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<div class="">Can you describe what is being knocked out? Is this just a fiducial cut to avoid edges or are people doing run-by-run cuts for dead blocks?</div>
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<div class="">Our analysis library delivers candidates for photons and charged tracks. These type of standard cuts should be incorporated there. </div>
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<div class="">Regarding REST, the shower centroid is stored in x-y which maps to block ID. I don't know what you mean by "central crystal ID" -- central in what respect? </div>
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<div class="">Matt</div>
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<div class="">On Jul 6, 2018, at 1:43 PM, Curtis Meyer <<a href="mailto:cmeyer@cmu.edu" class="">cmeyer@cmu.edu</a>> wrote:</div>
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Hi Everyone -
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<div class=""> I have run across several analyses now where people have not been doing “FCAL knockouts”, and have also heard of at least two
<b class="">approximations</b> that people use to do this. One does radial cuts on the shower position, and the other uses angular cuts on the shower.</div>
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<div class=""> It seems to me that it would not be to difficult to store the central crystal ID of each shower in the REST file, and then have the </div>
<div class="">knock-outs done by crystal ID <b class="">as part of the analysis launch</b>. I suspect that we are too late to get this in for the upcoming launch, but</div>
<div class="">it seems like something that we should all be doing, and all doing the same way.</div>
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<div class="">Curtis</div>
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Curtis A. Meyer<span class="Apple-tab-span" style="white-space: pre;"> </span>MCS Associate Dean for Research<br class="">
Phone: (412) 268-2745<span class="Apple-tab-span" style="white-space: pre;"> </span>
Professor of Physics<br class="">
Cell: (412) 260-6290<span class="Apple-tab-span" style="white-space: pre;">
</span>Carnegie Mellon University<br class="">
Fax: (412) 681-0648<span class="Apple-tab-span" style="white-space: pre;">
</span>Pittsburgh, PA 15213<br class="">
<a href="mailto:cmeyer@cmu.edu" class="">cmeyer@cmu.edu</a><span class="Apple-tab-span" style="white-space: pre;">
</span><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.curtismeyer.com_&d=DwMGaQ&c=lz9TcOasaINaaC3U7FbMev2lsutwpI4--09aP8Lu18s&r=tkzhhpt64rRw6UYYOiZUvX2EnoOb8Z04QVfRqLSRE8Q&m=JgmV86Wl1oLBfyWQvs0Ejc8nG7YfNfBDuJCtPhDOMLY&s=KLfDQrrxpJvVtde9-f2C2JTUj9jFNqB8HW0cEakwoyA&e=" class="">http://www.curtismeyer.com/</a></div>
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