Search for Second-Class Currents in tau- -> omega.pi-.nu_tau

We report an analysis of tau- decaying into omega.pi-.nu_tau with omega -> pi+pi-pi0 using a data sample containing nearly 320 million tau pairs collected with the BABAR detector at the PEP-II B-Factory. We find no evidence for second-class currents and we set an upper limit of 0.69% at 90% confi...

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Veröffentlicht in:	Physical review letters 2009-04, Vol.103
Hauptverfasser:	Aubert, B., Karyotakis, Y., Lees, J.P., Poireau, V., Prencipe, E., Prudent, X., Tisserand, V., Garra Tico, J., Grauges, E., Martinelli, M., Palano, A., Pappagallo, M., Eigen, G., Stugu, B., Sun, L., Battaglia, M., Brown, D.N., Kerth, L.T., Kolomensky, Yu. G., Lynch, G., Osipenkov, I.L., Tackmann, K., Tanabe, T., Hawkes, C.M., Soni, N., Watson, A.T., Koch, H., Schroeder, T., Asgeirsson, D.J., Fulsom, B.G., Hearty, C., Mattison, T.S., Mckenna, J.A., Barrett, M., Khan, A., Randle-Conde, A., Blinov, V.E., Bukin, A.D., Buzykaev, A.R., Druzhinin, V.P., Golubev, V.B., Onuchin, A.P., Serednyakov, S.I., Skovpen, Yu. I., Solodov, E.P., Todyshev, K. Yu, Bondioli, M., Curry, S., Eschrich, I., Kirkby, D., Lankford, A.J., Lund, P., Mandelkern, M., Martin, E.C., Stoker, D.P., Abachi, S., Buchanan, C., Atmacan, H., Gary, J.W., Liu, F., Long, O., Vitug, G.M., Yasin, Z., Zhang, L., Sharma, V., Campagnari, C., Hong, T.M., Kovalskyi, D., Mazur, M.A., Richman, J.D., Beck, T.W., Eisner, A.M., Heusch, C.A., Kroseberg, J., Lockman, W.S., Martinez, A.J., Schalk, T., Schumm, B.A., Seiden, A., Winstrom, L.O., Cheng, C.H., Doll, D.A., Echenard, B., Fang, F., Hitlin, D.G., Narsky, I., Piatenko, T., Porter, F.C., Andreassen, R., Mancinelli, G., Meadows, B.T., Mishra, K., Sokoloff, M.D., Bloom, P.C., Ford, W.T., Gaz, A., Hirschauer, J.F., Nagel, M., Nauenberg, U., Smith, J.G.
Format:	Artikel
Sprache:	eng
Schlagworte:	DETECTION Experiment-HEP,HEPEX High Energy Physics - Experiment PARTICLE DECAY Physics PHYSICS OF ELEMENTARY PARTICLES AND FIELDS PIONS MINUS PIONS NEUTRAL PIONS PLUS SECOND-CLASS CURRENTS TAU NEUTRINOS TAU PARTICLES
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Zusammenfassung:	We report an analysis of tau- decaying into omega.pi-.nu_tau with omega -> pi+pi-pi0 using a data sample containing nearly 320 million tau pairs collected with the BABAR detector at the PEP-II B-Factory. We find no evidence for second-class currents and we set an upper limit of 0.69% at 90% confidence level for the fraction of second-class currents in this decay mode.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.103.041802