sPHENIX discussion of physics

[xuanlipx <xuanlipx AT rcf.rhic.bnl.gov>]

Hi Cameron and Dennis,
     Thanks for the prompt suggestions and corrections, which are really 
good points. I just follow your suggestions and updated the DNP talk 
draft below:
       
https://indico.bnl.gov/event/24884/contributions/96807/attachments/57372/99090/APS_DNP2024_XuanLi_v4.pdf

     I will emphasize that we reach > 60% of integrated luminosity for 
the 2024 p+p data taking and all sPHENIX detector are under operation 
for the 2024 Au+Au commissioning. I will definitely emphasize we also 
have 4 month of p+p data taking with MVTX+INTT for the open heavy flavor 
program.

     Further suggestions and comments are very welcome!
     Thanks.
                                        Xuan


On 2024-10-02 07:48, Perepelitsa, Dennis wrote:
> Hi all,
>
> Just to elaborate a bit more on Cameron’s good point here:
>
> > > * Maybe some people think that’s bad to only get to [65%] but
> > > its more open HF data than RHICs had recorded before, and we were
> > > originally going to record the open HF data over 5 months but we
> > > did [65%] in a little over 1 month. I think there are ways we can
> > > emphasize the success of the run and how we operated beyond our
> > > predictions.
>
> The measurement that STAR uses for their open heavy flavor baseline in
> p+p collisions is this one:
> https://journals.aps.org/prd/abstract/10.1103/PhysRevD.86.072013 -
> which uses 105M minimum-bias p+p events.
>
> By contrast, 2.9/pb streaming data corresponds to ~100B (not a typo -
> “B” vs “M”) minimum-bias p+p events. So getting to “only”
> 65% of our original goal (which, again as Cameron has mentioned, has
> happened impressively quickly), still leaves us with a
> multiple-orders-of-magnitude improvement of the current RHIC best, at
> least in this particular channel.
>
> Dennis
>
> > On Oct 2, 2024, at 7:08 AM, Cameron Thomas Dean
> > <cameron.dean AT cern.ch> wrote:
> >
> > Sorry, a correction from what I wrote:
> >
> > We reached 30% of the integrated lumi for the Upsilon program and
> > 65% for the open HF program.
> >
> > Cheers,
> > Cameron
> >
> > On 2 Oct 2024 08:38, Cameron Thomas Dean <cameron.dean AT cern.ch>
> > wrote:
> >
> > > Hi Xuan,
> > >
> > > Thanks for the updated slides. In general, I think they’re
> > > really good and will give a good overview of our HF jet program. I
> > > have a few small comments:
> > >
> > > * On slide 6, the INTT z vertex plot is very blurry for me.
> > > Maybe it’s an artifact of the upload, I’ve seen this before,
> > > but we should check that it is clear for the presentation. I would
> > > also emphasize on the plot that this is INTT-only with a label.
> > >
> > > * On slides 7 and 8, the plots are also blurry so we should just
> > > double check that the resolution is OK.
> > >
> > > * Slide 8, you have the same comment twice “Use D0 tagged jets
> > > to study charm jet kinematics”. You could remove the repeat from
> > > the second instance which may give you more space to play with or
> > > could emphasize your point stronger.
> > >
> > > * Slide 9, “Calorimeter + full tracking system is projected to
> > > reach ~30% of BUP24 luminosity” you could probably say that we
> > > did reach 30% of the luminosity for the open HF program. Maybe
> > > some people think that’s bad to only get to 30% but its more
> > > open HF data than RHICs had recorded before, and we were
> > > originally going to record the open HF data over 5 months but we
> > > did 30% in a little over 1 month. I think there are ways we can
> > > emphasize the success of the run and how we operated beyond our
> > > predictions.
> > >
> > > * Slide 10, Maybe we could rephrase “All sPHENIX detectors are
> > > under operation for the 2024 p+p physics data taking.” To
> > > something like “All sPHENIX detectors operated successfully for
> > > the 2024 p+p physics data taking.” Or “All sPHENIX detectors
> > > are under operation for the 2024 AuAu commissioning period”, or
> > > something like this?
> > >
> > > * “The heavy flavor jet tagging algorithm have been developed
> > > in the sPHENIX software and will optimized in real data.”, I
> > > think should be “The heavy flavor jet tagging algorithms have
> > > been developed in the sPHENIX software and will be optimized in
> > > real data.”
> > >
> > > Have a great time at DNP!
> > >
> > > Cheers,
> > > Cameron
> > >
> > > From: sphenix-hf-jets-l-request AT lists.bnl.gov
> > > <sphenix-hf-jets-l-request AT lists.bnl.gov> on behalf of xuanlipx
> > > <xuanlipx AT rcf.rhic.bnl.gov>
> > > Date: Wednesday, October 2, 2024 at 1:27 AM
> > > To: sphenix-hf-jets-l AT lists.bnl.gov
> > > <sphenix-hf-jets-l AT lists.bnl.gov>,
> > > Sphenix-upsilons-l AT lists.bnl.gov
> > > <Sphenix-upsilons-l AT lists.bnl.gov>
> > > Cc: sphenix-physics-l AT lists.bnl.gov
> > > <sphenix-physics-l AT lists.bnl.gov>
> > > Subject: Re: [[Sphenix-hf-jets-l] ] DNP2024 - sPHENIX HF jet talk
> > > draft
> > >
> > > Dear All,
> > > Please see the updated talk draft about the sPHENIX HF jet
> > > studies
> > > in the following:
> https://indico.bnl.gov/event/24884/contributions/96807/attachments/57372/98997/APS_DNP2024_XuanLi_v3.pdf
> > > I include the latest integrated luminosity plot for run24
> > > p+p
> > > collisions posted by Jamie.
> > > Suggestions and comments are very welcome!
> > > Thanks.
> > > Xuan
> > >
> > > On 2024-09-20 15:52, xuanlipx wrote:
> > > > Dear All,
> > > > Thanks a lot for the great suggestions for my DNP2024 talk
> > > draft
> > > > about the sPHENIX heavy flavor jet study. The talk is scheduled
> > > for
> > > > 10+2 minutes. Please see my updated talk draft below:
> https://indico.bnl.gov/event/24884/contributions/96807/attachments/57372/98643/APS_DNP2024_XuanLi_v2.pdf
> > > [1]
> > > > Further suggestions and comments are very welcome!
> > > > Thanks.
> > > > Xuan
> > >
> > > --
> > > Xuan Li
> > > A109, Bldg. 1, TA-53
> > > Physics Division, MS H846
> > > Los Alamos National Laboratory
>
> Dennis V. Perepelitsa
> Associate Professor, Physics Department
> University of Colorado Boulder
>
>
>
> Links:
> ------
> [1] 
> https://indico.bnl.gov/event/24884/contributions/96807/attachments/57372/98643/APS_DNP2024_XuanLi_v2.pdf

--
Xuan Li
A109, Bldg. 1, TA-53
Physics Division, MS H846
Los Alamos National Laboratory