DoPolarizationSums

[sunnyasquabla]

Hi,
I am trying to evaluate the decay rate for H to Z \gamma.
I calculated the amplitude, now I want to do the polarization sums. I want to know whether this is correct.

k1 is the momentum of photon,
k2 is of Z-boson
scalarLoop5 is the amplitude for this process.

Thanks.

[vsht]

Hi, for the photon polarization sum I'd use the formula with an auxiliary vector, you can find that in the manual of DoPolarizationSums and PolarizationSum. Apart from that, to check the correctness you need to compare your result with the literature. There's no other way. Cheers, Vladyslav Am 02.05.24 um 12:52 schrieb Sunny:

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Hi, I am trying to evaluate the decay rate for H to Z \gamma. I calculated the amplitude, now I want to do the polarization sums. I want to know whether this is correct. image.png (view on web) <https://github.com/FeynCalc/feyncalc/assets/107980747/d35c5e6d-28a4-4674-bbfd-05b132b7bd0b> k1 is the momentum of photon, k2 is of Z-boson scalarLoop5 is the amplitude for this process. Thanks. — Reply to this email directly, view it on GitHub <#267>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABXSD5DJKKSIL3W56ATVKNLZAILFNAVCNFSM6AAAAABHDPINNOVHI2DSMVQWIX3LMV43ERDJONRXK43TNFXW4OZWGU4TKNZRG4>. You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>