Abstract
We present the first results for the Kl3 form factor from simulations with 2+1 flavors of dynamical domain wall quarks. Combining our result, namely, f+(0)=0.964(5) with the latest experimental results for Kl3 decays leads to |Vus|=0.2249(14), reducing the uncertaintity in this important parameter. For the O(p6) term in the chiral expansion we obtain Î"f=-0.013(5).
Original language | English |
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Article number | 141601 |
Journal | Physical review letters |
Volume | 100 |
Issue number | 14 |
DOIs | |
Publication status | Published - 2008 Apr 9 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy(all)