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2011

Disconnected contributions to D-meson semi-leptonic decay form factors

Bali, G. S., Collins, S., Horsley, R. et al.

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We calculate the disconnected contribution to the form factor for the semileptonic decay of a D-meson into a final state, containing a flavor singlet eta meson.

We use QCDSF n_f=2+1 configurations at the flavor symmetric point m_u=m_d=m_s and the partially quenched approximation for the relativistic charm quark.
Several acceleration and noise reduction techniques for the stochastic estimation of the disconnected loop are tested.

Disconnected contributions to D-meson semi-leptonic decay form factors · Around

Built on

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S. Bernardson, P. McCarty and C. Thron, Monte Carlo methods for estimating linear combinations of inverse matrix entries in lattice QCD
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C. Thron, S. J. Dong, K. F. Liu and H. P. Ying, Pade-Z(2) estimator of determinants
1998
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R. G. Edwards and B. Jóo [SciDAC, LHPC and UKQCD Collaborations], The Chroma software system for lattice QCD
2005
Earlier work this paper cites.

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Then

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