[Clascomment] OPT-IN: Upper limits for the photoproduction cross section for the Phi--(1860) pentaquark state off the deuteron

[Hovanes Egiyan]

Dear Luciano,

thanks for reading the draft and giving us your feedback.
We went through the list and implemented  some of your comments.
Sometimes comments from different member of the collaboration and 
committees
contradict each other,  so we took upon ourselves to decide  which 
version to keep.

Hovanes.


On 08/18/2011 04:59 AM, Luciano Pappalardo wrote:
> Thanks for this nice and well written paper.
> I have only minor comments:
>
>
> ************
> INTRODUCTION
> ************
> line 51:  "This experiment was mounted at Jefferson Lab to search"
>            ->  "This experiment, performed at Jefferson Lab, was aimed to search"
>
> line 52: put "for the first time" within commas
>
> lines 56-58: rephrase: "that photoproduction processes were a rich source
>                          of pentaquarks. Furthermore, the production of the
>                          PHI^-- off the neutron was predicted to be an order
>                          of magnitude..."
>
> line 63: "for the neutron and proton"
>           ->  "for the neutrin and proton target, respectively."
>
> line 70: "In addition, the bias is that the states"
>           ->  "In addition, these states"
>
>
> **********
> EXPERIMENT
> **********
> line 4: "photoproduction experiment" ->  "photoproduction reaction"
>           ("experiment" already used in line 1)
>
>
>
> *********
> APPARATUS
> *********
> lines 5-6: skip "the electromagnetic radiation of"
>
> line 35: "allows us to reliably separate protons"
>            ->  "allows a reliable separation of protons"
>
>
> ********
> ANALYSIS
> ********
> ***************
> Event selection
> ***************
> line 55-56: "We apply THE 1.3175... cut, illustrated by the shaded area, to select"
>
> *******************
> Detector simulation
> *******************
> line 3: "using the Monte-Carlo method" ->  "using Monte-Carlo simulations"
>
> line 16: "mumber of simulated events in each given kinematic bin"
>           ->  "number of events generated in each kinematic bin"
>
> lines 18-19: "with an events configuration in the first row in Table III without"
>               ->  "with the events configuration given in the first row in Table III
>                  AND without"
>
> Caption of TABLE III: the second column is not described.
>
> *****************
> Model dependence
> *****************
> lines 1-2: rephrase: "do not know the kinematic dependence of the cross section
>                        for the Phi^-- photoproduction, and since ..."
>
> lines 26-27: "t" not defined and "parameter b" not explained
>
> line 45: "pion combinatorics" ->  "pion combinatorial background"
>
> ************************************
> Trigger conditions and normalization
> ************************************
> line 14: "signaling" ->  "indicating" ("signal" already used in line 13)
>
> line 22: "decaying INTO a proton and a pion"
>
> line 50-51: "assigned A normalization uncertainty"
>
> ************************
> Systematic uncertainties
> ************************
> lines 3-4 "the qualitative change" ->  "a significant change"
>
> lines 18-22: skip the whole sentence "We assign ... previous section."
>
>
>
> ************
> UPPER LIMITS
> ************
> line 7: "detector simulation" ->  "Monte-Carlo simulations"
>
> lines 20-24: the whole sentence "This procedure ... sideband-subtracted method"
>               is unclear. Try to explain better.
>
>
> *******
> SUMMARY
> *******
> lines 5-6: "near invariant mass M=1.862 GeV"
>             ->  "in the expected region (near invariant mass M=1.862 GeV)"
>