WHIZARD

HNL model

Asked by Yegor Vasenin

Hello,
I want to study some BSM contributions in e+ e- interactions. Is there an opportunity to use any HNL model in Whizard 3.0.1, for example SeeSaw Type-I model or similar with 2 or more heavy majoran neutrinos.

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WHIZARD Edit question
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Krzysztof Mekala Edit question
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Krzysztof Mekala
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Best Krzysztof Mekala (krzysztofmekala) said : 		#1

Dear Yegor,
the best way to do so is to use an external physics model, for instance, implemented in the UFO format. You can find more information in the Whizard manual (https://whizard.hepforge.org/manual/manual018.html) and look for your favourite model online (https://feynrules.irmp.ucl.ac.be/wiki/ModelDatabaseMainPage). In your case, a simple extension of the Standard Model like [https://feynrules.irmp.ucl.ac.be/wiki/HeavyN] should work but more sophisticated models e.g. introducing left-right symmetry also exist and can be easily identified on the list.

Best regards,
Krzysztof

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Yegor Vasenin (esvasenin) said : 		#2

Thanks Krzysztof Mekala, that solved my question.