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nLab > Latest Changes: Dalitz decay

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  1.  
    • CommentRowNumber1.
    • CommentAuthorUrs
    • CommentTimeApr 18th 2020

    starting something – not done yet, but need to save

    v1, current

    • CommentRowNumber2.
    • CommentAuthorUrs
    • CommentTimeMay 2nd 2020
    • (edited May 2nd 2020)

    have added more actual content and details to the entry.

    In particular, I made explicit the Lagrangian densities corresponding to the Dalitz decay Feynman amplitudes:

    L rad∼dA∧dπ 0∧(L¯⋅γ μ⋅L)dx μ \mathbf{L}_{rad} \;\sim\; d A \wedge d \pi^0 \wedge (\overline{L} \!\cdot\!\gamma_\mu \!\cdot\! L) d x^\mu

    for the radiative pion Dalitz decay, and

    L sem∼dV∧dP∧(L¯⋅γ μ⋅L)dx μ \mathbf{L}_{sem} \;\sim\; d V \wedge d P \wedge (\overline{L} \!\cdot\!\gamma_\mu \!\cdot\! L) d x^\mu

    for the semileptonic Dalitz decay of a vector meson VV to a pseudoscalar PP.

    This is immediate enough, but none of the reference that I find ever bother to speak in terms of Lagrangian densities, they all just write Feynman amplitudes.

    diff, v8, current

    • CommentRowNumber3.
    • CommentAuthorUrs
    • CommentTimeSep 17th 2020

    added pointer to today’s

    • G. Ramalho, A covariant model for the decuplet to octet Dalitz decays (arXiv:2002.07280)

    diff, v10, current

1 to 3 of 3

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