Attendees: Guang Yang (GY), Ciro Riccio (CR), Chang Kee Jung (CKJ), Abraham Teklu (AT), Alex Ramirez (AR), Andriaseta Sitraka (AS), Eric Chong (EC), Ki-Young Jung (KYJ), Shih-Kai Lin (SL), Sunwoo Gwon (SG), Cesar Jusus Valls (CJV), Martini Tzanov (MT), Mikhail Danilov (MD), Nataliya Skrobova (NS), Perri Zilberman (PZ), Ki-Young Jung (KYJ), Christopher Mauger (CM)

Ciro Riccio - Updated on xsec fitter

GY: Which energy binning? CR: It is 40 MeV. GY: We should make sure we don't cut the time tick, ie the energy binning must be unit of 2.4 ns.

Abraham Teklu - Update on the neutron energy scale systematics

CM: The width of the gamma peak? AT: 20-30 tick
CM: It would be useful to look at the time structure from the beamline, the gamma flash may contain pi0 The gamma flash should essentially be peaked and provide us a time-resolution. The smearing effects are from detector.
CKJ: Do we have enough statistics in high energy? AT: Yes.
MD: What we know about the time calibration of different channel? GY: We didn't correct by the fiber length.
CKJ: Many effect can contribute. GY: Fiber length is the major error. CKJ: But we know it very well. CM: We should decouple the effects. GY: We can use cosmics.
MT: Resolution is very important, but also the bias. If you have a bias in time you bias the energy. How do you define the T0? GY: T0 is fixed for every channel.

Eric Chong - Status of efficiency correction

CKJ: Why the correction should be a sys error? EC: Missed answers
MD: If the MC is completely wrong you will not notice that. You should compare data and MC in different variables. GY&CKJ: Agree.

Guang Yang - Update on invisible scattering scaling

CKJ: Slide 6: What do you mean with weight 0? GY: I remove all the event with elastic scattering. CKJ: Why does it grow as it goes it in the detector?GY: It could be a detector effect. CKJ: You need to figure this out.
MD: Why invisible scattering is so important? GY: We have 20 PE threshold.
CKJ: You can allineare your detector. GY: We know the detector is not straight. CKJ: You can measure it and take it out.