Sergey Syritsyn
Brookhaven National Laboratory
22 Papers
43 Citations
Sergey Syritsyn is an academic researcher from Brookhaven National Laboratory. The author has contributed to research in topics: Nucleon & Lattice QCD. The author has an hindex of 8, co-authored 22 publications. Previous affiliations of Sergey Syritsyn include Thomas Jefferson National Accelerator Facility & Lawrence Berkeley National Laboratory.
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Papers
Controlling Excited-State Contamination in Nucleon Matrix Elements
Boram Yoon,Rajan T. Gupta,Tanmoy Bhattacharya,Michael Engelhardt,Jeremy Green,Balint Joo,Huey-Wen Lin,John W. Negele,Kostas Orginos,Andrew Pochinsky,David Richards,Sergey Syritsyn,Frank Winter +12 more
TL;DR: In this article, a detailed analysis of methods to reduce statistical errors and excited-state contamination in the calculation of matrix elements of quark bilinear operators in nucleon states is presented.
Algorithms for disconnected diagrams in Lattice QCD
Arjun Singh Gambhir,Andreas Stathopoulos,Kostas Orginos,Boram Yoon,Rajan T. Gupta,Sergey Syritsyn +5 more
- 01 Nov 2016
TL;DR: In this article, an algorithm based on the synergy between hierarchical probing and singular value deflation was proposed to compute disconnected diagrams in Lattice QCD (operator insertion in a quark loop).
Excited state contamination in nucleon structure calculations
Jeremy Green,Stefan Krieg,John W. Negele,Andrew Pochinsky,Sergey Syritsyn +4 more
- 05 Jul 2012
TL;DR: In this paper, the authors explored the use of a two-state model fit to subtract off the contribution from excited states in nucleon structure calculations, and computed observables for three source-sink separations between 0.93 fm and 1.39 fm using clover-improved Wilson fermions and pion masses as low as 150 MeV.
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Excited state contamination in nucleon structure calculations
TL;DR: In this article, the authors explored the use of a two-state model fit to subtract off the contribution from excited states in nucleon structure calculations, and computed observables for three source-sink separations between 0.93 fm and 1.39 fm using clover-improved Wilson fermions and pion masses as low as 150 MeV.
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Aspects of Precision Calculations of Nucleon Generalized Form Factors with Domain Wall Fermions on an Asqtad Sea
J. D. Bratt,Robert Edwards,Michael Engelhardt,G. Fleming,Ph. Hägler,Meifeng Lin,Harvey B. Meyer,Bernhard Musch,John W. Negele,Kostas Orginos,Andrew Pochinsky,Massimiliano Procura,Dru B. Renner,David G. Richards,W. Schroers,Sergey Syritsyn +15 more
TL;DR: In this paper, the number of configurations required for constant statistical errors as a function of pion mass was calculated, and the coherent sink method was described to help achieve these statistics.
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