scholarly journals Model-independent framework for determining finite-volume effects of spatially nonlocal operators

2021 ◽  
Vol 103 (9) ◽  
Author(s):  
Raúl A. Briceño ◽  
Christopher J. Monahan
Keyword(s):  
Finite Volume ◽  
Nonlocal Operators ◽  
Model Independent ◽  
Volume Effects

scholarly journals Finite-volume effects due to spatially nonlocal operators

2018 ◽  
Vol 98 (1) ◽  
Author(s):  
Raúl A. Briceño ◽  
Juan V. Guerrero ◽  
Maxwell T. Hansen ◽  
Christopher J. Monahan
Keyword(s):  
Finite Volume ◽  
Nonlocal Operators ◽  
Volume Effects

scholarly journals More on the flavor dependence of mϱ/fπ

2021 ◽  
Vol 2021 (7) ◽  
Author(s):  
Andrey Yu. Kotov ◽  
Daniel Nogradi ◽  
Kalman K. Szabo ◽  
Lorinc Szikszai
Keyword(s):  
Gauge Theory ◽  
Symmetry Breaking ◽  
Finite Volume ◽  
Continuum Limit ◽  
Low Energy ◽  
Translational Symmetry ◽  
Fundamental Representation ◽  
Staggered Fermions ◽  
Link Type ◽  
Volume Effects

Abstract In previous work, [arXiv:1905.01909], we have calculated the mϱ/fπ ratio in the chiral and continuum limit for SU(3) gauge theory coupled to Nf = 2, 3, 4, 5, 6 fermions in the fundamental representation. The main result was that this ratio displays no statistically significant Nf-dependence. In the present work we continue the study of the Nf-dependence by extending the simulations to Nf = 7, 8, 9, 10. Along the way we also study in detail the Nf-dependence of finite volume effects on low energy observables and a particular translational symmetry breaking unphysical, lattice artefact phase specific to staggered fermions.

scholarly journals Finite volume effects for nucleon and heavy meson masses

2010 ◽  
Vol 82 (3) ◽  
Author(s):  
Gilberto Colangelo ◽  
Andreas Fuhrer ◽  
Stefan Lanz
Keyword(s):  
Finite Volume ◽  
Heavy Meson ◽  
Volume Effects

scholarly journals Finite volume effects in low-energy neutron–deuteron scattering

2013 ◽  
Vol 41 (1) ◽  
pp. 015105 ◽  
Author(s):  
A Rokash ◽  
E Epelbaum ◽  
H Krebs ◽  
D Lee ◽  
U-G Meißner
Keyword(s):  
Finite Volume ◽  
Low Energy ◽  
Deuteron Scattering ◽  
Energy Neutron ◽  
Volume Effects

scholarly journals Finite volume effects inBKwith improved staggered fermions

2011 ◽  
Vol 83 (11) ◽  
Author(s):  
Jangho Kim ◽  
Chulwoo Jung ◽  
Hyung-Jin Kim ◽  
Weonjong Lee ◽  
Stephen R. Sharpe ◽  
...  
Keyword(s):  
Finite Volume ◽  
Staggered Fermions ◽  
Volume Effects

scholarly journals Nucleon Axial and Electromagnetic Form Factors

2018 ◽  
Vol 175 ◽  
pp. 06033 ◽  
Author(s):  
Yong-Chull Jang ◽  
Tanmoy Bhattacharya ◽  
Rajan Gupta ◽  
Huey-Wen Lin ◽  
Boram Yoon
Keyword(s):  
Excited States ◽  
Finite Volume ◽  
Magnetic Moment ◽  
Lattice Spacing ◽  
Form Factors ◽  
Electromagnetic Form Factors ◽  
Charge Radii ◽  
Model Independent ◽  
Magnetic Form Factors

We present results for the isovector axial, induced pseudoscalar, electric, and magnetic form factors of the nucleon. The calculations were done using 2 + 1 + 1-flavor HISQ ensembles generated by the MILC collaboration with lattice spacings a ≈ 0.12, 0.09, 0.06 fm and pion masses Mπ ≈ 310, 220, 130 MeV. Excited-states contamination is controlled by using four-state fits to two-point correlators and by comparing two-versus three-states in three-point correlators. The Q2 behavior is analyzed using the model independent z-expansion and the dipole ansatz. Final results for the charge radii and magnetic moment are obtained using a simultaneous fit in Mπ, lattice spacing a and finite volume.

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