This title appears in the Scientific Report :
2015
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevD.89.074511 in citations.
Please use the identifier: http://hdl.handle.net/2128/8740 in citations.
Magnetic form factors of the octet baryons from lattice QCD and chiral extrapolation
Magnetic form factors of the octet baryons from lattice QCD and chiral extrapolation
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 Q2 to the physical pseudoscalar masses and infinite volume using a formulation based on heavy-baryon chiral...
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Personal Name(s): | Shanahan, P. E. (Corresponding Author) |
---|---|
Horsley, R. / Nakamura, Y. / Pleiter, D. / Rakow, P. E. L. / Schierholz, G. / Stüben, H. / Thomas, A. W. / Young, R. D. / Zanotti, J. M. | |
Contributing Institute: |
Jülich Supercomputing Center; JSC John von Neumann - Institut für Computing; NIC |
Published in: | Physical Review D Physical review / D, 89 89 (2014 2014) 7 7, S. 074511 074511 |
Imprint: |
[S.l.]
Soc.
2014
2014-04-18 2014-04-01 |
DOI: |
10.1103/PhysRevD.89.074511 |
Document Type: |
Journal Article |
Research Program: |
Computational Science and Mathematical Methods |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/8740 in citations.
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 Q2 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. |