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${\mathit{\Lambda }}_b^0$ ${\bar{\mathit{\Lambda }}}_b^0$ Production Asymmetry

${\mathit{A}}_P({\mathit{\Lambda }}_b^0$) = [$\sigma ({\mathit{\Lambda }}_b^0)$ $-$ $\sigma ({\bar{\mathit{\Lambda }}}_b^0)$] $/$ [$\sigma ({\mathit{\Lambda }}_b^0)$ + $\sigma ({\bar{\mathit{\Lambda }}}_b^0)$]

${\mathit{A}}_P({\mathit{\Lambda }}_b^0$)

INSPIRE   PDGID:

S040A13

VALUE (${10}^{-2}$) DOCUMENT ID TECN  COMMENT $\mathbf{1.4}\pm \mathbf{0.4}$ OUR AVERAGE  Error includes scale factor of 1.8. $1.92$ $\pm 0.35$ 1 AAIJ 2021 AJ LHCB $\mathit{p}\mathit{p}$ at 7 TeV $1.09$ $\pm 0.29$ 1 AAIJ 2021 AJ LHCB $\mathit{p}\mathit{p}$ at 8 TeV $-0.11$ $\pm 2.53$ $\pm 1.08$ 2 AAIJ 2017 BF LHCB $\mathit{p}\mathit{p}$ at 7 TeV $3.44$ $\pm 1.61$ $\pm 0.76$ 2 AAIJ 2017 BF LHCB $\mathit{p}\mathit{p}$ at 8 TeV 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

AAIJ 2021AJ JHEP 2110 060 Observation of a ${\mathrm{\Lambda }}_b^0-{\bar{\mathrm{\Lambda }}}_b^0$ production asymmetry in proton-proton collisions at $\sqrt{s}=7\text{ and }8\text{TeV}$ AAIJ 2017BF 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

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