[Halla_pi0] pi0 meeting 1:30 PM
richard lindgren
ral5q at virginia.edu
Mon Jan 23 15:14:48 EST 2012
Cole,
The largest discrepancies in the energies are for HRS=16.5 deg kinematics.
G kinematics (BB=48) gs=0.168 MeV, B kinematics (BB=54) gs=0.340 MeV, J kinematics (BB=43.5) gs=0.481 MeV.
The 16.5 deg data also is the one where we have a discrepancy in the total cress section for different BigBite angles
but the same Q2. That was the one Q2 where had the largest disagreement between the different overlapping BB settings.
Maybe the energy calibration is off causing a shift in our calculated W for the run corresponding to the data point?
Richard
RUN KIN/theta g.s. 2+ 3-
3271 G/16.5 .168(.174) 4.488(.188) 9.611(.228)
3511 H/20.5 .056(.188) 4.416(.194) 9.628(.235)
3591 I/20.5 .167(.188) 4.531(.193) 9.749(.234)
3672 J/16.5 .481(.169) 4.803(.194) 9.969(.254)
3829 K/14.5 .099(.178) 4.438(.190) 9.570(.246)
4114 L/12.45 .089(.175) 4.434(.195) 9.542(.262)
4391 C/14.5 .138(.229) 4.446(.241) 9.539(.276)
4518 C/14.5 .312(.182) 4.627(.198) 9.728(.253)
4645 B/16.5 .340(.190) 4.659(.189) 9.810(.229)
4673 F/14.5 .148(.209) 4.489(.221) 9.630(.266)
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