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circe2 for FCC-ee

Asked by Yehia Abdelaziz

I am trying to generate events for ee collisions at the FCC-ee but I can't find the circe2 file for the FCC-ee.

Question information

Language:
English Edit question
Status:
Open
For:
WHIZARD Edit question
Assignee:
Thorsten Ohl Edit question
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Last reply:
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Juergen Reuter (j.r.reuter) said (last edit ): 		#1

Hi Yehia,
just a quick remark. Thorsten is working on the CIRCE2 files for FCC-ee, he will answer soon. For the moment, it might be sufficient
for you to just use Gaussian beam spread with 0.19% spread for each beam.
Cheers,
   JRR

Revision history for this message
Juergen Reuter (j.r.reuter) said : 		#2

Actually, I corrected the number to 0.19% spread. The 0.01% that I had given before was for the muon collider, which I somehow was stuck in my mind.

Revision history for this message
Yehia Abdelaziz (yehia95) said : 		#3

Thank you Juergen. I think the latest parameters can be found here:

https://github.com/HEP-FCC/FCCeePhysicsPerformance/blob/master/General/parameters_Dec2022_table.pdf

The BS is different depending on the beam energy energy. For example it is 0.221% for beam energy of 182.5 GeV.

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