User name D.J. Mack
Log entry time 15:19:10 on April 15,1998
Entry number 112
Followups:
- 114 04/16/98 09:21 D.J. Mack sources for Brauel D-/D+ plot
- 152 07/16/98 14:33 D.J. Mack updated pi-/pi+ plot
The Brauel et al data suggest there is little Q^2 dependence in the pi-/pi+ ratio. Here we see that when the Q^2 almost doubles, the ratio at a given -t bin stays the same within statistics. Closer examination suggests that the ratio may have a small Q^2 dependence, the character of which changes near -t=0.2 . Our data have much smaller statistical error bars so we should be able to address this issue. I haven't thought this thru carefully, but I wouldn't be surprised if the ratio R=D-/D+ at small -t decreased with increasing Q2 due to the pion form factor.
FIGURE 1
