<div dir="ltr">here's the mass distribution that i see. <div><br><div>This is from all the files in run 5772 chained into a TChain called chain_W. The command I ran to get this histogram is:</div><div>
<p class=""><span class="">chain_W->Draw("uc_v0_candidates.mass>>mass(500, 0, .2)", "uc_v0_candidates.mass<1 && uc_v0_candidates.vtx_x>-1.5 && uc</span><span class="">_v0_candidates.vtx_x<1.5 && uc_v0_candidates.vtx_y>-1.3 &&uc_v0_candidates.vtx_y<1.3 && uc_v0_candidates.pz>.8 && uc_v0_c</span>andidates.pz<1.057");</p><p class=""><br></p></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Sep 18, 2015 at 2:28 PM, Graham, Mathew Thomas <span dir="ltr"><<a href="mailto:mgraham@slac.stanford.edu" target="_blank">mgraham@slac.stanford.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Can you post this to the group? It may because of the acceptance or there may be some fake low energy tracks...<br>
<div class="HOEnZb"><div class="h5"><br>
> On Sep 18, 2015, at 11:13 AM, Sebouh Paul <<a href="mailto:sebouh.paul@gmail.com">sebouh.paul@gmail.com</a>> wrote:<br>
><br>
> I have looked at the mass spectrum of the trident events in the engineering run and have found that it is a bimodal distribution with peaks at ~22 and ~60 MeV. Has anyone done any study as to why this is the case? Is it because of the shape of the geometric acceptance?<br>
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