Precise B, Bs, and Bc meson spectroscopy from full lattice QCD

Eric Gregory; Christine Davies; Iain Kendall; Jonna Koponen; Kit Wong; Eduardo Follana; Elvira Gamiz; Peter Lepage; Eike Müller; Heechang Na; Junko Shigemitsu

doi:10.1103/PhysRevD.83.014506

Precise B, Bs, and Bc meson spectroscopy from full lattice QCD

Eric Gregory, Christine Davies, Iain Kendall, Jonna Koponen, Kit Wong, Eduardo Follana, Elvira Gamiz, Peter Lepage, Eike Müller, Heechang Na, Junko Shigemitsu

Department of Mathematical Sciences

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

77 Citations (SciVal)

Abstract

We give the first accurate results for B and Bs meson masses from lattice QCD including the effect of u, d, and s sea quarks, and we improve an earlier value for the
Bc meson mass. By using the highly improved staggered quark (HISQ) action for u/d,
s, and c quarks and NRQCD for the b quarks, we are able to achieve an accuracy in the masses of around 10 MeV. Our results are: mB=5.291(18) GeV, mBs=5.363(11)GeV, and mBc=6.280(10)GeV. Note that all QCD parameters here are tuned from other calculations, so these are parameter free-tests of QCD against experiment. We also give scalar, B∗s0 and axial-vector, Bs1 meson masses. We find these to be slightly below threshold for decay to BK and B∗K, respectively.

Original language	English
Number of pages	14506
Journal	Physical Review D
Volume	83
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevD.83.014506
Publication status	Published - 19 Jan 2011

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10.1103/PhysRevD.83.014506

https://arxiv.org/abs/1010.3848

Cite this

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abstract = "We give the first accurate results for B and Bs meson masses from lattice QCD including the effect of u, d, and s sea quarks, and we improve an earlier value for the Bc meson mass. By using the highly improved staggered quark (HISQ) action for u/d, s, and c quarks and NRQCD for the b quarks, we are able to achieve an accuracy in the masses of around 10 MeV. Our results are: mB=5.291(18) GeV, mBs=5.363(11)GeV, and mBc=6.280(10)GeV. Note that all QCD parameters here are tuned from other calculations, so these are parameter free-tests of QCD against experiment. We also give scalar, B∗s0 and axial-vector, Bs1 meson masses. We find these to be slightly below threshold for decay to BK and B∗K, respectively.",

author = "Eric Gregory and Christine Davies and Iain Kendall and Jonna Koponen and Kit Wong and Eduardo Follana and Elvira Gamiz and Peter Lepage and Eike M{\"u}ller and Heechang Na and Junko Shigemitsu",

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T1 - Precise B, Bs, and Bc meson spectroscopy from full lattice QCD

AU - Gregory, Eric

AU - Davies, Christine

AU - Kendall, Iain

AU - Koponen, Jonna

AU - Wong, Kit

AU - Follana, Eduardo

AU - Gamiz, Elvira

AU - Lepage, Peter

AU - Müller, Eike

AU - Na, Heechang

AU - Shigemitsu, Junko

PY - 2011/1/19

Y1 - 2011/1/19

N2 - We give the first accurate results for B and Bs meson masses from lattice QCD including the effect of u, d, and s sea quarks, and we improve an earlier value for the Bc meson mass. By using the highly improved staggered quark (HISQ) action for u/d, s, and c quarks and NRQCD for the b quarks, we are able to achieve an accuracy in the masses of around 10 MeV. Our results are: mB=5.291(18) GeV, mBs=5.363(11)GeV, and mBc=6.280(10)GeV. Note that all QCD parameters here are tuned from other calculations, so these are parameter free-tests of QCD against experiment. We also give scalar, B∗s0 and axial-vector, Bs1 meson masses. We find these to be slightly below threshold for decay to BK and B∗K, respectively.

AB - We give the first accurate results for B and Bs meson masses from lattice QCD including the effect of u, d, and s sea quarks, and we improve an earlier value for the Bc meson mass. By using the highly improved staggered quark (HISQ) action for u/d, s, and c quarks and NRQCD for the b quarks, we are able to achieve an accuracy in the masses of around 10 MeV. Our results are: mB=5.291(18) GeV, mBs=5.363(11)GeV, and mBc=6.280(10)GeV. Note that all QCD parameters here are tuned from other calculations, so these are parameter free-tests of QCD against experiment. We also give scalar, B∗s0 and axial-vector, Bs1 meson masses. We find these to be slightly below threshold for decay to BK and B∗K, respectively.

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SN - 1550-7998

VL - 83

JO - Physical Review D

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Precise B, Bs, and Bc meson spectroscopy from full lattice QCD

Abstract

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