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Recent results on hyperon pair production and nucleon time-like form factors at BESIII
by Alessio Mangoni
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Submission summary
| Authors (as registered SciPost users): | Alessio Mangoni |
| Submission information | |
|---|---|
| Preprint Link: | https://arxiv.org/abs/2110.12475v1 (pdf) |
| Date submitted: | 2021-10-26 10:17 |
| Submitted by: | Mangoni, Alessio |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 50th International Symposium on Multiparticle Dynamics (ISMD2021) |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
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| Approach: | Experimental |
Abstract
The BESIII experiment, based on the BEPCII collider at IHEP in Beijing, China, is capable of measuring nucleon form factors with unprecedented precision. We report recent results achieved by the BESIII collaboration concerning the nucleon time-like form factors and the hyperon pair production. More in detail we outline the results obtained by the study of the process $e^+e^- \to p \overline p$, using both the scan-energy and ISR techniques, those of the process $e^+e^- \to n \overline n$, and the study of the $\Sigma$ polarization regarding the process $e^+e^- \to J/\psi \to \Sigma^+\overline \Sigma{}^-$.
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Reports on this Submission
Anonymous Report 1 on 2022-1-29 (Invited Report)
- Cite as: Anonymous, Report on arXiv:2110.12475v1, delivered 2022-01-29, doi: 10.21468/SciPost.Report.4274
Report
These proceedings read well and give a good summary of the physics that was presented at the ISMD21 conference. I recommend them for publication. I have only minor comments (typos/grammar/clarity).
Requested changes
1. Abstract:
'More in detail' -> 'Specifically, '
Spell out 'ISR' in full in the abstract
page 2:
2. top line: 'The physics program covers...' (cover -> covers
3. parameters and search for new physics -> parameters; and searches for new physics (i.e. search to searches; I also suggest addition of a semi-colon, acting a bit like an Oxford comma (or "Oxford semi-colon" if you will), to separate it as a separate list item)
4. new sentence: '... 1989. It was...'
5. '.. and, in February 2021, the ...'
6. '.. $J/\psi$ decay ... on 1.3 billions of $J/\psi$..' -> '.. $J/\psi$ decays... on 1.3 billion $J/\psi candidates.$
7. ' ... to annihilation processes, such as..' (process -> processes, and add comma)
8. whose Feynman diagrams are ... -> the Feynman diagram of which is...
9. Below the FF equations, you define q^2 again. This is perhaps unnecessary as it is already defined above?
10. collected data -> integrated luminosity
page 3:
11. '... in panels (a) and (b), respectively:' (panel -> panels)
12. oscillating behaviour has been observed in effective.. -> oscillating behaviour is observed in the effective...
13. '.. analysis and the actual most probable ... of a resonant structures...' -> '... analyses, and the most probable ... of resonant structures..'
14. '.. collaboration, also with the initial... technique, using... 7.5 fb-1 of integrated luminosity...'
15. '... are reported in panels (a) and (b) of Figure 3...'
16. 'The obtained results for the cross section and effective FF...'
page 4:
17. '... FF, after the subtraction of a dipole function, is observed, similar to the case of a proton, as shown in Figure 4.'
18. 'The oscillating function ... has the form' (as -> has)
19. '... transition region, where the...'
page 5:
20. '.. determined by analyzing the two-body..' (add 'by')
21. 'The polarization parameters... and the relative phase betwee FFs, $\Delta\Phi$, have...' (reorder sentence)
22. New sentence: 'In particular, the value of... has been measured for the first time.'
23. 'BESIII have performed measurements of the cross section ...' (remove one 'the')
24. 'The results represent the first measurements of the cross section in the...'
25. 'The study of the ratio of the $\Sigma$ hyperon FFs could provide...'
26. 'The obtained value... GE/GM is' (add 'is')
27. '... hyperon, at an energy ... 2.3960 GeV, is signficantly...'
28. New sentence: 'Moreover, the... cross section values...' (also sections -> section)
29. '... expectations, as seen for the proton..' (note, a few changes...)
page 6:
30. '... oscillating behaviour is observed...'
31. '.. of both the proton and neutron.'
32. '... study of hyperon-pair production .... '