Search for heavy neutral spinless particles using e+e- → e+e- and e+e- → γγ reactions in the CM energy range between 54 and 64 GeV

K. Abe, K. Amako, Y. Arai, T. Arima, Y. Asano, M. Chiba, Y. Chiba, M. Daigo, M. Fukawa, Y. Fukushima, J. Haba, Y. Hemmi, M. Higuchi, F. Hinode, T. Hirose, Y. Homma, Y. Hoshi, N. Hosoda, N. Ishihara, E. KanataniN. Kanda, N. Kanematsu, J. Kanzaki, R. Kikuchi, T. Kondo, T. T. Korhonen, A. E. Krüger, H. Kurashige, J. MacNaughton, T. Matsui, M. Miura, K. Miyake, S. Mori, Y. Nagashima, T. Nakamura, I. Nakano, S. Odaka, K. Ogawa, T. Ohama, T. Ohsugi, H. Ohyama, A. Okamoto, A. Ono, T. Oyama, H. Sakamoto, M. Sakuda, M. Sato, N. Sato, M. Shioden, J. Shirai, M. Shirakata, T. Sumiyoshi, A. Suzuki, Y. Takada, H. Takaki, F. Takasaki, M. Takita, N. Tamura, K. Tobimatsu, T. Tsuboyama, S. Uehara, Y. Unno, M. Utsumi, Y. Watase, F. Yabuki, Y. Yamada, T. Yamagata, Y. Yonezawa, H. Yoshida

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Heavy neutral spinless particles are searched for using e+e- collision data of CM energies between 54 and 64 GeV, collected with the VENUS detector at TRISTAN. The existence of such a particle might explain the anomalous e+e- → l+l-γγ reaction recently reported by a LEP experiment. Negative results lead to constraints on the partial decay width of such particles to electrons: in narrow resonance cases, Γee < 1MeV from Bhabha scattering data and ΓeeΓBγγ < 3 keV from γγ production data at the 95% CL for masses around 59 GeV/c2.

Original languageEnglish
Pages (from-to)119-124
Number of pages6
JournalPhysics Letters B
Issue number1
Publication statusPublished - Mar 18 1993
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


Dive into the research topics of 'Search for heavy neutral spinless particles using e<sup>+</sup>e<sup>-</sup> → e<sup>+</sup>e<sup>-</sup> and e<sup>+</sup>e<sup>-</sup> → γγ reactions in the CM energy range between 54 and 64 GeV'. Together they form a unique fingerprint.

Cite this