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BHT3 luminosities for feb. APS
Attached is the most recent version (4a, computed Jan21) of the luminosity table. In this version I'm using a fixed, eight-bin window for each of the two abort gaps. The equation for the single-beam background is:
SBB=(Gap1/8)*N_BlueBunches + (Gap2/8)*N_YellowBunches
where Gap1 is the sum of L2Wrandom events that fall in the eight-bin window 31<bXing<40, Gap2 is the sum across 111<bXing<120, and N_BlueBunches and N_YellowBunches are the numbers of filled bunches in each beam. Note that this approximation assumes there are no empty Yellow bunches in the blue abort gap and vice versa, which may not always be true. A missing bunch there would alter the SBB value by ~1/16. On average the SBB seems to be ~10% of the signal, so we're looking at 1/10*1/16=<1% change in the luminosity for each missing bunch.
The number of BHT3 triggers that fired is:
BHT3=(L2Wrandom-SBB)*50
where 50 is the prescale of the L2Wrandom.
The integrated luminosity for each run is:
L=BHT3/(fdet*sigma)
where fdet is the fraction of the detector that is working, and sigma=481 is the latest value of the cross section for BHT3.
The final column, "Bad?" is empty save for three runs where the abort gaps do not seem to be empty compared to the surrounding bunch crossings. Those runs are marked "Bad".
By fill, these calculations yield the following integrated luminosities:
Fill, LT (nb^-1),
10383, 56.755562
10398, 187.429474
10399, 382.472534
10402, 69.623947
10403, 58.989353
10404, 150.879822
10407, 123.953499
10412, 481.058746
10415, 341.601868
10426, 103.630058
10434, 278.005585
10439, 313.108307
10448, 328.902191
10449, 350.792633
10450, 304.248779
10454, 129.831009
10455, 314.754333
10463, 200.447586
10464, 47.926746
10465, 138.047165
10471, 340.185577
10476, 23.796785
10478, 51.555954
10482, 567.829956
10486, 561.655457
10490, 435.234619
10494, 656.281189
10505, 598.020447
10507, 299.432617
10508, 206.093536
10517, 333.355865
10525, 743.427551
10526, 378.027191
10527, 762.753479
10528, 344.040436
10531, 971.032043
10532, 721.126099
10535, 967.734009
10536, 416.277313
SumL=13740.318359 nb^-1
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