@article{1241d909de384eee903e9b9628bf948b,
title = "Search for CP violation in Z0 → τ+τ- and an upper limit on the weak dipole moment of the τ lepton",
abstract = "An improved test of script C sign℘ invariance in the reaction e+e- → on the Z0 peak is performed using the data sample recorded between 1991 and 1995 with the OPAL detector at LEP. Optimal observables, requiring the reconstruction of the τ flight direction and spin, have been used for different final state topologies. From the non-observation of script C sign℘ violation we derive 95% confidence level upper limits on the real and imaginary parts of the weak dipole moment of the τ lepton of |Re(dτ w(mZ 2))| < 5.6 × 10-18 e cm and |Im(dτ w(mZ 2))| < 1.5 × 10-17 e cm, respectively.",
author = "{OPAL Collaboration} and K. Ackerstaff and G. Alexander and J. Allison and N. Altekamp and K. Ametewee and Anderson, {K. J.} and S. Anderson and S. Arcelli and S. Asai and D. Axen and G. Azuelos and Ball, {A. H.} and E. Barberio and Barlow, {R. J.} and R. Bartoldus and Batley, {J. R.} and J. Bechtluft and C. Beeston and T. Behnke and Bell, {A. N.} and Bell, {K. W.} and G. Bella and S. Bentvelsen and P. Berlich and S. Bethke and O. Biebel and A. Biguzzi and V. Blobel and Bloodworth, {I. J.} and Bloomer, {J. E.} and M. Bobinski and P. Bock and Bosch, {H. M.} and M. Boutemeur and Bouwens, {B. T.} and S. Braibant and Brown, {R. M.} and Burckhart, {H. J.} and C. Burgard and R. B{\"u}rgin and P. Capiluppi and Carnegie, {R. K.} and Carter, {A. A.} and Carter, {J. R.} and Chang, {C. Y.} and Charlton, {D. G.} and D. Chrisman and Clarke, {P. E.L.} and I. Cohen and R. Folman",
year = "1997",
month = jan,
day = "1",
doi = "10.1007/s002880050403",
language = "English",
volume = "74",
pages = "403--412",
journal = "European Physical Journal C",
issn = "1434-6044",
publisher = "Springer New York",
number = "3",
}