ν ˉ_{ℓ}$ lattice and experimental data

Short- vs. long-distance physics in $B \to K^{(*)} ℓ^{+} ℓ^{-}$ : a data-driven analysis

QED effects in inclusive semi-leptonic $B$ decays

Dispersive analysis of $Λ_{b} \to Λ (1520)$ local form factors

The semileptonic $B_{s}$ and $Λ_{b}$ widths

Three loop calculations and inclusive $V_{c b}$

Lepton flavour violation in rare $Λ_{b}$ decays

Lepton-flavour non-universality of $B ˉ \to D^{*} ℓ ν ˉ$ angular distributions in and beyond the Standard Model

The LFU Ratio $R_{π}$ in the Standard Model and Beyond

Heavy quark expansion of $Λ_{b} \to Λ^{*} (1520)$ form factors beyond leading order

A puzzle in $B ˉ_{(s)}^{0} \to D_{(s)}^{(*) +} {π^{-}, K^{-}}$ decays and extraction of the $f_{s} / f_{d}$ fragmentation fraction

Heavy-Quark Expansion for $B ˉ_{s} \to D_{s}^{(*)}$ Form Factors and Unitarity Bounds beyond the $S U (3)_{F}$ Limit