[Clas12_verystrange] PAC request

[Lei Guo]

Do you have the momentum distributions of the xi1820 events? It will  
help if you can somehow get it for us.

Lei
On Jun 21, 2012, at 8:06 PM, Johann Goetz wrote:

> Maybe we could also plot the momentum distributions of the kaons and  
> pions in the final state -- I believe most of the tracks are lower  
> momentum where kaon/pion ID is unambiguous but I am not 100% sure  
> about this.
>
> On Wed, Jun 20, 2012 at 7:06 PM, Lei Guo <lguo at jlab.org> wrote:
> The presentation went quite well, as I gathered from various  
> people's reactions. We did get one request, hopefully the last, from  
> the PAC. Michael, Derek and I have formed a plan (as described  
> below), using the already generated pythia gamma p-->p+anything  
> events. I checked with the PAC reader Diego and he is fine with our  
> plan. Please let us know if you have any other suggestions.
>
> Lei
>
> Begin forwarded message:
>
>> From: Diego Bettoni <bettoni at fe.infn.it>
>> Date: June 20, 2012 9:30:28 PM EDT
>> To: Lei Guo <lguo at jlab.org>
>> Subject: Re: response attached (PR12-12-008)
>>
>> Hi Lei, yes this is fine. If you could get us something by tomorrow  
>> I think it would be great.
>> regards, diego
>>
>> On 21/06/2012 00:59, Lei Guo wrote:
>>> Hi, Diego,
>>>
>>> I've talked with my colleague and we will evaluate this for the 4K
>>> (K+K+K- plus pi-pi+ forming a K0)channel in Omega- measurement. We  
>>> will
>>> concentrate on pythia background events where multiple pions are  
>>> present
>>> and can contribute to our background, if their momenta are high  
>>> enough
>>> that clas PID would start to fail. Do you think this would be
>>> sufficient? We should have some of the results tomorrow, or the  
>>> latest
>>> on Friday morning unless there is some unforseen problems.
>>>
>>> Please let us know if our plan would satisfy the PAC.
>>>
>>> THanks a lot!
>>>
>>> Lei
>>> On Jun 20, 2012, at 6:19 PM, Diego Bettoni wrote:
>>>
>>>> Dear Lei,
>>>> I have a request from the PAC: we would like to see a background
>>>> evaluation with a more realistic pion and kaon identification (i.e.
>>>> taking into account the PID inefficiencies). Do you think that you
>>>> could produce this for at least one channel in the next day or so ?
>>>> Thank you very much
>>>> diego
>>>>
>
>
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>
>
> -- 
> 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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