[Clas_cascades] Minutes Thu Jul 29 posted (fwd from Kijun)

[Elton Smith]

---------- Forwarded message ----------
Date: Fri, 30 Jul 2010 10:02:51 -0400
From: Kijun Park <parkkj at jlab.org>
To: Elton Smith <elton at jlab.org>
Cc: clas_cascades-bounces at jlab.org, parkkj at jlab.org
Subject: Re: [Clas_cascades] Minutes Thu Jul 29 posted

Elton Smith wrote:
> Present: Elton, Stepan, Hovanes, Kijun
> On the phone: Lewis, Zhiwen <br>
> Notes by Elton.
>
> == Announcements==
>
> == Normalization ==
> # No changes, latest version posted on wiki
> # All tex and figures will be added to the cvs repository for save
> keeping.
>
> == Comments on PHi-- Note ==
> # Correction for decays outside of target estimated to be 15+/-5%.
> # This correction has been included into the upper limits
> # All documentation has been updated to reflect latest results
> # Upper limit has increased to 700 pb, with the addition of the 15% loss
> for decays with 5% uncertainty, as well as updated number number of
> 10->15% uncertainty in normalization.
> # Figure 20? in normalization note has been included into the response to
> the committee. Lewis will send Hovanes the .eps file for best
>
> == Draft of Phi-- Paper ==
> # Hovanes will start a draft of the paper.
> # The draft will be provided to committee as soon as appropriate, but
> response will not be delayed.
> # We discussed how to include comparison of g11/eg3 Delta production.
> Elton suggests to mention comparison in text but no figure so that CLAS
> may allow publication to proceed without formal review of that data. In
> any case the final results depend on it only indirectly as input to the
> systematic error on the normalization.
>
> == Theses ==
> # Zhiwen and Haiyun should provide final pdf versions of their theses to
> Reinhard for posting on CLAS thesis page.
>
>
> == Next Meeting Aug 5, 9:00 am ==
> # Everyone read and comment on Phi-- analysis note and response to
> committee. Any suggestions should be incorporated before next week.
>
>
> Elton Smith
> Jefferson Lab MS 12H5
> 12000 Jefferson Ave
> Suite # 16
> Newport News, VA 23606
> elton at jlab.org
> (757) 269-7625
> (757) 269-6331 fax
> _______________________________________________
> Clas_cascades mailing list
> Clas_cascades at jlab.org
> https://mailman.jlab.org/mailman/listinfo/clas_cascades
>
Hi, All.
Here is my minor comments on Phi--(1862) analysis note.
Some of these may be due to my mis-understanding. (my apology)

Sincerely yours,
Kijun

Date : July 29, 2010 version

(1) page 10: Just better understanding for me, what is the reason of
proton momentum cut P_p=0.150GeV ?
     From Fig.4(left), there is no event below 200MeV !
(2) page 10: Mass rage of Lambda: 1.1108GeV<M <1.1202GeV3 => I confused
the unit when I looked first time. 3 is footnote number.
(3) page10:  there is no M_I in Eq(2)
(4) page13: middle-top:  $\gamma D \to pp\pi^-$  should be $\gamma d \to
pp\pi^-$
(5) page15: I believed the notation between ctau(fig) and ctau tilda(new
notation) is same ?
(6) page15: Eq(5), no explain about $\Delta\vec{V_\Lambda}$ and
$\vec{P_{\Lambda} $
(7) page22: top paragraph: "number of reconstructed simulated ..." =>
"number of reconstructed events in a invariant mass bin to the total
number of generated event for the same bin"
(8) page22: Since we didn't apply the bin migration correction, I am not
sure whether we have to explain what the bin migration is with Eq(7) and
(8).
(9) page23: last paragraph: "The first raw are..." => "The first row is..."
(10) Fig13,14:  Are they all sectors ? or single sector ?
(11)page34: "The last run of 2004 was run 45529 ..." => "The first run
of 2004 was run45529 ..." ?
      I am confused a little bit run information that you provide here,
I don't see 45527 run shows a drop.
(12) page35: I am not sure that your statement is suitable "... the
photon energy range above 4.5GeV, the absolute normalizations are
consistent even for the photon energies below the trigger energy range."
(13) page40: section 13.1 middle para: $\Xi^-(3121)$ should be $\Xi^-(1321)$
(14) Fig27, page44: Just curious: For the fitting method, the mass
width(red dots) seems to be 25MeV because 4data points in 1GeV mass
window but you said it is based on 20MeV binning.
(15) page52: "..upper limit of less then 3nb ..." to be "...upper limit
of less than 3nb ..."







-- 
---------------------------------------******
Kijun Park
Jefferson Lab.
Suit 5 Room 12_1/B107
12000 Jefferson Av.
Newport News VA 23606
Phone 757-269-6989