Difference between revisions of "Pion Meeting June 11 2021 4:30PM ET"

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=Attendance=
 
=Attendance=
  
 +
Elham, Sakib, Julia, Raj, David, Wouter
  
 
=Minutes=
 
=Minutes=
 +
 +
* David's slides:
 +
** Large number of events are peaked in two peaks phi-shifted by 10 degrees from the pion lucite detector
 +
** This peak bypasses the showermax at the high-radius end
 +
** These events seem to hit the outer corners of the lucite
 +
** TODO: run simulation with showermax lightguides as vacuum (hypothesis: is it showermax secondaries scattering to high-r into the lightguide, then back inwards to the lucite?)
 +
** TODO: add detector both upstream and downstream of showermax at the same time
 +
* Elham
 +
** Pion lucite lightguide as vacuum: slight decrease in Moller rate
 +
** Pion/electron ratio at main detector plane is 0.1%, as expected, with rate of Moller electrons in agreement -> all seems well
 +
** Most background in lucite is coming from same sector in hit phi vs vertex phi
 +
** Angle into lucite: small coding error
 +
** TODO: fix expression for theta with hit.x and hit.y
 +
* Julia
 +
** Bayesian correction of pion correction: postponed due to technical difficulties

Latest revision as of 21:17, 24 June 2021

Back to Main Page >> Pion Meetings

Agenda

  1. Updates on pion detector studies (Elham)
  2. Beam generator simulations (Raj)
  3. Bayesian pion background correction (Julia)

Attendance

Elham, Sakib, Julia, Raj, David, Wouter

Minutes

  • David's slides:
    • Large number of events are peaked in two peaks phi-shifted by 10 degrees from the pion lucite detector
    • This peak bypasses the showermax at the high-radius end
    • These events seem to hit the outer corners of the lucite
    • TODO: run simulation with showermax lightguides as vacuum (hypothesis: is it showermax secondaries scattering to high-r into the lightguide, then back inwards to the lucite?)
    • TODO: add detector both upstream and downstream of showermax at the same time
  • Elham
    • Pion lucite lightguide as vacuum: slight decrease in Moller rate
    • Pion/electron ratio at main detector plane is 0.1%, as expected, with rate of Moller electrons in agreement -> all seems well
    • Most background in lucite is coming from same sector in hit phi vs vertex phi
    • Angle into lucite: small coding error
    • TODO: fix expression for theta with hit.x and hit.y
  • Julia
    • Bayesian correction of pion correction: postponed due to technical difficulties
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