Search for right-handed currents in the decay chain K++, e+

J. Imazato, Y. Kawashima, K. H. Tanaka, M. Takasaki, M. Aoki, T. Yamazaki, R. S. Hayano, M. Iwasaki, H. Outa, E. Takada, H. Tamura

研究成果: Article査読

19 被引用数 (Scopus)

抄録

Positron asymmetry in the decay of muons produced in K++ has been precisely measured in a search for right-handed currents. A novel technique utilizing a K2 muon beam from the at-rest decay of positive kaons in a primary-proton-beam target was employed. A limit of P>0.990 (90% C.L.) was obtained from the energy-integrated positron asymmetry observed in muon spin precession under a transverse magnetic field. This limit sets a new constraint on the mass of a second weak boson (MW2) as well as on the Cabibbo angle of the right-handed sector.

本文言語English
ページ(範囲)877-880
ページ数4
ジャーナルPhysical review letters
69
6
DOI
出版ステータスPublished - 1992
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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