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cms:sus-11-016 [02/10/2012 10:46] migliore |
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http://cms.cern.ch/cds/SUS-11-016 | http://cms.cern.ch/cds/SUS-11-016 | ||
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+ | Stefano A. | ||
+ | ---------- | ||
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+ | Type A: | ||
+ | |||
+ | Abstract: | ||
+ | 1. "up to 4.98 fb-1": we would suggest to write the actual range instead of "up to" (throughout the paper) | ||
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+ | 2. "range of mass parameters" : which mass ? | ||
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+ | L1-L6: the word "particle" is repeated 3 times in two lines | ||
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+ | L5: "one theoretical model ..." This is coming out of the blue, we should at least say (in one sentence) why this particular one is used in most CMS analyses. | ||
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+ | L5 : "in most CMS analyses " -> In most of the analyses performed by the CMS collaboration (or similar rephrasing) | ||
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+ | L7 : principal -> principle (or at least, this seems to be the intended meaning) or remove the word and commas. | ||
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+ | L7/9 : repetition of the word "particle" | ||
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+ | L13-14 : "For each SimplM, values of Axepsilon can be calculated to translate a number of signal events into a cross section " . This needs rephrasing, e.g. "can be calculated to measure a cross section given the number of observed signal candidates". But it is not clear at this point if it _can_ be calculated or if actually did it. | ||
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+ | L15/16: We would suggest: "an upper limit on the xs times the br ($[\sigma \times BF]_{UL}$)", then remove ($[\sigma \times BF]$) at the end of the sentence. The definition in symbols without the UL is not used in the rest of the paper if we are not mistaken. | ||
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+ | L113 : "denoted the " -> denoted as the | ||
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Nicolo` | Nicolo` | ||
Linea 66: | Linea 95: | ||
What's about "is fully defined specifying the masses and the production and decay sequence of a set of new particles" | What's about "is fully defined specifying the masses and the production and decay sequence of a set of new particles" | ||
- | L35: "built around" -> I am not a native English speaker but it sound a bit strange to me being almost CMS "contained" | + | L35: "built around" -> I am not a native English speaker but it sounds a bit strange to me being almost CMS "contained" |
within the solenoid | within the solenoid | ||
Linea 75: | Linea 104: | ||
L.165: "SUSY expressions" -> "SUSY predictions" | L.165: "SUSY expressions" -> "SUSY predictions" | ||
- | L.170: since it is used later, one should probably emphasize even more what is the "benchmark" | + | L.170: since it is used later as key-ingredient for extracting the limits, one should probably emphasize even more what is the "benchmark" |
- | => Then [sigma x BF]_UL is compared to the SUSY benchmark cross section ..." | + | => "Then [sigma x BF]_UL is compared to the SUSY benchmark cross section ..." |
L.181: "chargino mass" -> "heavier (or intermediate?) neutralino mass" | L.181: "chargino mass" -> "heavier (or intermediate?) neutralino mass" | ||
- | For clarity, should be underlined that this corresponds to x=1/2 of L.116, as in the caption of Fig.1? | + | For clarity, one should underline that this corresponds to x=1/2 of L.116, as in the caption of Fig.1. |
- | L.187: "different mass parameters" -> for clarity one should probably write explicitly "different values of the masses of the gluino and of the lightest neutralino" | + | L.187: "different mass parameters" -> again for clarity one should probably write explicitly "different values of the masses of the gluino and of the lightest neutralino" |
L.198 (and Fig.1): | L.198 (and Fig.1): | ||
- | While it is clear how efficiency*acceptance is extracted it is less clear why the figures on the right do not show the same pattern (e.g. isolines) of those on the left but with a different scale. | + | While it is clear how efficiency*acceptance is extracted it is less clear why the figures on the right do not show the same pattern (e.g. isolines) of those on the left just with a different scale (e.g. % on the left, pb on the right). |
- | More specifically: the text mentions "the predicted background". Is the number of predicted background events the same for all the points in the (m(~g),m(LSP)) plane and then the difference arises only when including it in the CLs calculation? Or is the selection of the events different in different regions of the (m(~g),m(LSP)) plane, so the number of selected events changes as well? | + | More specifically: the text mentions "the predicted background". Is the number of predicted background events the same for all the points in the (m(~g),m(LSP)) plane and the difference in the isoline patterns between left and right plots arises only when including it in the CLs calculation? |
+ | Or is the change in the isolines pattern due to the fact the points with the same value efficiency*acceptance have different uncertainties on the efficiency*acceptance itself? | ||
+ | Or, finally, is the selection of the events different in different regions of the (m(~g),m(LSP)) plane, so the number of selected events changes as well? | ||
+ | Whatever is the reason it is probably worthwhile to explain it in the text. | ||
L.214: remove "The limits are thus subject to statistical fluctuations" (as everything...) | L.214: remove "The limits are thus subject to statistical fluctuations" (as everything...) | ||
- | Fig.1 In the top header of each plot: Why m(~q)>>m(~g) and not the opposite? | + | Fig.1 caption "chargino" -> "neutralino" |
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+ | I have also two conceptual questions about these plots: | ||
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+ | 1) Does LSP coincide with N_0^1 for all the points of the plots? | ||
+ | |||
+ | 2) The fine dashed lines diagonal seem to indicate a kinematic limit, e.g. m(LSP)<m(~g), which is probably wrong for the topology analyzed as for the cascade ~g->N_0^2->N_0^1 is m(LSP)<m(~g)-m(N_0^2) | ||
+ | Also the fact that there is a constant offset between the dashed line and the edge of the "color" region is not intuitive Why do you expect a constant offset? Does this correspond to a constant m(N_0^2), specifically 200 GeV? | ||
- | caption "chargino" -> "neutralino" | ||