STAR HardProbes PWG

[Veronika Prozorova <v.d.prozorova AT gmail.com>]

Hello Rongrong,

Thank you very much for your comments! I have implemented them and uploaded the new version under the new entry: https://drupal.star.bnl.gov/STAR/system/files/PosterQM23_Prozorova_ver2.pdf

Regarding your question about Figure 3. This behaviour is due to the cuts we are using for the electron identification. For pT < 1.25 GeV/c we use TPC and TOF, for 1.25 < pT < 1.5 GeV/c we use TPC, TOF and BEMC, for pT >1.5 we use TPC, BEMC and TOF hybrid mode to get more statistics. More information here: https://drupal.star.bnl.gov/STAR/system/files/HFE54.4GeV_6Apr2023.pdf

As it would take a lot of space to explain this behavior I added a small note regarding the BEMC only as it catches the eye the most.

Best regards,

Veronika

пт, 25 авг. 2023 г. в 17:47, Ma, Rongrong via Star-hp-l <star-hp-l AT lists.bnl.gov>:

Hello Veronika

I was asked by the STAR management to take a look at your poster. Here are some comments for your consideration:

ABSTRACT
- Studying heavy flavor can -> Studying heavy-flavor production in heavy-ion collisions (HIC) can
- Quark-Gluon Plasma (QGP) -> Quark-Gluon Plasma (QGP) created in these collisions
- One way to study the production of heavy quarks -> One way to study heavy quarks

HEAVY-FLAVOR ELECTRONS
- semi-leptonic decays of open heavy-flavor hadrons
- It is a pT dependent fraction of electrons from both D and B hadron decays. -> Relative contributions of D and B hadron decays depend on electron p_T.
- As HFE have higher -> As semi-leptonic decays have higher
- remove "of open heavy-flavor hadrons"
- I do not think you need to introduce the concept of non-photonic electrons, which could cause confusion. I suggest to merge second and third bullets, and write Eq. (1) as: N^HFE = (N^incl * purity - N^PE/𝜀^PE)/(𝜀^total) - N^HDE
- total efficiency of identified electrons -> total efficiency of electron identification and reconstruction
- are hadron-decayed electrons: 𝜌 -> are hadron-decayed electrons from 𝜌
- e^PE sources -> N^PE sources
- remove "direct"

STAR DETECTOR
- study properties of strongly-interacting matter -> study properties of the QGP
- Particle momentum reconstruction and
- add an empty space after "dE/dx,"

PHOTONIC ELECTRONS
- are subtracted statistically from the inclusive electrons using invariant mass method -> are identified using the invariant mass method and subtracted statistically from inclusive electrons
- Figure 2, caption: PE pure sample for -> photonic electrons in
- 𝜋0 -> 𝜋^0 (0 should be the superscript)

RESULTS
- In Fig. 1, there are some distinct features: i) a bump around 1 GeV/c, ii) a sudden drop around 1.4 GeV/c, and iii) another bump around 1.6 GeV/c. Do you understand these features? Are they related to trigger bias? It will be good if you can add some explanations.
- Figure 1, caption: add a comma before "for"
- remove "In order to evaluate hadron contamination the"
- were fitted with multi-Gaussian -> are fitted with a multi-Gaussian
- (Figure 4). This is needed to -> (Figure 4), to
- Figure 4: add "Au+Au \sqrt{s_NN} = 54.4 GeV" to both panels
- TOF, BEMC -> TOF and BEMC
- calculated from data using pure photonic electron sample -> calculated using pure electron sample in data
- Figure 5, left panel: the legend indicates the systematic uncertainty is displayed as filled gray box, while I can only see open colored boxes around data points. Please make them consistent.

CONCLUSION
- Heavy-flavor electrons are a powerful -> Heavy-flavors are a powerful
- towards N^PE evaluation -> towards N^HFE evaluation
- v2 -> v_{2}
- add the reference to HFE v2 paper

REFERNECE
- Unify the reference style

Best
Rongrong


> On Aug 18, 2023, at 8:08 AM, webmaster--- via Star-hp-l <star-hp-l AT lists.bnl.gov> wrote:
>
> Dear Star-hp-l AT lists.bnl.gov members,
>
> Veronika Prozorova (v.d.prozorova AT gmail.com) has submitted a material for a 
> review, please have a look:
> https://drupal.star.bnl.gov/STAR/node/64755
>
> Deadline: 2023-09-03
> ---
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