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Measurement E151M3512

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Experiment: EG4, 2016

Spokespersons: Xiaochao Zheng

Experiment comment: Final asymmetry results for the ep-> e pi+ (n) channel extracted from CLAS/EG4 data obtained using a longitudinally polarized beam and a longitudinally polarized NH3 target (CAA HS07-02).

No publications available for this experiment

Quantity measured: ALU,
Beam asymmetry.
Beam: e, polarization: longitudinal
Target: p (Z=1, A=1), polarization: longitudinal
Final state: π+n, polarization: none

Q2 : 0.496 GeV2
W : 1535 GeV
ε : 0.8773
Ebeam : 2.999 GeV
εL: 0.3941 

Select data slice:
cos(θπ+) =
Observable quantity measured (Y axis): ALU,
Plot measurement data

Parameter (X axis): φ(π+), degrees

Click here to get data in text file, delimited with tabs.

Measured data:

cos(θπ+) φ(π+),
degrees 		ALU Stat. error Syst. error
0.25 282 -0.6415 0.2226 0.0326
0.45 90 0.5389 0.2346 0.0319
0.55 90 -0.1389 0.2355 0.0301
0.55 114 0.4182 0.237 0.0311
0.65 54 -0.2227 0.2687 0.0303
0.65 102 -0.0542 0.2571 0.03
0.65 246 -0.287 0.2598 0.0305
0.75 66 0.132 0.2721 0.0301
0.75 90 0.0314 0.238 0.03
0.75 102 -0.3608 0.2373 0.0309
0.75 210 0.0012 0.2657 0.03
0.75 246 0.1879 0.222 0.0302
0.75 270 0.135 0.2191 0.0301
0.85 54 -0.4744 0.2225 0.0315
0.85 102 0.5596 0.1893 0.032
0.85 222 -0.5343 0.2396 0.0318
0.85 234 -0.284 0.2225 0.0305
0.85 246 -0.2641 0.1788 0.0305
0.85 258 -0.1104 0.2058 0.0301
0.85 270 0.3707 0.2114 0.0309
0.85 282 -0.1395 0.2258 0.0301
0.85 294 0.2687 0.2134 0.0305
0.85 306 -0.4807 0.2521 0.0315
0.85 318 0.0732 0.246 0.03
0.95 210 0.2076 0.2895 0.0303
0.95 246 -0.1451 0.2723 0.0301
0.95 258 -0.1833 0.2124 0.0302
0.95 270 0.1247 0.2252 0.0301
0.95 282 -0.0305 0.2037 0.03
0.95 294 -0.151 0.2391 0.0302
0.95 306 0.3493 0.2323 0.0308
0.95 318 0.117 0.2092 0.0301