Abstract
We have calculated the decay constants of (Formula presented) and (Formula presented) mesons with lattice QCD. We use an (Formula presented)-improved action that takes light quark actions as a starting point, tuned so that it can be directly applied at the physical masses of the (Formula presented) and (Formula presented) quarks. Our results are (Formula presented) (Formula presented) (Formula presented) and (Formula presented) in the quenched approximation. The first error in each case is statistical, and the second is from perturbation theory. We show that discretization errors are under control in our approach and smaller than our statistical errors. The effects of the quenched approximation may raise our quenched result by up to 10%.
| Original language | English (US) |
|---|---|
| Number of pages | 1 |
| Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
| Volume | 58 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 1 1998 |
Fingerprint
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)
Cite this
(Formaula) meson decay constants in lattice QCD. / El-Khadra, A.; Kronfeld, Andreas; Mackenzie, Paul; Ryan, S.; Simone, James.
In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 58, No. 1, 01.01.1998.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - (Formaula) meson decay constants in lattice QCD
AU - El-Khadra, A.
AU - Kronfeld, Andreas
AU - Mackenzie, Paul
AU - Ryan, S.
AU - Simone, James
PY - 1998/1/1
Y1 - 1998/1/1
N2 - We have calculated the decay constants of (Formula presented) and (Formula presented) mesons with lattice QCD. We use an (Formula presented)-improved action that takes light quark actions as a starting point, tuned so that it can be directly applied at the physical masses of the (Formula presented) and (Formula presented) quarks. Our results are (Formula presented) (Formula presented) (Formula presented) and (Formula presented) in the quenched approximation. The first error in each case is statistical, and the second is from perturbation theory. We show that discretization errors are under control in our approach and smaller than our statistical errors. The effects of the quenched approximation may raise our quenched result by up to 10%.
AB - We have calculated the decay constants of (Formula presented) and (Formula presented) mesons with lattice QCD. We use an (Formula presented)-improved action that takes light quark actions as a starting point, tuned so that it can be directly applied at the physical masses of the (Formula presented) and (Formula presented) quarks. Our results are (Formula presented) (Formula presented) (Formula presented) and (Formula presented) in the quenched approximation. The first error in each case is statistical, and the second is from perturbation theory. We show that discretization errors are under control in our approach and smaller than our statistical errors. The effects of the quenched approximation may raise our quenched result by up to 10%.
UR - http://www.scopus.com/inward/record.url?scp=85039017963&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85039017963&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.58.014506
DO - 10.1103/PhysRevD.58.014506
M3 - Article
AN - SCOPUS:85039017963
VL - 58
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
SN - 1550-7998
IS - 1
ER -