IMPROVED LIMIT ON THE BRANCHING RATIO OF MU(-)-]E(+) CONVERSION ON TITANIUM

Authors
KAULARD J DOHMEN C HAAN H HONECKER W JUNKER D OTTER G STARLINGER M WINTZ P HOFMANN J BERTL W EGGER J KRAUSE B EGGLI S ENGFER R FINDEISEN C HERMES EA KOZLOWSKI T NIEBUHR CB RUTSCHE M PRUYS HS VANDERSCHAAF A
Citation
J. Kaulard et al., IMPROVED LIMIT ON THE BRANCHING RATIO OF MU(-)-]E(+) CONVERSION ON TITANIUM, Physics letters. Section B, 422(1-4), 1998, pp. 334-338
Citations number
14
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
422
Issue
1-4
Year of publication
1998
Pages
334 - 338
Database
ISI
SICI code
0370-2693(1998)422:1-4<334:ILOTBR>2.0.ZU;2-E
Abstract
The SINDRUM II spectrometer at PSI is used in searches for mu --> e co nversion in muonic atoms. Here we report on a search for the charge-ch anging mu(-) --> e(+) conversion on titanium. The measurements yielded the new upper limits Gamma(mu(-)Ti --> e(+)Ca(GS))/Gamma(mu(-)Ti capt ure) < 1.7 x 10(-12) (90% CL) for the ground state transition and Gamm a(mu(-)Ti --> e(+)Ca(GDR))/Gamma (mu(-)Ti capture)< 3.6 x 10(-11) (90% CL) for a giant dipole resonance excitation with both a mean energy a nd a width of 20 MeV. These results Improve on our previous best limit s by a factor tar of 2.5. (C) 1998 Elsevier Science B.V.