Results 81 to 90 of about 5,931 (207)

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

Non-Perturbative Heavy Quark Effective Theory: An application to Semi-Leptonic B-Decays [PDF]

, 2015
We review a lattice strategy how to non-perturbatively determine the coefficients in the HQET expansion of all components of the heavy-light axial and vector currents, including 1/m_h-corrections.
Sommer, Rainer, Simma, Hubert, Heitger, Jochen, Della Morte, Michele ; id_orcid, Della Morte, Michele, Jochen Heitger, Rainer Sommer, Michele Della Morte, Hubert Simma   +8 more
core   +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

Two-loop QCD correction to differential semi-leptonic b --> u decays in the shape-function region [PDF]

, 2009
We calculate the two-loop QCD correction to the form factors of on-shell b-quark decay to an energetic massless quark, which constitutes the last missing piece required for an View the MathML source determination of |Vub| from inclusive semi-leptonic ...
Beneke, M, Huber, T, Li, X Q, Huber, Tobias, Beneke, Martin, Li, Xin-Qiang   +5 more
core   +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

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

Rare semi-leptonic B meson decays [PDF]

, 2014
In this thesis, novel corrections to B → X˦ and B → Xl+l- decays, where X is a pseudoscalar or vector meson, are presented. These are the chromomagnetic matrix element, weak annihilation in a general four-quark operator basis and a long-distance charm ...
Lyon, James David
core  

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

Review of D Semi-leptonic Decays

, 2012
Semi-leptonic D decays continue to play an important role in the field of flavor physics. During this presentation, recent measurements from pseudo-scalar to pseudo-scalar modes, pseudo-scalar to vector modes, and rare modes will be discussed. These results are important for many purposes, such as validating the machinery of lattice QCD, extracting CKM
openaire   +2 more sources

Rare leptonic and semi-leptonic decays at LHCb

Rare leptonic and semi-leptonic decays offer an excellent opportunity to test the Standard Model of Particle Physics. These proceedings report on two recent LHCb measurements. The first is an observation of the rare $J/\psi \to \mu^{+}\mu^{-}\mu^{+}\mu^{-
Hadavizadeh, Tom
core   +1 more source