Ciao Florencia,

my corrections are basically to syntax and spelling only.
Great job!

-----------------------

Abstract:
  - "Jets are... which requires... " maybe readability
    can be improved here.

  - "For jets with Et above 50 GeV ... achieved." ->
    "For jets with Et above 50 GeV the jet energy
    scale is determined with a 3% systematic uncertainty"
    looks more clear to me.

Author list, p.2:
  - Giusseppe -> Giuseppe
    Also, add his affiliation

Contents, p.3:
  - 2.3 Stability of the Energy Scales -> Scale

p.4:
  - 6.2 Systematic uncertainties -> Uncertainties
  - 7.2.2 Particle multiplicity -> Multiplicity
  - 9.3 ... that falls outside -> that Falls Outside

p.6
  - Line 12: Typically, a 1% uncertainty... typically results ->
    delete second "typically".
  - line 14: The original parton energy can be estimated -> parton
    transverse momentum (at least, that's what our formula has)
  - line 19: is he transverse momenta of the -> momentum
  - line 36: but apply -> but they apply ; of jet -> of the jet.

p.7
  - line 6: corrections above -> corrections described above
  - line 12: in Monte Carlo -> in the Monte Carlo
  - line 34: from simulation it -> from simulation, it

p.8
  - line 2: to a mis-measurement -> to an overestimate

p.9
  - line 20: tracks is about -> is close to

p.10
  - line 5: divided in two at -> in two halves at

p.11
  - line 16: 94-98% -> 94 to 98%
  - line 22: consistent with the mass measured at LEP taking into
    account photon radiation -> and PDF's ??? Did we ?
  - line 31: response charged -> response to charged

p.12
  - line 9: 8 GeV -> 8 GeV and above

p.13
  - is 91.1 GeV the expectation value of the Z at the Tevatron ? I
    remember 90.9 or something.
  - Caption Fig.3: Pt?20 -> Pt>20
     - inner most -> innermost

p.14
  - reference for the Snowmass Accord
  - l.25 direction being -> direction are

p.17
  - l.29 correction, i.e. the parton showering process, ->
    correction (i.e. the parton showering process),

p.18
  - l.5 simulation which -> simulation, which

p.20
  - l.16 which are -> and are

p.21
  - l.20 is available -> are available

p.26
  - l.3 response. -> response there.

p.28
  - the whole sentence starting on line 8 is repeated later, and
    is more useful there. Remove it from line 7 "Since these..."
    to line 11 "(see sec.6).".

p.29
  - l.5 further further -> further
    - tuning required -> is required
  - l.16 particles is important. -> particles is thus important for
    jet Et measurements.

p.30
  - l.5 bwtween -> between
  - l.7 phi -> $\phi$
  - l.35 electro-magnetically -> electromagnetically

p.36
  - l.4 halfs -> halves
  - l.8 this implies -> This implies

p.37
  - l.4 jets.. -> jets.
  - l.33 "taken to be as source of the systematic errors." ->
         "taken as a source of systematic error."

p.38
  - l.3 significanc -> significance

p.44
  - l.3 aims -> aim
  - l.16 separatedly -> separately

p.45
  - l.10 ten of -> ten
  - l.15/16  The jets -> Jets
  - l.19 from the twelve -> from 12

p.48
  - l.25/26 are unclear. Can rephrase ?

p.53
  - l.2 luminosities -> luminosity
  - l.5 linearly in -> linearly on
  - l.14 number of z-vertices -> number of reconstructed z-vertices
  - l.29 the formula for R is not technically correct (2-pi modularity).
    is there a more correct way of writing it out ?

p.56
  - l.5 Fig.?? -> put the reference

p.60
  - l.5 Figure ?? -> put reference
  - l.11 1.1, 135 -> 1.1, 1.35 (I guess)

p.63
  - Sec.9.3: maybe something more can be said about the origin of
    this.

p.64
  - l.4 corrections which -> corrections, which
  - l.12 Ptjet/Ptg - 1 ->  Ptjet/Ptg = 1

p.67
  - l.3 the data are generally between ->
        the data generally lay between

p.68
  - table 6:  Rjet0.7 -> Rjet = 0.7
              Rjet1.0 -> Rjet = 1.0
  - l.13 contamination at expense ->
         contamination, at the expense
  - l.20 reasonable -> reasonably
    - teh MC -> the MC

p.70
  - Figure 37: smaller caption!

p.71
  - l.4 OOC energy this -> OOC energy, this
  - l.5 In contrary to -> Contrarily to

p.72
  - l.19 Z events in data -> Z events, both in data

p.75
  - l.1 In the dijet-balancing we observe ->
        With the dijet-balancing technique we observe

p.77
  - l.5 modelling -> modeling

p.79
  - l.5 1-8, -> 1-8
  - l.6 249, -> 249
  - l.7 Kuhlmann, et al. -> Kuhlmann et al.
    - "A518:39-41, (2004)" ->
      "A518: 39-41 (2004)"
  - l.8 Apollinari, -> Apollinari
    - 526, -> 526
  - l.9 add reference
  - l.10 Ascoli, et al. -> Ascoli et al.
    - 33, -> 33
  - l.11 Acosta, -> Acosta
  - l.12 Balka, -> Balka
  - l.14 Apollinari, et al. -> Apollinari et al.
    - p.200, (1994) -> p.200 (1994)
  - l.23 546, -> 546
  - l.24 reference to CHA laser system
  - l.25 reference to plug laser system

p.80
  - l.4 646, -> 646
  - l.6 R.Field... -> Is there a better reference than a talk at a
    workshop ?
  - l.9 0306031, -> 0306031
  - l.12 W5013, -> W5013
  - l.17 Sabik in preparation -> Sabik (University of ...), in
         preparation.
  - l.22 Add reference.


Good job!

Tommaso

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Dr. Tommaso Dorigo, Padova University
E-mail: dorigo@pd.infn.it / URL http://home.fnal.gov/~dorigo/my.html
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