dc.contributor.author | Alexandrou, Constantia | en |
dc.contributor.author | Hadjiyiannakou, Kyriakos | en |
dc.contributor.author | Koutsou, Giannis | en |
dc.contributor.author | O Cais, A. | en |
dc.contributor.author | Strelchenko, A. | en |
dc.creator | Alexandrou, Constantia | en |
dc.creator | Hadjiyiannakou, Kyriakos | en |
dc.creator | Koutsou, Giannis | en |
dc.creator | O Cais, A. | en |
dc.creator | Strelchenko, A. | en |
dc.date.accessioned | 2019-12-02T15:28:22Z | |
dc.date.available | 2019-12-02T15:28:22Z | |
dc.date.issued | 2012 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/58428 | |
dc.description.abstract | The exact evaluation of the disconnected diagram contributions to the flavor-singlet pseudo-scalar meson mass, the nucleon σ-term and the nucleon electromagnetic form factors is carried out utilizing GPGPU technology with the NVIDIA CUDA platform. The disconnected loops are also computed using stochastic methods with several noise reduction techniques. Various dilution schemes as well as the truncated solver method are studied. We make a comparison of these stochastic techniques to the exact results and show that the number of noise vectors depends on the operator insertion in the fermion loop. © 2012 Elsevier B.V. All rights reserved. | en |
dc.source | Computer Physics Communications | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84857784312&doi=10.1016%2fj.cpc.2012.01.023&partnerID=40&md5=b3af38a1555c9ad718092b271b9026eb | |
dc.subject | Approximation theory | en |
dc.subject | Quantum theory | en |
dc.subject | Nuclear physics | en |
dc.subject | High energy physics | en |
dc.subject | Lattice QCD | en |
dc.subject | Sigma terms | en |
dc.subject | Program processors | en |
dc.subject | Nucleon form factors | en |
dc.subject | Noise reduction technique | en |
dc.subject | Stochastic methods | en |
dc.subject | Fermion loops | en |
dc.subject | Electromagnetic form factors | en |
dc.subject | Exact results | en |
dc.subject | Noise vectors | en |
dc.subject | Nucleon sigma term | en |
dc.subject | Stochastic techniques | en |
dc.title | Evaluation of fermion loops applied to the calculation of the η ′ mass and the nucleon scalar and electromagnetic form factors | en |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | 10.1016/j.cpc.2012.01.023 | |
dc.description.volume | 183 | |
dc.description.issue | 6 | |
dc.description.startingpage | 1215 | |
dc.description.endingpage | 1224 | |
dc.author.faculty | Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences | |
dc.author.department | Τμήμα Φυσικής / Department of Physics | |
dc.type.uhtype | Article | en |
dc.description.notes | <p>Cited By :16</p> | en |
dc.source.abbreviation | Comput.Phys.Commun. | en |
dc.contributor.orcid | Alexandrou, Constantia [0000-0001-9136-3621] | |
dc.gnosis.orcid | 0000-0001-9136-3621 | |