View source for GEn Analysis Meeting April 25 2024 10AM EST

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=Agenda=
# Pions on HCal - Gordon
# [https://sbs.jlab.org/cgi-bin/DocDB/private/ShowDocument?docid=563 Inelastic Contamination Estimation] - Sean Jeffas

=Attendance=
Arun, Kate, Jack, Vladimir, Hunter, Gordon, Todd, Braian, Sean, Jacob, Bogdan, Xiaochao, Vimikthi, Gary, Faraz, Eric, Silviu

=Minutes=
Gordon's talk:
* pions on HCal - can we distinguish from neutron events?
** what evidence do we have for these events?
** can we use the SBS GEMs?
** some fraction of boosted nucleon events will lead to a pion hitting HCal
** goal: identify inelastic background as inelastic and remove
** what fraction of results would come from both nucleon and pion hitting HCal?
** Bogdan: separation is on the scale of 1m
** maybe utilize simulation for an estimate?

Sean's talk:
* bad vs good timing cut
** 5 or 3 sigma cut outside of peak is bad
* slide 8 should be "Pion Difference"
* f_inel = f_bkg - f_acc - f_N2 - f_pi
* accidentals: passes all cuts except it happens to fall in the timing window and are not quasi-elastic electron-neutron events

=Meeting link information=

See email invitation, or contact Arun Tadepalli for Zoom link.