Shanahan, P. E. and Horsley, R. and Nakamura, Y. and Pleiter, D. and Rakow, P. E. L. and Schierholz, G. and Stueben, H. and Thomas, A. W. and Young, R. D. and Zanotti, J. M. (2014) Magnetic form factors of the octet baryons from lattice QCD and chiral extrapolation. PHYSICAL REVIEW D, 89 (7): 074511. ISSN 2470-0010, 2470-0029
Full text not available from this repository.Abstract
We present a 2 + 1-flavor lattice QCD calculation of the electromagnetic Dirac and Pauli form factors of the octet baryons. The magnetic Sachs form factor is extrapolated at six fixed values of Q(2) to the physical pseudoscalar masses and infinite volume using a formulation based on heavy-baryon chiral perturbation theory with finite-range regularization. We properly account for omitted disconnected quark contractions using a partially quenched effective field theory formalism. The results compare well with the experimental form factors of the nucleon and the magnetic moments of the octet baryons.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | PERTURBATION-THEORY; QUARK MASS; NUCLEON; MOMENTS; RATIO; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Dirk Pleiter |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Nov 2019 09:34 |
| Last Modified: | 14 Nov 2019 09:34 |
| URI: | https://pred.uni-regensburg.de/id/eprint/10305 |
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