N. Penalva

activity

20192021

collaborators

4 papers

hep-ph2021

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

$B ˉ_{c} \to η_{c}$ , $B ˉ_{c} \to J / ψ$ 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

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

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…

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​

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 $Λ_{b} \to Λ_{c} ℓ ν ˉ_{ℓ}$