Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Stüben, Hinnerk"'
Autor:
Hannaford-Gunn, Alec, Sankey, Edward, Can, Kadir Utku, Horsley, Roger, Perlt, Holger, Rakow, Paul E. L., Schierholz, Gerrit, Somfleth, Kim, Stüben, Hinnerk, Young, Ross D., Zanotti, James M.
Theoretical predictions of the proton--neutron mass difference and measurements of the proton's charge radius require inputs from the Compton amplitude subtraction function. Model-dependent and non-relativistic calculations of this subtraction functi
Externí odkaz:
http://arxiv.org/abs/2207.03040
Autor:
Hannaford-Gunn, Alec, Can, Kadir Utku, Horsley, Roger, Perlt, Holder, Rakow, Paul, Schierholz, Gerrit, Stüben, Hinnerk, Young, Ross, Zanotti, James
We report on the use of Feynman-Hellmann techniques to calculate the off-forward Compton amplitude (OFCA) in lattice QCD. At leading-twist, the Euclidean OFCA is parameterised by the Mellin moments of generalised parton distributions (GPDs). Hence we
Externí odkaz:
http://arxiv.org/abs/2202.03662
Autor:
Hannaford-Gunn, Alec, Can, Kadir Utku, Horsley, Roger, Nakamura, Yoshifumi, Perlt, Holger, Rakow, Paul E. L., Stüben, Hinnerk, Schierholz, Gerrit, Young, Ross D., Zanotti, James M.
We determine the properties of generalised parton distributions (GPDs) from a lattice QCD calculation of the off-forward Compton amplitude (OFCA). By extending the Feynman-Hellmann relation to second-order matrix elements at off-forward kinematics, t
Externí odkaz:
http://arxiv.org/abs/2110.11532
Autor:
Hollitt, Sophie, Horsley, Roger, Jackson, Paul D., Nakamura, Yoshifumi, Perlt, Holger, Rakow, Paul E. L., Schierholz, Gerrit, Stüben, Hinnerk, Young, Ross D., Zanotti, James M.
Early B-physics experiments have left us with a number of puzzles in heavy flavour physics. New lattice calculations (with a greater understanding of QCD effects in the Standard Model) will be needed to support the increase in experimental precision
Externí odkaz:
http://arxiv.org/abs/1811.06677
We present an update of BQCD, our Hybrid Monte Carlo program for simulating lattice QCD. BQCD is one of the main production codes of the QCDSF collaboration and is used by CSSM and in some Japanese finite temperature and finite density projects. Sinc
Externí odkaz:
http://arxiv.org/abs/1711.03836
Autor:
Hammer, Nicolay, Jamitzky, Ferdinand, Satzger, Helmut, Allalen, Momme, Block, Alexander, Karmakar, Anupam, Brehm, Matthias, Bader, Reinhold, Iapichino, Luigi, Ragagnin, Antonio, Karakasis, Vasilios, Kranzlmüller, Dieter, Bode, Arndt, Huber, Herbert, Kühn, Martin, Machado, Rui, Grünewald, Daniel, Edelmann, Philipp V. F., Röpke, Friedrich K., Wittmann, Markus, Zeiser, Thomas, Wellein, Gerhard, Mathias, Gerald, Schwörer, Magnus, Lorenzen, Konstantin, Federrath, Christoph, Klessen, Ralf, Bamberg, Karl-Ulrich, Ruhl, Hartmut, Schornbaum, Florian, Bauer, Martin, Nikhil, Anand, Qi, Jiaxing, Klimach, Harald, Stüben, Hinnerk, Deshmukh, Abhishek, Falkenstein, Tobias, Dolag, Klaus, Petkova, Margarita
Publikováno v:
Advances in Parallel Computing, vol. 27: Parallel Computing: On the Road to Exascale, eds. G.R. Joubert et al., p. 827, 2016
In spring 2015, the Leibniz Supercomputing Centre (Leibniz-Rechenzentrum, LRZ), installed their new Peta-Scale System SuperMUC Phase2. Selected users were invited for a 28 day extreme scale-out block operation during which they were allowed to use th
Externí odkaz:
http://arxiv.org/abs/1609.01507
Autor:
Nakamura, Yoshifumi, Stüben, Hinnerk
Publikováno v:
PoS Lattice2010:040,2010
We publish BQCD as free software under the GNU General Public License. BQCD is a Hybrid Monte-Carlo program that simulates lattice QCD with dynamical Wilson fermions. It is one of the main production programs of the QCDSF collaboration. The program c
Externí odkaz:
http://arxiv.org/abs/1011.0199
Autor:
Warkentin, Nikolaus, Braun, Vladimir M., Göckeler, Meinulf, Kaltenbrunner, Thomas, Schäfer, Andreas, Schierholz, Gerrit, Nakamura, Yoshifumi, Pleiter, Dirk, Horsley, Roger, Zanotti, James M., Rakow, Paul E. L., Stüben, Hinnerk
Publikováno v:
PoS LATTICE2008:154,2008
We compute moments of distribution amplitudes using gauge configurations with two flavors of clover fermions from QCDSF/DIK and operators which are optimized with respect to their behavior under the lattice symmetries. The knowledge of these quantiti
Externí odkaz:
http://arxiv.org/abs/0811.2212
Autor:
Göckeler, Meinulf, Horsley, Roger, Kaltenbrunner, Thomas, Nakamura, Yoshifumi, Pleiter, Dirk, Rakow, Paul E. L., Schäfer, Andreas, Schierholz, Gerrit, Stüben, Hinnerk, Warkentin, Nikolaus, Zanotti, James M.
Publikováno v:
Phys.Rev.Lett.101:112002,2008
We calculate low moments of the leading-twist and next-to-leading twist nucleon distribution amplitudes on the lattice using two flavors of clover fermions. The results are presented in the MSbar scheme at a scale of 2 GeV and can be immediately appl
Externí odkaz:
http://arxiv.org/abs/0804.1877
Autor:
Göckeler, Meinulf, Horsley, Roger, Nakamura, Yoshifumi, Perlt, Holger, Pleiter, Dirk, Rakow, Paul E. L., Schierholz, Gerrit, Schiller, Arwed, Streuer, Thomas, Stüben, Hinnerk, Zanotti, James M.
Publikováno v:
PoSLAT2007:041,2007
We report about on-going simulations of $N_f=2+1$ lattice QCD. We use a tadpole improved Symanzik gauge action and stout link smeared Wilson fermions with a clover term. We employ the Hasenbusch trick for the degenerate u- and d-quarks, and the RHMC
Externí odkaz:
http://arxiv.org/abs/0712.3525