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Review Committee Meeting Monday 16 June 2008 08:00 Pacific / 11:00 Eastern

Minutes: Monday 16 June 2008 08:00 Pacific / 11:00 Eastern

Agenda and Contact Info

Agenda

  1. Announcements
  2. Consideration of S4 LIGO-GEO paper for approval [ PDF ]
  3. Consideration of S5 1st year SGR paper for approval
    • Version 21 of the SGR paper: [ PDF ]
  4. A.O.B.

Contact Info

InterCall telecon service:
   Phone: 1-866-380-5536, participant code: 435 672 9587 #
   International callers ++1-816-249-4731 with same code
   International access numbers (~10 cents/min surcharge for LIGO Lab):
      Paris 017 080 7156 ;
      Lyon 042 603 0036 ;
      Germany toll-free 0800 182 1591 ;
      Berlin 030 726 167 371 ;
      Rome 00645 217 080 ;
      UK toll-free 0808 234 7914 ;
      London 0203 107 0293
   Handy participant command:  Press *6 ["*M"] to mute, #6 to unmute

Minutes

  1. Announcements: LSC meeting
    • Short presentation of SGR paper at LSC meeting. One request: why PRL? Working on document.
    • Change of paper: ratio of EM/GW energy. Setting lower limits on this number. Caused confusion. Switch to 1/previous. Now upper limits.
    • No comments about LIGO-GEO paper. One suggestion about minor change to cWB pipeline.
  2. Consideration of S4 LIGO-GEO paper for approval [ PDF ]
    • Systematics: question about whether calibration would adversely affect cWB. Calibration uncertainties were not included in this paper.
    • Figure 6: want error bands so it looks like Fig. 4b.
    • This committee recommends approval of the paper for publication pending resolution of a couple minor issues: missing cWB job; a few comments by JC to be addressed; ...
  3. Consideration of S5 1st year SGR paper for approval
    • New version [ PDF ].
    • Peter Shawhan comments:
      1. Why Re(a b*) rather than |a b*|? Not symmetric under swapping detectors? Claim in paper is that this is the cross-power spectrum, but not clear that it is. Need to think about this. Kipp is convinced that this is correct.
      2. "In a matched filter search, a 200 ms RD template loses at most about 10% amplitude signal-to-noise for signals in the range 100–400 ms [36]; we expect the loss to be less than this in our excess power search". Not convinced that this search has less than 10% loss. Need to check what actual loss is.
      3. Upper limits: 3 different analyses for each analysis. Is this OK?
      4. Polarizations: Circularly + linearly polarized. WNB is unpolarized.
      5. Length: 0.5 pages too long. Possibility is to submit as it is and if it is accepted then trim it.
      6. Question about gamma = 1e5 possibility in Ioka reference. Somewhat confusing, but some models here seem to be 1e5. How confident can we extract this number? Will email author.
    • Final approval will be done by email in next couple of days.
  4. A.O.B.
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