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2012

D to K and D to pi semileptonic form factors from Lattice QCD

Koponen, J., Davies, C. T. H., Donald, G.

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We present a very high statistics study of D and D_s semileptonic decay form factors on the lattice.

We work with MILC N_f=2+1 lattices and use the Highly Improved Staggered Quark action (HISQ) for both the charm and the strange and light valence quarks.
We use both scalar and vector currents to determine the form factors f_0(q^2) and f_+(q^2) for a range of D and D_s semileptonic decays, including D to pi and D to K.
By using a phased boundary condition we are able to tune accurately to q^2=0 and explore the whole q^2 range allowed by kinematics.

D to K and D to pi semileptonic form factors from Lattice QCD · Around

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D. Guadagnoli, F. Mescia and S. Simula, PRD 73, 114504 (2006)
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BaBar Collaboration, PRD 76, 052005 (2007) and PRD 78, 051101(R) (2008)
2008
Earlier work this paper cites.

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HPQCD Collaboration; G. C. Donald, C. T. H. Davies, R. J. Dowdall, E. Follana, K. Hornbostel, J. Koponen, G. P. Lepage and C. McNeile, arXiv:1208.2855
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Cited in the paper.
C. Liu, The 5th International Workshop on Charm Physics, arXiv:1207.1171
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Cited in the paper.
A. Zupanc’s talk in the 5th International Workshop on Charm Physics
Cited in the paper.

Then

HPQCD Collaboration; H. Na, C. T. H. Davies, E. Follana, G. P. Lepage and J. Shigemitsu, PRD 82, 114506 (2010)
2010
Later among the works it cites.
HPQCD; G. Donald, C. T. H. Davies and J. Koponen, PoS(Lattice 2011)278
2011
Later among the works it cites.
J. Beringer et al. (Particle Data Group), PRD 86, 010001 (2012)
2012
Closest in time.

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