[Clas12_verystrange] Omega-

Michael Dugger dugger at jlab.org
Fri Feb 24 14:06:36 EST 2012


Yes, you are correct in your interpretation. However, Derek and I are not 
getting consistent results so there is a problem that has to be sorted 
out.

-Michael

On Fri, 24 Feb 2012, Lei Guo wrote:

> Hi, Michael,
>
> If I understand this correctly, this new plot shows a background that
> includes both actual background that has K+K+K0, and background that
> have pions/protons misidentified as kaons, correct?
>
> Thanks!
>
> Lei
> On Feb 24, 2012, at 11:32 AM, Michael Dugger wrote:
>
>>
>> Hi,
>>
>> I have generated ~100 million background events and blended them
>> with an Omega- signal, and want to see if the plot I get seems
>> reasonable.
>>
>> The plot OmegaMbranch.gif is attached and shows the relative amount
>> of background to be expected when a K+ K+ and K0 is seen (the K0 is
>> reconstructed from a pi+ pi- pair). I have put in a PID scheme, but
>> do not approximate the Cerenkov counter response. The PID is only
>> from beta and momentum information.
>>
>> Thanks for your time.
>>
>> Take care,
>> Michael
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