| $\bf{
5698 \pm8}$
|
OUR AVERAGE
Error includes scale factor of 1.2.
|
| $5710$ $\pm20$ |
|
1 |
|
CDF |
| $5695$ ${}^{+17}_{-19}$ |
|
2 |
|
ALEP |
| $5704$ $\pm4$ $\pm10$ |
1944 |
3 |
|
ALEP |
| $5732$ $\pm5$ $\pm20$ |
2157 |
|
|
DLPH |
| $5681$ $\pm11$ |
1738 |
|
|
OPAL |
| • • • We do not use the following data for averages, fits, limits, etc. • • • |
| $5713$ $\pm2$ |
|
4 |
|
L3 |
|
1
AFFOLDER 2001F uses the reconstructed ${{\mathit B}}~$meson through semileptonic decay channels. The fraction of light ${{\mathit B}}~$mesons that are produced at $\mathit L$=1 ${{\mathit B}^{{**}}}$ states is measured to be $0.28$ $\pm0.06$ $\pm0.03$.
|
|
2
BARATE 1998L uses fully reconstructed ${{\mathit B}}$ mesons to search for ${{\mathit B}}{}^{**}$ production in the ${{\mathit B}}{{\mathit \pi}^{\pm}}$ system. In the framework of heavy quark symmetry (HQS), they also measured the mass of ${{\mathit B}_{{2}}^{*}}$ to be $5739$ ${}^{+8}_{-11}{}^{+6}_{-4}$ MeV/$\mathit c{}^{2}$ and the relative production rate of B( ${{\mathit b}}$ $\rightarrow$ ${{\mathit B}_{{2}}^{*}}$ $\rightarrow$ ${{\mathit B}}{}^{(*)}$ ${{\mathit \pi}}$ )/B( ${{\mathit b}}$ $\rightarrow$ ${{\mathit B}}$ $_{{{\mathit u}},{{\mathit d}}}$) = ($31$ $\pm9$ ${}^{+6}_{-5})\%$.
|
|
3
Using ${\mathit m}_{\mathrm { {{\mathit B}} {{\mathit \pi}} }}−{\mathit m}_{{{\mathit B}}}$ = $424$ $\pm4$ $\pm10$ MeV.
|
|
4
ACCIARRI 1999N uses inclusive reconstructed ${{\mathit B}}$ mesons to search for ${{\mathit B}}{}^{**}$ production in the ${{\mathit B}}{}^{(*)}{{\mathit \pi}^{\pm}}$ system. In the framework of HQET, they measured the mass of ${{\mathit B}^{*}_{{1}}}$ and ${{\mathit B}^{*}_{{2}}}$ to be $5670$ $\pm10$ $\pm13~$MeV and $5768$ $\pm5$ $\pm6$ with the B( ${{\mathit b}}$ $\rightarrow$ ${{\mathit B}}{}^{**}$)= $0.32$ $\pm0.03$ $\pm0.06$. They also reported the evidence for the existence of an excited ${{\mathit B}}$-meson state or mixture of states in the region $5.9 - 6.0$ GeV.
|
