# Does the decay of the Higgs Boson create up or down quarks?

Does the decay of the Higgs Boson create up or down quarks?

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Roughly, the probability of the Higgs boson decaying into a particular particle and its antiparticle is proportional to the mass of the particle squared, and since the up and down quarks are thousands of times less massive than, say, the bottom or charm quarks, the probability of $H\to u\bar{u}$ or $H\to d\bar{d}$ is on the order of a millionth of $H\to c\bar{c}$ or $H\to b\bar{b}$. Considering how rare it is to produce a Higgs boson in the first place, odds are that the decay $H\to u\bar{u}$ or $H\to d\bar{d}$ has happened maybe once or twice in the entire time the LHC has been running.