多重数起伏对高能碰撞中Erraticity行为的影响(英文)  

Influence of Multiplicity Fluctuation on the Erraticity Behaviour in High Energy Collisions

作　　者：刘志旭[1] 傅菁华 刘连寿[1] 

机构地区：[1]华中师范大学粒子物理研究所,武汉430079

出　　处：《高能物理与核物理》2000年第8期787-790,共4页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金! ( 1 99750 2 1 )

摘　　要：用蒙特 -卡洛模拟研究了多重数分布 (多重数在事件空间中的起伏 )对高能碰撞中erraticity行为的影响 ,并和NA2 7实验数据的结果进行了比较 .证明了erraticity现象对多重数起伏不敏感 .对于低的平均多重数 ,即使各个事件之间的多重数起伏不定 。The influence of multiplicity distribution (fluctuation of multiplicity in the event space) on the erraticity behaviour in high energy collisions is investigated via Monte Carlo simulation and compared with the experimental results from NA27 data. It is shown that, the erraticity phenomenon is insensitive to the multiplicity fluctuation. When the average multiplicity is low this phenomenon is dominated by the statistical fluctuations, also in the case of multiplicities fluctuating from event to event.

关 键 词：多重数分布 高能碰撞 Erraticity行为 

分 类 号：O572[理学—粒子物理与原子核物理]