Measurement of the processes e+e−→e+e− and e+e−→γγ at

Authors :: Akiya Miyamoto
Tadayuki Takahashi
T. Okusawa
T. Morimoto
S. Iwata
N. Fujiwara
A. Shirahashi
O. Yamakawa
H. Iwasaki
Y. X. Watanabe
S. Kawabata
Y. Teramoto
T. Suwada
A. Maruyama
H. B. Dijkstra
T. Ishii
J. Shimonaka
T. Ohshima
J. Fujimoto
Ryuhei Sugahara
T. Kishida
S. Kuroda
R. Enomoto
F. Ochiai
T. Tanaka
R. Kajikawa
A. Imanishi
A. Sugiyama
Toshiaki Tauchi
Tomohiro Matsuda
H. Takamure
S. Uno
Hideki Okuno
Toru Sato
N. Iida
O. Nitoh
S. Noguchi
Shiro Suzuki
H. Hayashii
S. Higashi
Terushige Fujii
S. Kato
T. Tsukamoto
K. Shimozawa
H. Kichimi
K. Nakamura
H. Masuda
K. Maruyama
Fuminori Sai
Kumataro Ukai
K. Takahashi
M. Yoshioka
Makoto Kobayashi
N. Kusuki
S. Yamamoto
M. Yamauchi
Akira Yamamoto
I. Adachi
Y. Yoshimura
H. Ikeda
T. Kamae
H. Ozaki
H. Aihara
K. Fujii
S. Yamashita
R. Itoh
H. Fujii
Source :: Physics Letters B. 200:391-396
Publication Year :: 1988
Publisher :: Elsevier BV, 1988.
Abstract: Differential cross sections for the processes e + e − → e + e − (Bhabha scattering) and e + e − → γγ have been measured with the TOPAZ detector at s =52 GeV . The results agree with the predictions of quantum electrodynamics (QED). The lower limits for the QED cut-off parameters have been obtained to be Λ + ⩾115 GeV and Λ − ⩾236 GeV for Bhabha scattering, and Λ + ⩾94 GeV and Λ − ⩾59 GeV for the reaction e + e − → γγ .

Subjects :: Physics
Elastic scattering
Nuclear and High Energy Physics
Particle physics
Antiparticle
Annihilation
Astrophysics::High Energy Astrophysical Phenomena
Electron–positron annihilation
Elementary particle
Nuclear physics
Antimatter
High Energy Physics::Experiment
Nuclear Experiment
Bhabha scattering
Lepton

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