We examine the current state-of-the-art in nonperturbative calculations done with
Hamiltonians constructed in light-front quantization of various field theories. The language of …

The matrix elements of local operators such as the electromagnetic current, the energy–
momentum tensor, angular momentum, and the moments of structure functions have exact …

We investigate the magnetic dipole decays V→ P γ of various heavy-flavored mesons such
as (D, D*, D s, D s*, η c, J/ψ) and (B, B*, B s, B s*, η b, Υ) using the light-front quark model …

Based on the predictions of the relevant form factors from the covariant light-front quark
model, we show the branching fractions for the D (D_s) → (P,\, S,\, V,\, A)\, ℓ ν _ ℓ D (D …

A manifestly covariant formalism is used as a guide to construct a covariant extension of the
light-front quark model. Our analysis demonstrates in detail that covariance necessarily …

In the light-front quark model (LFQM) amenable to the simultaneous study of both the mass
spectroscopy and the wave function related observables, we examine the decay constants …

We calculate the decay constants of light and heavy-light pseudoscalar and vector mesons
with improved soft-wall holographic wavefuntions, which take into account the effects of both …

In this paper, we test the self-consistencies of the standard and the covariant light-front quark
model and study the zero-mode issue via the decay constants of pseudoscalar (P), vector …

We study the weak radiative decays of B b→ B n γ with B b (n) the antitriplet bottomed (octet)
baryons in the light-front quark model. We obtain that B (Λ b→ Λ γ)=(7.1±0.3)× 10-6, which …

We investigate the exclusive semileptonic B c→(D, η c, B, B s) ℓ ν ℓ, η b→ B c ℓ ν ℓ (ℓ= e, μ,
τ) decays using the light-front quark model constrained by the variational principle for the …