Prediction of the Ωbbb mass from lattice QCD

Stefan Meinel

doi:10.1103/PhysRevD.82.114514

Prediction of the Ω_bbb mass from lattice QCD

Stefan Meinel

Physics

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

Abstract

The mass of the triply-heavy baryon Ω_bbb is calculated in lattice QCD with 2+1 flavors of light sea quarks. The b quark is implemented with improved lattice nonrelativistic QCD. Gauge field ensembles from both the RBC/UKQCD and MILC collaborations with lattice spacings in the range from 0.08 fm to 0.12 fm are used. The final result for the Ω_bbb mass, which includes an electrostatic correction, is 14.371±0.004 _stat±0.011_syst±0.001_expGeV. The hyperfine splitting between the physical J=3/2 state and a fictitious J=1/2 state is also calculated.

Original language	English (US)
Article number	114514
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	82
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevD.82.114514
State	Published - Dec 29 2010

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.82.114514

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title = "Prediction of the Ωbbb mass from lattice QCD",

abstract = "The mass of the triply-heavy baryon Ωbbb is calculated in lattice QCD with 2+1 flavors of light sea quarks. The b quark is implemented with improved lattice nonrelativistic QCD. Gauge field ensembles from both the RBC/UKQCD and MILC collaborations with lattice spacings in the range from 0.08 fm to 0.12 fm are used. The final result for the Ωbbb mass, which includes an electrostatic correction, is 14.371±0.004 stat±0.011syst±0.001expGeV. The hyperfine splitting between the physical J=3/2 state and a fictitious J=1/2 state is also calculated.",

author = "Stefan Meinel",

note = "Funding Information: The authors thank the European Community (FP7/2007-2013, grant agreement 216594, CLASSiC project: www.classic-project.org) and the R{\'e}gion Lorraine for financial support.",

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N1 - Funding Information: The authors thank the European Community (FP7/2007-2013, grant agreement 216594, CLASSiC project: www.classic-project.org) and the Région Lorraine for financial support.

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N2 - The mass of the triply-heavy baryon Ωbbb is calculated in lattice QCD with 2+1 flavors of light sea quarks. The b quark is implemented with improved lattice nonrelativistic QCD. Gauge field ensembles from both the RBC/UKQCD and MILC collaborations with lattice spacings in the range from 0.08 fm to 0.12 fm are used. The final result for the Ωbbb mass, which includes an electrostatic correction, is 14.371±0.004 stat±0.011syst±0.001expGeV. The hyperfine splitting between the physical J=3/2 state and a fictitious J=1/2 state is also calculated.

AB - The mass of the triply-heavy baryon Ωbbb is calculated in lattice QCD with 2+1 flavors of light sea quarks. The b quark is implemented with improved lattice nonrelativistic QCD. Gauge field ensembles from both the RBC/UKQCD and MILC collaborations with lattice spacings in the range from 0.08 fm to 0.12 fm are used. The final result for the Ωbbb mass, which includes an electrostatic correction, is 14.371±0.004 stat±0.011syst±0.001expGeV. The hyperfine splitting between the physical J=3/2 state and a fictitious J=1/2 state is also calculated.

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Prediction of the Ω_bbb mass from lattice QCD

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