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BOTTOM, STRANGE MESONS
($\mathit B$ = $\pm1$, $\mathit S$ = $\mp{}$1)
${{\mathit B}_{{{s}}}^{0}}$ = ${\mathit {\mathit s}}$ ${\mathit {\overline{\mathit b}}}$, ${{\overline{\mathit B}}_{{{s}}}^{0}}$ = ${\mathit {\overline{\mathit s}}}$ ${\mathit {\mathit b}}$,
similarly for ${{\mathit B}_{{{s}}}^{*}}$'s

INSPIRE JSON PDGID:

M186

**${{\mathit B}_{{{s2}}}^{*}{(5840)}^{0}}$**

$I(J^P)$ = $0(2^{+})$ I, J, P need confirmation.

Quantum numbers shown are quark-model predictions.

${{\mathit B}_{{{s2}}}^{*}{(5840)}^{0}}$ MASS

$5839.88$ $\pm0.12$ MeV

${\mathit m}_{{{\mathit B}_{{{s2}}}^{*0}}}-{\mathit m}_{{{\mathit B}_{{{s1}}}^{0}}}$

${\mathit m}_{{{\mathit B}_{{{s2}}}^{*0}}}-{\mathit m}_{{{\mathit B}^{+}}}$

$560.41$ $\pm0.19$ MeV

${{\mathit B}_{{{s2}}}^{*}{(5840)}^{0}}$ WIDTH

$1.49$ $\pm0.27$ MeV

${{\mathit B}_{{{s2}}}^{*}{(5840)}^{0}}$ DECAY MODES

Branching fractions are given relative to the one $\mathbf {DEFINED~AS~1}$.

Mode

Fraction ($\Gamma_i$ / $\Gamma$)

Scale Factor/
Conf. Level

P(MeV/c)

$\Gamma_{1}$

${{\mathit B}^{+}}{{\mathit K}^{-}}$

DEFINED AS 1

252

$\Gamma_{2}$

${{\mathit B}^{*+}}{{\mathit K}^{-}}$

$0.093$ $\pm0.018$

141

$\Gamma_{3}$

${{\mathit B}^{0}}{{\mathit K}_S^0}$

$0.43$ $\pm0.11$

245

$\Gamma_{4}$

${{\mathit B}^{*0}}{{\mathit K}_S^0}$

$0.04$ $\pm0.04$

Except where otherwise noted, content of the 2025 Review of Particle Physics is licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) license. The publication of the Review of Particle Physics is supported by US DOE, MEXT (Japan), INFN (Italy) and CERN. Individual collaborators receive support for their PDG activities from their respective institutes or funding agencies. © 2025. See LBNL disclaimers.

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${{\mathit B}_{{{s2}}}^{*}{(5840)}^{0}}$

**${{\mathit B}_{{{s2}}}^{*}{(5840)}^{0}}$**