Observation of four-jet structure in e+e− - annihilation at √s = 33 GeV
Observation of four-jet structure in e+e− - annihilation at √s = 33 GeV
复制标题
e+e− 中四射流结构的观测 - √s = 33 GeV 湮灭
DOI：
10.1016/0370-2693(82)90383-5
复制
发表时间：
1982
影响因子：
4.4
通讯作者：
C. Yanagisawa
中科院分区：
文献类型：
--
作者：
W. Bartel;D. Cords;P. Dittmann;R. Eichler;R. Felst;D. Haidt;H. Krehbiel;K. Meier;B. Naroska;L. O’Neill;P. Steffen;H. Wenninger;E. Elsen;A. Petersen;P. Warming;G. Weber;S. Bethke;H. Drumm;J. Heintze;G. Heinzelmann;K. Hellenbrand;R. Heuer;J. Krogh;P. Lennert;S. Kawabata;S. Komamiya;H. Matsumura;T. Nozaki;J. Olsson;H. Rieseberg;A. Wagner;A. Bell;F. Foster;G. Hughes;H. Wriedt;J. Allison;A. Ball;G. Bamford;R. Barlow;C. Bowdery;I. Duerdoth;J. Hassard;B. King;F. Loebinger;A. Macbeth;H. McCann;H. Mills;P. Murphy;K. Stephens;David T. Clarke;M. Goddard;R. Marshall;G. Pearce;J. Kanzaki;T. Kobayashi;M. Koshiba;M. Minowa;M. Nozaki;S. Odaka;S. Orito;A. Sato;H. Takeda;Y. Totsuka;Y. Watanabe;S. Yamada;C. Yanagisawa
e/sup +/e/sup -/.. -->反应强子的拓扑分布强子研究的质心能量约为33 GeV。实验分布的参数共面性和三足性，都敏感的事件与四喷流结构，显示出显着的偏差，从预期的两个和三个喷流事件。它们可以通过包含四喷流事件来很好地描述。观察到的效应的相对大小表明二阶QCD作为其可能的起源。
Topological distributions of hadrons from the reaction e/sup +/e/sup -/ ..-->.. hadrons are studied at center of mass energies of about 33 GeV. The experimental distributions in the parameters acoplanarity and tripodity, both sensitive to events with a four-jet structure, show significant deviations from the expectations for two- and three-jet events. They can be described well by the inclusion of four-jet events. The relative magnitude of the observed effect indicates second order QCD as its probable origin.