STAR HardProbes PWG

[Yi Yang <yiyang0429 AT gmail.com>]

HI Qian,

Thanks a lot for the updated version. I don't have any more comments on it.

Cheers,

Yi

On Fri, Oct 6, 2023 at 6:51 PM tc88qy <tc88qy AT rcf.rhic.bnl.gov> wrote:

Hello Isaac and Yi

  Thanks for your nice suggestions. Please find the new version in the
same page(v3).

Hi Isaac
  Currently, there are very limited prediction for J/psi polarization in
three frame.
My understanding is different frame are sensitive to different
production mechanism.
But theory still do not reach an agreement yet. So I suggest we do not
have a strong
augment in the abstract before we have some model prediction.

Qian Yang

On 2023-10-06 04:47, Yi Yang via Star-hp-l wrote:
> Hi Qian,
>
> Thanks a lot for the reminder. It is completely missed in my email.
> Sorry about that.
> I think Nihar and Isaac already provided all the comments, I only have
> some minor ones to add.
>   - L10: in the isobar collisions -->  in the Ru+Ru and Zr+Zr (isobar)
> collisions
>   - L17: makes --> make
>
> Cheers,
> Yi
>
> On Thu, Oct 5, 2023 at 11:10 PM Mooney, Isaac via Star-hp-l
> <star-hp-l AT lists.bnl.gov> wrote:
>
>> Hi Qian,
>>
>> Sorry for the delay — I just got back from my honeymoon. I have
>> some minor comments on your abstract below.
>>
>> Thanks,
>> Isaac
>>
>> General: I agree with Nihar that "J/psi" appears very frequently (10
>> times in the body) which gets repetitive. Some can be switched out
>> for "its", e.g. "Its strong suppression and zero second-order..."
>>
>> 2. "the STAR experiment"
>> 10. "isobar (Ru+Ru and Zr+Zr) collision system" [can also then just
>> say "isobar" on l. 22.]
>> 11. "at the STAR experiment at RHIC" or just "at the STAR
>> experiment"
>> 12.
>> Remove "Beside,"
>> The sentence starting on line 12 is vague. I think you meant the
>> next two sentences after it to flesh out what you say here. But in
>> that case, "Moreover," is confusing because it reads like you're
>> moving on to an additional point rather than filling in details on
>> the claim you just made. Otherwise, if you intend them to be
>> separate points, then the line 12 sentence doesn't add much
>> substance.
>> 20.
>> "collisions"
>> I would recommend explaining why these three frames are necessary
>> rather than just a single one, since I think you have some space.
>> 22.
>> "and Zr+Zr collisions"
>> "its" -> "their"
>>
>> On Oct 5, 2023, at 9:05 AM, tc88qy via Star-hp-l
>> <star-hp-l AT lists.bnl.gov> wrote:
>> Hello Convenors,
>>
>> It has been 10 days since I submit the abstract. Can you send out
>> your comments? So we can move forward.
>>
>> Qian Yang
>>
>> On 2023-09-28 21:22, tc88qy via Star-hp-l wrote:
>> Hello Nihar,
>> Thanks for your sign-off. It has been updated.
>> Qian Yang
>> On 2023-09-28 17:42, Nihar Sahoo wrote:
>> Hello Qian,
>> Please rephrase that sentence as,
>> L14: Moreover, it has been predicted that J/ψ spin can be aligned
>> by
>> the spin-orbit coupling of J/ψ and QGP’s large angular momentum
>> in
>> non-central heavy-ion collisions.
>> -> "Moreover, it has been predicted that J/ψ spin could align in
>> the
>> direction of large angular momentum produced in non-central
>> heavy-ion
>> collisions due to the spin-orbit coupling of J/psi. "
>> With this implemented, I sign off.
>> Best
>> Nihar
>> On 2023-09-28 11:56, tc88qy wrote:
>> Hello Nihar，
>> I do not have strong reason for that. And I corrected it in the same
>> link.
>> Please look at it .
>> Thanks,
>> Qian Yang
>> On 2023-09-28 14:19, Nihar Sahoo wrote:
>> Hello Qian,
>> Thank you for implementing some of my comments.
>> I have a follow up comment that I find you have not addressed.
>> _ J/ψ can be polarized by… -> in the spin alignment context
>> better to
>> say "J/ψ spin aligns in the direction of global angular momentum
>> due
>> to spin-orbital coupling"
>> Better avoid mixing "J/psi polarization" and "J/psi spin alignment"
>> in the text.
>  I find you keep the same "J/ψ can be polarized by the spin-orbit
> coupling " (L14).
> My suggestion was not to mix "polarized" in the context of "the
> spin-orbit coupling"; they are two physics topics and we need to make
> sure they should not be mixed in the text.
> Better to use "aligned" like spin is aligned.
> Let me know if you have a strong reason for it.
> Best
> Nihar
> On 2023-09-28 10:57, tc88qy wrote:
>
>> Hello Nihar,
>> Thanks for your carefully reading and suggestions.
>> I keep "Ru +Ru and Zr+Zr" in the title. It would be more friendly to
>> those people not from STAR experiment to know the collision system
>> directly.
>> Other than that I have implemented all your suggestions in the new
>> version (v2).
>> Thanks
>> Qian Yang
>> On 2023-09-27 14:42, Nihar Sahoo via Star-hp-l wrote:
>> Hello Qian,
>> Please find my comments on your abstract.
>> Title: You can shorten a bit.
>> "Measurements of J/ψ polarization and global spin alignment in
>> Ru+Ru
>> and Zr+Zr collisions at √sNN = 200 GeV from STAR experiment" ->
>> "Measurements of J/ψ polarization and global spin alignment in
>> isobar
>> collisions at √sNN = 200 GeV by STAR"
>> "J/psi" has been used many instances in this abstract. Please avoid.
>> L9: "…suppression of J/ψ and zero J/ψ v2 …" -> suppression of
>> J/ψ and
>> its zero second order flow coefficient ...
>> L12: "Beside J/ψ nulcear modification factor and J/ψ azimuthal
>> anisotropy observable, the J/ψ polarization…" -> "Besides, the
>> J/ψ
>> polarization could provide additional information about the QGP
>> properties and its production mechanism in heavy-ion collisions.
>> [No need to repeat again, already mentioned in previous sentence;
>> and
>> "a new degree of study" doesn't sound good]
>> L14-18: "it has been hypothesized…in early stage. -> This entire
>> sentence sounds complicated. Can you please split it?
>> Suggestion:
>> _ hypothesized -> predicted
>> _ J/ψ can be polarized by… -> in the spin alignment context
>> better to
>> say "J/ψ spin aligns in the direction of global angular momentum
>> due
>> to spin-orbital coupling"
>> Better avoid mixing "J/psi polarization" and "J/psi spin alignment"
>> in the text.
>> L22: will be present -> are reported
>> Best
>> Nihar
>> On 2023-09-27 09:01, webmaster--- via Star-hp-l wrote:
>> Dear Star-hp-l AT lists.bnl.gov members,
>> Qian Yang (tc88qy AT rcf.rhic.bnl.gov) has submitted a material for a
>> review,
>> please have a look:
>>
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