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<div>Dear Proponents,</div><div><br></div><div>I still get these emails, so couldn't help but read the paper draft out of interest. Of course we knew that there is some S-wave and probably should have put in an additional systematic for this. I have some observations on the draft:</div><div><br></div><div>-- it seems somewhat weird that the previous g11a phi CLAS paper comes in at Ref 31. I agree we didn't account for the S-wave, but many other things were done, including a full angular analysis. I think this reference should be in the introduction up front.<br></div><div><br></div><div>-- there should be some discussion on comparisons of the KK system obtained here in gp->KKp, vs, other processes. The main one is Bs->JpsiKK, where LHCb has beautiful measurements. From your Table, the S-wave fraction in the 1020\pm10 MeV window is around 2%. This might be compared with the ~1% observed in Bs->JpsiKK, as in Fig19:</div><div><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__arxiv.org_abs_1302.1213&d=DwMFaQ&c=lz9TcOasaINaaC3U7FbMev2lsutwpI4--09aP8Lu18s&r=_2JFMObAds6vV9is5xBMo9X3Buw3Ueu7ItYJPFxD0-I&m=RXh60M3GZ8FT_RF1HVDeJ_7V5YMBwuKv5gHkiuJ-1VM&s=YJ6vFa0kDq0l6w1hpbZa0IdiCSXxhVaqrER3de83ddc&e=" rel="nofollow" target="_blank" class="">https://arxiv.org/abs/1302.1213</a></div><div>More interestingly, what is the relative phase between the P- and S-wave? For the Kpi system under the K*(892), there was a pi shift between LASS (pK scattering) and BaBar (B0->JpsiKpi). This tells us that the strong phase is process dependent.<br></div><div><br></div><div>-- there seems to be a discrepancy between the previous CLAS measurement and this work in Fig 6, beyond a couple % S-wave. The text says, the comparison is ``reasonable'', which is far-fetched, from looking at the figure. I note that a crucial check for the previous paper was the charged/neutral mode comparisons -- totally different acceptances. Do you have a different normalization?<br></div><div><br></div><div>Best regards,</div><div>-Biplab<br></div><div><br></div><div><br></div>
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On Thursday, June 21, 2018, 6:03:35 PM GMT+2, Marco Battaglieri <battaglieri@ge.infn.it> wrote:
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<div><div dir="ltr">Dear Dan,<br clear="none">thanks a lot for your detailed comments/edits/corrections that have been <br clear="none">incorporated in the new version of the draft posted on the review page<br clear="none"><a shape="rect" href="https://www.jlab.org/Hall-B/shifts/admin/paper_reviews/2018/twok_prd_v6-3022110-2018-06-21-v6.pdf" target="_blank">https://www.jlab.org/Hall-B/shifts/admin/paper_reviews/2018/twok_prd_v6-3022110-2018-06-21-v6.pdf</a><br clear="none">We preferred to not modify the lines/shadow-area in the figures since <br clear="none">they were already modified according the last round of comments <br clear="none">exchanged with the review committee. We'll wait for the paper (PRD) <br clear="none">requests (if any) to change the style.<br clear="none">Best regards<br clear="none">Marco (on behalf of the main authors)<br clear="none"><br clear="none"><div class="yqt6727727111" id="yqtfd58392"><br clear="none">Daniel Carman wrote:<br clear="none">> Dear Marco et al.,<br clear="none">><br clear="none">> I have read through your draft of the KK paper and include my comments below.<br clear="none">> Most of what I have provided below will serve to improve the grammar and<br clear="none">> readability of the paper. If you have any questions, let me know.<br clear="none">><br clear="none">> Regards,<br clear="none">> Daniel<br clear="none">> ---------------------------------------------------------------------------<br clear="none">> General:<br clear="none">> - Units. You are not consistent with your speed of light units in this manuscript.<br clear="none">> For ease of presentation I recommend that you choose a convention that<br clear="none">> presents masses in GeV and momentum-transfer squared in GeV$^2$ units.<br clear="none">> - You are not consistent in your invariant mass notation. I would prefer that you<br clear="none">> use "$M_{K^+K^-}$" throughout instead of "$M_{KK}$". However, there was<br clear="none">> also alternative notation used of "$M_{K\bar{K}}$".<br clear="none">> - You are not consistent with your use of hyphens in this manuscript. Better to<br clear="none">> leave them out than to use them inconsistently.<br clear="none">> - You are not consistent with your usage of "Figure" and "Fig.". I would suggest<br clear="none">> that you use "Fig." in the text. The only exception being that to start a paragraph<br clear="none">> you should use "Figure".<br clear="none">> - You use color figures, but figures 18, 19, 20 are not readable in black and white.<br clear="none">><br clear="none">> Page 1:<br clear="none">> - Title: Use "$K^+K^-$".<br clear="none">> - Abstract:<br clear="none">> - Line 4. Use "$K^+$.<br clear="none">> - Line 5. Use "$K^-$.<br clear="none">> - Line 9. Use "This is the first time ...".<br clear="none">> - Left column:<br clear="none">> - Paragraph 1:<br clear="none">> - Line 5. Use "... probes and, in particular, with ...".<br clear="none">> - Line 6. Use "The main reason for this is ...".<br clear="none">> - Line 10. Use "... high-intensity and high-quality ...".<br clear="none">> - Line 12. Use "... accumulated by the CB-ELSA ...".<br clear="none">> - Line 13. Use "... while at higher energies, ...".<br clear="none">> - Line 16. Use "... two new programs, GLUEX ...".<br clear="none">> - Line 19. Use "... spectroscopy, has tens of thousands ...".<br clear="none">> - Line 20. Use "... of events, and only a few ...".<br clear="none">> - Right column:<br clear="none">> - Paragraph 1:<br clear="none">> - Line 8. Use "Both the two pion and two kaon decay modes couple ...".<br clear="none">> - Line 10. Use "... isoscalar-scalar channel, which contains ...".<br clear="none">> - Line 13. Use "meson, which is now well established [11-13], but does ...".<br clear="none">> - Line 17. Use "These states have been the subject ...".<br clear="none">> - Paragraph 2:<br clear="none">> - Line 7. Use "... resonance that decays to two kaons ...".<br clear="none">> - Line 10. Use "... waves efficiently describes it. To describe the higher mass ...".<br clear="none">><br clear="none">> Page 2:<br clear="none">> - Left column:<br clear="none">> - Paragraph 2:<br clear="none">> - Line 5. Use "... example, the interference between ...".<br clear="none">> - Line 10. Use "... of two pion photoproduction to the ...".<br clear="none">> - Line 11. Use "... to those works for a ...".<br clear="none">> - Paragraph 3:<br clear="none">> - Line 1. Use "This paper is organized ...".<br clear="none">> - Line 3. Use "Extraction of the angular moments ...".<br clear="none">> - Line 4. Use "... two-kaon system is ...".<br clear="none">> - Line 6. Use "... Section IV, where we also ...".<br clear="none">> - Line 7. Use "... including the extracted differential cross sections for ...".<br clear="none">> - Right column:<br clear="none">> - Paragraph 2:<br clear="none">> - Line 9. Use "... charged hadron identification [25]."<br clear="none">> - Line 11. Use "This was made of 24 ...".<br clear="none">> - Line 14. Use "The average time resolution of the ST strips was $\sim$300~ps.".<br clear="none">> - Paragraph 3:<br clear="none">> - Line 1. Use "... $\sigma_p/p$, ranged from ...".<br clear="none">> - Line 4. Use "... region was about 40\%. It was somewhat ...".<br clear="none">> - Line 5. Use "... which could be lost ...".<br clear="none">> - Line 6. Use "... their paths were bent toward ...".<br clear="none">> - Paragraph 4:<br clear="none">> - Line 3. Use "... of the detected particles.".<br clear="none">> - Line 6. Use "... of the drift chamber positions, ...".<br clear="none">> - Paragraph 5:<br clear="none">> - Line 6. Use "... TOF information allowed for the identification of the kaon band ...".<br clear="none">><br clear="none">> Page 3:<br clear="none">> - Left column:<br clear="none">> - Fig. 1 caption. Describe the shaded region.<br clear="none">> - Paragraph 1:<br clear="none">> - Line 2. Use "This cuts kept the contamination ...".<br clear="none">> - Line 4. Use "($\sim$7\%)".<br clear="none">> - Line 8. Use "$K^+K^-$".<br clear="none">> - Line 13. Use "$pK^$".<br clear="none">> - Line 14. Use "$K^+K^-$"<br clear="none">> - Line 15. Use "... that does not affect the results.".<br clear="none">> - Paragraph 2:<br clear="none">> - Line 14. Use "... that required the ...".<br clear="none">> - Line 19. Use "... mass spectrum of the $pK^-$ ...".<br clear="none">> - Paragraph 3:<br clear="none">> - Line 1. Use "... dominates the $K^+K^-$ spectrum ...".<br clear="none">> - Line 3. Use "... and the $K^+K^-$ spectrum ...".<br clear="none">> - Right column:<br clear="none">> - Fig. 2 caption.<br clear="none">> - Line 1. Use "Invariant mass of the $pK^+$ system vs. invariant mass of the $K^+K^-$<br clear="none">> system.".<br clear="none">> - Line 3. Use "... around 1~GeV/c$^2$, while the $\Lambda(1520)$ ...".<br clear="none">> - Paragraph 1:<br clear="none">> - Line 2. Use "... GeV/c$^2$ was applied to avoid ...".<br clear="none">> - Line 6. Use "$K^+K^-$".<br clear="none">> - Paragraph 2:<br clear="none">> - Line 3 after Eq. (1). Use "... between the target and the recoil proton, ...".<br clear="none">> - Line 9 after Eq. (1). Use "$z$-axis".<br clear="none">><br clear="none">> Page 4:<br clear="none">> - Left column:<br clear="none">> - Paragraph 1:<br clear="none">> - Line 6. Use "... or is model dependent, it is important ...".<br clear="none">> - Paragraph 2:<br clear="none">> - Line 3. Use "... basis functions, which were ...".<br clear="none">> - Line 6. Use "... directly, while the second ...".<br clear="none">> - Line 21. Use "... stability of the results for ...".<br clear="none">> - Line 23. Use "... for the moment extractions are reported ...".<br clear="none">> - Paragraph 3:<br clear="none">> - Line 11. Spurious "GeV" at end of mass range.<br clear="none">> - Line 15. Use "... statistical fluctuations of the data.".<br clear="none">> - Right column:<br clear="none">> - Paragraph 1:<br clear="none">> - Line 4 after Eq. (2). Use "... the $a^{th}$ event (here the two kaon decay angles), ...".<br clear="none">> - Eq. (3). End equation with a period.<br clear="none">> - Line 3 after Eq. (3). Use "... events. The parameters were ...".<br clear="none">> - Eq. (4). End equation with a period.<br clear="none">> - Section III.C title. Use "Method comparisons and final results".<br clear="none">> - Paragraph 3:<br clear="none">> - Line 5. Use "$M_{KK} > 1.075$~GeV/c$^2$".<br clear="none">> - Line 7. Use "... in proximity to the ...".<br clear="none">> - Line 10. Use "... with the moment extractions.".<br clear="none">><br clear="none">> Pages 5,6:<br clear="none">> - Fig. 3, 4, 5 captions.<br clear="none">> - Line 1. Use "... angular distributions for 3.0 ...".<br clear="none">> - Line 3. Use "... (blue). The error bars include ...".<br clear="none">> <br clear="none">> Page 6:<br clear="none">> - Right column:<br clear="none">> - Paragraph 1:<br clear="none">> - Line 2. Use "The total uncertainty $\delta Y_{final}$ in the final moments ...".<br clear="none">> - Line 8. Use "... see Sec. II). Therefore, ".<br clear="none">> - Line 7 after Eq. (8). Use "... is available in the Jefferson Lab ...".<br clear="none">> - Paragraph 2:<br clear="none">> - Line 2. Use "... meson was extracted by ...".<br clear="none">> - Line 7. Use "... GeV/c$^2$ as $\langle \tilde{Y}_{00} \rangle$ is ...".<br clear="none">> - Line 8. Use "The results are shown in ...".<br clear="none">> - Line 9. Use "... binning of the various studies, ...".<br clear="none">> - Paragraph 3:<br clear="none">> - Line 5. Use "... how the partial waves ...".<br clear="none">> - Paragraph 4:<br clear="none">> - Eq. (9). End equation with a comma.<br clear="none">> - Eq. (10). On the LHS the dominator in the brackets needs spaces between the value<br clear="none">> and the units.<br clear="none">><br clear="none">> Page 7:<br clear="none">> - Left column:<br clear="none">> - Fig. 6. The black points are awfully hard to see buried under the blue points. Is there<br clear="none">> not a way to make them more prominent?<br clear="none">> - Fig. 6 caption:<br clear="none">> - Line 1. Use "... cross sections for 3.0 ...".<br clear="none">> - Line 3. Use "The cross section was calculated ...".<br clear="none">> - Line 5. Use "The uncertainties include fit parameter uncertainties added in ...".<br clear="none">> - Line 6. Use "... 10\% systematic uncertainty from ...".<br clear="none">> - Paragraph 1:<br clear="none">> - Eq. (12). End equation with a comma.<br clear="none">> - Line 1 after Eq. (12). Use "... so that the moments, defined in Eq. (1), are given by,".<br clear="none">> - Eq. (13). End equation with a comma.<br clear="none">> - Line 5 after Eq. (13). Use "... between the moments derived ... and the partial wave ...".<br clear="none">> - Line 6 after Eq. (13). Use "The fit minimized the ...".<br clear="none">> - Line 7 after Eq. (13). Use "... the left side of Eq. (13) with ...".<br clear="none">> - Line 8 after Eq. (13). Use "parametrization".<br clear="none">> - Line 9 after Eq. (13). Use "... of moments was used to determine ...".<br clear="none">> - Right column:<br clear="none">> - Paragraph 1:<br clear="none">> - Line 5. Use "... so the fitted amplitudes ...".<br clear="none">> - Line 7. "... small in the mass range, ...". The text is not clear. The mass range of what<br clear="none">> system?<br clear="none">> - Line 9. Use "... K^-$ was then characterized ...".<br clear="none">> - Line 10. Use "There were 8 amplitudes ...".<br clear="none">> - Line 11. Use "... depending on the two spin ...".<br clear="none">> - Line 13. Use "... there were 24 $P$-wave ...".<br clear="none">> - Line 15. Use "... helicity was restricted ...".<br clear="none">> - Line 21. Use "... that the dominant amplitudes ...".<br clear="none">> - Eq. (14). End equation with a comma.<br clear="none">> - Line 2 after Eq. (14). Use "... frame, we assumed ...".<br clear="none">> - Line 3 after Eq. (15). Use "We introduced two ...".<br clear="none">> - Eq. (18). End equation with a comma.<br clear="none">><br clear="none">> Page 8:<br clear="none">> - Figs. 7 through 13. The shaded bands are too faint to be clearly seen.<br clear="none">> - Figs 7 through 13 captions. I show my suggestions for Fig. 7, but the same comments<br clear="none">> apply to the captions for Figs. 8 through 13.<br clear="none">> - Use "Experiment moments $\langle Y_{LM} \rangle$ (red) for<br clear="none">> $0.6 \le \vert t \vert \le 0.7$~GeV$^2$ for $L \le 2$ and $M \le 2$ together<br clear="none">> with the moments derived from the fitted amplitudes (black), including the<br clear="none">> $L$=0 and $L$=1 amplitudes in the fit. The shaded band indicates the<br clear="none">> associated systematic uncertainty. ..."<br clear="none">> - What is the solid line drawn on the plots? It is not mentioned in the caption.<br clear="none">> - Left column:<br clear="none">> - Paragraph 1:<br clear="none">> - Line 3. Use ".... $S$-wave interference with the ...".<br clear="none">> - Line 5. Use "non-vanishing".<br clear="none">> - Line 6. Use "non-zero".<br clear="none">> - Line 13. Begin the sentence "Without polarization ..." as a new paragraph.<br clear="none">> - Line 23. Use "Details of the amplitude ...".<br clear="none">> - Right column:<br clear="none">> - Paragraph 1:<br clear="none">> - Line 4. Use "... moment determined the smearing ...".<br clear="none">> - Line 6. Use "This lead to a width ...".<br clear="none">> - Line 7. Use "... c$^2$, which is compatible ...".<br clear="none">> - Line 8. Use "We fit the moments ...".<br clear="none">> - Line 12. Use "... account the uncertainty contributions ...".<br clear="none">> - Line 14. Use "... sets of moments from methods M1 and M2 were individually ...".<br clear="none">> - Line 16. Use "... were averaged, obtaining the ...".<br clear="none">> - Line 22. 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Use "... systematic uncertainty contributions: ..."<br clear="none">><br clear="none">> Page 11:<br clear="none">> - Left column:<br clear="none">> - Table II:<br clear="none">> - Column headings: Use consistent number of significant figures for energy<br clear="none">> - Caption:<br clear="none">> - Line 2. Use "... of [33]. The results shown are integrated ...".<br clear="none">> - Line 4. Use "... c$^2$ for $E_\gamma$ ...".<br clear="none">> - Line 5. Use "... GeV$^2$ and $M_{K\bar{K}}$ in the range of ...".<br clear="none">> - Paragraph 1:<br clear="none">> - Line 2. Use "... associated with the ...".<br clear="none">> - Line 3. Use "... 10\%. The central values and uncertainties for all of the ...".<br clear="none">> - Right column:<br clear="none">> - Paragraph 1:<br clear="none">> - Line 2. Use "\gamma p \to p K^+ K^-$".<br clear="none">> - Line 5. Use "... of the partial wave amplitudes ...".<br clear="none">> - Line 12. Use "... have been parametrized using ...".<br clear="none">> - Line 14. Use "... was parametrized by Pomeron exchange, while the ...".<br clear="none">> - Line 18. Use "... of the emitted kaons.".<br clear="none">><br clear="none">> Page 12:<br clear="none">> - Left column:<br clear="none">> - Paragraph 1:<br clear="none">> - Line 3. Use "$K^+K^-$".<br clear="none">> - Paragraph 2:<br clear="none">> - Line 13. Use "Contract No.".<br clear="none">> - Right column:<br clear="none">> - Appendix A title. Use "Systematic studies of the moment extraction".<br clear="none">> - Paragraph 1:<br clear="none">> - Line 3. Use "... GeV. The moments were more stable ...".<br clear="none">> - Line 5. Use "However, the kaon-nucleon ...".<br clear="none">> - Paragraph 2:<br clear="none">> - Line 3. Use "Fig. 19 shows the fit results ...".<br clear="none">> - Line 5. Use "... so the kinematical region with ...".<br clear="none">> - Line 7. Use "Dalitz plots of the whole $pK^+K^-$ data set before ...".<br clear="none">><br clear="none">> Page 13:<br clear="none">> - Left column:<br clear="none">> - Paragraph 1:<br clear="none">> - Line 2. Use "... $\phi$ mass were not affected ...".<br clear="none">> - Paragraph 2:<br clear="none">> - Line 2. Use "... intensity was parametrized by ... and the likelihood was maximized ...".<br clear="none">> - Line 3. Use "$t$ bin".<br clear="none">> - Line 4. Use "$\lambda_{max}$ was varied ...".<br clear="none">> - Line 5. Use "The fits became unstable ...".<br clear="none">> - Line 6. Use "... parameters increased to ...".<br clear="none">> - Paragraph 3:<br clear="none">> - Line 1. Use "... fit reproduced the main features ...".<br clear="none">> - Line 3. Use "... compare the helicity angles ...".<br clear="none">> - Line 4. Use "... in Figs. 21 and 22 ...".<br clear="none">> - Line 5. 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Use "The $P$-waves were constructed ...".<br clear="none">> - Line 4. Use "... which leads to an almost purely ...".<br clear="none">> - Line 6. Use "... $K^+K^-$ effective ... is described by the relativistic ...".<br clear="none">> - Right column:<br clear="none">> - Eq. (B1). End equation with a comma.<br clear="none">> - Two lines after Eq. (B1). Use "... into partial waves,".<br clear="none">> - Eq. (B2). End equation with a comma.<br clear="none">> - Eq. (B4). End equation with a period.<br clear="none">> - Line 1 after Eq. (B4). Use "... data we multiplied each of these amplitudes by a ...".<br clear="none">> - Eq. (B5). 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Use "... mass distributions for $0.4 \le \vert t \vert \le 1.0$~GeV$^2$<br clear="none">> in the $f_0(980)$ mass ...".<br clear="none">> - Line 5. Use "... GeV/c$^2$) for the measured data (black) and the results reconstructed<br clear="none">> from the fit procedure (purple) using $\lambda_{max}=4$.".<br clear="none">> <br clear="none">> References:<br clear="none">> - Ref. [5] title. Use "$Q^2$".<br clear="none">> - Ref. [34] is out of order. It should come just before Ref. [32].<br clear="none"><br clear="none">_______________________________________________<br clear="none">Clascomment mailing list<br clear="none"><a shape="rect" ymailto="mailto:Clascomment@jlab.org" href="mailto:Clascomment@jlab.org">Clascomment@jlab.org</a><br clear="none"><a shape="rect" href="https://mailman.jlab.org/mailman/listinfo/clascomment" target="_blank">https://mailman.jlab.org/mailman/listinfo/clascomment</a></div></div></div>
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