From: SMTP%"andy@cdfsga.fnal.gov" 3-NOV-1997 11:06:33.19 To: TOBACK CC: Subj: ee-gammagamma-met paper Message-Id: <199711031706.LAA02369@cdfsga.fnal.gov> X-Authentication-Warning: cdfsga.fnal.gov: Host localhost didn't use HELO protocol X-Mailer: exmh version 1.6.6 3/24/96 To: toback@uccdf.uchicago.edu, frisch@uccdf.uchicago.edu, reb@hep.anl.gov cc: andy@cdfsga.fnal.gov, stk@sgi6.hep.ANL.gov, yagil@fnald.fnal.gov, mdshapiro@lbl.gov Subject: ee-gammagamma-met paper Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Mon, 03 Nov 1997 11:06:36 CST From: Andy Beretvas Nov. 3, 1997 Hi Dave Tobak, Henry Frisch and Bob Blair, The ee-gammagamma-met paper is well organized! ** Thank you I have a few minor questions/comments. 1) Page 5 last paragraph for the presence of anomalous missing Et (The word anomalous is not so clear in this context, I suspect that you are just using the cut missing Et > 35 GeV. ** We use the word Anomalous to mean non-Standard model i.e, significantly different from expectations. For the met, we look for events with met>35 GeV if both photons are above 12 GeV, but 25 GeV if both photons are above 25 GeV. 2) page 6 last paragraph I think it would be better if the paper followed the order in Table I (Talk about the 3 central leptons and the tau, before the events with b-tags). ** The table has been fixed to reflect the paper. 3) Is table I saying that we have 9 events with an expected background of 3.7 +/- 0.8? ** I'm afraid not. There is overlap between the channels. The eeggmet event appears in both the central lepton and met categories. However, you are correct in pointing out that almost all of the numbers have fluctuated up. However, almost all the numbers from the 25 GeV threshold sample have fluctuated down (see CDF Note 4183) 4) I would have liked a LEGO plot for the ee-gammagamma-met event, but I suspect that there is nor room for both table II and the plot. ** We would have liked the plot also. You are correct, there simply isn't room. 5) p8 end of second paragraph 3* 10**12 n = sigma * L = 51 mb * 85 pb(-1) = 4.3 * 10**12 ** You are correct. There were roughly 4E12 collisions. However, there were multiple collisions per bunch crossing. Since we look at bunch crossings (what we usually call events) for multiple collisions, we count the number of bunch crossings to be consistent (and conservative). This is discussed in CDF Note 3892. 6) p9 end of ffirst full paragraph CL -->C.L. ** You are correct. This has been fixed in the text. 7) p9 second paragraph Could you explain C(1)? ** The C1 is the lightest chargino in the models in the references. The charginos are the Supersymmetric partners of the W and the charged Higgs. 8) p9 end of second full paragraph sentence starting Note.... you have a ( but no right ). ** I assume you mean the missing parenthesis. That is fixed in the text. 9) The end of the standard acknowledgement paragraph is missing. ** You are correct. That is fixed in the text. Best Regards Andy Beretvas