% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Bali:202895,
      author       = {Bali, Gunnar S. and Collins, Sara and Dürr, Stephan and
                      Kanamori, Issaku},
      title        = {{D} s → η , η ′ semileptonic decay form factors with
                      disconnected quark loop contributions},
      journal      = {Physical review / D},
      volume       = {91},
      number       = {1},
      issn         = {1550-7998},
      address      = {[S.l.]},
      publisher    = {Soc.},
      reportid     = {FZJ-2015-05042},
      pages        = {014503},
      year         = {2015},
      abstract     = {We calculate for the first time the form factors of the
                      semileptonic decays of the Ds meson to η and η′ using
                      lattice techniques. As a by-product of the calculation we
                      obtain the masses and leading distribution amplitudes of the
                      η and η′ mesons. We use Nf=2+1 nonperturbatively
                      improved clover fermions on configurations with a lattice
                      spacing a∼0.075  fm. We are able to obtain clear
                      signals for relevant matrix elements, using several noise
                      reduction techniques, for both the connected and the
                      disconnected contributions. This includes a new method for
                      reducing the variance of pseudoscalar disconnected two-point
                      functions. At zero momentum transfer, we obtain for the
                      scalar form factors, |fDs→η0|=0.564(11) and
                      |fDs→η′0|=0.437(18) at Mπ≈470  MeV, as well as
                      |fDs→η0|=0.542(13) and |fDs→η′0|=0.404(25) at
                      Mπ≈370  MeV, where the errors are statistical only.},
      cin          = {JSC},
      ddc          = {530},
      cid          = {I:(DE-Juel1)JSC-20090406},
      pnm          = {511 - Computational Science and Mathematical Methods
                      (POF3-511)},
      pid          = {G:(DE-HGF)POF3-511},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000348157800005},
      doi          = {10.1103/PhysRevD.91.014503},
      url          = {https://juser.fz-juelich.de/record/202895},
}