Doi, Takumi and Deka, Mridupawan and Dong, Shao-Jing and Draper, Terrence and Liu, Keh-Fei and Mankame, Devdatta and Mathur, Nilmani and Streuer, Thomas (2009) Nucleon strangeness form factors from N-f=2+1 clover fermion lattice QCD. PHYSICAL REVIEW D, 80 (9): 094503. ISSN 1550-7998,
Full text not available from this repository. (Request a copy)Abstract
We present the N-f=2+1 clover fermion lattice QCD calculation of the nucleon strangeness form factors. We evaluate disconnected insertions using the Z(4) stochastic method, along with unbiased subtractions from the hopping parameter expansion. We find that increasing the number of nucleon sources for each configuration improves the signal significantly. We obtain G(M)(s)(0)=-0.017(25)(07), where the first error is statistical, and the second is the uncertainties in Q(2) and chiral extrapolations. This is consistent with experimental values, and has an order of magnitude smaller error.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MAGNETIC-MOMENT; RADIUS; LOOPS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 03 Sep 2020 04:33 |
| Last Modified: | 03 Sep 2020 04:33 |
| URI: | https://pred.uni-regensburg.de/id/eprint/28235 |
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