Kaon and D meson semileptonic form factors from lattice QCD

Fermilab Lattice and MILC Collaborations

Research output: Contribution to journalConference articlepeer-review


We present the status of on-going calculations of the K → πlv and D→ K(π)lv semileptonic form factors at q2 = 0. These form factors are important for the determination of the CKM matrix elements |Vus| and |Vcs(d) | respectively. This work uses the HISQ action for both valence quarks and sea quarks on MILC Nf = 2+1 + 1 configurations. We employ twisted boundary conditions to calculate the form factors at zero momentum transfer directly. The K → π results are an update to previously published results with new data at the physical point. The D → K(π) results are preliminary.

Original languageEnglish (US)
Article number374
JournalProceedings of Science
VolumePart F130500
StatePublished - 2014
Event32nd International Symposium on Lattice Field Theory, LATTICE 2014 - New York, United States
Duration: Jun 23 2014Jun 28 2014

ASJC Scopus subject areas

  • General


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