Results 21 to 30 of about 2,071 (183)
Measurement of HQET Parameters and CKM Matrix Elements [PDF]
AIP Conference Proceedings, 2002 The determination of CKM matrix elements in the b-sector is discussed, emphasizing the new measurements of Vub and Vcb by the CLEO collaboration.
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Prospects of CKM parameter measurements at Belle II [PDF]
Proceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2017), 2017 The Belle II experiment is a substantial upgrade of the Belle detector that will operate at the SuperKEKB energy-asymmetric $e^+e^-$ collider. Belle II is preparing to start recording collisions at the $\Upsilon(4S)$ energy in 2018 and collect $50\text{ ab}^{-1}$ of data by 2025, a factor of 50 more than the Belle experiment.
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αs and |Vcs| determination, and CKM unitarity test, from W decays at NNLO
Physics Letters B, 2016 The hadronic (ΓhadW) and total (ΓtotW) widths of the W boson, computed at least at next-to-next-to-leading-order (NNLO) accuracy, are combined to derive a new precise prediction for the hadronic W branching ratio BhadW ≡ ΓhadW/ΓtotW=0.682±0.011par, using
David d'Enterria, Matej Srebre
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Metals, 2021 As a continuation of a previous research work carried out to estimate the Bond work index (wi) by using a simulator based on the cumulative kinetic model (CKM), a deeper analysis was carried out to determine the link between the kinetic and energy ...
Victor Ciribeni +6 more
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2000 CKM-triangle analysis a critical review with updated experimental inputs and theoretical parameters [PDF]
Journal of High Energy Physics, 2001 Within the Standard Model, a review of the current determination of the sides and angles of the CKM unitarity triangle is presented, using experimental constraints from the measurements of | _K|, |V_{ub}/V_{cb}|, m_d and from the limit on m_s, available in September 2000.
Marco Ciuchini +7 more
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On the statistical treatment of the Cabibbo angle anomaly
Journal of High Energy Physics, 2020 We point out that testing the equality of the Cabibbo angle as extracted from Γ(K → πlν), the ratio Γ(K → lν)/Γ(π → lν) and nuclear β decays is not identical to a test of first row unitarity of the Cabibbo-Kobayashi-Maskawa (CKM) matrix.
Yuval Grossman +2 more
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Prospects of CKM parameter measurements at Belle II [PDF]
Proceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2017), 2018 Semileptonic and leptonic $B$ decays are powerful probes to search for physics beyond the Standard Model (SM) as they can be calculated in the SM with high precision. We report recent results on rare $B$ decays with leptons from the Belle experiment at the KEKB $e^+e^−$ collider.
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Constraining the CKM parameters usingCPviolation in semileptonicBdecays [PDF]
Physical Review D, 1999 We discuss the usefulness of the CP violating semi-leptonic asymmetry a_{SL} not only as a signal of new physics, but also as a tool in constraining the CKM parameters. We show that this technique could yield useful results in the first years of running at the B factories.
Cahn, Robert N., Worah, Mihir P.
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Journal of High Energy Physics, 2023 We have extracted the ratio |V ub |/|V cb | from a combined study of the available inputs on B ¯ → π ρ ω ℓ − ν ¯ ℓ $$ \overline{B}\to \left(\pi, \rho, \omega \right){\ell}^{-}{\overline{\nu}}_{\ell } $$ and B ¯ B ¯ s → D ∗ D s ∗ ℓ − ν ¯ ℓ ℓ = μ or e ...
Aritra Biswas +2 more
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A Determination of the CKM Parameter |Vus|
, 2004 We present a determination of the CKM parameter |Vus| based on new measurements of the six largest KL branching fractions and semileptonic form factors by the KTeV (E832) experiment at Fermilab. We find |Vus| = 0.2252 +- 0.0008(KTeV) +- 0.0021(ext), where the errors are from KTeV measurements and from external sources.
KTeV Collaboration, Alexopoulos, T.
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