Using the published KTeV samples of KL→π±e "ν and KL→π±μ "ν decays, we perform a reanalysis of the scalar and vector form factors based on the dispersive parametrization. We obtain phase-space integrals IKe=0.15446±0.00025 and IKμ=0.10219±0.00025. For the scalar form factor parametrization, the only free parameter is the normalized form factor value at the Callan-Treiman point (C); our best-fit results in lnC=0.1915±0.0122. We also study the sensitivity of C to different parametrizations of the vector form factor. The results for the phase-space integrals and C are then used to make tests of the standard model. Finally, we compare our results with lattice QCD calculations of FK/Fπ and f+(0). © 2010 The American Physical Society.815Franzini,...
The local environment of Eu2+ (4 f7, S=7 2) in Ca1-x Eux B6 (0.003≤x≤1.00) is investigated by means ...
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We present STAR measurements of azimuthal anisotropy by means of the two- and four-particle cumulant...
The STAR Collaboration at the BNL Relativistic Heavy Ion Collider has measured two-pion correlation ...
We report calculations of the electric-field gradients (EFGs) in pure and doped CeM In5 (M=Co, Rh, a...
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We report a measurement of high-pT inclusive π0, η, and direct photon production in p+p and d+Au col...
We report on the mid-rapidity mass spectrum of di-electrons and cross sections of pseudoscalar and v...
We suggest a perturbative approach for generic choices for the universe equation of state and introd...
The envelope-function approach is used to theoretically study the effects of in-plane magnetic field...
In the present work, we discuss certain characteristic features encoded in some of the fundamental Q...
The J/ψ pT spectrum and nuclear modification factor (RAA) are reported for pT<5GeV/c and |y|<1 from ...
Thermodynamic, structural, and electronic properties of wurtzite Inx Ga1-x N alloys are studied by c...
The differential cross section and spin asymmetries for neutral pions produced within the intermedia...
We present two-dimensional (2D) two-particle angular correlations measured with the STAR detector on...
The rise of total, elastic and inelastic hadronic cross sections at high energies is investigated by...
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We present STAR measurements of azimuthal anisotropy by means of the two- and four-particle cumulant...
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