Log entry time 16:34:16 on March 29, 2014

Entry number 387998

Followups:

• 387999 03/29/14 16:35 Longwu Fitting for e/p peak of prl calibration
• 388000 03/29/14 16:48 Longwu Some more plots on prl calibration

The cut I used are:
1 one cluster reconstructed in vdc:
L.vdc.u1.nclust==1&&L.vdc.v1.nclust==1&&L.vdc.u2.nclust==1&&L.vdc.v2.nclust==1
2 L.cer.asum_p>700
3 One track reconstructed: L.tr.n==1
4 L.prl1.mult>0&&L.prl2.mult>0

The variable I plotted is (L.prl1.e+L.prl2.e)/(p0*(1+L.gold.dp)), and
p0=3GeV for run 1254. E/p is peaked aboved 1 and the sigma of the peak is
about 11%.

Figure 1

Figure 2