[WIP] Adjusting Beamspot constrain

[kjvbrt]

BEGINRELEASENOTES

• Adjusting Beamspot constrain to (0.0098 2.54e-5 0.646)

ENDRELEASENOTES

The adjustment done following the discussion in #61 (comment)

[Zehvogel]

Thx! Can you also link where these numbers are from for documentation purposes? :)

[andresailer]

Hi @kjvbrt
Thanks! Can you also say for which beam-energy this is and maybe provide a reference?

[andresailer]

CLDConfig/CLDConfig/CLDReconstruction.xml

Lines 1323 to 1325 in cb1fb09

	<parameter name="BeamSizeX" type="float" value="38.2E-3"/> <!-- FCCee beam sizes at the sqrt(s) = 182.5 GeV [as of FCC Week 2018] -->
	<parameter name="BeamSizeY" type="float" value="68E-6"/>
	<parameter name="BeamSizeZ" type="float" value="1.97"/>

[saracreates]

The values are for 240GeV, as recorded in the dec 2022 parameters here, see vertex $\sigma$ values: https://github.com/HEP-FCC/FCCeePhysicsPerformance/blob/master/General/README.md#vertex-distribution

[kjvbrt]

CLDConfig/CLDConfig/CLDReconstruction.xml

Lines 1323 to 1325 in cb1fb09

	<parameter name="BeamSizeX" type="float" value="38.2E-3"/> <!-- FCCee beam sizes at the sqrt(s) = 182.5 GeV [as of FCC Week 2018] -->
	<parameter name="BeamSizeY" type="float" value="68E-6"/>
	<parameter name="BeamSizeZ" type="float" value="1.97"/>

Thanks @andresailer, adjusting all occurrences.

[andresailer]

CLDConfig/CLDConfig/CLDReconstruction.xml

Lines 1323 to 1325 in cb1fb09

	<parameter name="BeamSizeX" type="float" value="38.2E-3"/> <!-- FCCee beam sizes at the sqrt(s) = 182.5 GeV [as of FCC Week 2018] -->
	<parameter name="BeamSizeY" type="float" value="68E-6"/>
	<parameter name="BeamSizeZ" type="float" value="1.97"/>

Thanks @andresailer, adjusting all occurrences.

Sorry, don't bother with the old file, I just posted this for where the old numbers came from.

[kjvbrt]

CLDConfig/CLDConfig/CLDReconstruction.xml

Lines 1323 to 1325 in cb1fb09

	<parameter name="BeamSizeX" type="float" value="38.2E-3"/> <!-- FCCee beam sizes at the sqrt(s) = 182.5 GeV [as of FCC Week 2018] -->
	<parameter name="BeamSizeY" type="float" value="68E-6"/>
	<parameter name="BeamSizeZ" type="float" value="1.97"/>

Thanks @andresailer, adjusting all occurrences.

Sorry, don't bother with the old file, I just posted this for where the old numbers came from.

Ahh, OK. Do you want to the old config to be preserved or I can leave it as it is now?

[andresailer]

#63 let's one switch between the different cms energies, so we don't have to do this exercise again, until the beam parameters are changing.

[kjvbrt]

Good idea. Closing...