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    Physics A-Level

    Conservation of baryon number

    What Conservation of baryon number means in Physics A-Level, as defined for AQA.

    Definitions of Conservation of baryon number

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    Reference: AQA

    In any particle interaction or decay, the total baryon number before must equal the total baryon number after.
    AQA · Classification of particles (study guide)
    Baryon number is conserved because the number of quarks remains three in each nucleon.
    AQA · Applications of conservation laws (study guide)

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