<div dir="ltr">Dear Silvia, all<div><br></div><div>Can you be a bit more quantitative about the change in Q2 cut for DVCS wagon? What is the DVCS output fraction and what will it be after you change the cut?</div><div>In my experience the DVCS wagon output is quite small and it will not change much if you include events slightly below Q2=1</div><div>For instance the slow control events currently make quite a significant fraction of the exclusive wagon output, and no cut will change that part</div><div><br></div><div>You should be careful if you will use Q2=1 as your standard publication cut, keep in mind that the wagon do not have any kinematic correction, and kinematic corrections can move events from below to above the Q2=1 </div><div>This is the main reason I originally chose to lower these DIS cut in the exclusive wagons</div><div><br></div><div>Best regards</div><div>FX</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Nov 13, 2020 at 2:03 PM <<a href="mailto:silvia@jlab.org">silvia@jlab.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Dear all,<br>
one of the two recommendation of the RG-B Fall review is to reduce<br>
considerably the size of our trains. Due to the much higher rates at low<br>
Q2 of the outbending Fall data, compared to the Spring ones, our inclusive<br>
train is too big. Our trains are in total 60% of the size of the cooked<br>
run, and the inclusive train makes up for 75% of this. The committee<br>
recommends to scale down the skims size to no more than 20% of the cooked<br>
files.<br>
We are therefore planning to remove this train. If people really need<br>
this, please let us know, and we can discuss and find out if it is<br>
possible to find some additional cuts to include in order to make it<br>
bearable.<br>
We are also planning to add a Q2>1 cut to the DVCS train to reduce its size.<br>
Please get in touch as soon as possible if you have objections or comments<br>
on this plan. I'd like to send a reply to the committee by this evening<br>
(EU time).<br>
Thanks a lot and best regards,<br>
Silvia<br>
<br>
<br>
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