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Experimental mass limit for a fourth-generation sequential lepton from e+e- annihilations at s=56 GeV

  • G. N. Kim
  • , E. J. Kim
  • , D. Son
  • , A. Bacala
  • , R. Imlay
  • , P. Kirk
  • , R. R. McNeil
  • , W. Metcalf
  • , C. P. Cheng
  • , Z. P. Mao
  • , Y. Yan
  • , Y. T. Xu
  • , Y. C. Zhu
  • , A. Abashian
  • , K. Gotow
  • , F. Kajino
  • , E. Low
  • , F. Naito
  • , L. Piilonen
  • , R. Childers
  • C. Darden, S. Lusin, C. Rosenfeld, S. Wilson, M. Frautschi, H. Kagan, R. Kass, C. G. Trahern, Winston Ko, R. L. Lander, K. Maeshima, R. L. Malchow, J. R. Smith, K. Sparks, M. C.S. Williams, K. Abe, S. Chakrabarti, Y. Fujii, Y. Higashi, Y. Kurihara, A. Maki, T. Nozaki, T. Omori, P. Perez, H. Sagawa, Y. Sakai, Y. Sugimoto, Y. Takaiwa, S. Terada, K. Tsuchiya, R. Poling, J. Green, I. H. Park, S. Sakamoto, F. Sannes, S. Schnetzer, R. Stone, S. Trentalange, D. Zimmerman, K. Miyano, H. Miyata, M. Ogawa, Y. Yamashita, D. Blanis, A. Bodek, H. Budd, R. Coombes, S. Eno, C. A. Fry, H. Harada, Y. H. Ho, Y. K. Kim, T. Kumita, T. Mori, S. L. Olsen, N. M. Shaw, A. Sill, E. H. Thorndike, K. Ueno, H. W. Zheng, H. Asakura, K. Eguchi, H. Itoh, S. Kobayashi, A. Murakami, K. Toyoshima, J. S. Kang, H. J. Kim, S. K. Kim, M. H. Lee, S. S. Myung, H. Kozuka, S. Matsumoto, T. Sasaki, T. Takeda, R. Tanaka, R. Chiba, K. Hanaoka, S. Igarashi
  • Kyungpook National University
  • Louisiana State University
  • CAS - Institute of High Energy Physics
  • Virginia Polytechnic Institute and State University
  • University of South Carolina
  • Ohio State University
  • University of California at Davis
  • High Energy Accelerator Research Organization, Tsukuba
  • University of Minnesota Twin Cities
  • Rutgers - The State University of New Jersey, New Brunswick
  • Niigata University
  • Nihon Dental College
  • University of Rochester
  • University of Tsukuba
  • Saga University
  • Korea University
  • Chuo University
  • Institute of Science Tokyo

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

A search for pair production of fourth-generation sequential leptons in e+e- annihilation at a center-of-mass energy s=56 GeV is reported. Event topologies corresponding to the cases where one particle decays leptonically while the other decays hadronically as well as those where both particles decay hadronically were explored. We set a 95%-confidence-level lower limit of 27.6 GeV/c2 for the mass of a fourth-generation lepton.

Original languageEnglish
Pages (from-to)911-914
Number of pages4
JournalPhysical Review Letters
Volume61
Issue number8
DOIs
StatePublished - 1988

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