Log entry time 04:13:56 on March 24, 2011

Entry number 353030

Followups:

• 353031 03/24/11 04:22 orchen the cuts used
• 353039 03/24/11 04:42 orchen HAND TOF peak with a Pmiss dirantional cut
• 353048 03/24/11 07:10 Higinbotham BigBite Events
• 353052 03/24/11 08:05 igorko & orc BB TOF peak with smaller bining

Hi,

Here is a summery of what I have so far. The latest run included in this analysis is #3014.

Protons: Total charge Q for (e,epp), after the BB delay only ==> 0.67C Number of (e,epp) candidates for 0.57C ==> ~47 Number of (e,ep) for the same charge ==> 5487

Neutrons: Total charge Q for (e,epn) ==> 1.98C number of (e,pn) candidates ==> 270 Look at this log for comparison: http://www.jlab.org/~adaq/halog/html/1103_archive/110320081814.html

Some notes: 1) This is all VERY preliminary.

2) There are no delta cuts. Therefore, the "real" number of triples is about half of what is stated here.

3) For the pp analysis I used runs 2939-3014, there we have 0.57C. Another 0.11C are in runs where we had the 20ns delay out. We can definitely use them for offline analysis.

4) The neutron numbers include charged particles - There's no veto. (Need the farm replay to add it to all files) The neutron analysis depends allot on the track assignment algorithm used. We took what ever existed and did no attempt to optimize it too much.

Thanks' Or.

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