[G14_run] DNP meeting contributed talks

Wed Jul 2 09:06:36 EDT 2014

Igor,
Your point is understood. Peng and Tsuneo will present quasi-free neutron
data. No one who reads their abstracts will be confused. The g14 group will
review their slides prior to the DNP to ensure balanced presentations - that
is what counts.
Andy

On 7/1/14, 8:31 PM, "Igor Strakovsky" <igor at va.gwu.edu> wrote:

> On Tue, 01 Jul 2014 20:23:05 -0400, "Igor Strakovsky" <igor at va.gwu.edu> wrote:
> 
>> Dear Peng,
>> 
>> You HAVE NO NEUTRON DATA !!  There quasi-neutron or deuteron data!!!
>> 
>> Igor
>> 
>> On Tue, 1 Jul 2014 17:31:27 -0400, Peng Peng <pp9e at virginia.edu> wrote:
>> 
>>> Dear Colleagues,
>>> 
>>> I have made some changes base on the suggestions of Igor and Tsuneo, the new
>>> version is as follows.
>>> -title-
>>> Polarization observables for double charged pion photo-production with
>>> polarized HD target
>>> -/title-
>>> 
>>> -abstract-
>>> A complete characterization of the spectrum of N* and Delta resonances for
>>> nucleon is essential to understand the internal structure of the nucleon.
>>> However, both the recent Lattice QCD calculation and the conventional
>>> Constitute Quark Model have predicted more resonances than experimentally
>>> observed. In order to identify the missing resonances using partial wave
>>> analysis, polarization observables are needed to be measured in experiment.
>>> The work presented in this talk is to analyze the polarization observables
>>> for double charged pion photo-production with polarized HD target(G14
>>> experiment in Jlab). With circularly polarized beam, and longitudinal
>>> polarized target(one free proton, one bound proton and one bound neutron),
>>> three polarization observables in the double pion photo-production are
>>> measured. The proton data will be compared with an earlier Jlab experiment
>>> G9, and the new neutron data will also be presented.
>>> -/abstract-
>>> 
>>> Cheers,
>>> Peng
>>> On Jun 27, 2014, at 12:46 PM, Peng Peng <pp9e at virginia.edu> wrote:
>>> 
>>>> Dear Colleagues,
>>>> 
>>>> I would like to give a contributed talk in the DNP meeting this Fall.
>>>> Following is the abstract, your comments will be greatly appreciated.
>>>> 
>>>> -title-
>>>>   Polarization observables for double charged pion photo-production with
>>>> polarized HD target
>>>> -/title-
>>>> 
>>>> -abstract-
>>>>   A complete characterization of spectrum of N* and Delta resonances for
>>>> nucleon is essential to understand the internal structure of the nucleon.
>>>> However both the recent Lattice QCD and the conventional Constitute Quark
>>>> Model have predicted more resonances than experimentally observed. Most of
>>>> these missing resonances lie above 1.8 GeV with broad line-shapes and they
>>>> overlap with their neighboring states. To distinguish the overlapping
>>>> states 
>>>> requires efforts from both experimentalists and theorists. On the
>>>> experiment 
>>>> side, measuring the polarization observables for all the decay channels
>>>> will 
>>>> help to remove the ambiguities in deterring the multipoles in partial wave
>>>> analysis. On the theory side, using more realistic pion mass in Lattice QCD
>>>> calculation and adding the new measured data in the phenomenological models
>>>> will provide us a more accurate model. The joint efforts from both the
>>>> theory 
>>>> and the experiment will deepen our understanding in the confinement region
>>>> of 
>>>> QCD. The work presented in this talk is to analyze the polarization
>>>> observables for double charged pion photo-production with polarized HD
>>>> target. This experiment with the name G14 was conducted in Hall B in
>>>> Jefferson Lab from November 2011 to May 2012. Both circularly and linearly
>>>> polarized beam with high polarization were used in G14, and the polarized
>>>> HD 
>>>> has both longitudinal polarized protons and neutrons. The center of mass
>>>> energy ranges from 1.4GeV to 2.2GeV for circularly polarized beam, and
>>>> ranges 
>>>> from 1.6GeV to 2.2GeV for linearly polarized beam. Many final states
>>>> channels 
>>>> were produced in this experiment, such as single pion, double pion and Kaon
>>>> Lambda, etc. This talk will present the three polarization observables in
>>>> the 
>>>> double pion photo-production with both longitudinal polarized proton and
>>>> neutron target and circularly polarized beam. An earlier experiment in Hall
>>>> B 
>>>> JLab, G9a,  has given the results for this process with polarized proton
>>>> target. The new results from G14 will be compared with the G9 results for
>>>> proton target, and the new neutron data will also be presented.
>>>> -/abstract-
>>>> 
>>>> Cheers,
>>>> Peng
>>>> 
>>>> On Jun 27, 2014, at 12:00 PM, g14_run-request at jlab.org wrote:
>>>> 
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>>>>> 
>>>>> Today's Topics:
>>>>> 
>>>>>   1. g14 group meeting on 27June2014, 9:00am (Charles Hanretty)
>>>>> 
>>>>> 
>>>>> ----------------------------------------------------------------------
>>>>> 
>>>>> Message: 1
>>>>> Date: Thu, 26 Jun 2014 12:06:06 -0400
>>>>> From: Charles Hanretty <charleshanretty at gmail.com>
>>>>> Subject: [G14_run] g14 group meeting on 27June2014, 9:00am
>>>>> To: g14_run at jlab.org
>>>>> Message-ID:
>>>>> <CAL9AGi9S=LdHYioiqZ-_UhwA86=iDRxJWKfqTCOG=XR0v25dSQ at mail.gmail.com>
>>>>> Content-Type: text/plain; charset="utf-8"
>>>>> 
>>>>> Dear Collaborators,
>>>>> 
>>>>> Our next group meeting is scheduled for tomorrow, Friday, June 27th,
>>>>> at 9:00am in room A-110.
>>>>> 
>>>>>           (instructions for off-site participants below)
>>>>> 
>>>>> Agenda:
>>>>> * pass1 cooking
>>>>> * ongoing analyses
>>>>> * other items
>>>>> 
>>>>> (see http://clasweb.jlab.org/rungroups/g14/wiki/index.php/June_27,_2014 )
>>>>> 
>>>>> Please update the agenda as required.
>>>>> 
>>>>> ==========================================================
>>>>> Instructions for offsite participants:
>>>>> * Dial Toll-Free Number: 866-740-1260 (U.S.& Canada)
>>>>>    o International participants dial: Toll Number: 303-248-0285
>>>>>    o Or International Toll-Free Number:http://www.readytalk.com/intl
>>>>> * Enter 7-digit access code, 2877656 followed by #
>>>>> ==========================================================
>>>>> 
>>>>> 
>>>>> -- 
>>>>> Cheers,
>>>>> Charles Hanretty
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>>>>> 
>>>>> End of G14_run Digest, Vol 33, Issue 9
>>>>> **************************************
>>>> 
>>> 
>> 
>> Igor Strakovsky, SAID CNS The George Washington University
>> Tel: 703-726-8344(NV),202-994-4742(FB),Skype: igors1945_2
>> Fax: 202-994-3001(FB),Emails: igor at va.gwu.edu, igor at jlab.org
> 
> Igor Strakovsky, SAID CNS The George Washington University
> Tel: 703-726-8344(NV),202-994-4742(FB),Skype: igors1945_2
> Fax: 202-994-3001(FB),Emails: igor at va.gwu.edu, igor at jlab.org
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