Hi Michael,
I fixed the bug in the new TrackLength(). The problem was that
the fit was not extended all the way to the scintillators, for
efficiency in the track fitting. Chi, could this be the problem of
the other PathLength() in the dst?
I've also written a code 'geomfull.cc' to calculate the
derivatives of the elastic offsets versus WC rigid body offsets (all
three chambers in the sector), and added a couple of options in
'blastrc' for adjustments to the WC geometry in each sector:
GeomWC.LeftOffset: 0,0,0,0,0,0
GeomWC.RightOffset: 0,0,0,0,0,0
The six numbers are: dx(cm), dy(cm), dz(cm), d alpha(deg), d beta
(deg), d gamma(deg), and are added to in the same coordinates from
'blast.geom'. This will be much easier than hand editing the
geometry files each time.
--Chris
_______________________________________
TA-53/MPF-1/D111 P-23 MS H803
LANL, Los Alamos, NM 87545
505-665-9804(o) 665-4121(f) 662-0639(h)
_______________________________________
On Mar 21, 2006, at 15:25:57, Michael Kohl wrote:
> Hi Chris,
>
> Yuan found only -1 for your pathlength. Is it not filled with lrd?
> We should fix this before I continue the recrunch ...
>
> Regards,
>
> Michael
>
>
>
>
> ---------- Forwarded message ----------
> Date: Mon, 20 Mar 2006 22:12:08 -0500
> From: Yuan Xiao <yxiao@MIT.EDU>
> To: Michael Kohl <kohlm@mit.edu>
> Subject: Re: v3_4_17 lrd-recrunch complete for hydrogen
> 12144-13278; started
> 2005 deuterium 13279-16506
>
> Hi, Michael,
>
> Seems that Chris's new variables ltwl/r have NOT been correctly
> written
> into ntuples: they are all -1 currently.
>
> Regards,
> Yuan
>
> Quoting Michael Kohl <kohlm@MIT.EDU>:
>
>> Hi,
>> the v3_4_17 recrunch of the hydrogen data (12144-13278) is complete.
>> I've now started the v3_4_17 recrunch of 2005 deuterium data
>> (13279-16506).
>> Besides Doug's new wire chamber geometry, the large grid of the
>> Blast field map has been used (begrid2.large). ntuples and dst
>> have been extended for Chris' variables.
>> Data can be found in
>> >>>>> /net/data/11/Analysis/data/v3_4_17/lrd <<<<
>> Eugene, Adrian, and others, please check that the reconstructed
>> variables and kinematic offsets between the v3_4_17 (/net/data/11/
>> Analysis/data/v3_4_17/lrd) and v3_4_16 (/net/data/5/Analysis/data/
>> v3_4_16/lrd_new_wch_cal) recrunch are consistent (this is the
>> first time that the field map on the extended grid is used).
>> Regards,
>>
>> Michael
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>
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