Constraining the Kπ vector form factor b
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Diogo R. Boito; Rafel Escribano; Matthias Jamin
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Article
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2010
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Elsevier Science
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English
⚖ 177 KB
A subtracted dispersive representation of the Kπ vector form factor, F Kπ + , is used to fit the Belle spectrum of τ → Kπν τ decays incorporating constraints from results on K l3 decays. Through the use of three subtractions, the slope and curvature of F Kπ + are obtained directly from the data yiel