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arXiv · 1710.08066

Comparison of different source calculations in two-nucleon channel at large quark mass

Takeshi Yamazaki·Ken-ichi Ishikawa. Yoshinobu Kuramashi
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Abstract

We investigate a systematic error coming from higher excited state contributions in the energy shift of light nucleus in the two-nucleon channel by comparing two different source calculations with the exponential and wall sources. Since it is hard to obtain a clear signal of the wall source correlation function in a plateau region, we employ a large quark mass as the pion mass is 0.8 GeV in quenched QCD. We discuss the systematic error in the spin-triplet channel of the two-nucleon system, and the volume dependence of the energy shift.

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Takeshi Yamazaki, Ken-ichi Ishikawa. Yoshinobu Kuramashi. 2017-10-23. Comparison of different source calculations in two-nucleon channel at large quark mass. https://doi.org/10.1051/epjconf/201817505019

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