N. Penalva

activity

20192024

most citedFurther tests of lepton flavour universality from the charged lepton energy distribution in

b \to c

semileptonic decays: The case of

Λ_{b} \to Λ_{c} ℓ ν ˉ_{ℓ}

27 citations · 91 across the 8 of their papers we have counts for

collaborators

8 papers

hep-ph2024

The $Λ_{c} \to Λ l^{+} ν_{ℓ}$ weak decay including new physics

Fernando Alvarado, Luis Alvarez-Ruso, Eliecer Hernandez +2

We investigate the $Λ_{c} \to Λ ℓ^{+} ν_{ℓ}$ decay with a focus on potential new physics (NP) effects in the $ℓ = μ$ channel. We employ an effective Hamiltonian within the fram…

hep-ph2023★ 2 cited

Study of new physics effects in $B ˉ_{s} \to D_{s}^{(*)} τ^{-} ν ˉ_{τ}$ semileptonic decays using lattice QCD form factors and heavy quark effective theory

Neus Penalva, Jonathan M. Flynn, Eliecer Hernández +1

We benefit from the lattice QCD determination by the HPQCD of the Standard Model (SM) form factors for the $B ˉ_{s} \to D_{s}$ [Phys. Rev. D 101, 074513 (2020)] and the SM and tensor…

hep-ph2022★ 9 cited

New physics effects on $Λ_{b} \to Λ_{c}^{*} τ ν ˉ_{τ}$ decays

Meng-Lin Du, Neus Penalva, Eliecer Hernández +1

We benefit from a recent lattice determination of the full set of vector, axial and tensor form factors for the $Λ_{b} \to Λ_{c}^{*} (2595) τ ν ˉ_{τ}$ and $Λ_{c}^{*} (2625) τ ν ˉ_{τ}$ semileptonic…

hep-ph2022★ 3 cited

Visible energy and angular distributions of the charged particle from the $τ -$ decay in $b \to c τ (μ ν ˉ_{μ} ν_{τ}, π ν_{τ}, ρ ν_{τ}) ν ˉ_{τ}$ reactions

N. Penalva, E. Hernández, J. Nieves

We study the $d^{2} Γ_{d} / (d ω d cos θ_{d})$ , $d Γ_{d} / d cos θ_{d}$ and $d Γ_{d} / d E_{d}$ distributions, which are defined in terms of the visible energy and polar angle of the charged particle f…

hep-ph2021★ 17 cited

New physics and the tau polarization vector in $b \to c τ ν ˉ_{τ}$ decays

N. Penalva, E. Hernández, J. Nieves

For a general $H_{b} \to H_{c} τ ν ˉ_{τ}$ decay we analyze the role of the $τ$ polarization vector $P^{μ}$ in the context of lepton flavor universality violation studies. We use a ge…

hep-ph2020★ 11 cited

$B ˉ_{c} \to η_{c}$ , $B ˉ_{c} \to J / ψ$ and $B ˉ \to D^{(*)}$ semileptonic decays including new physics

N. Penalva, E. Hernández, J. Nieves

We apply the general formalism derived in N. Penalva et al. [Phys. Rev. D 101, 113004 (2020)] to the semileptonic decay of pseudoscalar mesons containing a $b$ quark. While present…

hep-ph2020★ 22 cited

Hadron and lepton tensors in semileptonic decays including new physics

N. Penalva, E. Hernández, J. Nieves

We extend our general framework for semileptonic decay, originally introduced in N. Penalva et al. [Phys. Rev. D100, 113007 (2019)], with the addition of new physics (NP) tensor te…

hep-ph2019★ 27 cited

Further tests of lepton flavour universality from the charged lepton energy distribution in $b \to c$ semileptonic decays: The case of $Λ_{b} \to Λ_{c} ℓ ν ˉ_{ℓ}$

Neus Penalva, Eliecer Hernández, Juan Nieves

In a general framework, valid for any $H \to H^{'} ℓ^{-} ν ˉ_{ℓ}$ semileptonic decay, we analyze the $d^{2} Γ/ (d ω d cos θ_{ℓ})$ and $d^{2} Γ/ (d ω d E_{ℓ})$ distributions, with $ω$ being the…

The Λc​→Λl+νℓ​ weak decay including new physics

Study of new physics effects in Bˉs​→Ds(∗)​τ−νˉτ​ semileptonic decays using lattice QCD form factors and heavy quark effective theory

New physics effects on Λb​→Λc∗​τνˉτ​ decays

Visible energy and angular distributions of the charged particle from the τ−decay in b→cτ(μνˉμ​ντ​,πντ​,ρντ​)νˉτ​ reactions

New physics and the tau polarization vector in b→cτνˉτ​ decays

Bˉc​→ηc​, Bˉc​→J/ψ and Bˉ→D(∗) semileptonic decays including new physics

Hadron and lepton tensors in semileptonic decays including new physics

Further tests of lepton flavour universality from the charged lepton energy distribution in b→c semileptonic decays: The case of Λb​→Λc​ℓνˉℓ​

The $Λ_{c} \to Λ l^{+} ν_{ℓ}$ weak decay including new physics

Study of new physics effects in $B ˉ_{s} \to D_{s}^{(*)} τ^{-} ν ˉ_{τ}$ semileptonic decays using lattice QCD form factors and heavy quark effective theory

New physics effects on $Λ_{b} \to Λ_{c}^{*} τ ν ˉ_{τ}$ decays

Visible energy and angular distributions of the charged particle from the $τ -$ decay in $b \to c τ (μ ν ˉ_{μ} ν_{τ}, π ν_{τ}, ρ ν_{τ}) ν ˉ_{τ}$ reactions

New physics and the tau polarization vector in $b \to c τ ν ˉ_{τ}$ decays

$B ˉ_{c} \to η_{c}$ , $B ˉ_{c} \to J / ψ$ and $B ˉ \to D^{(*)}$ semileptonic decays including new physics

Further tests of lepton flavour universality from the charged lepton energy distribution in $b \to c$ semileptonic decays: The case of $Λ_{b} \to Λ_{c} ℓ ν ˉ_{ℓ}$