target density from dst question

From: Timothy Paul Smith (timothy.p.smith@Dartmouth.EDU)
Date: Fri Mar 17 2006 - 11:18:21 EST

Hello People,

I am trying to address Kevin's question about extracting
cross section from our data. I would also like to use this
to check my own analysis and event selection.

I can (roughly) calculate everything for a cross section
expect target density. If I dump the dstheader
(dstheader->Print()), I get the dump which is below. I
expect that target density is related to the number
" fFlow = 58.676"

does anyone know? What is the relationship?

Thanks - Tim

Run : 12144
Go at time: 28-Oct-2004 00:42:04
End at time: 28-Oct-2004 01:38:18
Fills : 5
Reconstructed events : 161540
Triggers : 492982
fEpicsChargep : 240.723
fEpicsChargem : 221.015
Gas Type : H
Target Type : ABS
fBlast_Pol = 1
fTargType = 1, fTargGas = 1
fTargDef = 1, fFlipper = 1
flivetime = 0.725119, fSpinAngle = 1.5708
fFlow = 58.676, fLigit = 9.07774e-08, fCellT = 104.277
f6Pol = 1.0747e-07, fCtube = 5.77843e-08, fDtube = 9.94402
fBQMT = 93649, fBQML = 28357, fBQMB = 58845, fBQMR = 29162
Charge (C):
  total charge at helicity + :178.323/239.542
  total charge at helicity - :160.852/220.474
        charge at +11 = 103.556/144.496
        charge at -11 = 41.2954/66.0816
        charge at +33 = 74.3923/89.3034
        charge at -33 = 119.213/149.62
Trig Rates (count/C):
 1 125/207/233/1736
 2 196/580/789/14999
 3 5/29/31/1459
 4 0/7/8/4851
 5 10/39/44/321
 6 1/3/3/11064
 7 136/271/330/-32768
 8 0/0/11/12 

-- 

_____________________________________________________________
Timothy Paul Smith                Assistant Research Professor
Dartmouth College, Physics                       (603)646-9346
6127 Wilder, Hanover, NH 03755   timothy.p.smith@dartmouth.edu
http://he3.dartmouth.edu/TimSmith

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