Properties
- At the final Tevatron energy of 1.96 TeV, top–antitop pairs were produced with a cross section of about 7 picobarns (pb). The Standard Model prediction (at next-to-leading order with mt = 175 GeV/c2) is 6.7–7.5 pb.
- The W bosons from top quark decays carry polarization from the parent particle, hence pose themselves as a unique probe to top polarization.
- In the Standard Model, the top quark is predicted to have a spin quantum number of 1⁄2 and electric charge +2⁄3. A first measurement of the top quark charge has been published, resulting in approximately 90% confidence limit that the top quark charge is indeed +2⁄3.
Read more about this topic: Top Quark
Famous quotes containing the word properties:
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—John Locke (1632–1704)
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—Ralph Waldo Emerson (1803–1882)