[Eic-core-phys] [EXTERNAL] CORE SIDIS deliverables & next WG mtg.: Nov. 11, 9am Eastern (3pm CET 6pm Yerevan)

[Gunar Schnell]

Dear CORE DIS & SIDIS enthusiasts,

as just discussed, we will reconvene

   +++ Thursday Nov. 11th, 2021 - 9am Eastern, 3pm CET & 6pm Yerevan +++

and also next Monday (same time) to continue our discussion of CORE 
simulations.


As promised, here some of the plots/results that should/could make it into 
the proposal:

1) resolutions in inclusive DIS variables (Yordanka?)

2) p-eta plots for different energy settings (I suggest to have plots
  for all energy settings, but include in the proposal perhaps 2 or 3
  more "extreme" settings -- just to get a flavor of the change of
  acceptance with change of energy
 	o superimpose PID coverage (could be done by Pawel/myself using
 	 some illustrator program on kaon distribution
          => what about pions and (anti)protons?


3) SIDIS-variable distributions (in particular z, Phperp)
 	o effect of both  general acceptance and also of PID coverage
 	o ideally, do this in x-Q2 "bins"

4) closely related, resolutions of SIDIS variables, incl. also phi

5) impact I: statistical precision of SIDIS cross section in bins of
  (x,y,z, Phperp) [or (x,Q2,z,Phperp)].
 	=> input to TMD fitter (Alexey) for impact study

6) impact II: assign spin states to originally unpolarized PYTHIA
  simulation (see, e.g., Appendix C of JHEP 12 (2020) 010;
  https://urldefense.proofpoint.com/v2/url?u=https-3A__inspirehep.net_files_c79d4a2a0c3319d30b767deefa17d6fc&d=DwIBAg&c=CJqEzB1piLOyyvZjb8YUQw&r=j2nVWPYkVu_g_8UgmNTpIOwdxsfZ27gFzo9MkyDLevk&m=gd4MbEMMbBLoSRClU_ECG8MEK9Ne6OiBzDzH4ivZhhQLORVe52AqUVscNvb8MvVq&s=ISngTXDjoxaXSyAY4zgOXIP8LMi9yyp_tsaiUnYqlGI&e= )
  based on models of A_LL or Sivers A_UT; extract those asymmetries and
 	o compare reconstructed asym's to model input
 	o impact studies by phenomenology (Alexey)


While the first four points I consider a "must", especially the last one 
would be "nice to have", but we may run out of time for that.

Any further ideas are of course welcome.

Best regards,
Gunar