1

Study of u-channel contribution at TDA region

[1] Numerical analysis due to small amount of data after applying kinematical cuts for TDA :

No EVENT = ~22k2

2 3.0T

Q

2W GeV

[2] Acceptance recalculation[3] Apply the constant FRAD correction[4] Kinematical range

Q2 = 1.75, 2.05, 2.35, 2.65, 2.95, 3.35, 3.85, 4.35 GeV2

-t = -6.6, -5.8, -5.0, -4.2, -3.4GeV2 : Δt = 0.8GeV2

-u = -1.8, -1.4, -1.0, -0.6, -0.2GeV2 : Δu =0.4GeV2

2Simulation Real DATA

Angular Distribution in C.M.Applied the same kinematical constraints

2

2 3.0T

Q

2W GeV

3

Data distribution

4

GSIM distribution

Need more simulation data

Currently nearly completed simulation ~x20

5

CRS

Integrate all W (>2GeV) for increasing stat.

u-chn dependent

6

CRS

Integrate all W (>2GeV) for increasing stat.

u-chn dependent

7

CRS

Integrate all W (>2GeV) for increasing stat.

t-chn dependent

8

CRS

Integrate all W (>2GeV) for increasing stat.

t-chn dependent

9

CRS

Q2 dependent

10

CRS w/ JML modelRed : W=2.472GeVBlue : W=1.999GeV

11

CRS w/ JML modelRed : W=2.430GeVBlue : W=1.988GeV

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CRS w/ JML modelRed : W=2.472GeVBlue : W=1.999GeV

mono-pole w/ cut off 0.462GeV2

13

CRS w/ JML modelRed : W=2.430GeVBlue : W=1.988GeV

mono-pole w/ cut off 0.462GeV2