[SBS_sim] SBS-Tracker: New production with magnetic field

[Bogdan Wojtsekhowski]

Hi Evaristo,

Vladimir Nelyubin agreed to make a MC of
the background for GEp(5) configuration.
He is going to rewrite all geometry to insure
correct operation of the code.
So, it will take some time.

> Dear Bogdan,
>
> the uniform distribution is up to 100 MeV for gamma and up to 500 MeV
> for electrons. I am pretty sure we discussed also the energy
> distribution.
>
> In any case, if you have the distribution in digital o analytical form I
> will try to implement in the montecarlo
>
> Evaristo
>
> On Wed, 2011-03-16 at 18:47 -0400, Bogdan Wojtsekhowski wrote:
>> Dear Evaristo,
>>
>> Yes, we discussed the background in that e-mail.
>> However, it was not about "flat" distribution in energy up to 500 MeV?
>> Flat distribution likely made a significant difference in the amount of
>> events with the correlated hits in several chambers.
>> Real distribution supposed to have a peak at a few MeV.
>> Please comment,
>>
>> > Dear Bogdan,
>> >
>> > how (at present) the background is simulated was discussed many time
>> in
>> > the past.
>> >
>> > Flat means "uniform energy distribution".
>> >
>> > The level of backgrounds were defined last Dec/2010 (see attached
>> mail).
>> >
>> > Evaristo
>> >
>> > On Wed, 2011-03-16 at 08:17 -0400, Bogdan Wojtsekhowski wrote:
>> >> Dear Evaristo,
>> >>
>> >> I am still confused about your approach to the background.
>> >> Why 2000 photons? What does it means "flat"? Why it is flat?
>> >> Amount of background is very important.
>> >> We are not developing the code for some analysis.
>> >> We need to demonstrate that at specific background
>> >> conditions the data will be analyzable.
>> >> Please present and defend your approach for background
>> >> simulation.
>> >
>> > --
>> >  Evaristo Cisbani                      office : +39 06 4990 2847
>> >  Istituto Superiore di Sanita`         lab    : +39 06 4990 2347
>> >  Department of Technology and Health   fax    : +39 06 4938 7075
>> >  and Istituto Nazionale di Fisica Nucleare Roma - gruppo Sanita`
>> >  via Regina Elena 299 - 00161 Rome     web    :
>> www.iss.infn.it/cisbani
>> >  Italy
>> > ------------------------------------------------------------------------
>> > _______________________________________________
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>> > SBS_sim at jlab.org
>> > https://mailman.jlab.org/mailman/listinfo/sbs_sim
>> >
>>
>>
>
> --
>  Evaristo Cisbani                      office : +39 06 4990 2847
>  Istituto Superiore di Sanita`         lab    : +39 06 4990 2347
>  Department of Technology and Health   fax    : +39 06 4938 7075
>  and Istituto Nazionale di Fisica Nucleare Roma - gruppo Sanita`
>  via Regina Elena 299 - 00161 Rome     web    : www.iss.infn.it/cisbani
>  Italy
> ------------------------------------------------------------------------
>


-- 
Bogdan Wojtsekhowski
TJNAF, 757-269-7191