منابع مشابه
First symmetry tests in polarized Z0 decays to bbg.
We have made the first direct symmetry tests in the decays of polarized Z0 bosons into fully identified bbg states, collected in the SLD experiment at SLAC. We searched for evidence of parity violation at the bbg vertex by studying the asymmetries in the b-quark polar- and azimuthal-angle distributions, and for evidence of T-odd, CP-even or CP-odd, final-state interactions by measuring angular ...
متن کاملAxial Anomaly Effects in Pion and Z0 Radiative Decays
We discuss a connection between axial anomaly and polarized radiative processes. By comparison with the corresponding unpolarized cases, we consider some physical outputs for the π+ and Z0 polarized radiative decays. We analyse in detail the pattern of mass singularity cancellation. PACS 11.30.Rd, 13.20.Cz, 11.15.Bt
متن کاملPrecise measurement of the b-quark fragmentation function in Z0 boson decays
We have developed a new technique for inclusive reconstruction of the energy of B hadrons. The excellent efficiency and resolution of this technique allow us to make the most precise determination of the b-quark fragmentation function, using e(+)e(-)-->Z0 decays recorded in the SLAC Large Detector experiment. We compared our measurement with the predictions of a number of fragmentation models. ...
متن کاملFirst Measurement of the T-Odd Correlation between the Z0 Spin and the Three-Jet Plane Orientation in Polarized Z0 Decays into Three Jets.
We present the first measurement of the correlation between the ~“ spin and the event-plane orientation in polarized ~ 0 decays into three jets in the SLD experiment at SLAC utilizing a longitudinally polarized electron beam. The CP-even formed from the two fastest jet momenta, and the Z“ polarization vector S-z, is sensitive to physics beyond the Standard Model. We measure the expectation valu...
متن کاملAortic regurgitation due to syphilis: unusual case.
A 28 year old man developed signs and symptoms of left ventricular failure and was found to have gross aortic regurgitation. He underwent an aortic valve replacement, and histology showed changes characteristic of syphilis. Both the age of this patient and the mode of presentation were atypical of cardiovascular syphilis.
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1985
ISSN: 0370-2693
DOI: 10.1016/0370-2693(85)91572-2