A PRECISE MEASUREMENT OF THE CROSS-SECTION OF THE INVERSE MUON DECAY NU(MU)+E(-)-]MU(-)+NU(E)
PHYSICS LETTERS B, cilt.364, sa.2, ss.121-126, 1995 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 364 Sayı: 2
- Basım Tarihi: 1995
- Doi Numarası: 10.1016/0370-2693(95)01298-6
- Dergi Adı: PHYSICS LETTERS B
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.121-126
- İstanbul Üniversitesi Adresli: Hayır
Özet
We report our final results from the analysis of the full high statistics sample of events of the reaction nu(mu) + e(-) --> mu(-) + nu(e) collected with the CHARM II detector in the CERN wide-band neutrino beam during the years 1988 to 1991. From a signal of 15 758 +/- 324 inverse muon decay events we derived, in the Born approximation, a value of (16.51 +/- 0.93) x 10(-42) cm(2) GeV-1 for the asymptotic cross section slope sigma/E(n)u, in good agreement with the Standard Model prediction of 17.23 x 10(-42) cm(2) GeV-1. The result constrains the scalar coupling of the electron and the muon to \g(LL)(S)\(2) < 0.475 at 90% CL.