Test of the universality of naive-time-reversal-odd fragmentation functions.
Test of the universality of naive-time-reversal-odd fragmentation functions.
复制标题
测试朴素时间反转奇碎片函数的普遍性。
作者：
D. Boer;Z. Kang;W. Vogelsang;F. Yuan
我们研究了 e+ e- 湮没和半包含深层非弹性散射过程中的“自发”超子横向极化，作为朴素时间反转奇数横向动量依赖碎裂函数的普遍性的测试。我们发现普遍性意味着各种可观察量之间存在明确的符号关系。这提供了一个独特的机会来研究碎片过程中的初始或最终状态相互作用效应并测试相关的因式分解。
We investigate the "spontaneous" hyperon transverse polarization in e+ e- annihilation and semi-inclusive deep inelastic scattering processes as a test of the universality of the naive-time-reversal-odd transverse momentum dependent fragmentation functions. We find that universality implies definite sign relations among various observables. This provides a unique opportunity to study initial or final state interaction effects in the fragmentation process and test the associated factorization.