Results 121 to 130 of about 3,322 (216)

Measurement of the branching ratio of the decay and extraction of the CKM parameter [PDF]

open access: yesPhysics Letters B, 2004
A. Lai   +143 more
openaire   +1 more source

Light quark masses and CKM matrix elements from lattice QCD

open access: yes, 1999
I give a brief overview of recent results from lattice QCD calculations which are relevant for the phenomenology of the Standard Model. I discuss, in particular, the lattice determination of light quark masses and the calculation of those hadronic ...
LUBICZ, Vittorio, V. Lubicz
core   +1 more source

Natural complex plane for kaon CKM data: framework, status and future

open access: yes
Kaon physics can be used to independently determine three out of the four parameters of the CKM matrix, without any B physics input. Treating one parameter, |Vus|, or alternatively Wolfenstein λ, as well known, we show that the natural plane for the ...
Dery, Avital
core   +1 more source

Constraining SMEFT BSM scenarios with EWPO and $\Delta_{CKM}$

open access: yes, 2023
Precision observables are well known for constraining most of the Beyond Standard Model (BSM) scenarios tightly. We present here a simple and comprehensive fitting framework for various BSM scenarios to these observables. We start with the fit of $S$, $T$
Deka, Kuldeep   +2 more
core  

Radiative corrections to superallowed beta decays at O α 2 Z $$ \mathcal{O}\left({\alpha}^2Z\right) $$

open access: yesJournal of High Energy Physics
We compute O α 2 Z $$ \mathcal{O}\left({\alpha}^2Z\right) $$ radiative corrections to superallowed β decays with a heavy-particle effective field theory that systematically describes the interactions of low-energy ultrasoft photons with nuclei.
Ò. L. Crosas, E. Mereghetti
doaj   +1 more source

Unitarity triangle angles explained: a predictive new quark mass matrix texture

open access: yesJournal of High Energy Physics
We propose a novel quark mass matrix texture-pair with five free parameters, which fits the four quark mass ratios m s /m b , m d /m b , m c /m t , m u /m t , and the four CKM quark mixing observables.
P. F. Harrison, W. G. Scott
doaj   +1 more source

Unitarity triangle analysis in the Standard Model and sensitivity to new physics

open access: yes, 2003
By using the most recent determinations of the several theoretical and experimental input parameters, we update the Unitarity Triangle analysis in the Standard Model and discuss the sensitivity to New Physics effects.
Franco E   +5 more
core  

CKM parameter measurement with semileptonic Bs decay at LHCb [PDF]

open access: yesProceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2021), 2022
openaire   +1 more source

Sp(6, Z) modular symmetry in flavor structures: quark flavor models and Siegel modular forms for $$\widetilde{\Delta }\left(96\right)$$

open access: yesJournal of High Energy Physics
We study an approach to construct Siegel modular forms from Sp(6, Z). Zero-mode wave functions on T 6 with magnetic flux background behave Siegel modular forms at the origin.
Shota Kikuchi   +4 more
doaj   +1 more source

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