Results 31 to 40 of about 3,322 (216)

New determination of the D0→K -π +π0 and D0→K -π +π +π - coherence factors and average strong-phase d [PDF]

open access: yes, 2014
Measurements of the coherence factors (RKππ0 and R K3π) and the average strong-phase differences (δDKππ0 and δDK3π) for the decays D0→K -π +π0 and D0→K -π +π +π - are presented.
Wilkinson, G   +35 more
core   +1 more source

Time-dependent angular analysis of the decay Bs -> J/psi phi and extraction of Delta Gamma_s and the CP-violating weak phase phi_s by ATLAS [PDF]

open access: yes, 2012
A measurement of Bs J/psi phi decay parameters, including the CP-violating weak phase phi_s and the decay width difference Delta Gamma_s is reported, using 4.9 fb-1 of integrated luminosity collected in 2011 by the ATLAS detector from LHC pp collisions ...
G. Khoriauli   +999 more
core   +1 more source

Flavor physics in the quark sector [PDF]

open access: yes, 2008
In the past decade, one of the major challenges of particle physics has been to gain an in-depth understanding of the role of quark flavor. In this time frame, measurements and the theoretical interpretation of their results have advanced tremendously. A
Smith, Christopher   +999 more
core   +1 more source

New determination of |V ub /V cb | from B s 0 $$ {B}_s^0 $$ → {K − , D s − $$ {D}_s^{-} $$ }μ + ν

open access: yesJournal of High Energy Physics, 2023
We update the full set of B ¯ $$ \overline{B} $$ s → K form factors using light-cone sum rules with an on-shell kaon. Our approach determines the relevant sum rule parameters — the duality thresholds — from a Bayesian fit for the first time.
Carolina Bolognani   +2 more
doaj   +1 more source

αs and |Vcs| determination, and CKM unitarity test, from W decays at NNLO

open access: yesPhysics 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
doaj   +1 more source

A Determination of the CKM Parameter |Vus|

open access: yes, 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.
openaire   +2 more sources

On the statistical treatment of the Cabibbo angle anomaly

open access: yesJournal 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
doaj   +1 more source

The CKM Matrix from Lattice QCD [PDF]

open access: yes, 2009
Lattice QCD plays an essential role in testing and determining the parameters of the CKM theory of flavor mixing and CP violation. Very high precisions are required for lattice calculations analyzing CKM data; I discuss the prospects for achieving them ...
Mackenzie, Paul B.
core   +1 more source

Measurement of HQET Parameters and CKM Matrix Elements [PDF]

open access: yesAIP 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.
openaire   +2 more sources

Minimal ten-parameter hermitian texture zeroes mass matrices and the CKM matrix [PDF]

open access: yesAIP Conference Proceedings, 1998
Hermitian mass matrices for the up and down quarks with texture zeroes but with the minimum number of parameters, ten, are investigated. We show how these {\em minimum parameter} forms can be obtained from a general set of hermitian matrices through weak basis transformations.
Baillargeon, M.   +3 more
openaire   +3 more sources

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