${{\mathit \Lambda}_{{{b}}}^{0}}$ ${{\overline{\mathit \Lambda}}_{{{b}}}^{0}}$ Production Asymmetry
${{\mathit A}}_{P}({{\mathit \Lambda}_{{{b}}}^{0}}$) = [${\mathit \sigma (}{{\mathit \Lambda}_{{{b}}}^{0}}{)}$ $−$ ${\mathit \sigma (}{{\overline{\mathit \Lambda}}_{{{b}}}^{0}}{)}$] $/$ [${\mathit \sigma (}{{\mathit \Lambda}_{{{b}}}^{0}}{)}$ + ${\mathit \sigma (}{{\overline{\mathit \Lambda}}_{{{b}}}^{0}}{)}$]
${{\mathit A}}_{P}({{\mathit \Lambda}_{{{b}}}^{0}}$)
INSPIRE search
| S040A13 |
| $\bf{
1.4 \pm0.4}$
|
OUR AVERAGE
Error includes scale factor of 1.8.
|
| $1.92$ $\pm0.35$ |
1 |
|
LHCB |
| $1.09$ $\pm0.29$ |
1 |
|
LHCB |
| $-0.11$ $\pm2.53$ $\pm1.08$ |
2 |
|
LHCB |
| $3.44$ $\pm1.61$ $\pm0.76$ |
2 |
|
LHCB |
|
1
Integrated over the kinematic range 2 $<$ $p_T$ $<$ 27 GeV/c and 2.15 $<$ y $<$ 4.10.
|
|
2
Indirect determination in kinematic range 2 $<$ $p_T$ $<$ 30 GeV/c and 2.1 $<\eta $ $<$ 4.5 from production asymmetries of ${{\mathit B}^{+}}$, ${{\mathit B}^{0}}$ and ${{\mathit B}_{{{s}}}^{0}}$.
|
|
| References: |
|
|
JHEP 2110 060
|
Observation of a $\Lambda_b^0-\overline{\Lambda}_b^0$ production asymmetry in proton-proton collisions at $\sqrt{s} = 7 \textrm{ and } 8\,\textrm{TeV}$ |
|
|
PL B774 139
|
Measurement of ${{\mathit B}^{0}}$, ${{\mathit B}_{{{s}}}^{0}}$, ${{\mathit B}^{+}}$ and ${{\mathit \Lambda}_{{{b}}}^{0}}$ Production Asymmetries in 7 and 8 TeV Proton-Proton Collisions |
|
