STAR HardProbes PWG

[Barbara Trzeciak <barbara.trzeciak AT gmail.com>]

Hi Qian,

that's also fine. My only worry is that you will have large uncertainty for the pT different rho00 in this bin. But you can check.

Cheers,

Barbara 

On Wed, 20 Sept 2023, 05:39 tc88qy, <tc88qy AT rcf.rhic.bnl.gov> wrote:

Hi Barbara,
    I see your point. I agree to include 0-5% centrality to the first
bin.
If we do 20-40% and 40-80% centrality, the last bin do gain precisions.
But we probably need to think about the physics information we want to
look at. In our case, it is the charm and anti-charm correlation that
affecting by QGP. In most the Au+Au analysis, STAR paper then talk about
QGP in a centrality of 0-60%, just like the phi spin alignment paper are
carry out at 20-60%.
   So, I suggest we do the binning of 0-20% , 20-60% and 60-80%.
What do you think?

Qian Yang

On 2023-09-19 23:39, Barbara Trzeciak wrote:
> Hi Qian,
>
> thanks for point to the slides with additional checks.
> Regarding 0-5% centrality bin:
> As ShinIch also commented, sometimes the most central bin is remove
> due to poor event plane resolution. However, in this case I don't see
> the resolution being particularly bad, it's not so much worse than for
> the mid-central case. If we have enough confidence to have this point
> in the centrality differential plot, I don't see a reason why not to
> include it when you integrate to wider centrality ranges.
> Regarding the other binning:
> The reason for having 20-40% and 40-80% is that the precision of the
> mid-central point is almost the same while the peripheral bin gains in
> precision compare to the 50-80% centrality range.
>
> Cheers,
> Barbara
>
> On Tue, 19 Sept 2023, 17:21 tc88qy, <tc88qy AT rcf.rhic.bnl.gov> wrote:
>
>> Hi Barbara,
>>
>> I replied to the HP list for the comments I got from last HP
>> meeting.
>> Please find the details in this link:
>>
> https://drupal.star.bnl.gov/STAR/system/files/jpsiSpinAlignment_20230917.pdf
>> In terms of the binning, I am not sure the reason of 20-40% bin.
>>
>> Qian Yang
>>
>> On 2023-09-19 22:15, Barbara Trzeciak wrote:
>>> Hi Qian,
>>>
>>> I see that you consider three centrality classes on plots on
>> slides
>>> 14-16 - same as you presented last week.
>>> As we discussed in more detail at the previous HP meeting, it
>> looks a
>>> bit weird (and I don't know what's the motivation in this case)
>> that
>>> you exclude 0-5% centrality bin.
>>> I suggest having the first bin as 0-20% centrality, then 20-40%
>> and
>>> 40-80%.
>>> Also, could you please prepare a comparison to the results that
>> use
>>> the first order event plane.
>>>
>>> Cheers,
>>> Barbara
>>>
>>> On Mon, Sep 18, 2023 at 10:36 AM tc88qy via Star-hp-l
>>> <star-hp-l AT lists.bnl.gov> wrote:
>>>
>>>> Hello all,
>>>> Please find my preliminary plots request in link below:
>>>>
>>>
>>
> https://drupal.star.bnl.gov/STAR/system/files/Preliminary_figures_request_1.pdf
>>>>
>>>> Qian Yang
>>>> _______________________________________________
>>>> Star-hp-l mailing list
>>>> Star-hp-l AT lists.bnl.gov
>>>> https://lists.bnl.gov/mailman/listinfo/star-hp-l