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19 April 2024 |
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Scaling of the Upsilon Spectrum in Lattice NRQCD | | C. T. H. Davies
; K. Hornbostel
; G. P. Lepage
; A. Lidsey
; P. McCallum
; J. Shigemitsu
; J. Sloan
; | | Date: |
18 Feb 1998 | | Journal: | Phys.Rev. D58 (1998) 054505 | | Subject: | hep-lat | | Abstract: | We present results for the spectrum of b-bbar bound states in the quenched approximation for three different values of the lattice spacing, in the range 0.05fm to 0.15fm. We find our results for spin-independent splittings in physical units to be independent of the lattice spacing, indicating the absence of systematic errors from discretisation effects. Spin-dependent splittings are more sensitive to the lattice spacing and higher order corrections to the action; we discuss the size of these effects and what can be done to arrive at a physical result. | | Source: | arXiv, hep-lat/9802024 | | Services: | Forum | Review | PDF | Favorites | |
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