LDRD (1)Calculation Code is given by M. Dec/02 Dec.11, 2013 K. Park 1 (1)Discussion with Christian to understand physics variable in the code (2)Decide to test the code with DIS event for instant: x = , Q 2 = 1-10 GeV 2 (3)Set the initial beam (e -, 2 H) energies 10GeV/250GeV (4)Make sure event distribution should be uniform in x, Q 2, angles (5)Obtain some basic outputs/plots in order to understand code correctly Last week events

LDRD (1)Calculation Code is given by M. Sargsian (2)Understanding variable definition (3)Simple event generated in DIS kinematic region e- beam = 10 GeV 2 H beam = 250 GeV Recoiled nucleon 3-momentum : rand(seed) For instant, p R is ignored (ideal: p R ~ R -1 ) Observe the dependence :  R, Q 2 Dec.11, 2013 K. Park 2

LDRD (1)Calculation Code is given by M. Sargsian (2)Understanding variable definition (3)Simple event generated in DIS kinematic region Dec.11, 2013 K. Park 3

LDRD (1)Calculation Code is given by M. Sargsian (2)Understanding variable definition (3)Simple event generated in DIS kinematic region Dec.11, 2013 K. Park 4

LDRD (1)Calculation Code is given by M. Sargsian (2)Understanding variable definition (3)Simple event generated in DIS kinematic region e- beam = 10 GeV 2 H beam = 250 GeV Recoiled nucleon 3-momentum : rand(seed) – uniformity For instant, p R is ignored – evaluating Observe the dependence :  R, Q 2 – further study On-going work Dec.11, 2013 K. Park 5

EM Cal Cherenkov VTX trackers RICH EM Cal Dual-solenoid DIRC+TOF Dipole IP CENTERAL TRACKING REGION (1)Using GEMC-2.0  (2)GEMC for EIC initiated work’s done by Z. Zhao (1)Consistent check with G4 beam-line simulation (2)Detector component/geometry optimization (3)Beam tracing check (B and no B) (4)… Dec.11, 2013 K. Park 6

EM Cal Cherenkov VTX trackers RICH EM Cal Dual-solenoid DIRC+TOF Dipole VTX trackers FAR-FORWARD TRACKING REGION (1)Using GEMC-2.0  (2)GEMC for EIC initiated work’s done by Z. Zhao. (3)Far-Forward tracker (test) Dec.11, 2013 K. Park 7

FAR-FORWARD TRACKING REGION (1)Using GEMC-2.0  (2)GEMC for EIC initiated work’s done by Z. Zhao. (3)Far-Forward tracker (test) Dec.11, 2013 K. Park 8 Beam info : 60Gev: proton (70%), 5GeV electron(80%), collision Freq=0.75GHz Norm. emit. (\epsilon_N*10^-6 [m])

FAR-FORWARD TRACKING REGION (1)Using GEMC-2.0  (2)GEMC for EIC initiated work’s done by Z. Zhao. (3)Far-Forward tracker (test) (1)Using G4-beam simulation data (provided by Vasiliy, 60GeV,proton) (2)Angle distribution outgoing particle in the range 0 < z < 4 m After the dipole, track is fit by 1 st order linear function. The linear slope is interpreted by angle distribution. Dec.11, 2013 K. Park 9

FAR-FORWARD TRACKING REGION (1)Using GEMC-2.0  (2)GEMC for EIC initiated work’s done by Z. Zhao. (3)Far-Forward tracker (test) (1)Using G4-beam simulation data (provided by Vasiliy, 60GeV,proton) (2)Angle distribution outgoing particle in the range 0 < z < 4 m After the dipole, track is fit by 1 st order linear function. The linear slope is interpreted by angle distribution. Dec.11, 2013 K. Park 10

FAR-FORWARD TRACKING REGION (1)Using GEMC-2.0  (2)GEMC for EIC initiated work’s done by Z. Zhao. (3)Far-Forward tracker (test) (4)Increase inner diameter of the central VTX tracker in downstream VTX trackers Dec.11, 2013 K. Park 11