N. Gubernari

collaborators

9 papers

hep-ph2026

Decay constants of $B_{c}$ -mesons with vector and tensor currents

Eduard Costa i Reina, Nico Gubernari, Zachary WÃ¼thrich

We calculate the decay constants of the lowest-lying $B_{c}$ mesons in the spin-parity channels $J^{P} = 0^{-}, 0^{+}, 1^{-}, 1^{+}$ , commonly referred to as the $B_c,\, B_{c0}^*,\, B_c^*,\…

hep-ph2026

Three-particle di-light-cone distribution amplitudes of the $B$ -meson in heavy-quark effective theory

Riccardo Bartocci, Philipp BÃ¶er, Thorsten Feldmann +3

We present a systematic study of the three-particle di-light-cone distribution amplitudes (DLCDAs) of the $B$ -meson. They are defined through $B$ -meson--to--vacuum matrix elements…

hep-ph2026

Unitarity bounds and form-factor predictions for $B$ -meson decays

Nico Gubernari

This paper is organized around three main objectives. First, I review in a pedagogical way the unitarity bounds for form factors in $B$ -meson decays, together with the parametrizat…

hep-ph2026

Correlator with tensor currents and two masses at two loops

Terry Generet, Nico Gubernari, Eetu Loisa

We calculate the vacuum-to-vacuum correlator of two quark tensor currents with two massive quarks, retaining full momentum dependence. For the first time, we include perturbative c…

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

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…

Decay constants of Bc​-mesons with vector and tensor currents

Three-particle di-light-cone distribution amplitudes of the B-meson in heavy-quark effective theory

Unitarity bounds and form-factor predictions for B-meson decays

Correlator with tensor currents and two masses at two loops

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

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

Decay constants of $B_{c}$ -mesons with vector and tensor currents

Three-particle di-light-cone distribution amplitudes of the $B$ -meson in heavy-quark effective theory

Unitarity bounds and form-factor predictions for $B$ -meson decays

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

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