Top quarks are usually produced in quark-antiquark pairs, but through the weak interaction, it is possible to create single top quarks too. This #CMSPaper measures one of the single top quark production modes, and provides important input to measure and understand quantum fluctuations inside protons, particularly of b quarks.
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@freyablekman Are they long-lived enough to (briefly) form mesons under any conditions?
Because the quantum fluctuations change as a function of the kinetic energy of the proton, it is super important to measure single top quarks at different energies, and this is why we bothered to also measure this at very low energy LHC runs https://arxiv.org/abs/2603.13592
