Recent D0 Measurements of Forward-Backward Asymmetries for $p\overline{p}\rightarrow B^\pm, \Lambda_b^0,$ and $\Lambda_s^0$ Production

TL;DR

This paper reports measurements of forward-backward asymmetries in proton-antiproton collisions at 1.96 TeV, finding no asymmetry for B± and Λ_b^0 particles but a significant increase for Λ_s^0 with rapidity.

Contribution

First measurement of forward-backward asymmetries for these particles at Tevatron energies, revealing a new rapidity-dependent asymmetry for Λ_s^0.

Findings

A_FB(B±) and A_FB(Λ_b^0) are consistent with zero.

A_FB(Λ_s^0) increases with rapidity.

Results provide insights into particle production asymmetries.

Abstract

The Forward-Backward Asymmetries in the production of $p\overline{p}\rightarrow B^\pm, \Lambda_b^0,$ and $\Lambda_s^0$ particles for rapidities |y| < 2 are measred by D0 for $p\overline{p}$ collisions at $\sqrt{s}$ = 1.96 TeV at the Fermilab Tevatron. $A_{FB}(B^\pm)$ and $A_{FB}(\Lambda_b^0)$ are consistent with zero, while $A_{FB}(\Lambda_s^0)$ exhibits a statistically significant rise with increasing |y|.