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| 001 | 860319 | ||
| 005 | 20200914100850.0 | ||
| 024 | 7 | _ | |a 10.1103/PhysRevD.60.074502 |2 doi |
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| 037 | _ | _ | |a FZJ-2019-01094 |
| 082 | _ | _ | |a 530 |
| 100 | 1 | _ | |a Spitz, A. |0 P:(DE-HGF)0 |b 0 |
| 245 | _ | _ | |a α S from Υ spectroscopy with dynamical Wilson fermions |
| 260 | _ | _ | |a Melville, NY |c 1999 |b Inst.812068 |
| 264 | _ | 1 | |3 online |2 Crossref |b American Physical Society (APS) |c 1999-09-03 |
| 264 | _ | 1 | |3 print |2 Crossref |b American Physical Society (APS) |c 1999-09-01 |
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| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 520 | _ | _ | |a We estimate the QCD coupling constant from a lattice calculation of the bottomonium spectrum. The second order perturbative expansion of the plaquette expectation value is employed to determine αS at a scale set by the 2S−1S and 1P−1S level splittings. The latter are computed in NRQCD in a dynamical gauge field background with two degenerate flavors of Wilson quarks at intermediate masses and extrapolated to the chiral limit. Combining the Nf=2 result with the quenched result at equal lattice spacing we extrapolate to the physical number of light flavors to find a value of α(5)¯MS(mZ)=0.1118(17). The error quoted covers both statistical and systematic uncertainties in the scale determination. An additional 5% uncertainty comes from the choice of the underlying sea quark formulation and from truncation errors in perturbative expansions. |
| 542 | _ | _ | |i 1999-09-03 |2 Crossref |u http://link.aps.org/licenses/aps-default-license |
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| 700 | 1 | _ | |a Struckmann, T. |0 P:(DE-HGF)0 |b 6 |
| 700 | 1 | _ | |a Ueberholz, P. |0 P:(DE-HGF)0 |b 7 |
| 700 | 1 | _ | |a Viehoff, J. |0 P:(DE-HGF)0 |b 8 |
| 773 | 1 | 8 | |a 10.1103/physrevd.60.074502 |b : American Physical Society (APS), 1999-09-03 |n 7 |p 074502 |3 journal-article |2 Crossref |t Physical Review D |v 60 |y 1999 |x 0556-2821 |
| 773 | _ | _ | |a 10.1103/PhysRevD.60.074502 |g Vol. 60, no. 7, p. 074502 |0 PERI:(DE-600)2844732-3 |n 7 |p 074502 |t Physical review / D |v 60 |y 1999 |x 0556-2821 |
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