Use modifier phase2_etlv4 for any scenario using MTD I12 or I13

[fabiocos]

The validation of scenario D76 by @gsorrentino18 shows a dramatic drop in efficiency of ETL, incompatible with the previous validation of D73. I independently noticed that only a very small number of tracks has ETL hits associated in D76.

One possible source of the problem is the lack of https://github.com/cms-sw/cmssw/blob/master/Configuration/Eras/python/Modifier_phase2_etlV4_cff.py in the definition of the Eras used for newest scenarios, based on MTD I13, as it was done in https://github.com/cms-sw/cmssw/blob/master/Configuration/Eras/python/Era_Phase2C11_etlV4_cff.py . This should be fixed asap, @gsorrentino18 is verifying whether such a fix is enough to recover the previously observed situation.

Ideally it would be simpler to embed this in the Phase2C11 era, but this is still used also for some scenarios using MTD I11 (D64 till D71). These scenarios should not be taken seriously as far as ETL is concerned, but still if they are required to be functional an "_etlv4" version of the Eras should be provided and used.

@parbol FYI

[cmsbuild]

A new Issue was created by @fabiocos Fabio Cossutti.

@Dr15Jones, @dpiparo, @silviodonato, @smuzaffar, @makortel, @qliphy can you please review it and eventually sign/assign? Thanks.

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[fabiocos]

@srimanob @bsunanda FYI

[makortel]

assign upgrade

(not sure who else)

[cmsbuild]

New categories assigned: upgrade

@kpedro88,@srimanob you have been requested to review this Pull request/Issue and eventually sign? Thanks

[srimanob]

Thanks for the report @fabiocos @gsorrentino18
Could you please fill the ValDB, so that PdmV keeps the record of what fails, https://cms-pdmv.cern.ch/valdb/?srch=11_3_0_pre3&selected=11_3_0_pre3_phase2_D76&Reconstruction=true&RFull=true

[gsorrentino18]

The following plots (Track efficiency as a function of pT for ETL negative side) have been obtained with 150 TTbar events in the D73 (blue) and D76 (red) scenarios.
On the left, the discrepancy observed while validating the new D76 scenario.
On the right, the proper threshold, calibration constant and MeVtoMIP conversion values are used (those implemented in the missing modifier pointed by Fabio).
The lack of such modifier in the new Era appears to be the main issue.

[fabiocos]

Issue solved by #33139