Hydrogen interaction comparison between STT and 3DST Guang Yang - - PowerPoint PPT Presentation

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Oct 28, 2023 437 likes •507 views

Hydrogen interaction comparison between STT and 3DST Guang Yang STT - STT claims they can measure nuclear effect using C3H6 as radiator foil. - ~ 12% hydrogen mass in STT. - Need graphite target for subtraction. 3DST - Same thing, only

SLIDE 1

Hydrogen interaction comparison between STT and 3DST

Guang Yang

SLIDE 2

STT claims they can measure nuclear effect using C3H6 as radiator foil.
~ 12% hydrogen mass in STT.
Need graphite target for subtraction.

STT

SLIDE 3

3DST

Same thing, only difference is material and tracking efficiency.
~8% hydrogen in 3DST comparing to 12% in STT by mass.
STT does not provide simulated tracking efficiency, they claim 2 mrad angular

resolution and ~5% momentum resolution(mainly MCS)

SLIDE 4

Comparison without smearing

I use realistic scintillator and STT geometries.
Same number of input events.
STT mainly more hydrogen interactions.

(~12% in mass than ~8% in mass)

3DST STT

Red - hydrogen Black - Carbon

SLIDE 5

Comparison with smearing

STT: they claim 2 mrad angular and 5% momentum resolutions
3DST: 20 mard angular resolution (roughly from Kevin’s study )

20% momentum resolution (roughly from Chang Hwan’s study)

Bear in mind: we use much more realistic simulations!