PRL notified us our draft is too long and shortening to 460 lines or less is required.
The current draft has 476 lines, which exceeds the limit for PRL (460 lines).
So we reduces lines in main text, captions in Figures and comments in Refs.

The changes are based on version 4.0 with line number in double column:

------
P1, line 37
"..gaugino pairs are produced and decay to the..."
->
"..gaugino pairs are produced and quickly decay to the..."

------
P1, line 52-59
Completely removed.

------
P1, line 62-66
"....inside a superconducting solenoid magnet that operates at 1.4 T. 
A drift chamber (COT) with 96 layters of sense wires measures the z position, 
time of the ppar interaction, and the momenta  of charged particles."
->
"....that measures the z position and time of the ppar interaction, and 
the momenta of charged particles inside a superconducting solenoid magnet."

------
P1, line 66-67
"The calorimeter consists of projective towers with electromagnetic..."
->
"The calorimeter consists of electromagnetic..."

-----
P2, line 43
Ref [15] moves to line 25, after METMODEL.

-----
P3, Figure 1
(total ET of photons, jets, and MET) is removed.

-----
P3, line 67
"..reach of ~ 160 GeV at a lifetime well below 1 ns."
->
"..reach of ~ 160 GeV."

-----
P5, Figure 3

"... the limit from ALEPH/LEP......up to 1 ns."
->
"... the limit found in [10,17]."

-----
P5, Ref[15]
"Photons with second....." is removed.

-------------------------------------------------------------------
Re: LK12305
    Search for supersymmetry with gauge-mediated breaking in diphoton
    events with missing transverse energy at CDF II
    by T. Aaltonen, J. Adelman, B. \'{A}lvarezGonz\'{a}lez, et al.

Dear Dr. Lee,

We have received your manuscript, but estimate that its length exceeds the
limit for Physical Review Letters. Details appear on the enclosed form.

We will take no further action until you provide a version that will fit
within four pages.  (This corresponds to 460 lines in print.)  Please
submit the revised manuscript in a double-spaced, single-column format.

Our "Guidelines For Estimating Length" rules may aid you in comparing
your manuscript to our length limit.  These are available at
http://prl.aps.org/info/authors.html under "Manuscript Preparation" and
"PRL Length Worksheets"

Thank you for your attention to this matter.

Yours sincerely,

Journal Services
Physical Review Letters
Email: prl@ridge.aps.org
Fax: 631-591-4141
http://prl.aps.org/

Physics - spotlighting exceptional research: http://physics.aps.org/


LENGTH CHECK DATA                                                  (New 02/07)

Manuscript No. LK12305  First Author Aaltonen

Your manuscript is too long.  Shortening to 460 lines or
less is required before editorial consideration.


Figure   Label    Width   Height   Picas   Percent   Cols   Total Lines
  1       1          38      36      19     0.50      1.0      18
  2       2          38      36      19     0.50      1.0      18
  3       3          38      32      19     0.50      1.0      16


LINE COUNTS
             Text lines   424 (Includes title, abstract, byline, pacs
                               receipt date, text, acknowledgment,
                               captions, and, references.)
              Equations   0
                 Tables   0
                Figures   52

                  TOTAL   476 (Maximum length is 460)


Author to supply:

_X_ Abstract of no more than 600 characters including spaces.

___ Original Figure(s) ____________________ with

    ___ finer and/or larger lettering to prevent its filling in when
        figure is reduced.  Minimum lettering size for the enclosed
        figures is __________.

COMMENTS:

Manuscript: None

Tables and captions: None

Figures: None

FORMS AND MEMOS:

Please see the following memos:

    http://forms.aps.org/author/lengthguide-prl.pdf
      Length Guidelines for Physical Review Letters