<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<p>People,</p>
<p>Please find the notes below and at
<a class="moz-txt-link-freetext" href="https://halldweb.jlab.org/wiki-private/index.php/Hall_D_Staff_Meeting,_October_2,_2017">https://halldweb.jlab.org/wiki-private/index.php/Hall_D_Staff_Meeting,_October_2,_2017</a>
.</p>
<p> - Mark</p>
<p>__________</p>
<p> </p>
<div id="content" class="mw-body" role="main">
<h1 id="firstHeading" class="firstHeading" lang="en"><span
dir="auto">Hall D Staff Meeting, October 2, 2017</span></h1>
<div id="bodyContent" class="mw-body-content">
<div id="siteSub">From Gluex PRIVATE Wiki</div>
<div id="mw-content-text" dir="ltr" class="mw-content-ltr"
lang="en">
<p>Present: Alex Austregesilo, Marouen Baalouch, Thomas
Britton, Eugene Chudakov (chair), Mark Dalton, Alexandre
Deur, Hovanes Egiyan, Sergey Furletov, Mark Ito, David
Lawrence, Paul Mattione, Lubomir Pentchev, Elton Smith,
Sascha Somov, Simon Taylor, Beni Zihlmann
</p>
<h2><span class="mw-headline" id="Eugene">Eugene</span></h2>
<ul>
<li> recent retirements: Larry Cardman and Glenn Young
<ul>
<li> Larry: Associate Director for Physics for much of 6
GeV era</li>
<li> Glenn: Instrumental in 12 GeV project, a friend of
Hall D</li>
</ul>
</li>
<li> budget should be known soon</li>
<li> platform for the DIRC has arrived
<ul>
<li> water purification system arrived also</li>
</ul>
</li>
<li> magnet at 11 K
<ul>
<li> one compressor is not working</li>
<li> should be cold this week</li>
</ul>
</li>
</ul>
<h2><span class="mw-headline" id="David">David</span></h2>
<ul>
<li> work on online database, indexed by time
<ul>
<li> stores histograms and fits</li>
</ul>
</li>
</ul>
<h2><span class="mw-headline" id="Sergey">Sergey</span></h2>
<ul>
<li> restoring operation of the Hall DAQ system</li>
</ul>
<h2><span class="mw-headline" id="Elton">Elton</span></h2>
<ul>
<li> BCAL turn on today or tomorrow</li>
<li> charged pion polarizability
<ul>
<li> full scale prototype coming down, perhaps next week</li>
<li> stage into EEL</li>
<li> frame being constructed for forward carriage</li>
<li> ESAD section written</li>
<li> may compromise TAC run data quality </li>
</ul>
</li>
<li> analysis: new charged clusterizer for BCAL
<ul>
<li> matching efficiency has gone down a few percent</li>
<li> number of tracks has gone up</li>
</ul>
</li>
</ul>
<h2><span class="mw-headline" id="Simon">Simon</span></h2>
<ul>
<li> working extrapolation of tracks to outer detectors</li>
<li> cross sections: φ and ω</li>
<li> looking at K<sub>S</sub> for tracking systematics</li>
<li> Eugene: resolutions may also be changing from run
period to run period</li>
</ul>
<h2><span class="mw-headline" id="Sascha">Sascha</span></h2>
<ul>
<li> firmware upgrade to FCAL crates, TIs and TDs
<ul>
<li> after more testing with update everywhere</li>
</ul>
</li>
<li> working on 32 ns time shift with Ed Jastrzembski</li>
<li> working on trigger simulation
<ul>
<li> adding features, e. g., minimum ionizing particles
in FCAL</li>
</ul>
</li>
<li> pair spectrometer with updated filed map in simulation
<ul>
<li> TOSCA simulation from Sasha Glamazdin</li>
<li> good agreement in shape with TAC data</li>
</ul>
</li>
<li> working on energy calibration scale for pair
spectrometer
<ul>
<li> reconstruction work</li>
<li> look at TAC runs</li>
<li> normalization looks good</li>
</ul>
</li>
</ul>
<h2><span class="mw-headline" id="Mark_I.">Mark I.</span></h2>
<ul>
<li> planning for new work disk, non-Lustre, need to shrink
footprint from 77 TB to 45 TB</li>
<li> supporting various builds of various builds of GlueX
software</li>
<li> understanding how to work with containers for OSG jobs</li>
</ul>
<h2><span class="mw-headline" id="Mark_D.">Mark D.</span></h2>
<ul>
<li> BCAL work</li>
<li> looking a new charged clusterizer
<ul>
<li> inclusion of more energy may be degrading position
precision</li>
</ul>
</li>
</ul>
<h2><span class="mw-headline" id="Beni">Beni</span></h2>
<ul>
<li> luminosity with PS: confirms Justin conclusion that
amorphous runs scale with each other
<ul>
<li> TAC to PS ratio flat</li>
<li> different radiators do not show differences</li>
<li> avoiding beam charge and current measures</li>
</ul>
</li>
<li> integral non-linearity in CAEN TDCs
<ul>
<li> revisiting analysis</li>
<li> results not as good as expected</li>
<li> constants do remove the effect, seen in groups of 8</li>
</ul>
</li>
<li> TOF matching efficiency
<ul>
<li> not good near beam hole, nominal 90% drops to 70%</li>
<li> low luminosity runs show no such degradation</li>
</ul>
</li>
</ul>
<h2><span class="mw-headline" id="Alex_A.">Alex A.</span></h2>
<ul>
<li> running many launches these days</li>
<li> starting monthly analysis launches
<ul>
<li> one started last Friday almost done</li>
</ul>
</li>
<li> re-reconstruction of 17 data will be done for both
halves\
<ul>
<li> should take about a month</li>
</ul>
</li>
<li> collecting raw yields for '16 and '17, ρ, ω, and φ for
normalization studies
<ul>
<li> energy dependence seen</li>
</ul>
</li>
</ul>
<h2><span class="mw-headline" id="Thomas">Thomas</span></h2>
<ul>
<li> contributing to cross section studies</li>
<li> started looking at baryon sector in K<sup>+</sup>K<sup>-</sup>p</li>
<li> HDvis: upgrade to a usable product
<ul>
<li> interviewing detector groups on what they want to
see</li>
<li> orthographic view working</li>
<li> optimization work: factor of 3-5</li>
</ul>
</li>
</ul>
<h2><span class="mw-headline" id="Hovanes">Hovanes</span></h2>
<ul>
<li> working on TAC monitoring
<ul>
<li> added classes for JANA</li>
<li> wrote ROOTSys plug-in</li>
<li> address problems seen in previous runs</li>
<li> online version calculating ration TAC to PS</li>
</ul>
</li>
<li> FDC low-voltage needs re-design
<ul>
<li> new threshold scheme</li>
<li> will have separate IOC for FDC</li>
</ul>
</li>
<li> goniometer: added V-shaped 2 wires for TAC running
<ul>
<li> 10<sup>-6</sup> X<sub>)</sub> with wires 1 sigma
from beam center</li>
<li> encoder on x-stage missing course pulse sometimes</li>
</ul>
</li>
<li> working with Ben Raydo on gamma profiler
<ul>
<li> implement coincidence of x and y plane at low beam
intensity</li>
<li> VXS TDC replaces scalers</li>
</ul>
</li>
</ul>
<h2><span class="mw-headline" id="Lubomir">Lubomir</span></h2>
<ul>
<li> J/ψ analysis: remove timing-challenged portions of FCAL
<ul>
<li> φ, J/ψ, Bethe-Heitler yields better than before</li>
<li> still low intensity '17 data factor of two below
'16 data</li>
<li> writing analysis note</li>
</ul>
</li>
<li> FDC: preparing for run
<ul>
<li> LV, chiller on</li>
</ul>
</li>
<li> Beni: CDC will be turned on soon</li>
</ul>
<h2><span class="mw-headline" id="Alexandre">Alexandre</span></h2>
<ul>
<li> working on review of nucleon structure</li>
<li> going to MCC meetings
<ul>
<li> schedule has not shifted</li>
<li> last week hot check-out was started</li>
<li> raster test on the schedule </li>
<li> rapid access: waiting on RadCon</li>
</ul>
</li>
<li> beam energy monitoring
<ul>
<li> meeting this week to discuss version</li>
</ul>
</li>
<li> gas target for TAC: next run</li>
<li> PRAD target for TAC runs
<ul>
<li> discussed with Chris Keith</li>
<li> 2 mm hole to small, need 1 cm</li>
</ul>
</li>
<li> Eugene: ARM policy changed: ARM cannot do full survey
<ul>
<li> only RadCon can do it</li>
<li> may not be available weekends and evenings unless
pre-planned</li>
</ul>
</li>
<li> Eugene: run in December is short
<ul>
<li> proposals should be made for tests to do</li>
</ul>
</li>
</ul>
<h2><span class="mw-headline" id="Paul">Paul</span></h2>
<ul>
<li> new analysis library checked into the master branch
<ul>
<li> this analysis launch using it</li>
<li> specify analysis on command line, no need for
plug-ins anymore</li>
<li> documentation to come</li>
<li> will give talk at collaboration meeting</li>
</ul>
</li>
<li> CLAS analysis published</li>
</ul>
<h2><span class="mw-headline" id="Marouen">Marouen</span></h2>
<ul>
<li> working on normalization
<ul>
<li> η′ not enough statistics</li>
<li> studying $eta; instead</li>
</ul>
</li>
<li> η′→ηπ<sup>+</sup>π<sup>-</sup>
<ul>
<li> doing Dalitz plot analysis</li>
<li> systematics from MC differing from data</li>
</ul>
</li>
</ul>
</div>
<div class="printfooter"> Retrieved from "<a dir="ltr"
href="https://halldweb.jlab.org/wiki-private/index.php?title=Hall_D_Staff_Meeting,_October_2,_2017&oldid=3059">https://halldweb.jlab.org/wiki-private/index.php?title=Hall_D_Staff_Meeting,_October_2,_2017&oldid=3059</a>"
</div>
</div>
</div>
<div id="footer" role="contentinfo">
<ul id="footer-info">
<li id="footer-info-lastmod"> This page was last modified on 2
October 2017, at 17:54.</li>
<li id="footer-info-viewcount">This page has been accessed once.</li>
</ul>
</div>
<pre class="moz-signature" cols="72">--
Mark Ito, <a class="moz-txt-link-abbreviated" href="mailto:marki@jlab.org">marki@jlab.org</a>, (757)269-5295
</pre>
</body>
</html>