Abstract
We report on a lattice QCD calculation of the [Formula presented] term, the scalar form factor, and [Formula presented]. The disconnected insertion part of [Formula presented] is found to be 1.8±0.1 times larger than the connected insertion contribution. The [Formula presented] dependence of [Formula presented] is about the same as [Formula presented] of the proton so that [Formula presented] MeV. The ratio [Formula presented]. Both results favor a [Formula presented] MeV, slightly larger than our direct calculation of [Formula presented] MeV. We also compute [Formula presented] and [Formula presented] and find that the agreement with those from the octet baryon mass splittings crucially depends on the inclusion of the large disconnected insertion. Finally, we give our result for the [Formula presented] term.
| Original language | English |
|---|---|
| Pages (from-to) | 5496-5500 |
| Number of pages | 5 |
| Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
| Volume | 54 |
| Issue number | 9 |
| DOIs | |
| State | Published - 1996 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)