Measurement of αs from the moment of particle momenta within jets from e+e- annihilation

Kisoo Lee,Hiroyuki Sagawa,Y. S. Chung,J. S. Kang,K. W. Park,Kazuo Abe,Richard Breedon,Y. Fujii,Yoshimasa Kurihara,F. Liu,A. Maki,T. Nozaki,Tsunehiko Omori,Y. Sakai,Takashi Sasaki,Yasuhiro Sugimoto, Y. Takaiwa,Susumu Terada, P. N. Kirk, C. P. Cheng,W. X. Gao,W. G. Yan,M. H. Ye, A. Abashian, K. Gotow,D. Haim, M. E. Mattson, N. Morgan,L. E. Piilonen, K. L. Sterner,S. Lusin,C. Rosenfeld, S. Wilson,L. Y. Zheng,C. A. Fry,Ryuki Tanaka, L. M. Chinitz,Ko Winston, R. L. Lander, J. Rowe,J. R. Smith,David Stuart,S. Kanda,S. L. Olsen,K. Ueno,F. Kajino,R. Poling,T. Thomas,T. Aso,Kazumasa Miyano,H. Miyata, M. Oyoshi,Y. Yamashita,A. Bodek,B. J. Kim,T. Kumita,Y. K. Li, C. Velisarris,R. C. Walker,M. H. Lee, F. Sannes,Steve Schnetzer,Robert Stone, J. Vinson,S. Kobayashi,A. Murakami,Saroj Kumar Sahu,M. E. Zomorrodian,Sun Kee Kim,S. S. Myung,S. K. Choi,Dong-Chul Son, S. Ebara,S. Matsumoto,N. Takashimizu, T. Ishizuka

Physics Letters B（1993）

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摘要

We present a study of the third moment of the inclusive momentum distribution of particles within jets produced by e+e- annihilation at TRISTAN. In this analysis, the QCD coupling strength alpha(s) is determined by fits to the prediction of the Next-to-Leading Logarithm Parton-Shower model. The measured value of alpha(s) (57.9 GeV) = 0.134(-0.005)+0.006.

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