https://doi.org/10.1140/epja/i2018-12627-x
Regular Article - Theoretical Physics
Lattice study of 
form factors with twisted boundary conditions
School of Science, Xi’an Technological University, 710032, Xi’an, P. R. China
* e-mail: lining@xatu.edu.cn
Received:
5
June
2018
Accepted:
4
October
2018
Published online:
26
November
2018
We present a lattice calculation for the electromagnetic form factors of by using 
twisted mass gauge field configurations. We apply twisted boundary conditions to compute correlation functions at small values of momentum transfer that are difficult to access with periodic boundary conditions. The electromagnetic form factors with more small four-momentum transfer are determined, and further the charge radius and the quadrupole moment for are fitted, respectively.
© SIF, Springer-Verlag GmbH Germany, part of Springer Nature, 2018
