[G14_run] G14 single pion analysis note
Peng Peng
pp9e at virginia.edu
Mon Apr 20 09:27:40 EDT 2015
Dear Collaborators,
I have uploaded a draft for the analysis of gamma + neutron --> proton + pi- channel using the kinematic fitting method to this folder: https://userweb.jlab.org/~peng/g14_1pi/ , which has a pdf file and latex file. I really appreciate any of your comments.
Cheers,
Peng
On Apr 15, 2015, at 5:22 AM, g14_run-request at jlab.org wrote:
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> Today's Topics:
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> 1. g14 group meeting on 15April2015, 9:00am (Charles Hanretty)
> 2. Re: g14 group meeting on 15April2015, 9:00am (Jamie Fleming)
> 3. g14 group meeting on 15April2015, 9:00am (Jamie Fleming)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 14 Apr 2015 13:51:13 -0400
> From: Charles Hanretty <charleshanretty at gmail.com>
> Subject: [G14_run] g14 group meeting on 15April2015, 9:00am
> To: g14_run at jlab.org
> Message-ID:
> <CAL9AGi--a5HScBTr2O6Hu+Z5u=jqQOjaxKTVtuWsR0DSWSpK0A at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Dear Collaborators,
>
> Our next group meeting is scheduled for tomorrow, Wednesday, April 15th,
> at 9:00am in room L207.
>
> (instructions for off-site participants below)
>
> Agenda:
> * ongoing analyses
> * other items
>
> (see http://clasweb.jlab.org/rungroups/g14/wiki/index.php/April_15,_2015 )
>
> Please update the agenda as required.
>
> ==========================================================
>
> *Instructions for offsite participants:*
> - Connecting via a web browser:
>
> ? go to
>
> *https://bluejeans.com/9225697356 <https://bluejeans.com/9225697356>*?
> under "Attend a Meeting" on the right:
> - join as participant
> - under "Meeting ID", enter 9225697356
> - under "Name", enter your name or something I can recognize
> - select "ENTER MEETING" (Blue Button)
>
> ? if you have not used Bluejeans before on that PC/MAC, you will
> be asked to download a plug-in, and you might have to go through that
> process twice.
>
> ? you will be directed to a new page, with video from the participants on
> the right. At the top of that panel (just to the right of the symbol with
> two blue heads) is an icon of a PC screen - that gives you "sharing
> options", under which you can select "share my desktop". That lets you
> present/show anything that?s on your desktop - a ppt or pdf presentation,
> etc, so that everyone can view;
>
> ? to leave the meeting at the end, use the red phone icon in the upper
> right to hangup
>
> - Connecting via a telephone:
> ? call one of the following numbers:
> - from USA/Canada: 1 888 240 2560; or 1 408 740 7256;
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> ? when prompted, enter the meeting ID, followed by #: 9225697356 #
> - as a participant, press the # key and you will join the meeting
>
> ? to leave the meeting at the end, just hang up
>
>
> (Instructions are also posted on the wiki page)
>
>
> ==========================================================
>
>
> --
> Cheers,
> Charles Hanretty
> -------------- next part --------------
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> ------------------------------
>
> Message: 2
> Date: Wed, 15 Apr 2015 10:08:56 +0100
> From: Jamie Fleming <s0678696 at sms.ed.ac.uk>
> Subject: Re: [G14_run] g14 group meeting on 15April2015, 9:00am
> To: Charles Hanretty <charleshanretty at gmail.com>, g14_run at jlab.org
> Message-ID: <v08h5on69sh76kaubbg9gdy3.1429088936647 at email.android.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hi all,
> Today's meeting clashes with an appointment of mine. I did have some questions to present, perhaps they can be simply be answered here.?
>
> - in the timing difference of the ToF and Tagger I still have the distribution offset from zero (~0.4). I am correcting the SC time used, is there something simple I am just not accounting for.?
>
> - similarly for delta beta. Comparing the corrected beta to the measured given by GPID the distribution is not centred around zero (~0.01). Although using betam - beta (again GPID) is centred around zero, which struck me as odd as this is not a corrected beta. To study this I reconstructed the kaon ?mass using uncorrected betam and momenta, which is perfectly centred on the PDG mass. With corrections, shifted to higher masses. Is betam pre corrected somehow??
>
> Your thoughts on these offsets would be greatly appreciated.?
>
> Jamie
>
> <div>-------- Original message --------</div><div>From: Charles Hanretty <charleshanretty at gmail.com> </div><div>Date:14/04/2015 18:51 (GMT+00:00) </div><div>To: g14_run at jlab.org </div><div>Subject: [G14_run] g14 group meeting on 15April2015, 9:00am </div><div>
> </div>Dear Collaborators,
>
> Our next group meeting is scheduled for tomorrow, Wednesday, April 15th,
> at 9:00am in room L207.
>
> (instructions for off-site participants below)
>
> Agenda:
> * ongoing analyses
> * other items
>
> (see http://clasweb.jlab.org/rungroups/g14/wiki/index.php/April_15,_2015 )
>
> Please update the agenda as required.
>
> ==========================================================
>
> Instructions for offsite participants:
> - Connecting via a web browser:
> ? go to https://bluejeans.com/9225697356
>
> ? under "Attend a Meeting" on the right:
> - join as participant
> - under "Meeting ID", enter 9225697356
> - under "Name", enter your name or something I can recognize
> - select "ENTER MEETING" (Blue Button)
>
> ? if you have not used Bluejeans before on that PC/MAC, you will
> be asked to download a plug-in, and you might have to go through that
> process twice.
>
> ? you will be directed to a new page, with video from the participants on
> the right. At the top of that panel (just to the right of the symbol with
> two blue heads) is an icon of a PC screen - that gives you "sharing
> options", under which you can select "share my desktop". That lets you
> present/show anything that?s on your desktop - a ppt or pdf presentation, etc, so that everyone can view;
>
> ? to leave the meeting at the end, use the red phone icon in the upper right to hangup
> - Connecting via a telephone:
> ? call one of the following numbers:
> - from USA/Canada: 1 888 240 2560; or 1 408 740 7256;
> - from UK: +44 203 608 5256;
> - from Italy: +39 05 104 20256;
>
> ? when prompted, enter the meeting ID, followed by #: 9225697356 #
> - as a participant, press the # key and you will join the meeting
>
> ? to leave the meeting at the end, just hang up
>
>
> (Instructions are also posted on the wiki page)
>
> ==========================================================
>
>
> --
> Cheers,
> Charles Hanretty
> -------------- next part --------------
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> -------------- next part --------------
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> ------------------------------
>
> Message: 3
> Date: Wed, 15 Apr 2015 10:22:28 +0100
> From: Jamie Fleming <s0678696 at sms.ed.ac.uk>
> Subject: [G14_run] g14 group meeting on 15April2015, 9:00am
> To: g14_run at jlab.org
> Message-ID: <d5ikw7m6599qes52exeoa8xl.1429089692455 at email.android.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hi all,
> Today's meeting clashes with an appointment of mine. I did have some questions to present, perhaps they can be simply be answered here.?
>
> - in the timing difference of the ToF and Tagger I still have the distribution offset from zero (~0.4). I am correcting the SC time used, is there something simple I am just not accounting for.?
>
> - similarly for delta beta. Comparing the corrected beta to the measured given by GPID the distribution is not centred around zero (~0.01). Although using betam - beta (again GPID) is centred around zero, which struck me as odd as this is not a corrected beta. To study this I reconstructed the kaon ?mass using uncorrected betam and momenta, which is perfectly centred on the PDG mass. With corrections, shifted to higher masses. Is betam pre corrected somehow??
>
> Your thoughts on these offsets would be greatly appreciated.?
>
> Jamie
>
> -------------- next part --------------
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>
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