학술논문
New Bounds from Searching for Muonium to Antimuonium Conversion
Document Type
Working Paper
Author
Willmann, L.; Schmidt, P. V.; Wirtz, H. P.; Abela, R.; Baranov, V.; Bagaturia, J.; Bertl, W.; Engfer, R.; Grossmann, A.; Hughes, V. W.; Jungmann, K.; Karpuchin, V.; Kisel, I.; Korenchenko, A.; Korenchenko, S.; Kravchuk, N.; Kuchinsky, N.; Leuschner, A.; Meyer, V.; Merkel, J.; Moiseenko, A.; Mzavia, D.; Putlitz, G. zu; Reichart, W.; Reinhard, I.; Renker, D.; Sakhelashvilli, T.; Tr"ager, K.; Walter, H. K.
Source
Phys.Rev.Lett.82:49-52,1999
Subject
Language
Abstract
A new upper limit for the probability of spontaneous muonium to antimuonium conversion was established at ${\rm P_{M\bar{M}}} \leq 8.2 \cdot 10^{-11}$ (90%C.L.) in 0.1~T magnetic field, which implies consequences for speculative extensions to the standard model. Coupling parameters in R-parity violating supersymmetry and the mass of a flavour diagonal bileptonic gauge boson can be significantly restricted. A Z$_8$ model with radiative mass generation through heavy lepton seed and the minimal version of 331-GUT models are ruled out.