A stochastic method for computing hadronic matrix elements

The European Physical Journal C

Kyriakos Hadjiyiannakou¹  Martha Constantinou¹  Constantia Alexandrou²  Vincent Drach³  Karl Jansen³  Simon Dinter³  Dru B. Renner⁴ 

[1] Department of Physics, University of Cyprus, P.O. Box 20537, 1678 , Nicosia, Cyprus;Department of Physics, University of Cyprus, P.O. Box 20537, 1678 , Nicosia, Cyprus;Computation-based Science and Technology Research Center, The Cyprus Institute, 15 Kypranoros Str., 1645 , Nicosia, Cyprus;NIC, DESY Zeuthen, Platanenallee 6, 15738 , Zeuthen, Germany;NIC, DESY Zeuthen, Platanenallee 6, 15738 , Zeuthen, Germany;Jefferson Lab., Newport News, USA;

关键词: Matrix Element;    Sequential Method;    Stochastic Method;    Stochastic Noise;    Quark Propagator;   

DOI  :  10.1140/epjc/s10052-013-2692-3

来源: Springer

【 摘 要 】

We present a stochastic method for the calculation of baryon three-point functions that is more versatile than the typically used sequential method. We analyze the scaling of the error of the stochastically evaluated three-point function with the lattice volume, and we found a favorable signal-to-noise ratio suggesting that our stochastic method can be used efficiently at large volumes to compute hadronic matrix elements.

【 授权许可】

CC BY