First Measurement of the T - odd Correlation between the Z 0 Spin and the Three - jet Plane Orientation
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چکیده
We present the first measurement of the correlation between the Z 0 spin and the three-jet plane orientation in polarized Z 0 decays into three jets in the SLD experiment at SLAC utilizing a longitudinally polarized electron beam. The CP-even and T-odd triple product S Z · (k 1 × k 2) formed from the two fastest jet momenta, k 1 and k 2 , and the Z 0 polarization vector S Z , is sensitive to physics beyond the Standard Model. We measure the expectation value of this quantity to be consistent with zero and set 95% C.L. limits of −0.022 < β < 0.039 on the correlation between the Z 0-spin and the three-jet plane orientation.
منابع مشابه
First 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...
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