# Difference: ARCReviewSUS15009 (14 vs. 15)

#### Revision 152016-10-09 - BrianFrancis

Line: 1 to 1

 META TOPICPARENT name="BrianFrancis"

# SUS-15-009: Search for natural GMSB in events with top quark pairs and photons (8 TeV)

Line: 194 to 194

- l 1: Supersymmetry [1–9] (SUSY) -->
Supersymmetry (SUSY) [1–9]

- l 14: Similar comment as Fig. 1: I would scratch "dominant"

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Changed.

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- l 19: We need a sentence stating that we assume one of the W's to decay into lepton and neutrino. [Otherwise it seems a bit surprising to state in l 20, that we require the presence of a lepton.]
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The analysis focuses on the semileptonic mode of the \ttbar
pair, where one of the resulting $W$ bosons decays to a lepton and
neutrino. Based on 19.7~fb$^{-1}$ of pp collisions at
$\sqrt{s}=8\TeV$, the analysis requires the presence of exactly one
isolated lepton...


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- l 25/26: either exactly one photon, or more than one photon (2+).
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either exactly one photon, or two photons.
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Changed.

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- l 42: can we check the 1% energy resolution for unconverted photons [seems too good to me to be true ...]
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Reference [32] of the next sentence reports this, as well as the 1.3% to 2.5% figures right after it.

- l 47/48: of all reconstructed particles in an event.
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of all reconstructed objects in an event. [since we don't reconstruct every particle in a jet but just the jet itself, I would use the expression 'object'.]
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Agreed.

- l 49: The first level (L1) of the ... -->
The first level of the ... [L1 does not seem to be used again]
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It is not used again, and can be removed.

- l 54: and the relevant kinematic variables, can be ...
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and the relevant kinematic variables such as pseudo-rapidity $\eta$ or the azimuthal angle $\phi$, can be ... [since eta-phi show up a few lines below (l 58), I would explicitly mention them here.]
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- l 71: ... ECAL which are ... -->
... ECAL, which are ...
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Fixed.

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- l 72: should we explicitly state the eta range for the transition region that we exclude?
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Possibly, but I have not seen it in other PASes. I suppose these ranges could change slightly with the Run II alignment, and it might mislead some reader somewhere. My inclination here is to keep it as is.

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- l 90: by at least dR > 0.5. [at least and > seems overkill; either say 'by dR > 0.5' or by at least dR = 0.5]

- l 93: by at least dR > 0.7. [Same comment as l 90]

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Edited to use "by at least a $\Delta R$ of $0.5$."

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- l 94: and SR2 contains two or more photon candidates.
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and SR2 contains two photon candidates. and remove 'No events in data are observed with three or more photon candidates.'
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Done

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- l 105: in the signal region; the presence ...
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in the signal region. However, the presence ... [not sure whether the suggestion captures the idea of the text but I would use a period and not a semicolon here]
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This sentence proved difficult, and I couldn't separate these two ideas into different sentences. I attempted to simplify it as:

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The control regions
allow for the study of the performance of the \MET simulation with the most poorly
reconstructed photon-like objects expected in the signal region, for
which the effect on the \MET resolution is expected to be much smaller
than that of the presence of a semileptonic \ttbar decay.


- l 111: other WWfinal state). -->
other WW final state).

- l 118: at least at NLO. --> at least at next-to-leading order. [NLO does not seem to be defined and used again]

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Done.

- l 132/133: derive a second scale factor to correct ...
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derive a second scale factor $SF_{e\to\gamma}$ to correct [I would explicitly state SF_e-gamma here since SF_Z(gamma) is introduced above and SF_e-gamma is used in Table 1]
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Agreed.

- l 140: applied to Z(gamma) + jets MC
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applied to the Z(gamma) + jets MC [maybe an issue for the LE]
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Changed.

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- Table 1: and for electron-to photon -->
and electron-to photon [I think 'for' from 'Scale factors for ...' also relates here]
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Fixed.

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- Fig. 2: Should we add a sentence explaining the ratio plots at the bottom of each figure?
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The caption now states "The ratio of data to the total background is included at the bottom of each figure."

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- l 168: performance of the ETmiss shape
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performance of the extrapolation of the ETmiss shape
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With it continuing as "performance of the ETmiss background shape predicition", I think "extrapolation would be redundant. This sentence also contained several other typos, which have been edited to now read as:

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With the above scale factors applied to each background, the control
regions offer a signal-free evaluation of the performance of the \MET
background shape prediction, giving an acceptance times efficiency of
less than 1\% of the signal model.


- l 180: for a background -->
for a given background

- l 180: are treated simultaneously and as completely correlated.

Line: 272 to 385

- l 181: are simulated in MC and are assigned
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are simulated in MC and assigned
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Fixed.

- Fig. 3/4:
. we should probably change the axis label of ET with the slash
through into ETmiss as used in the text
. with two or more -->
with two
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Both changed.

- Tab. 2: normalizations -->
normalization [not sure ...]
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I believe because they are two distinct values this should be pluralized.

- l 191: The GMSB signal spectrum is generated ... To interpret the data a GMSB signal spectrum is generated ... [it seems very sudden to me that we now suddenly talk about a GMSB MC being generated ...]
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Agreed.

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- Fig. 4: what's the 'durp' doing here?
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This is a very good catch. I tend to use garbage words like this to indicate where I was last working, so I can easily find my place in the document. It seems that I forgot to remove this one...I've now taken a careful look through the entire document to be sure these are gone.

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- l 198: why is M_top in italic while M_stop and _bino are in roman?
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I mistakenly did not include the \text of M_{\text{top}}. Now fixed.

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- l 200: the 95% confidence interval cross section upper limits
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the 95% confidence level (CL) cross section upper limits [we need to define CL somewhere in the text as it is used in Fig. 5 and change C.L. --> CL in Fig 6 to be consistent (or use C.L> consistently]
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I agree, all are now changed to "CL" without periods.

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- Fig. 5/6: on the axis labels we have M_Bino and M_Stop with capital B and S while in the caption and text we use M_bino and M_stop
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M_Bino and M_Stop are now capitalized in all instances.

- l 206: in top quark pair and photons events.
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in events with a top quark pair and photons.
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Changed.

- Ref [13] is now published in PRL

Line: 328 to 486
CERN-PH-EP-2015-075", SLACcitation = "%%CITATION = ARXIV:1503.07589;%%" }
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