[Clas12_verystrange] PAC40 comments response, please read

[Igor Strakovsky]

Mike,

Vitali said that your concern is correct

cheers, igor

On Wed, 12 Jun 2013 10:32:11 -0400 (EDT), Michael Dugger <dugger at jlab.org> 
wrote:

> 
> Eugene,
> 
> I assume that p_b is the Omega momentum because Igor wrote that
> 
> "Dalitz plot is constructed in terms of (K+ \Omega) vs (K0 \Omega)"
> 
> 
> 
> -Michael
> 
> On Wed, 12 Jun 2013, Eugene Pasyuk wrote:
> 
>> There are p_1, p_2, p_3, -_Omega, but p_b is not defined in the proposal. Is 
>>it a momentum of an intermediate baryon?
>>
>> -Eugene
>>
>> ----- Original Message -----
>>> From: "Igor Strakovsky" <igor at va.gwu.edu>
>>> To: "clas12 verystrange" <clas12_verystrange at jlab.org>
>>> Sent: Wednesday, June 12, 2013 10:07:48 AM
>>> Subject: Re: [Clas12_verystrange] PAC40 comments response, please read
>>>
>>> all is in the body of the proposal
>>>
>>> On Wed, 12 Jun 2013 10:06:48 -0400 (EDT), Eugene Pasyuk
>>> <pasyuk at jlab.org>
>>> wrote:
>>>
>>>> Igor ,
>>>> Yesterday we could not figure out what is p_b.
>>>>
>>>> -Eugene
>>>>
>>>> ----- Original Message -----
>>>>> From: "Igor Strakovsky" <igor at va.gwu.edu>
>>>>> To: "Michael Dugger" <dugger at jlab.org>
>>>>> Cc: "clas12 verystrange" <clas12_verystrange at jlab.org>
>>>>> Sent: Wednesday, June 12, 2013 9:57:54 AM
>>>>> Subject: Re: [Clas12_verystrange] PAC40 comments response, please
>>>>> read
>>>>>
>>>>> Mike,
>>>>>
>>>>> That is the theoretical plot and I sent Vitali's clarification to
>>>>> Lei
>>>>> and Eugene
>>>>>
>>>>> Here you are...
>>>>>
>>>>> The Dalitz plot is constructed in terms of (K+ \Omega) vs (K0
>>>>> \Omega
>>>>> )
>>>>>    variables. However the amplitude (see Fig.10) is not symmetric
>>>>>    relative
>>>>>    to the permutation of the K0 and K+ final states due to isospin
>>>>>    and
>>>>>    charge conservation. Therefore the resonance contribution is
>>>>>    only
>>>>>    seen
>>>>>    in one band. For a fully symmetric amplitude  one could expect
>>>>>    two-band
>>>>>    structure as shown in Fig.13. Such a symmetric amplitude should
>>>>>    include
>>>>>    isospin 3/2 \Sigma resonances in the intermediate state.
>>>>>      Hence
>>>>>     the
>>>>>    Dalitz plot might be very useful to disentangle various
>>>>>    production
>>>>>    mechanism and to understand the reaction dynamics.
>>>>>
>>>>>    Note the reaction mechanism can be more complicated then
>>>>>    depicted
>>>>>    in
>>>>>    Fig.10. More realistic  calculation should also take the  CLAS
>>>>>    acceptance in to  account.
>>>>>
>>>>> On Wed, 12 Jun 2013 09:52:24 -0400 (EDT), Michael Dugger
>>>>> <dugger at jlab.org>
>>>>> wrote:
>>>>>
>>>>>>
>>>>>> Igor,
>>>>>>
>>>>>> On page 25 of the proposal there is Fig. 12 that shows "phase
>>>>>> space
>>>>>> only"
>>>>>> distributions and Fig. 13 that shows the "fully symmetric"
>>>>>> reaction.
>>>>>> The
>>>>>> right panel of Fig. 12 has a vertical band at about 5.5 that is
>>>>>> also
>>>>>> seen in
>>>>>> Fig. 13. The vertical band for Fig. 12 does not extend as much as
>>>>>> for Fig.
>>>>>> 13.
>>>>>>
>>>>>> We tried to understand the distributions during the meeting
>>>>>> yesterday but we
>>>>>> did not find the definition of "p_b" in the proposal.
>>>>>>
>>>>>> Also, I do not know what "fully symmetric" means.
>>>>>>
>>>>>> In short, we do not understand the figures because we don't know
>>>>>> what p_b
>>>>>> is, and that means we don't know how to reply to the comment.
>>>>>>
>>>>>> We just need a bit of clarification.
>>>>>>
>>>>>> Take care,
>>>>>> Michael
>>>>>>
>>>>>> On Wed, 12 Jun 2013, Igor Strakovsky wrote:
>>>>>>
>>>>>>> Me too and I do not know what Lei is asking me for
>>>>>>>
>>>>>>> On Wed, 12 Jun 2013 09:29:00 -0400 (EDT), Michael Dugger
>>>>>>> <dugger at jlab.org>
>>>>>>> wrote:
>>>>>>>
>>>>>>>>
>>>>>>>> Hi,
>>>>>>>>
>>>>>>>> The response to 9 and 10 seem OK to me.
>>>>>>>>
>>>>>>>> Take care,
>>>>>>>> Michael
>>>>>>>>
>>>>>>>> On Tue, 11 Jun 2013, Lei Guo wrote:
>>>>>>>>
>>>>>>>>> Hi, All,
>>>>>>>>>
>>>>>>>>> I compiled a response to PAC40 comments. Please check and let
>>>>>>>>> me
>>>>>>>>> know
>>>>>>>>> if you think it should be modified.
>>>>>>>>> Under svn, please check out PAC40Comment.pdf or
>>>>>>>>> PAC40Comment.docx
>>>>>>>>>
>>>>>>>>> Specifically, we are missing an answer to question 6, which
>>>>>>>>> Igor
>>>>>>>>> promised that he will do it tonight.
>>>>>>>>> Also, I felt the answer to question 9 and10 might not be
>>>>>>>>> adequate.
>>>>>>>>> Maybe Mike can take a look at it?
>>>>>>>>>
>>>>>>>>> Cheers!
>>>>>>>>>
>>>>>>>>> Lei