[PWGDQ] Implementation of Transverse Spherocity in PWGDQ

[akavumpa]

We have implemented Transverse Spherocity in PWGDQ to analyse the J/Psi production cross-section as a function of Spherocity in the forward rapidity.

[github-actions]

O2 linter results: ❌ 0 errors, ⚠️ 1502 warnings, 🔕 0 disabled

[lucamicheletti93]

Dear @akavumpa , this PR looks very interesting but I was thinking that instread of adding this function for the spherocity calculation in the varManger, you could also think to create a service wagon and so that it is somewhat centralized and easier to manage by the analyzers. I think we can discuss this in the next days also with @axti98

[vkucera]

@akavumpa Please pay attention to what you commit. Your PR is adding a zip file.

[akavumpa]

@akavumpa Please pay attention to what you commit. Your PR is adding a zip file.

Thank you for pointing this out. The zip file that was accidentally placed has now been removed.

[lucamicheletti93]

Dear @akavumpa , before moving this draft to PR we should check a bit if there is a better way to impelment this part (DQ service wagon for instance). Did you already give a try?

[akavumpa]

Dear @akavumpa , before moving this draft to PR we should check a bit if there is a better way to impelment this part (DQ service wagon for instance). Did you already give a try?

Dear @lucamicheletti93 ,
I am currently trying to implement your suggestion of introducing a service wagon for the same. I shall update you as soon as it starts working locally.

[axti98]

Dear @akavumpa, thanks for this PR. Before you start developing in the blue I think we should briefly discuss on what is actually needed and how we should implement this. Since there are several event shape related observables (Spherocity, Sphericity, Flattenicity, ...) we could do in one central task. Based on this we can then deduce a DQ implementation.

Also, the way you propose it here, by adding the tables to the existing ones, previously skimmed data would become uselesse. Also just adding a new task might introduce problems with memory consumption.