<div dir="ltr">In case you want to check out the Particle Physics Playground, have a look at <a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__particle-2Dphysics-2Dplayground.github.io_&d=DwMFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=Te_hCR4EUlJ6iCDYLJ8Viv2aDOR7D9ZZMoBAvf2H0M4&m=SSMxougKUsiQ5AP7Xb65Zbk_s4eei2Dl8Uygn8v3enc&s=Bm0g9dDQlRwgkUBuB8Cdy3NGru0VYjSIomMbUrVbrLg&e=">https://particle-physics-playground.github.io/</a><div>-Richard Jones</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Feb 15, 2021 at 3:34 PM David Lawrence <<a href="mailto:davidl@jlab.org">davidl@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">

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<span style="color:rgb(156,101,0)"></span>*Message sent from a system outside of UConn.*</div>
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<div>Hi Richard,
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<div>  I think this a good idea and probably overdue. HDDM was always a package that kind of screamed to be</div>
<div>a stand-alone product that could be used anywhere.</div>
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<div>  Is the PPP publicly available? If so, would you mind sharing the URL?</div>
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Regards,<br>
-David<br>
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David Lawrence Ph.D.</div>
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Staff Scientist - - EPSCI Group Lead<br>
Thomas Jefferson National Accelerator Facility<br>
Newport News, VA<br>
<a href="mailto:davidl@jlab.org" target="_blank">davidl@jlab.org</a><br>
(757) 269-5567 W<br>
(757) 746-6697 C<br>
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<div>On Feb 15, 2021, at 3:24 PM, Richard Jones <<a href="mailto:richard.t.jones@uconn.edu" target="_blank">richard.t.jones@uconn.edu</a>> wrote:</div>
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<div dir="ltr">Hello,
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<div>As a user of GlueX software, you are probably familiar with the HDDM file format that is used for our GlueX simulation and REST data, and have used the HDDM tools at some level. I have just finished collecting all of the bits of documentation
 on HDDM into a single comprehensive User's Guide, which is published on our portal as GlueX-doc-4917. </div>
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</div>
<div>I have also broken out all of the HDDM components from the halld_recon and halld_sim frameworks into its own github project
<a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__nam10.safelinks.protection.outlook.com_-3Furl-3Dhttps-253A-252F-252Furldefense.proofpoint.com-252Fv2-252Furl-253Fu-253Dhttps-2D3A-5F-5Fgithub.com-5Frjones30-5FHDDM-2526d-253DDwMFaQ-2526c-253DCJqEzB1piLOyyvZjb8YUQw-2526r-253DTe-5FhCR4EUlJ6iCDYLJ8Viv2aDOR7D9ZZMoBAvf2H0M4-2526m-253Dnq3Ol7nci8SC5pT7ptTiDQukZoL7RA8gk7-5FeXhtm5GA-2526s-253DzEfT8ymErDUIUXHSSEogqCdfkUzhp0L0NVOq4f-2DsiE4-2526e-253D-26data-3D04-257C01-257Crichard.t.jones-2540uconn.edu-257Ca695446b9e7744c94a2608d8d1f12598-257C17f1a87e2a254eaab9df9d439034b080-257C0-257C0-257C637490180946552360-257CUnknown-257CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0-253D-257C1000-26sdata-3DwA7Baq1ZLp781zylwvkNrHxKxpPTXrkrlMgH4KSNGzY-253D-26reserved-3D0&d=DwMFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=Te_hCR4EUlJ6iCDYLJ8Viv2aDOR7D9ZZMoBAvf2H0M4&m=SSMxougKUsiQ5AP7Xb65Zbk_s4eei2Dl8Uygn8v3enc&s=4u7ZgIBmWLBEey9EQVZLFzR88eLglAvMVp1Ud1S9PHY&e=" target="_blank">
https://github.com/rjones30/HDDM</a>, with its own build system based on CMake and supporting documentation. The software managers for GlueX may at some point want to split out hddm from where it is redundantly embedded in both halld_recon and halld_sim, and
 fork it to <a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__nam10.safelinks.protection.outlook.com_-3Furl-3Dhttps-253A-252F-252Furldefense.proofpoint.com-252Fv2-252Furl-253Fu-253Dhttps-2D3A-5F-5Fgithub.com-5FJeffersonLab-5FHDDM-2526d-253DDwMFaQ-2526c-253DCJqEzB1piLOyyvZjb8YUQw-2526r-253DTe-5FhCR4EUlJ6iCDYLJ8Viv2aDOR7D9ZZMoBAvf2H0M4-2526m-253Dnq3Ol7nci8SC5pT7ptTiDQukZoL7RA8gk7-5FeXhtm5GA-2526s-253Dicndcis5uqaXoeGn7tQyKIbLadLVSksovHP3QMz87xw-2526e-253D-26data-3D04-257C01-257Crichard.t.jones-2540uconn.edu-257Ca695446b9e7744c94a2608d8d1f12598-257C17f1a87e2a254eaab9df9d439034b080-257C0-257C0-257C637490180946562351-257CUnknown-257CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0-253D-257C1000-26sdata-3DvzpBhvDTHeyZW51aL9PavNUbqTJ-252Bnd-252BjPQUhjM8Ayaw-253D-26reserved-3D0&d=DwMFaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=Te_hCR4EUlJ6iCDYLJ8Viv2aDOR7D9ZZMoBAvf2H0M4&m=SSMxougKUsiQ5AP7Xb65Zbk_s4eei2Dl8Uygn8v3enc&s=bQeXHjy4i0e2npkUDUm0UmIJlkpHYkkirvr-74MB5SE&e=" target="_blank">
https://github.com/JeffersonLab/HDDM</a> so it can be managed using the version release system that Mark Ito presently manages.</div>
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<div>This was quite a bit of effort, but the reason I did it now was to support the creation of a set of GlueX activities on the Particle Physics Playground. This PPP web site provides a simple interface to sample data from a handful of well-known
 experiments (CLEO, BaBaR, CMS) that come with guided exercises called "playground activities" where students can "discover" the D+meson, or find the top quark in multi-jet events. Based upon Jupyter notebooks within a fully hosted analysis environment, I have
 found these to greatly lower the barrier to undergraduates getting involved in analysis without spending weeks and weeks learning C++ and ROOT. Even the ambitious high school student can master one of these activities on their own within a matter of a few
 hours.</div>
<div><br>
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<div>-Richard Jones</div>
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