Visible matter is characterised by a single mass scale; namely, the proton mass. The
proton's existence and structure are supposed to be described by quantum chromodynamics …

We use our lattice QCD computation of the B c→ J/ψ form factors to determine the differential
decay rate for the semitauonic decay channel and construct the ratio of branching fractions …

The production fraction of the B c-meson with respect to the sum of B-and B¯ 0 mesons is
measured in both 7 and 13 TeV center-of-mass (cm) energy pp collisions produced by the …

Abstract The R (D^(*)) R (D (∗)) anomalies observed in B → D^(*) τ ν B→ D (∗) τ ν decays
have attracted much attention in recent years. In this paper, we study the B → D^(*) τ ν B→ D …

Recent experimental results of R (D (*)) deviate from the standard model (SM) by 3.1 σ,
suggesting a new physics (NP) that affects the b→ c τ ν¯ τ transition. Motivated by this, we …

We benefit from a recent lattice determination of the full set of vector, axial and tensor form
factors for the Λ b→ Λ c*(2595) τ ν¯ τ and Λ c*(2625) τ ν¯ τ semileptonic decays to study the …

In this work, we investigate the semileptonic decays of B c meson to η c (1 S, 2 S, 3 S), ψ (1
S, 2 S, 3 S) and X (3872) within the framework of covariant light-front quark model (CLFQM) …

Using a systematic, symmetry-preserving continuum approach to the Standard Model strong-
interaction bound-state problem, we deliver parameter-free predictions for all semileptonic B …

A bstract For a general H b→\({H} _c\tau {\overline {\nu}} _ {\tau}\) decay we analyze the role
of the τ polarization vector\({\mathcal {P}}^{\mu}\) in the context of lepton flavor universality …

During the past few years, hints of Lepton Flavour Universality (LFU) violation have been
observed in $ b\to c\tau\bar\nu $ and $ b\to s\ell^+\ell^-$ transitions. Recently, the $ D …