[Clas12_verystrange] PAC40 comments response, please read

Eugene Pasyuk pasyuk at jlab.org
Wed Jun 12 10:06:48 EDT 2013


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
> >>>> **************************************
> >>>>        @
> >>>>       /    *
> >>>>      /   ___  ___  Lei Guo _______________________
> >>>>     L_O_/ ____ Florida International University____/_/
> >>>>         \   |             Physics Dept., CP
> >>>> 212                       /  /
> >>>>      /    \ |             Miami, FL
> >>>> 33199        /                       /  /
> >>>>     /  I_/ \  ____ USA _____ /______/__________/  /
> >>>>    /   /
> >>>> L
> >>>>                 /              /              /
> >>>>                                       /  /
> >>>>   /   /                       /              /              / /
> >>>>    /
> >>>>  /_/__________/______/______/__________/_/
> >>>> /_/__________/______/______/__________/_/
> >>>> 305-348-0234(o)
> >>>> 
> >>>> **************************************
> >>>> 
> >>>> 
> >>>> 
> >>>> 
> >>>> 
> >>>> 
> >>>> _______________________________________________
> >>>> Clas12_verystrange mailing list
> >>>> Clas12_verystrange at jlab.org
> >>>> https://mailman.jlab.org/mailman/listinfo/clas12_verystrange
> >>>> 
> >>> _______________________________________________
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> >>
> >> 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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