sphenix-l AT lists.bnl.gov
Subject: sPHENIX is a new detector at RHIC.
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- From: "Huang, Jin" <jhuang AT bnl.gov>
- To: Xin Dong <xdong AT lbl.gov>
- Cc: "sphenix-l AT lists.bnl.gov" <sphenix-l AT lists.bnl.gov>
- Subject: Re: [Sphenix-l] Updated sPHENIX HF talk for HP18
- Date: Tue, 2 Oct 2018 22:06:38 +0000
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Hi, Xin
Thanks for the new sets of very useful comments! They have been incorporated in the new slides updated in the same place.
> I guess this is probably due to the binning (I see less blue data points at low pT
I think so too. Remember similar discussion in the MVTX review practice.
> suggestion probably for future (understand it is kind of late now) performance plots (eff, resolution etc), I would suggest to use LogX scales so one can have a better view of the low pT performance (pT<2GeV/c) which are crucial for B-meson and b-jet performance.
Good point.
Similarly we could also consider plot x-axis as 1/pT, which is the intrinsic scale for track curvature and the relative multiple scattering effect. 1/pT always give people a pause when reading the plot though. I do agree that Log10(pT) is much easier to read.
Cheers
Jin
______________________________
Jin HUANG
Associate Physicist Brookhaven National Laboratory Physics Department, Bldg 510 C Upton, NY 11973-5000
Office: 631-344-5898 Cell: 757-604-9946 ______________________________
From: Xin Dong <xdong AT lbl.gov>
Hi Jin,
Very nice slides. I only have a few small/cosmetic suggestions for you to consider
1) Title slide, spell out "HF", and probably be consistent with capitalizing first letters.
2) Slide 5, not sure if it is clear between "Recorded Lum.." and "Sampled Lum...", Maybe you want to use "Recorded MB dataset" for clarification.
3) Slide 6, "DCA<10um for pT>10 GeV/c", do we want to include this? We probably can reach this, but considering on the physics requirement aspect, one doesn't necessarily need so stringent DCA resolution for high momentum particles as the separation from PV would be easier due to the Lorentz boost. On the other hand, technical wise, in really the high pT resolution may suffer from limit alignment calibration precision, the long term sensor position stability etc. - it is probably write "#sigma_DCA < ...." or "#delta_DCA < ... " instead of "DCA < ...".
4) Slide 10, B-meson from 2-10 GeV/c should also offer sensitivity to differentiate energy loss mechanisms. Maybe you can just group the two physics points together, and listed below the two probes (B-mesons and b-jet) - one question here, the first blue point with pileup is actually lower than the red one. I guess this is probably due to the binning (I see less blue data points at low pT). This may be asked just in case. - one suggestion probably for future (understand it is kind of late now) performance plots (eff, resolution etc), I would suggest to use LogX scales so one can have a better view of the low pT performance (pT<2GeV/c) which are crucial for B-meson and b-jet performance.
5) Slide 11/12, not sure if you need to list it on the slides, but you may mention that we are also exploring B->J/psi (and maybe B->e high pT) channels.
6) Slide 15, "Charm chemistry and HF hadronization" may be better to use "HF baryons, chemistry and hadronization". I would prefer to emphasize the HF baryons considering the recent new interesting measurements from ALICE, LHCb and STAR.
Thanks and enjoy the conference. Best Regards
/xin
On Tue, Oct 2, 2018 at 1:49 AM Huang, Jin <jhuang AT bnl.gov> wrote:
-- =========================== |
-
[Sphenix-l] Updated sPHENIX HF talk for HP18,
Huang, Jin, 10/02/2018
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Re: [Sphenix-l] Updated sPHENIX HF talk for HP18,
Xin Dong, 10/02/2018
- Re: [Sphenix-l] Updated sPHENIX HF talk for HP18, Huang, Jin, 10/02/2018
- <Possible follow-up(s)>
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Re: [Sphenix-l] Updated sPHENIX HF talk for HP18,
Xiaochun He, 10/02/2018
- Re: [Sphenix-l] Updated sPHENIX HF talk for HP18, Huang, Jin, 10/02/2018
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Re: [Sphenix-l] Updated sPHENIX HF talk for HP18,
Xin Dong, 10/02/2018
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