Skip to content
    Physics A-Level

    Conservation laws in particle decays

    What Conservation laws in particle decays means in Physics A-Level, as defined for AQA.

    Definition of Conservation laws in particle decays

    Check what you remember

    Read the wording for your board, then hide it and explain Conservation laws in particle decays in your own words. Rough notes are fine. This is a self-check, with no mark or grade.

    Reference: AQA

    Charge, baryon number and lepton number are each conserved, with the electron having lepton number +1 and the antineutrino having lepton number −1.
    AQA · Quarks and antiquarks (study guide)

    Topics that use Conservation laws in particle decays

    Related terms

    Using Conservation laws in particle decays in the exam

    Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.

    Practise Physics questions

    Create a free account to answer exam-style questions on this topic and get feedback on your answers.

    Start free

    A week of Premium from your first lesson · Then the free plan continues · No card, no charge

    All Physics A-Level terms