The polarized strange quark puzzle concerns the fact that the polarized strange quark density extracted from polarized inclusive deep inelastic scattering data is significantly negative, whereas it is zero or slightly positive when extracted from a combined analysis of polarized semi-inclusive and inclusive deep inelastic data. $SU(3)$ flavor symmetry, which, it is generally accepted, is not an exact symmetry, plays an important role in the inclusive analysis, and all the extracted polarized quark densities depend, to some extent, on the level of symmetry breaking introduced. But by far the most sensitive to the breaking is the strange quark density. In this paper we present a NLO QCD analysis of the world data on polarized inclusive DIS data on protons, neutrons and deuterons, including the final JLAB CLAS/EG1b data on the proton and deuteron, and study the sensitivity of the strange quark polarization to the breaking of flavor $SU(3)$.

中文翻译：

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夸克极化对flavorSU（3）对称破坏的敏感性

极化奇夸克难题涉及这样一个事实，即从极化包容性深非弹性散射数据中提取的极化奇怪夸克密度显着为负，而从极化半包容性和包容性深非弹性数据的组合分析中提取时，其为零或略为正。$\mathrm{小号}ü（3）$味道对称性（通常被接受）不是精确的对称性，在包容性分析中起着重要作用，并且所有提取的极化夸克密度在某种程度上取决于引入的对称性破坏程度。但是到目前为止，对断裂最敏感的是夸克密度。在本文中，我们对质子，中子和氘核的极化包含DIS的世界数据（包括最终的质子和氘核的JLAB CLAS / EG1b数据）进行了NLO QCD分析，并研究了夸克极化对奇异夸克极化的敏感性。风味的破坏$\mathrm{小号}ü（3）$。