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.

$\Delta _{0-}(B({{\mathit B}}$ $\rightarrow$ ${{\mathit K}^{*}}{{\mathit \ell}^{+}}{{\mathit \ell}^{-}}$))

INSPIRE   JSON  (beta) PDGID:
S049IA4
VALUE DOCUMENT ID TECN  COMMENT
$\bf{ -0.03 {}^{+0.08}_{-0.07}}$ OUR AVERAGE  Error includes scale factor of 1.2.
$0.00$ ${}^{+0.12}_{-0.10}$ $\pm0.02$ 1
AAIJ
2014M
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8 TeV
$0.06$ ${}^{+0.10}_{-0.09}$ $\pm0.02$ 2
AAIJ
2014M
 LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8 TeV
$-0.25$ ${}^{+0.20}_{-0.17}$ $\pm0.03$ 3
LEES
2012S
 BABR ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
$-0.29$ $\pm0.16$ $\pm0.09$ 4
WEI
2009A
 BELL ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit \Upsilon}{(4S)}}$
• • We do not use the following data for averages, fits, limits, etc. • •
$-0.15$ $\pm0.16$ 5
AAIJ
2012AH
 LHCB Repl. by AAIJ 2014M
$-0.56$ ${}^{+0.17}_{-0.15}$ $\pm0.03$ 6, 7
AUBERT
2009T
 BABR Repl. by LEES 2012S
1  For 1.1 $<$ q${}^{2}$ $<$ 6.0 GeV${}^{2}$/c${}^{4}$ using ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ as a lepton pair and assuming isospin symmetry for the B(${{\mathit B}}$ $\rightarrow$ ${{\mathit J / \psi}{(1S)}}{{\mathit K}^{*}{(892)}}$). Measurements in other q${}^{2}$ bins are also reported.
2  For 15.0 $<$ q${}^{2}$ $<$ 22.0 GeV${}^{2}$/c${}^{4}$ using ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$ as a lepton pair and assuming isospin symmetry for the B(${{\mathit B}}$ $\rightarrow$ ${{\mathit \psi}{(1S)}}{{\mathit K}^{*}{(892)}}$). Measurements in other q${}^{2}$ bins are also reported.
3  For 0.10 $<$ q${}^{2}<$ 8.12 GeV${}^{2}$/c${}^{4}$. Measurements in other q${}^{2}$ bins are also reported.
4  For q${}^{2}<$ 8.68 GeV${}^{2}$/c${}^{4}$.
5  For 1 $<$ q${}^{2}<$ 6 GeV${}^{2}$/c${}^{4}$.
6  For 0.1 $<$ ${{\mathit m}^{2}}_{{{\mathit \ell}^{+}} {{\mathit \ell}^{-}}}<$ 7.02 GeV${}^{2}$/c${}^{4}$.
7  Assumes equal production of ${{\mathit B}^{+}}$ and ${{\mathit B}^{0}}$ at the ${{\mathit \Upsilon}{(4S)}}$.
References