The first moment of the Kaon distribution amplitude from Nf=2+1 Domain Wall Fermions

Details The first moment of the Kaon distribution amplitude from Nf=2+1 Domain Wall Fermions The first moment of the Kaon distribution amplitude from Nf=2+1 Domain Wall Fermions

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006slft.confe.111j&link_type=abstract

Proceedings of the XXIVth International Symposium on Lattice Field Theory. July 23-28, 2006, Tucson, Arizona., p.111.1

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We present a lattice computation of the first moment of the kaon's leading-twist distribution am- plitude. We use ensembles with 2+1 dynamical flavours of domain wall fermions and the Iwasaki gauge action from the RBC and UKQCD joint dataset. We observe the expected chiral behaviour and obtain ξ (2 GeV) ≡ 3/5 a1 (2 GeV) = 0.032(3), which agrees very well with other results K obtained using QCD sum-rules and the recent lattice result from the UKQCD/QCDSF collabora- tion.

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