Measurement of τ polarization in e+e− annihilation at

Authors :: H. Hanai
J. Haba
K. Abe
K. Amako
Y. Arai
T. Arima
Y. Asano
M. Chiba
Y. Chiba
M. Daigo
M. Fukawa
Y. Fukushima
H. Hamasaki
Y. Hemmi
M. Higuchi
T. Hirose
Y. Homma
N. Hosoda
N. Ishihara
Y. Iwata
J. Kanzaki
R. Kikuchi
T. Kondo
T.T. Korhonen
H. Kurashige
E.K. Matsuda
T. Matsui
M. Miura
K. Miyake
S. Mori
Y. Nagashima
Y. Nakagawa
T. Nakamura
I. Nakano
S. Odaka
K. Ogawa
T. Ohama
T. Ohsugi
H. Ohyama
K. Okabe
A. Okamoto
A. Ono
J. Pennanen
H. Sakamoto
M. Sakuda
M. Sato
N. Sato
M. Shioden
J. Shirai
T. Sumiyoshi
Y. Takada
F. Takasaki
M. Takita
N. Tamura
D. Tatsumi
K. Tobimatsu
T. Tsuboyama
S. Uehara
Y. Unno
T. Watanabe
Y. Watase
F. Yabuki
Y. Yamada
T. Yamagata
Y. Yonezawa
H. Yoshida
K. Yusa
Source :: Physics Letters B. 403:155-162
Publication Year :: 1997
Publisher :: Elsevier BV, 1997.
Abstract: The polarization of tau leptons in the reaction e+ e- --> tau+ tau- has been measured using a e+e- collider, TRISTAN, at the center-of-mass energy of 58 GeV. From the kinematical distributions of daughter particles in tau --> e nu nu-bar, mu nu nu-bar, rho nu or pi(K) nu decays, the average polarization of tau- and its forward-backward asymmetry have been evaluated to be 0.012 +- 0.058 and 0.029 +- 0.057, respectively.

Subjects :: Physics
Nuclear and High Energy Physics
Particle physics
Annihilation
media_common.quotation_subject
High Energy Physics::Phenomenology
Polarization (waves)
Asymmetry
law.invention
law
High Energy Physics::Experiment
Astrophysics::Earth and Planetary Astrophysics
Collider
Energy (signal processing)
Lepton
media_common

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