Results 91 to 100 of about 2,235,212 (197)

Constraining |V cs | and physics beyond the Standard Model from exclusive (semi)leptonic charm decays

Journal of High Energy Physics
We study the available data on exclusive leptonic and semileptonic c → sℓ + ν decays within the Standard Model and beyond. Our analysis accounts for theory correlations between the relevant hadronic matrix elements through application of dispersive ...
Carolina Bolognani, Méril Reboud, Danny van Dyk, K. Keri Vos   +3 more
doaj   +1 more source

Measurement of heavy-flavour production, correlations and jets with ALICE

EPJ Web of Conferences, 2018
In this article, recent ALICE measurements of the RAA and v2 of electrons at mid-rapidity (|y|
Sakai Shingo
doaj   +1 more source

Uncovering tau leptons-enriched semi-visible jets at the LHC. [PDF]

Eur Phys J C Part Fields, 2023
Beauchesne H, Cazzaniga C, de Cosa A, Doglioni C, Fitschen T, di Cortona GG, Zhou Z.   +6 more
europepmc   +1 more source

Total decay rates of B mesons at NNLO-QCD

Journal of High Energy Physics
We update the Standard Model (SM) predictions for the lifetimes of the B +, B d and B s mesons within the heavy quark expansion (HQE), including the recently determined NNLO-QCD corrections to non-leptonic decays of the free b-quark.
Manuel Egner, Matteo Fael, Alexander Lenz, Maria Laura Piscopo, Aleksey V. Rusov, Kay Schönwald, Matthias Steinhauser   +6 more
doaj   +1 more source

Challenging B ¯ s → D s ∗ $$ {\overline{B}}_{(s)}\to {D}_{(s)}^{\left(\ast \right)} $$ form factors with the heavy quark expansion

Journal of High Energy Physics
Recent publications by three lattice QCD collaborations have provided an unprecedented wealth of theoretical predictions for the B ¯ q → D q ∗ $$ {\overline{B}}_q\to {D}_q^{\left(\ast \right)} $$ form factors, for spectator flavours q = u/d and q = s. We
Marzia Bordone, Nico Gubernari, Martin Jung, Danny van Dyk   +3 more
doaj   +1 more source

Study of the standard model with weak decays of charmed hadrons at BESIII. [PDF]

Natl Sci Rev, 2021
Li HB, Lyu XR.
europepmc   +1 more source

Nonperturbative parameters of inclusive Λ b decays from Small Velocity Sum Rules

Journal of High Energy Physics
We investigate the nonperturbative parameters entering the heavy quark expansion for the inclusive decay rates of the Λ b baryon, focusing on the kinetic term μ ̂ π 2 $$ {\hat{\mu}}_{\pi}^2 $$ and the Darwin term ρ ̂ D 3 $$ {\hat{\rho}}_D^3 $$ .
Blaženka Melić, Ivan Nišandžić
doaj   +1 more source

Standard Model predictions for rare K and B decays without new physics infection. [PDF]

Eur Phys J C Part Fields, 2023
Buras AJ.
europepmc   +1 more source

Analyzing the semileptonic and nonleptonic B c → J/ψ, η c decays

Journal of High Energy Physics
This study focuses on the decay of the B c meson to S-wave charmonia. Starting with lattice inputs on B c → J/ψ form factors, we have obtained the B c → η c form factors using heavy quark spin symmetry (HQSS) relations between the associated form factors
Aritra Biswas, Soumitra Nandi, Shantanu Sahoo   +2 more
doaj   +1 more source

Study of form factors and observables in B c − $$ {B}_c^{-} $$ → D ¯ ∗ 0 ℓ − ν ¯ ℓ $$ {\overline{D}}^{\left(\ast \right)0}{\ell}^{-}{\overline{\nu}}_{\ell } $$ and B c − $$ {B}_c^{-} $$ → D (∗)− ℓ + ℓ − decays

Journal of High Energy Physics
We investigate the decays B c − $$ {B}_c^{-} $$ → D ¯ ∗ 0 ℓ − ν ¯ ℓ $$ {\overline{D}}^{\left(\ast \right)0}{\ell}^{-}{\overline{\nu}}_{\ell } $$ and B c − $$ {B}_c^{-} $$ → D (∗)− ℓ + ℓ − within the Standard Model (SM), employing perturbative QCD (pQCD ...
Utsab Dey, Soumitra Nandi
doaj   +1 more source