ISOSPIN ASYMMETRY

$\Delta _{0-}$ is defined as
${\Gamma\mathrm {({{\overline{\mathit B}}^{0}} \rightarrow {{\mathit f}_{{{d}}}})}–\Gamma\mathrm {({{\mathit B}^{-}} \rightarrow {{\mathit f}_{{{u}}}})}\over \Gamma\mathrm {({{\overline{\mathit B}}^{0}} \rightarrow {{\mathit f}_{{{d}}}})}+\Gamma\mathrm {({{\mathit B}^{-}} \rightarrow {{\mathit f}_{{{u}}}})}}$,
the isospin asymmetry of inclusive neutral and charged B decay.

$\Delta _{0-}(B({{\mathit B}}$ $\rightarrow$ ${{\mathit X}_{{{s}}}}{{\mathit \gamma}}$))

INSPIRE   JSON  (beta) PDGID:
S049IA1
VALUE DOCUMENT ID TECN  COMMENT
$\bf{ -0.005 \pm0.020}$ OUR AVERAGE
$-0.0048$ $\pm0.0149$ $\pm0.0150$ 1
WATANUKI
2019
BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
$-0.006$ $\pm0.058$ $\pm0.026$
AUBERT,B
2005R
 BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
1  Using a sum-of-exclusive technique with ${\mathit m}_{{{\mathit X}_{{{s}}}}}$ $<$ 2.8 GeV/c${}^{2}$.
References