[Clas12_verystrange] PAC40 comments response, please read

Eugene Pasyuk pasyuk at jlab.org
Wed Jun 12 10:24:23 EDT 2013


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
> >> >>>> **************************************
> >> >>>>        @
> >> >>>>       /    *
> >> >>>>      /   ___  ___  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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> >> 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
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