Transverse polarization of Lambda hyperons in hadronic collisions

• DOI: 10.48550/arxiv.2403.06133
• Publication Date: 2024-11-01
• Authors: Ying Gao; Kai-Bao Chen; Yu-Kun Song; Shu-Yi Wei
• Keywords: Nuclear Theory (nucl-th); High Energy Physics - Phenomenology; High Energy Physics - Experiment (hep-ex); High Energy Physics - Phenomenology (hep-ph); Nuclear Theory; Physics; QC1-999; FOS: Physical sciences; High Energy Physics - Experiment

13 pages, 15 figures<br/>The transverse polarization of $Λ$ hyperon within reconstructed jets in hadronic collisions offers a complementary platform to probe the polarized fragmentation function $D_{1T}^\perp$. We illustrate that by performing a global analysis of the transverse polarization of $Λ$ hyperons produced in different kinematic regions and in different hadronic collisions, such as $pp$, $p\bar p$, $pA$, and $γA$ collisions, we can pin down the flavor dependence of $D_{1T}^\perp$ which has been poorly constrained. Besides the single inclusive jet production, the $γ/Z^0$-boson associated jet production supplements with more capability in removing ambiguities in the flavor dependence of $D_{1T}^\perp$.<br/>