Results 11 to 20 of about 31,231 (204)

The CKM parameters in the SMEFT [PDF]

open access: yesJournal of High Energy Physics, 2019
The extraction of the Cabibbo-Kobayashi-Maskawa (CKM) matrix from flavour observables can be affected by physics beyond the Standard Model (SM). We provide a general roadmap to take this into account, which we apply to the case of the Standard Model ...
Sébastien Descotes-Genon   +4 more
doaj   +7 more sources

The CKM Parameters [PDF]

open access: yesAnnual Review of Nuclear and Particle Science, 2017
The Cabibbo-Kobayashi-Maskawa matrix is a key element to describe flavour dynamics in the Standard Model. With only four parameters, this matrix is able to describe a large range of phenomena in the quark sector, such as CP violation and rare decays.
Descotes-Genon, Sébastien   +1 more
core   +6 more sources

CKM Parameters and Rare B Decays [PDF]

open access: yesLepton and Photon Interactions at High Energies, 2005
Measurements of the angles and sides of the unitarity triangle and of the rates of rare B meson decays are crucial for the precise determination of Standard Model parameters and are sensitive to the presence of new physics particles in the loop diagrams.
/INFN, Pisa, Forti, Francesco
core   +5 more sources

Simultaneous determination of CKM angle γ and charm mixing parameters [PDF]

open access: yesJournal of High Energy Physics, 2021
A combination of measurements sensitive to the CP violation angle γ of the Cabibbo-Kobayashi-Maskawa unitarity triangle and to the charm mixing parameters that describe oscillations between D 0 and D ¯ $$ \overline{D} $$ 0 mesons is performed.
The LHCb collaboration   +1008 more
doaj   +27 more sources

A New Approach to a Global Fit of the CKM Matrix

open access: yesEuropean Physical Journal C, 2001
We report on a global CKM matrix analysis taking into account most recent experimental and theoretical results. The statistical framework (Rfit) developed in this paper advocates formal frequentist statistics.
Diberder, F. Le   +3 more
core   +4 more sources

Direct CKM determination from W decays at future lepton colliders

open access: yesJournal of High Energy Physics
We project the reach of future lepton colliders for measuring CKM elements from direct observations of W decays. We focus our attention to |V cs | and |V cb | determinations, using FCC-ee as case study.
David Marzocca   +2 more
doaj   +2 more sources

Electroweak flavour unification

open access: yesJournal of High Energy Physics, 2022
We propose that the electroweak and flavour quantum numbers of the Standard Model (SM) could be unified at high energies in an SU(4) × Sp(6) L × Sp(6) R anomaly-free gauge model. All the SM fermions are packaged into two fundamental fields, Ψ L ∼ (4 , 6 ,
Joe Davighi, Joseph Tooby-Smith
doaj   +1 more source

CKM Matrix Parameters from an Algebra

open access: yes, 2023
We report a theoretical derivation of the Cabibbo-Kobayashi-Maskawa (CKM) matrix parameters and the accompanying mixing angles. These results are arrived at from the exceptional Jordan algebra applied to quark states, and from expressing flavor eigenstates (i.e. left-chiral states) as superposition of mass eigenstates (i.e.
TEJINDER PAL SINGH, ADITYA ANKUR PATEL
openaire   +1 more source

Gauge-Independent W-Boson Partial Decay Widths [PDF]

open access: yes, 2000
We calculate the partial decay widths of the W boson at one loop in the standard model using the on-shell renormalization scheme endowed with a gauge-independent definition of the Cabibbo-Kobayashi-Maskawa (CKM) mixing matrix.
A. Denner   +43 more
core   +3 more sources

Determination of the CKM unitarity triangle parameters by end 1999 [PDF]

open access: yesB Physics and CP Violation, 2000
Within the Standard Model, a review of the current determination of the CKM unitarity triangle parameters is presented, using experimental constraints from the measurements of |epsilon_K|, V_ub/V_cb, Delta m_d and from the limit on Delta m_s, available by end 1999.
Caravaglios, F.   +3 more
openaire   +3 more sources

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