STAR QA Board

[videbaek <videbaek@bnl.gov>]

Hi Ahsish

can you remind us what your selection criteria is for that vz 
distribution. I ask since the HLT (L4) vz dist looks as expected.

-F

On 2022-02-18 15:25, Ashish Pandav via STAR-QAboard-l wrote:
> Dear Ting and all,
>
> Regarding this point,
>
> > From BulkCorr & HF:
> > 1. Continue to see strange multi-peak Vz distributions; do not
> > know what the problem is. We start to see this since last week from
> > st_physics branch.
>
> For the presented QA slides, both  st_physics and st_fwd files were
> combined and analysed, not only the st_physics. But I had a quick
> check at the st_physics and st_fwd picodst files individually, and
> both of them show two peaks for the Vz distributions. For st_fwd
> picodst files, this shape is more pronounced compared to st_physics.
>
> Best,
> Ashish
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Flemming Videbaek
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