PoS - Proceedings of Science
Volume 396 - The 38th International Symposium on Lattice Field Theory (LATTICE2021) - Oral presentation
Lattice Study of the Dibaryon System
Z.Y. Wang
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Pre-published on: May 16, 2022
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We presented a lattice-QCD calculation of dibaryon matrix elements with weak current insertions by using point-splitting interpolating field operators. Our method of calculating two-point, three-point and four-point correlation functions is described in detail and we make a comparison between the correlation functions obtained from our point-splitting operators and point operators and report the preliminary results. We found that the excited-state contamination is reduced by using point-splitting operators and our lattice result of proton axial charge is consistent with the results from RBC/UKQCD collaborations and the matrix elements of proton-proton fusion and double beta decay agree with the results from NPLQCD collaboration.
DOI: https://doi.org/10.22323/1.396.0629
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