J. Macdonald

activity

19952016

most citedStudy of the decay K+ => pi+,nu,nubar in the momentum region 140<Ppi<199 MeV/c

333 citations · 969 across the 20 of their papers we have counts for

collaborators

Showing 2004Show all

5 papers · 1 filter

hep-ex2004★ 41 cited

Measurement of the Muon Decay Parameter delta

TWIST Collaboration, A. Gaponenko, R. Bayes +45

The muon decay parameter delta has been measured by the TWIST collaboration. We find delta = 0.74964 +- 0.00066(stat.) +- 0.00112(syst.), consistent with the Standard Model value o…

hep-ex2004★ 44 cited

Measurement of the Michel Parameter $ρ$ in Muon Decay

TWIST Collaboration, J. R. Musser

The TWIST Collaboration has measured the Michel parameter $ρ$ in normal muon decay, $μ^{+} \to e^{+} ν_{e} ν ˉ_{μ}$ . In the Standard Model, $ρ$ = 3/4. Deviations from this value require…

hep-ex2004★ 8 cited

Measurement of $K^{+} \to π^{0} π^{0} e^{+} ν$ ( $K_{e 4}^{00}$ ) decay using stopped positive kaons

S. Shimizu, K. Horie, M. Aliev +16

The $K^{+} \to π^{0} π^{0} e^{+} ν$ ( $K_{e 4}^{00}$ ) decay has been measured with stopped positive kaons for a data sample of 216 events. A comparison of the observed spectra with a Monte C…

hep-ex2004★ 20 cited

A new limit of T-violating transverse muon polarization in the $K^{+} \to π^{0} μ^{+} ν$ decay

M. Abe, M. Aliev, V. Anisimovsky +27

A search for T-violating transverse muon polarization ( $P_{T}$ ) in the $K^{+} \to π^{0} μ^{+} ν$ decay was performed using kaon decays at rest. A new improved value, $P_T= -0.0017\pm 0.…

hep-ex2004★ 142 cited

Improved Measurement of the K+ to pi+ nu nubar Branching Ratio

E949 Collaboration, A. V. Artamonov

An additional event near the upper kinematic limit for K+ to pi+ nu nubar has been observed by Experiment E949 at Brookhaven National Laboratory. Combining previously reported and…

Measurement of the Muon Decay Parameter delta

Measurement of the Michel Parameter ρ in Muon Decay

Measurement of K+→π0π0e+ν (Ke400​) decay using stopped positive kaons

A new limit of T-violating transverse muon polarization in the K+→π0μ+ν decay

Improved Measurement of the K+ to pi+ nu nubar Branching Ratio

Measurement of the Michel Parameter $ρ$ in Muon Decay

Measurement of $K^{+} \to π^{0} π^{0} e^{+} ν$ ( $K_{e 4}^{00}$ ) decay using stopped positive kaons

A new limit of T-violating transverse muon polarization in the $K^{+} \to π^{0} μ^{+} ν$ decay