Results 1 to 10 of about 30,521 (228)

QED effects in inclusive semi-leptonic B decays [PDF]

Journal of High Energy Physics, 2023
We analyse in detail the QED corrections to the total decay width and the moments of the electron energy spectrum of the inclusive semi-leptonic B → X c eν decay. Our calculation includes short-distance electroweak corrections, the complete 𝒪(α) partonic
Dante Bigi, Marzia Bordone, Paolo Gambino, Ulrich Haisch, Andrea Piccione   +4 more
doaj   +7 more sources

QED factorization of two-body non-leptonic and semi-leptonic B to charm decays [PDF]

Journal of High Energy Physics, 2021
The QCD×QED factorization is studied for two-body non-leptonic and semi-leptonic B decays with heavy-light final states. These non-leptonic decays, like B ¯ s 0 → D s + π − $$ {\overline{B}}_{(s)}^0\to {D}_{(s)}^{+}{\pi}^{-} $$ and B ¯ d 0 → D + K − $$ {\
Martin Beneke, Philipp Böer, Gael Finauri, K. Keri Vos   +3 more
doaj   +4 more sources

Form factors for semi-leptonic B decays [PDF]

Proceedings of The 30th International Symposium on Lattice Field Theory — PoS(Lattice 2012), 2012
We report on form factors for the B->K l^+ l^- semi-leptonic decay process. We use several lattice spacings from a=0.12 fm down to 0.06 fm and a variety of dynamical quark masses with 2+1 flavors of asqtad quarks provided by the MILC Collaboration. These
/Fermilab, /Illinois U., Urbana, Bailey, Jon A., Du, Daping, El-Khadra, Aida X., Gottlieb, Steven, Jain, R.D., Kronfeld, Andreas S., Liu, Yuzhi, Meurice, Yannick, U., /Indiana, U., /Iowa, U., /Seoul, Van de Water, Ruth S., Zhou, Ran   +14 more
core   +6 more sources

Revisiting Minimal Lepton Flavour Violation in the light of leptonic CP violation

Journal of High Energy Physics, 2017
The Minimal Lepton Flavour Violation (MLFV) framework is discussed after the recent indication for CP violation in the leptonic sector. Among the three distinct versions of MLFV, the one with degenerate right-handed neutrinos will be disfavoured, if this
D.N. Dinh, L. Merlo, S.T. Petcov, R. Vega-Álvarez   +3 more
doaj   +3 more sources

Inclusive Semi-leptonic B Decays to order 1/m_b^4 [PDF]

, 2006
We give a systematic way to compute higher orders in the 1/m_b expansion in inclusive semi-leptonic decays at tree level. We reproduce the known 1/m_b^3 terms and compute the 1/m_b^4 terms at tree level.
Benjamin M Dassinger, M. Gremm, Particle Data Group collaboration, Sascha Turczyk, Thomas Mannel, V.A. Novikov   +5 more
core   +4 more sources

Comprehensive Bayesian analysis of rare (semi)leptonic and radiative [Formula: see text] decays. [PDF]

Eur Phys J C Part Fields, 2014
Beaujean F, Bobeth C, van Dyk D.
europepmc   +3 more sources

B → D 0 ∗ $$ B\to {D}_0^{\ast } $$ and B s → D s 0 ∗ $$ {B}_s\to {D}_{s0}^{\ast } $$ form factors from QCD light-cone sum rules

Journal of High Energy Physics, 2023
We present the first application of QCD light-cone sum rules (LCSRs) with B (s)-meson distribution amplitudes to the B s → D s 0 ∗ $$ {B}_{(s)}\to {D}_{(s)0}^{\ast } $$ form factors, where D s 0 ∗ $$ {D}_{(s)0}^{\ast } $$ is a charmed scalar meson.
Nico Gubernari, Alexander Khodjamirian, Rusa Mandal, Thomas Mannel   +3 more
doaj   +1 more source

Alternative treatment of the quark mass in the heavy quark expansion

Journal of High Energy Physics, 2023
The treatment of the quark mass plays an important role when it comes to increasing the precision of the predictions of the heavy quark expansion for inclusive heavy hadron decays.
Anastasia Boushmelev, Thomas Mannel, K. Keri Vos   +2 more
doaj   +1 more source

First extraction of inclusive V cb from q 2 moments

Journal of High Energy Physics, 2022
We present the first determination of V cb from inclusive B → X c ℓ v ¯ ℓ $$ B\to {X}_c \ell {\overline{v}}_{\ell} $$ using moments of the dilepton invariant mass, q 2.
Florian Bernlochner, Matteo Fael, Kevin Olschewsky, Eric Persson, Raynette van Tonder, K. Keri Vos, Maximilian Welsch   +6 more
doaj   +1 more source

Study of the b → dℓℓ transitions in the Standard Model and test of New Physics sensitivities

Journal of High Energy Physics, 2023
After incorporating all the available experimental data and the most up-to-date Lattice and light cone sum rule (LCSR) inputs on the form factors, we analyze the exclusive b → uℓν ℓ and b → dℓℓ decays simultaneously.
Aritra Biswas, Soumitra Nandi, Sunando Kumar Patra, Ipsita Ray   +3 more
doaj   +1 more source