A determination of α in e+e− annihilation at GeV

Authors :: J. S. Kang
R. C. Walker
Steve Schnetzer
S. Ebara
N. Takashimizu
K. Gotow
Moo Hyun Lee
P. N. Kirk
Y. Fujii
M. H. Ye
F. Liu
Kazuo Abe
Y. Yamashita
T. Ishizuka
T. Aso
Tsunehiko Omori
David Stuart
Richard Breedon
Y. K. Li
C. A. Fry
S. Lusin
Dong-Chul Son
Ryuki Tanaka
Bj Kim
Takashi Sasaki
K. Ueno
J. Rowe
H. Miyata
Y. Takaiwa
J. Vinson
Y. Sakai
A. Bodek
M. E. Mattson
Robert Stone
A. Murakami
Seong Keun Kim
J. R. Smith
F. Kajino
W. G. Yan
W. X. Gao
D. Y. Kim
T. Thomas
S. S. Myung
C. Velisarris
Hiroyuki Sagawa
S. Matsumoto
T. Nozaki
C. Rosenfeld
A. Maki
L. Y. Zheng
K. L. Sterner
Stephen L. Olsen
M. Oyoshi
A. Abashian
Yoshimasa Kurihara
S. Kobayashi
S. Kanda
R. L. Lander
C. P. Cheng
S. Wilson
Suyong Choi
Kisoo Lee
Saroj Kumar Sahu
Kazumasa Miyano
Yasuhiro Sugimoto
Y. S. Chung
Susumu Terada
R. Poling
S. Behari
T. Kumita
K. W. Park
L. E. Piilonen
L. M. Chinitz
Winston Ko
Source :: Physics Letters B. 355:394-400
Publication Year :: 1995
Publisher :: Elsevier BV, 1995.
Abstract: We present a study of differential two jet ratios in multi-hadronic final states produced by e(+)e(-) annihilation in the AMY detector at TRISTAN. The data are compared to the predictions of the next-to-leading logarithm parton-shower (NLL PS) Monte Carlo and the O(alpha(s)(2)) matrix element QCD models. We determine the strong coupling strength alpha(s)(57.3 GeV) = 0.130 +/- 0.006.

Subjects :: Quantum chromodynamics
Physics
Nuclear and High Energy Physics
Particle physics
Annihilation
Logarithm
Electron–positron annihilation
High Energy Physics::Phenomenology
Monte Carlo method
Jet (particle physics)
Nuclear physics
Strong coupling
High Energy Physics::Experiment
Matrix element

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