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Clarify FCCeeCLD detector model #16

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andresailer opened this issue Feb 10, 2022 · 2 comments
Open

Clarify FCCeeCLD detector model #16

andresailer opened this issue Feb 10, 2022 · 2 comments

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@andresailer
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andresailer commented Feb 10, 2022

From the name of the model FCCee_o2_v02 I would assume that this is based on FCCee_o2_v01, which is the CLD detector model with the smaller 10 mm beampipe, and the corresponding smaller vertex detector
cf. https://github.com/iLCSoft/lcgeo/blob/4a5b6bb293ce5526ed23d14a3b5157a31326caf8/FCCee/compact/FCCee_o2_v01/FCCee_o2_v01.xml#L284

But looking at the vertex detector used in FCC_o2_v02 I see:

<constant name="VertexBarrel_r1" value="1.75*cm"/>
<constant name="VertexBarrel_r2" value="3.7*cm"/>
<constant name="VertexBarrel_r3" value="5.7*cm"/>

Instead of
https://github.com/iLCSoft/lcgeo/blob/4a5b6bb293ce5526ed23d14a3b5157a31326caf8/FCCee/compact/FCCee_o2_v01/Vertex_o4_v05_smallBP.xml#L41-L43

	<constant name="VertexBarrel_r1" value="1.25*cm"/> 
        <constant name="VertexBarrel_r2" value="3.5*cm"/>
        <constant name="VertexBarrel_r3" value="5.7*cm"/>
@vvolkl
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vvolkl commented Feb 10, 2022

@EmanuelPerez can you confirm? From what I remember:

The starting point was FCCee_o1_v04. The other files are obsolete or were used
for tests I think, except o2_v01, which has a smaller beam-pipe (backgrounds are still
to be studied in detail with this model, to check that such a small beam-pipe is acceptable
or not).

So this might be better off with the name FCCee_01_v05?

@EmanuelPerez
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EmanuelPerez commented Feb 10, 2022 via email

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