AI 中文总结
本文在Pythia中实现弦+${}^3P_0$模型扩展，研究DIS中非极化质子靶产生的超子自发极化，发现靶碎裂区$\Lambda$极化显著，呼吁测量以揭示强子化自旋依赖。
AI 中文摘要
我们已在Pythia事件生成器中实现了弦+${}^3P_0$自旋依赖强子化模型的最新扩展，该扩展包括自旋$1/2$重子的产生，用于模拟深度非弹性散射（DIS）。在Pythia中的实现是通过扩展StringSpinner包完成的，随后利用该包研究了在非极化质子靶的DIS中，电流碎裂区和靶碎裂区产生的$\bar{\Lambda}$和$\Lambda$超子的自发极化。我们发现靶碎裂区中的$\Lambda$超子具有较大的自发极化，这呼吁对此类可观测量进行测量，以揭示强子化过程中的夸克自旋依赖性。
英文摘要
We have implemented the recent extension of the string+${}^3P_0$ model of spin-dependent hadronization that includes the production of spin-$1/2$ baryons in the Pythia event generator for the simulation of deep inelastic scattering (DIS). The implementation in Pythia is performed by extending the StringSpinner package, which is then used to study the spontaneous polarization of $Λ$ and $\barΛ$ hyperons produced in the current and target fragmentation regions in DIS with an unpolarized proton target. We find a large spontaneous polarization for $Λ$s in the target fragmentation region, calling for the measurement of such observable that can shed light on the quark spin dependence of hadronization.
CommentsWork presented in 33rd International Workshop on Deep Inelastic Scattering and Related Subjects (DIS2026)
