Search for Anomalousπ+Decay amongτ+Decay Secondaries

Pion-Muon Asymmetry Revisited

“…If the π -μ asymmetry results [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] are not interpreted as evidence of non-zero pion spin, then they are not in conflict with the many experiments showing that the pion has spin 0 [21,[29][30][31][34][35][36]. Furthermore, an experiment in which the asymmetry axis is modified in a controlled manner has been proposed.…”

“…The observed isotropic muon distributions in Ref. [20,21] using pions from kaon decay is puzzling since an asymmetry was observed in the similar, earlier experiments of Ref. [3,8].…”

“…Connolly and Lynch [19] studied photoproduced positive pions. The observed isotropic muon distributions in [21,22] using pions from kaon decay is puzzling since an asymmetry was observed in the similar, earlier experiments of [3,9]. Its cause may be related to the unusual asymmetry axes discovered by Osborne [6] in his kaon experiments.…”

“…In a third group of experiments [13,14,15,16,17,18,19,20,21,22,23] the distributions of muons were observed to be isotropic. In order to show that using their techniques would result in an isotropic muon distribution if the pions were not polarized, in 1965, Hulubei et.…”

“…In a third group of experiments [17][18][19][20][21][22][23][24] the distributions of muons were observed to be isotropic. In order to show that using their techniques would result in an isotropic muon distribution if the pions were not polarized, in 1965, Hulubei et al [17] performed the experiment again under radically different conditions: the pions were produced in a high magnetic field with an emission angle of 180 degrees.…”