<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Dear All,<div class="">this is data from Andrey:</div><div class=""><br style="font-family: monospace;" class=""><span style="font-family: monospace;" class="">spring18 outbeding 10 23.719 mC</span><br style="font-family: monospace;" class=""><span style="font-family: monospace;" class="">spring18 inbeding 10 84.123 </span><span style="font-family: monospace;" class="">mC</span><br style="font-family: monospace;" class=""><span style="font-family: monospace;" class="">fall18 inbeding 10 47.283</span><span style="font-family: monospace;" class=""> mC</span><span style="font-family: monospace;" class=""> </span></div><div class=""><span style="font-family: monospace;" class="">fall18 outbeding 10 38.824</span><span style="font-family: monospace;" class=""> mC</span><span style="font-family: monospace;" class=""> </span></div><div class=""><span style="font-family: monospace;" class="">spring19 inbeding 10 32.41</span><span style="font-family: monospace;" class=""> mC</span></div><span class=""><br class="">Outbening: 62.543 <br class="">Inbending: 163.816 <br class="">Outbending fraction: 0.2763<br class="">Inbending fraction: 0.7237 <br class=""></span><span class=""><br class=""></span><div class=""><font face="monospace" class=""><br class=""></font></div><div class=""><font face="monospace" class="">you can look there for original data</font></div><div class=""><font face="monospace" class=""><br class=""></font></div><div class=""><font face="monospace" class=""><a href="https://clas12mon.jlab.org/rga/stats/timeline/" class="">https://clas12mon.jlab.org/rga/stats/timeline/</a></font></div><div class=""><font face="monospace" class=""><br class=""></font></div><div class=""><font face="monospace" class="">Best regards, Nick.<br class=""></font><div><blockquote type="cite" class=""><div class="">On Apr 9, 2019, at 3:22 PM, Eugene Pasyuk <<a href="mailto:pasyuk@jlab.org" class="">pasyuk@jlab.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="WordSection1" style="page: WordSection1; font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">This actually relevant for anyone interested in detecting Lambda decays, add Very Strange to the list.<o:p class=""></o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div class=""><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">-Eugene <o:p class=""></o:p></div></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="border-style: solid none none; border-top-width: 1pt; border-top-color: rgb(181, 196, 223); padding: 3pt 0cm 0cm;" class=""><div style="margin: 0cm 0cm 0.0001pt 36pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><b class=""><span style="font-size: 12pt;" class="">From:<span class="Apple-converted-space"> </span></span></b><span style="font-size: 12pt;" class="">Clas12_first_exp <<a href="mailto:clas12_first_exp-bounces@jlab.org" class="">clas12_first_exp-bounces@jlab.org</a>> on behalf of Anselm Vossen <<a href="mailto:avossen@jlab.org" class="">avossen@jlab.org</a>><br class=""><b class="">Date:<span class="Apple-converted-space"> </span></b>Tuesday, April 9, 2019 at 12:35<span class="Apple-converted-space"> </span><br class=""><b class="">To:<span class="Apple-converted-space"> </span></b>Marco Mirazita <<a href="mailto:Marco.Mirazita@lnf.infn.it" class="">Marco.Mirazita@lnf.infn.it</a>>, Stepan Stepanyan <<a href="mailto:stepanya@jlab.org" class="">stepanya@jlab.org</a>><br class=""><b class="">Cc:<span class="Apple-converted-space"> </span></b>clas12 exp <<a href="mailto:clas12_first_exp@jlab.org" class="">clas12_first_exp@jlab.org</a>><br class=""><b class="">Subject:<span class="Apple-converted-space"> </span></b>Re: [Clas12_first_exp] Fwd:Consideration for the torus polarity flip for the remaining of the run<o:p class=""></o:p></span></div></div><div class=""><div style="margin: 0cm 0cm 0.0001pt 36pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div></div><div id="divtagdefaultwrapper" class=""><p style="margin-left: 36pt;" class=""><span style="font-size: 12pt;" class="">I second Marco's points about lambda's and di-hadrons.<o:p class=""></o:p></span></p><p style="margin-left: 36pt;" class=""><span style="font-size: 12pt;" class=""><o:p class=""> </o:p></span></p><p style="margin-left: 36pt;" class=""><span style="font-size: 12pt;" class="">I am also interested in polarized lambda studies (pending analysis proposal) which also relies on substantial outbending set. <o:p class=""></o:p></span></p><p style="margin-left: 36pt;" class=""><span style="font-size: 12pt;" class=""><o:p class=""> </o:p></span></p><p style="margin-left: 36pt;" class=""><span style="font-size: 12pt;" class="">Best,<o:p class=""></o:p></span></p><p style="margin-left: 36pt;" class=""><span style="font-size: 12pt;" class=""><o:p class=""> </o:p></span></p><p style="margin-left: 36pt;" class=""><span style="font-size: 12pt;" class="">Anselm<o:p class=""></o:p></span></p></div><div class="MsoNormal" align="center" style="margin: 0cm 0cm 0.0001pt 36pt; font-size: 11pt; font-family: Calibri, sans-serif; text-align: center;"><hr size="0" width="100%" align="center" class=""></div><div id="divRplyFwdMsg" class=""><div style="margin: 0cm 0cm 0.0001pt 36pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><b class=""><span style="" class="">From:</span></b><span style="" class=""><span class="Apple-converted-space"> </span>Clas12_first_exp <<a href="mailto:clas12_first_exp-bounces@jlab.org" class="">clas12_first_exp-bounces@jlab.org</a>> on behalf of Marco Mirazita <<a href="mailto:Marco.Mirazita@lnf.infn.it" class="">Marco.Mirazita@lnf.infn.it</a>><br class=""><b class="">Sent:</b><span class="Apple-converted-space"> </span>Monday, April 8, 2019 12:41:46 PM<br class=""><b class="">To:</b><span class="Apple-converted-space"> </span>Stepan Stepanyan<br class=""><b class="">Cc:</b><span class="Apple-converted-space"> </span>clas12 first exp<br class=""><b class="">Subject:</b><span class="Apple-converted-space"> </span>Re: [Clas12_first_exp] Fwd:Consideration for the torus polarity flip for the remaining of the run</span><o:p class=""></o:p></div><div class=""><div style="margin: 0cm 0cm 0.0001pt 36pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""> <o:p class=""></o:p></div></div></div><div class=""><div class=""><div style="margin: 0cm 0cm 0.0001pt 36pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Dear all,<br class="">for the E12-06-112A/E12-09-008A experiment (Lambda in SIDIS) the<span class="Apple-converted-space"> </span><br class="">critical point is the acceptance for low energy pi-, which is low with<span class="Apple-converted-space"> </span><br class="">inbending field.<br class="">I attached a plot of the MM(e Lambda X) simulations for inbending (red)<span class="Apple-converted-space"> </span><br class="">and outbending (black). The difference will be less striking at high Q2<span class="Apple-converted-space"> </span><br class="">but it is still there.<br class="">For E12-06-112B/E12-09-008B (dihadron production in SIDIS) we will have<span class="Apple-converted-space"> </span><br class="">two pions with opposite charge in the final state, therefore having both<span class="Apple-converted-space"> </span><br class="">inbending and outbending data will help in understanding the<span class="Apple-converted-space"> </span><br class="">systematics.<br class="">I understood that the agreement was to have 75% of the data with<span class="Apple-converted-space"> </span><br class="">inbending and 25% with outbending, is it still so?<br class="">Best regards,<br class="">Marco<br class=""><br class=""><br class=""><br class=""><br class="">Il 2019-04-07 22:03 Stepan Stepanyan ha scritto:<br class="">> Dear all,<br class="">><span class="Apple-converted-space"> </span><br class="">> For J/psi and also for the high mass (Q’2>5 GeV) TCS, the acceptance<br class="">> for the 3-particle final states (-++) in FD for outbending case is ~x2<br class="">> smaller compared to the inbending setting (see below). So, I propose<br class="">> to continue with intending for remaining 6 days (18 shifts).<br class="">><span class="Apple-converted-space"> </span><br class="">> Will be good to see similar motivations for inbending vs. outbending<br class="">> configurations for other approved RG-A experiments.<br class="">><span class="Apple-converted-space"> </span><br class="">> We need to see also accumulated charge for these two settings to date<br class="">> for RG-A production runs (>10 GeV).<br class="">><span class="Apple-converted-space"> </span><br class="">> Also, assuming we will need to do low luminosity, random trigger, and<br class="">> empty target runs with the new setting, real production run time with<br class="">> outbending polarity will be bit more than 5 days. Is there a real<br class="">> benefit to have one more setting (energy/polarity) with small amount<br class="">> of data?<br class="">><span class="Apple-converted-space"> </span><br class="">> Regards, Stepan<br class="">><span class="Apple-converted-space"> </span><br class="">>> Begin forwarded message:<br class="">>><span class="Apple-converted-space"> </span><br class="">>>> Hi Stepan,<br class="">>>><span class="Apple-converted-space"> </span><br class="">>>> Here is the photon energy dependence of the acceptance with 5<br class="">>> million<br class="">>>> generated events.<br class="">>>><span class="Apple-converted-space"> </span><br class="">>>> -Joseph<br class="">><span class="Apple-converted-space"> </span><br class="">><span class="Apple-converted-space"> </span><br class="">> _______________________________________________<br class="">> Clas12_first_exp mailing list<br class="">> <a href="mailto:Clas12_first_exp@jlab.org" class="">Clas12_first_exp@jlab.org</a><br class="">><span class="Apple-converted-space"> </span><a href="https://mailman.jlab.org/mailman/listinfo/clas12_first_exp" style="color: purple; text-decoration: underline;" class="">https://mailman.jlab.org/mailman/listinfo/clas12_first_exp</a><o:p class=""></o:p></div></div></div></div><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">_______________________________________________</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Clas12_first_exp mailing list</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class=""><a href="mailto:Clas12_first_exp@jlab.org" class="">Clas12_first_exp@jlab.org</a></span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class=""><a href="https://mailman.jlab.org/mailman/listinfo/clas12_first_exp" class="">https://mailman.jlab.org/mailman/listinfo/clas12_first_exp</a></span></div></blockquote></div><br class=""></div></body></html>