John Sloan
Florida State University
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Physical Review D | 1994
C. T. H. Davies; K. Hornbostel; A. Langnau; G. P. Lepage; A. Lidsey; Junko Shigemitsu; John Sloan
The spectrum of the [Upsilon] system is investigated using the nonrelativistic lattice QCD approach to heavy quarks and ignoring light quark vacuum polarization. We find good agreement with experiment for the [Upsilon],[Upsilon][prime],[Upsilon][prime][prime] and for the center of mass and fine structure of the [chi][sub [ital b]] states. The lattice calculations predict [ital b[bar b]] [ital D] states with a center of mass at (10.20[plus minus]0.07[plus minus]0.03) GeV. Fitting procedures aimed at extracting both ground and excited state energies are developed. We calculate a nonperturbative dispersion mass for the [Upsilon](1[ital S]) and compare it with tadpole-improved lattice perturbation theory.
Physics Letters B | 1996
C. T. H. Davies; K. Hornbostel; G. P. Lepage; A. Lidsey; Junko Shigemitsu; John Sloan
Abstract We present first results for B c spectroscopy using Lattice QCD. We use a non-relativistic effective action, matched to full QCD, which includes spin-independent relativistic corrections. This approach represents a considerable step beyond the potential models previously available. We use multi-exponential fits to multiple correlation functions to extract ground and excited S states and give accurate values for the S state hyperfine splitting and the P state ( B c ∗∗ ) fine structure, including the effects of 1 P 1 3 P 1 mixing.We present first results for
Physics Letters B | 1995
C. T. H. Davies; K. Hornbostel; G. P. Lepage; A. Lidsey; Junko Shigemitsu; John Sloan
B_c
Physical Review D | 1996
A. Ali Khan; C. T. H. Davies; S. Collins; John Sloan; Junko Shigemitsu
spectroscopy using Lattice Non-Relativistic QCD (NRQCD). For the NRQCD action the leading order spin-dependent and next to leading order spin-independent interactions have been included with tadpole-improved coefficients. We use multi-exponential fits to multiple correlation functions to extract ground and excited
arXiv: High Energy Physics - Lattice | 1996
Sara Collins; Robert G. Edwards; Urs M. Heller; John Sloan
S
arXiv: High Energy Physics - Lattice | 1997
Sara Collins; Robert G. Edwards; Urs M. Heller; John Sloan
states and give accurate values for the
arXiv: High Energy Physics - Lattice | 1996
Sara Collins; Robert G. Edwards; Urs M. Heller; John Sloan
S
arXiv: High Energy Physics - Lattice | 1995
John Sloan
state hyperfine splitting and the P state (
Physics Letters B | 1994
C. T. H. Davies; John Sloan; K. Hornbostel; A. Lidsey; G.P. Lepage; Junko Shigemitsu
B^{**}_c
Nuclear Physics B - Proceedings Supplements | 1997
Sara Collins; Robert G. Edwards; Urs M. Heller; John Sloan
) fine structure, including the effects of
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