[Halld-offline] DBCALIncidentParticle

[Richard Jones]

Teagan,

What feature of the simulations made this information difficult to use? Was
the particle id giving not giving the correct information?

-Richard Jones

On Fri, Mar 4, 2016 at 12:44 PM, beattite <beattite at uregina.ca> wrote:

> Hello.
>
> Yes, we intended to use this information to apply sampling fraction
> smearing based on incident particle type, though it never got off the
> ground.  We were trying to implement this for photons recently, but the
> simulation was done in a way that made the implementation more difficult
> than expected, so for the moment, we've stopped working on it.  We're
> weren't yet sure if we wanted to pursue this (by re-doing some of the
> simulations) or not.
>
>
> On 04.03.2016 09:03, Zisis Papandreou wrote:
>
>> Hi gents: my impression is the same as Richard’s and David’s. When
>> Tegan comes in this morning I’ll have him comment as well. Cheers,
>> Zisis...
>>
>> On Mar 4, 2016, at 8:36 AM, David Lawrence <davidl at jlab.org [8]>
>>> wrote:
>>>
>>> Hi All,
>>>
>>> Richard is correct. The intent was to use this information in
>>> mcsmear to determine adjustments
>>> to the BCAL response based on simulations Andrei did some years ago.
>>> I thought that Tegan
>>> was working on this recently (within the last few months). I don’t
>>> know what the status is though.
>>>
>>> Regards,
>>> -David
>>>
>>> On Mar 4, 2016, at 9:03 AM, Richard Jones <richard.t.jones at uconn.edu
>>> [9]> wrote:
>>>
>>> Mark,
>>>>
>>>> From the name, I infer that this is an object that captures the
>>>> information from the <bcalTruthIncidentParticle> tag in the
>>>> simulation event hddm record. Any time a particle in the MC
>>>> simulation enters the bcal through the inner surface, its
>>>> coordinates, type, and momentum are recorded in a
>>>> <bcalTruthIncidentarticle> tag that gets added to the output
>>>> event. At the same time, a stamp is placed on that particle so
>>>> that neither it nor any secondaries descended from it can create
>>>> further bcalTruthIncidentParticles. This keeps shower particles
>>>> from getting appended to the list and making it confusing to
>>>> interpret.
>>>>
>>>> I am not sure nowadays who might be making use of that
>>>> information, but it has a clear meaning and is potentially useful
>>>> in Monte Carlo studies for computing efficiencies and adjusting
>>>> matching windows, etc.
>>>>
>>>> -Richard Jones
>>>>
>>>> On Fri, Mar 4, 2016 at 7:58 AM, Mark Dalton <dalton at jlab.org [5]>
>>>> wrote:
>>>>
>>>> Hi guys,
>>>>>
>>>>> Is anyone aware of what the intent of the DBCALIncidentParticle
>>>>> class was and whether it is being used for anything?
>>>>>
>>>>> Best,
>>>>> Mark Macrae Dalton
>>>>>
>>>>> --
>>>>> Staff Scientist, Jefferson Lab
>>>>> office: +1 757 269 6931 [1]
>>>>> mobile: +1 757 849 2929 [2]
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>>
>> Dr. Zisis Papandreou
>> Professor of Physics, Ph.D., P.Phys.
>> ---------------------------------------------------------
>> Department of Physics
>> University of Regina
>> 3737 Wascana Parkway
>> Regina, SK S4S 0A2 CANADA
>>
>> PHONE: (306) 585-5379Fax: (306) 585-5659
>> Email: zisis at uregina.ca [11]
>>
>> Website:
>>
>>
>> http://www.uregina.ca/science/physics/people/faculty-research/zisis-papandreou/index.html
>> [12]
>>
>>
>>
>> Links:
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>> [8] mailto:davidl at jlab.org
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>> [11] mailto:zisis at uregina.ca
>> [12]
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