V.L. Highland

Search for the decay micro+-->e+ gamma.

This Letter reports a new experimental search for the family-number-nonconserving decay ..mu../sup +/ ..-->.. e/sup +/..gamma... There is no evidence for the presence of this decay mode. The upper limit for the branching ratio is GAMMA(..mu.. ..-->.. e..gamma..)/GAMMA(..mu.. ..-->.. enu anti nu) < 4.9 x 10/sup -11/ (90% C.L.). 13 refs., 3 figs.

Search for the weak decay of an H dibaryon.

We have searched for a neutral {ital H} dibaryon decaying via {ital H}{r_arrow}{Lambda}{ital n} and {ital H}{r_arrow}{Sigma}{sup 0}{ital n}. Our search has yielded two candidate events from which we set an upper limit on the {ital H} production cross section. Normalizing to the inclusive {Lambda} production cross section, we find ({ital d}{sigma}{sub {ital H}}/{ital d}{Omega})/({ital d}{sigma}{sub {Lambda}}/{ital d}{Omega}){lt}6.3{times}10{sup {minus}6} at 90{percent} C.L., for an {ital H} of mass {approx_equal}2.15 GeV/{ital c}{sup 2}. {copyright} {ital 1996 The American Physical Society.}

Candidate events in a search for anti-muon-neutrino ---> anti-electron-neutrino oscillations

A search for

Measurement of the branching ratio for the rare decay KL0--> micro+ micro-

\nuebar

New experimental limits on KL0--> microe and KL0-->ee branching ratios.

s in excess of the number expected from conventional sources has been made using the Liquid Scintillator Neutrino Detector, located 30 m from a proton beam dump at LAMPF. A

Upper limit on the four photon decay of the neutral pion

\nuebar

A progress report on recent rare muon decay experiments at the los alamos meson physics facility

signal was detected via the reaction

The Crystal Box: Rare decays of the muon

\nuebar\,p \rightarrow e^{+}\,n

Measurement of the reaction C-12 (muon-neutrino, mu-) X near threshold

with

New experimental limits onKL0→μe andKL0→ee branching ratios

e^+