论文标题
时空互惠的碎片光谱
The Fragmentation Spectrum from Space-Time Reciprocity
论文作者
论文摘要
分析$ e^+e^ - $ collisions中带电的hadron的单个包容性歼灭光谱，我面对局部党派 - 二重二元性的强调假设，并系统地重新定位了对小能量分数的依赖性。这种重新召集是基于$4-2ε$ dimensions的时间型和类似太空的分裂过程之间的互惠，我将其扩展到恢复全包式喷气生产的横截面的所有软项。在局部 - 伴有二元二元性假设下，由于射流半径为零，喷气机的产生分布基本上决定了哈德子的光谱。因此，我将重新摄入的射流功能作为具有有效的红外耦合的非扰动片段化函数。我发现与数据的一致性很高，并评论以前用于证明本地党派二线二元性合理的混合前日近似值。
Analyzing the single inclusive annihilation spectrum of charged hadrons in $e^+e^-$ collisions, I confront the hadronization hypothesis of local parton-hadron duality with a systematic resummation of the dependence on the small energy fraction. This resummation is based on the reciprocity between time-like and space-like splitting processes in $4-2ε$-dimensions, which I extend to resum all the soft terms of the cross-section for inclusive jet production. Under the local-parton-hadron duality hypothesis, the resulting distribution of jets essentially determines the spectrum of hadrons as the jet radius goes to zero. Thus I take the resummed perturbative jet function as the non-perturbative fragmentation function with an effective infra-red coupling. I find excellent agreement with data, and comment on the mixed leading log approximation previously used to justify local parton-hadron duality.
