[Clas12_verystrange] just some numbers to throw at ya
Michael Dugger
dugger at jlab.org
Thu Jun 14 17:02:07 EDT 2012
Perhaps I am thinking about this all wrong, but I don't see how we gain
much -if anything- by measuring the polarization on an event basis.
-Michael
On Thu, 14 Jun 2012, Lei Guo wrote:
> We expected this question, and it was discussed at our weekly meeting.
> Basically, if it comes up, we should stress that it IS normal that
> different experiments will do similar yet complimentary measurements,
> such as STAR and PHENIX, and CLAS12 and GLUEX (Meson spectroscopy,
> e.g.). Gluex obviously has the advantage of acceptance, but CLAS12 has
> the advantage of resolution and PID. We also have the advantage of
> measuring the beam polarization on an event basis, while GLUEX beam
> polarization is obtained from calculation.
>
> In any case, our physics goals are similar, and it should be desirable
> that two experiment can cross check each other.
>
> Lei
> On Jun 14, 2012, at 3:50 PM, Carlos Salgado wrote:
>
>> Igor
>>
>> Yes, of course the question should go both ways.... just interested
>> in how we can answer it.
>> (It seems that Gluex is not proposing a measure of omega?)
>> -Carlos
>>
>>
>> On Jun 14, 2012, at 9:54 AM, Igor Strakovsky wrote:
>>
>>> Carlos,
>>>
>>> How is about alternative question addressed to GluEx?
>>>
>>> Igor
>>>
>>> On Thu, 14 Jun 2012 09:10:52 -0400 (EDT), Carlos Salgado <salgado at jlab.org
>>>>
>>> wrote:
>>>
>>>> Lei
>>>>
>>>> As you will know well (being a GluEx member), GluEx is sending a
>>>> Cascade/Strange-hybrid proposal to PAC39.
>>>> How is the CLAS12/FWT compare with them? What can we do better?
>>>> Perhaps PAC will be interested to know.
>>>> -Carlos
>>>>
>>>> ----- Original Message -----
>>>> From: "Lei Guo" <lguo at jlab.org>
>>>> To: "Johann Goetz" <jgoetz at ucla.edu>
>>>> Cc: "clas12 verystrange" <clas12_verystrange at jlab.org>
>>>> Sent: Monday, June 11, 2012 6:05:47 PM
>>>> Subject: Re: [Clas12_verystrange] just some numbers to throw at ya
>>>>
>>>>
>>>> What about the moments for the accepted events?
>>>>
>>>>
>>>> On Jun 11, 2012, at 5:05 PM, Johann Goetz wrote:
>>>>
>>>>
>>>> distributions were certainly isotropic in the CM frame of the parent
>>>> particles.
>>>>
>>>>
>>>>
>>>> Do you mean the helicity frame of the Xi(1820) and Lambda? I'm
>>>> supposed to
>>>> still go to the w&m workshop. But I will meet you first in the
>>>> morning.
>>>> Tomorrow we will try to weight the generated events with the help
>>>> of Dennis,
>>>> I guess?
>>>>
>>>>
>>>> Lei
>>>>
>>>>
>>>>
>>>> ***These are for generated events***
>>>> I need to send these events through the fastmc to get the acceptance
>>>> equivalent.
>>>>
>>>> H (1, 0, 1, 1) = 2.593e-04 + i 2.961e-04
>>>> H (1, 0, 3, 1) = 5.957e-04 + i 7.105e-04
>>>> H (1, 0, 3, 2) = -5.373e-05 + i 2.210e-05
>>>> H (1, 0, 3, 3) = 2.824e-06 + i -6.330e-07
>>>> H (1, 0, 5, 1) = 8.350e-04 + i 1.082e-03
>>>> H (1, 0, 5, 2) = -1.408e-04 + i 5.941e-05
>>>> H (1, 0, 5, 3) = 1.204e-05 + i -5.116e-06
>>>> H (1, 0, 5, 4) = 2.517e-06 + i 1.138e-05
>>>> H (1, 0, 5, 5) = 6.033e-07 + i -6.525e-07
>>>> H (1, 1, 1, 1) = -1.067e-05 + i 7.996e-06
>>>> H (1, 1, 3, 1) = -8.773e-06 + i 1.105e-05
>>>> H (1, 1, 3, 2) = -5.633e-06 + i -4.329e-06
>>>> H (1, 1, 3, 3) = -1.048e-07 + i 3.548e-06
>>>> H (1, 1, 5, 1) = -6.181e-06 + i 1.555e-05
>>>> H (1, 1, 5, 2) = -9.076e-06 + i -3.540e-06
>>>> H (1, 1, 5, 3) = 2.206e-07 + i 9.737e-06
>>>> H (1, 1, 5, 4) = -2.169e-06 + i -1.148e-07
>>>> H (1, 1, 5, 5) = -2.438e-07 + i -2.848e-07
>>>>
>>>>
>>>> --
>>>> Johann T. Goetz, PhD.
>>>> jgoetz at ucla.edu
>>>> Nefkens Group, UCLA Dept. of Physics & Astronomy
>>>> Hall-B, Jefferson Lab, Newport News, VA
>>>> Office: 757-269-5465 (CEBAF Center F-335)
>>>> Mobile: 757-768-9999
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