Matches in SemOpenAlex for { <https://semopenalex.org/work/W1563063630> ?p ?o ?g. }
- W1563063630 abstract "A universal description of the hyperfine splittings (HFS) in bottomonium and the ${B}_{q}$ ($q=n$, $s$, $c$) mesons is obtained with a universal strong coupling constant ${ensuremath{alpha}}_{s}(ensuremath{mu})=0.310$ in a spin-spin potential. Other characteristics are calculated within the field correlator method, taking the freezing value of the strong coupling independent of ${n}_{f}$. The HFS $M({B}^{*})ensuremath{-}M(B)=45.5(1)text{ }text{ }mathrm{MeV}$, $M({B}_{s}^{*})ensuremath{-}M({B}_{s})=46.2(1)text{ }text{ }mathrm{MeV}$ are obtained in full agreement with experiment both for ${n}_{f}=3$ and ${n}_{f}=4$. In bottomonium, $M(ensuremath{Upsilon}(9460))ensuremath{-}M({ensuremath{eta}}_{b})=71.1text{ }text{ }mathrm{MeV}$ for ${n}_{f}=5$ agrees with the BABAR data, while a smaller HFS, equal to 63.4(5) MeV, is obtained for ${n}_{f}=4$. We predict HFS $M(ensuremath{Upsilon}(2S))ensuremath{-}M({ensuremath{eta}}_{b}(2S))=36(1)text{ }text{ }mathrm{MeV}$, $M(ensuremath{Upsilon}(3S))ensuremath{-}M(ensuremath{eta}(3S))=28(1)text{ }text{ }mathrm{MeV}$, and the mass difference $M({B}_{c}^{*})ensuremath{-}M({B}_{c})=58(1)text{ }text{ }mathrm{MeV}$, which gives $M({B}_{c}^{*})=6334(1)text{ }text{ }mathrm{MeV}$. If a coupling with open channels is neglected, for higher states the masses $M({B}_{c}(2^{1}S_{0}))=6865(5)text{ }text{ }mathrm{MeV}$ and $M({B}_{c}^{*}(2S^{3}S_{1}))=6901(5)text{ }text{ }mathrm{MeV}$ are calculated." @default.
- W1563063630 created "2016-06-24" @default.
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- W1563063630 date "2010-04-16" @default.
- W1563063630 modified "2023-10-16" @default.
- W1563063630 title "Hyperfine splittings in bottomonium and the<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:msub><mml:mi>B</mml:mi><mml:mi>q</mml:mi></mml:msub><mml:mo stretchy=false>(</mml:mo><mml:mi>q</mml:mi><mml:mo>=</mml:mo><mml:mi>n</mml:mi><mml:mo>,</mml:mo><mml:mi>s</mml:mi><mml:mo>,</mml:mo><mml:mi>c</mml:mi><mml:mo stretchy=false>)</mml:mo></mml:math>mesons" @default.
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- W1563063630 doi "https://doi.org/10.1103/physrevd.81.071502" @default.
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