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Opened 7 years ago

Last modified 7 years ago

#1198 new How to

Dynamic jet radius definition

Reported by: Amin Abou Ibrahim Owned by:
Priority: minor Milestone:
Component: Delphes code Version: Delphes 3
Keywords: Cc:

Description

Dear experts,

I am trying to cluster CA jets using a dynamic R parameter (R = 2m/p_T). The delphes_card (FCC) uses a constant R parameter. Is it possible to assign a dynamic R parameter through the card or should it be done via other ways?

Thank you,
Amin

Change History (2)

comment:1 by Michele Selvaggi, 7 years ago

Hi,

although very useful, what you suggest right now is not possible. Feel free to implement this in the FastJetFinder module.
There should some fastjet contrib that does this:

https://arxiv.org/pdf/0903.0392.pdf

Alternatively, you can access jet constituents in the Delphes output and recluster them with R = 2m / pT (and take the leading of such jets for instance)

comment:2 by Amin Abou Ibrahim, 7 years ago

Hi,

Thank you for the helpful suggestions.
Regarding the second approach: are you referring to a FastJet command that one may use in a macro to recluster jet constituents?

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