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<p>We switched G4 versions when the SLIC HEAD revision was used to solve the displaced vertex problem, c. October 2015.</p>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Sho Uemura <meeg@slac.stanford.edu><br>
<b>Sent:</b> Thursday, August 4, 2016 1:28:59 PM<br>
<b>To:</b> Bradley T Yale<br>
<b>Cc:</b> Stepan Stepanyan; hps-analysis@jlab.org<br>
<b>Subject:</b> Re: [Hps-analysis] New WABs</font>
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<div class="PlainText">When did we move from 9.6.p01 to 10.01.p02?<br>
<br>
On Thu, 4 Aug 2016, Bradley T Yale wrote:<br>
<br>
> Up until yesterday.<br>
><br>
> ________________________________<br>
> From: Sho Uemura <meeg@slac.stanford.edu><br>
> Sent: Thursday, August 4, 2016 1:21:59 PM<br>
> To: Bradley T Yale<br>
> Cc: Stepan Stepanyan; hps-analysis@jlab.org<br>
> Subject: Re: [Hps-analysis] New WABs<br>
><br>
> I'm out of touch - how long have we been using 10.01.p02?<br>
><br>
> On Thu, 4 Aug 2016, Bradley T Yale wrote:<br>
><br>
>> 5x more WABs are done using the 10.01.p03 version:<br>
>><br>
>><br>
>> /mss/hallb/hps/production/pass6/recon/wab/1pt05/wabv2_10to1_4062dz_*<br>
>><br>
>><br>
>> where "4062" refers to the updated target thickness (in nm).<br>
>><br>
>> So to clarify, the original 100 wabv2 files in that directory use SLIC v10.01.p02, (w/ original thickness), and files 101-500 (as labelled above) use 10.01.p03 and the new thickness.<br>
>><br>
>> The rest of the new ones (501-1000) are in progress, and I can match these using the old version + new target thickness as well. WABs are pretty cheap, as suggested.<br>
>><br>
>> ________________________________<br>
>> From: Hps-analysis <hps-analysis-bounces@jlab.org> on behalf of Sho Uemura <meeg@slac.stanford.edu><br>
>> Sent: Thursday, August 4, 2016 10:50:00 AM<br>
>> To: Stepan Stepanyan<br>
>> Cc: hps-analysis@jlab.org<br>
>> Subject: Re: [Hps-analysis] New WABs<br>
>><br>
>> I think running WABs is pretty cheap ("10x" just matches the amount of<br>
>> wabv1 we had), and that is one of the validation checks we need.<br>
>><br>
>> But yes, before we use the new SLIC for any big production we need to<br>
>> check everything.<br>
>><br>
>> On Thu, 4 Aug 2016, Stepan Stepanyan wrote:<br>
>><br>
>>> May be before running x10 of WAB we should make some small amount of<br>
>>> simulations to validate it.<br>
>>><br>
>>> On 8/4/16 10:26 AM, Sho Uemura wrote:<br>
>>>> New SLIC is 10.01.p03. I don't know what validation has been done or is<br>
>>>> planned to make sure none of the physics we care about has changed.<br>
>>>><br>
>>>> On Thu, 4 Aug 2016, Maurik Holtrop wrote:<br>
>>>><br>
>>>>> Has the version of GEANT4 changed between the old and new SLIC?<br>
>>>>><br>
>>>>> If it has, then I think there is a big reason to have enough data with<br>
>>>>> both versions to make a meaningful comparison.<br>
>>>>> We can discuss if this would also be needed as well if only the target<br>
>>>>> thickness changed. I would think probably not?<br>
>>>>><br>
>>>>> - Maurik<br>
>>>>><br>
>>>>>> On Aug 4, 2016, at 9:40 AM, Bradley T Yale <btu29@wildcats.unh.edu><br>
>>>>>> wrote:<br>
>>>>>><br>
>>>>>> Sure.<br>
>>>>>> The old SLIC is still around, but it should be up-to-date with this one<br>
>>>>>> though.<br>
>>>>>> I think it was just future stability that led to moving away from the<br>
>>>>>> HEAD revision (hopefully Jeremy can comment).<br>
>>>>>> From: Sho Uemura <meeg@slac.stanford.edu><br>
>>>>>> Sent: Thursday, August 4, 2016 1:02:54 AM<br>
>>>>>> To: Bradley T Yale<br>
>>>>>> Cc: hps-analysis@jlab.org; Takashi Maruyama<br>
>>>>>> Subject: Re: New WABs<br>
>>>>>><br>
>>>>>> Is it possible to do this with both the old and new SLIC?<br>
>>>>>><br>
>>>>>> On Thu, 4 Aug 2016, Bradley T Yale wrote:<br>
>>>>>><br>
>>>>>>> It's no problem.<br>
>>>>>>><br>
>>>>>>> I'll go ahead and make them with the updated target thickness (0.0004062<br>
>>>>>>> vs. 0.0004375 cm).<br>
>>>>>>><br>
>>>>>>> ________________________________<br>
>>>>>>> From: Sho Uemura <meeg@slac.stanford.edu><br>
>>>>>>> Sent: Wednesday, August 3, 2016 8:24:02 PM<br>
>>>>>>> To: Bradley T Yale<br>
>>>>>>> Cc: hps-analysis@jlab.org; Takashi Maruyama<br>
>>>>>>> Subject: Re: New WABs<br>
>>>>>>><br>
>>>>>>> The events look fine. Normalization hasn't changed much (Rafo's a and b<br>
>>>>>>> factors are about the same). Distribution shapes don't look<br>
>>>>>>> significantly<br>
>>>>>>> different.<br>
>>>>>>><br>
>>>>>>> Would be good to have a factor of 10 more of the pure WABs, if it's<br>
>>>>>>> easy.<br>
>>>>>>> I don't expect it to tell us anything new but it will make things<br>
>>>>>>> clearer.<br>
>>>>>>><br>
>>>>>>> On Mon, 1 Aug 2016, Bradley T Yale wrote:<br>
>>>>>>><br>
>>>>>>>> Unweighted WAB events using the v2 generator have finished recon.<br>
>>>>>>>> Everything that contains them are labelled 'wabv2':<br>
>>>>>>>><br>
>>>>>>>><br>
>>>>>>>> Pure WAB:<br>
>>>>>>>><br>
>>>>>>>> /mss/hallb/hps/production/pass6/recon/wab/1pt05/wabv2_10to1_HPS-EngRun2015-Nominal-v4-4-fieldmap_3.8-fix_pairs1_*<br>
>>>>>>>><br>
>>>>>>>><br>
>>>>>>>> WAB with background:<br>
>>>>>>>><br>
>>>>>>>> /mss/hallb/hps/production/pass6/recon/tritrig-wab-beam-tri/1pt05/tritrigv1_NOSUMCUT-wabv2-egsv3-triv2-g4v1_HPS-EngRun2015-Nominal-v4-4-fieldmap_3.8-fix_pairs1_*<br>
>>>>>>>><br>
>>>>>>>><br>
>>>>>>>> The ones with background also contain tritrig without an ESum generator<br>
>>>>>>>> cut, to eliminate possible errors from it.<br>
>>>>>>>><br>
>>>>>>>> Once Takashi finishes tweaking the egs5 procedure to eliminate WAB<br>
>>>>>>>> double-counting, I'll rerun everything along with an updated target<br>
>>>>>>>> thickness as well, probably in a fresh directory.<br>
>>>>>>>><br>
>>>>>>>><br>
>>>>>>>> -Bradley<br>
>>>>>>>><br>
>>>>>>><br>
>>>>>> _______________________________________________<br>
>>>>>> Hps-analysis mailing list<br>
>>>>>> Hps-analysis@jlab.org<br>
>>>>>> <a href="https://mailman.jlab.org/mailman/listinfo/hps-analysis">https://mailman.jlab.org/mailman/listinfo/hps-analysis</a><br>
>>>>><br>
>>>>><br>
>>>> _______________________________________________<br>
>>>> Hps-analysis mailing list<br>
>>>> Hps-analysis@jlab.org<br>
>>>> <a href="https://mailman.jlab.org/mailman/listinfo/hps-analysis">https://mailman.jlab.org/mailman/listinfo/hps-analysis</a><br>
>>><br>
>>> _______________________________________________<br>
>>> Hps-analysis mailing list<br>
>>> Hps-analysis@jlab.org<br>
>>> <a href="https://mailman.jlab.org/mailman/listinfo/hps-analysis">https://mailman.jlab.org/mailman/listinfo/hps-analysis</a><br>
>>><br>
>> _______________________________________________<br>
>> Hps-analysis mailing list<br>
>> Hps-analysis@jlab.org<br>
>> <a href="https://mailman.jlab.org/mailman/listinfo/hps-analysis">https://mailman.jlab.org/mailman/listinfo/hps-analysis</a><br>
>><br>
><br>
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