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Measurement E151M2803

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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 : 0.0844 GeV2
W : 1445 GeV
ε : 0.7524
Ebeam : 1.3383 GeV
εL: 0.134 

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
0.55 138 0.3716 0.2234 0.0309
0.55 234 -0.1093 0.1807 0.0302
0.55 246 0.3916 0.1461 0.0314
0.65 126 -0.0341 0.2387 0.03
0.65 138 0.1076 0.2511 0.0301
0.65 150 0.3633 0.2149 0.0309
0.65 162 0.1246 0.2579 0.0301
0.65 222 0.1383 0.2481 0.0301
0.65 234 0.0284 0.219 0.03
0.65 246 -0.2293 0.2085 0.0303
0.65 258 -0.0063 0.2399 0.03
0.75 114 0.111 0.2224 0.0301
0.75 126 0.043 0.2486 0.03
0.75 138 0.3484 0.2012 0.0308
0.75 150 -0.3186 0.2432 0.0307
0.75 222 0.0444 0.2511 0.03
0.75 234 -0.1616 0.2162 0.0302
0.75 246 -0.2262 0.2559 0.0303
0.75 258 0.2497 0.2018 0.0304
0.75 270 -0.0276 0.2591 0.03
0.85 114 0.0746 0.2294 0.03
0.85 126 0.1243 0.2656 0.0301
0.85 138 0.1057 0.223 0.0301
0.85 150 0.0987 0.2631 0.0301
0.85 222 -0.0151 0.252 0.03
0.85 234 0.2247 0.2032 0.0303
0.85 246 -0.0345 0.2047 0.03
0.85 258 0.0761 0.1908 0.03
0.85 270 -0.1883 0.1952 0.0302
0.95 102 0.297 0.2401 0.0306
0.95 234 -0.2465 0.2282 0.0304
0.95 246 0.029 0.2315 0.03
0.95 258 0.0748 0.2152 0.03
0.95 270 -0.3268 0.2077 0.0307
0.95 282 -0.2366 0.2641 0.0304
0.55 258 -0.208 0.2887 0.0303
0.65 126 -0.2754 0.2823 0.0305
0.65 138 -0.0066 0.3422 0.03
0.65 222 -0.0204 0.3222 0.03
0.65 234 0.4114 0.2507 0.0311
0.65 246 -0.1207 0.273 0.0301
0.65 258 0.2128 0.2925 0.0303
0.75 114 -0.2608 0.3531 0.0305
0.75 126 -0.116 0.3108 0.0301
0.75 138 -0.3373 0.3108 0.0307
0.75 162 -0.223 0.3538 0.0303
0.75 222 0.5225 0.303 0.0318
0.75 234 0.2876 0.2686 0.0305
0.75 246 -0.3916 0.2861 0.031
0.75 258 -0.2036 0.2844 0.0303
0.75 270 -0.4006 0.3352 0.0311
0.85 138 0.1446 0.3435 0.0301
0.85 222 0.0596 0.3248 0.03
0.85 234 0.3724 0.2447 0.0309
0.85 246 -0.0828 0.2676 0.03
0.85 258 0.0459 0.272 0.03
0.85 270 -0.2539 0.2693 0.0304
0.95 102 -0.4996 0.3101 0.0316
0.95 114 0.7703 0.1925 0.0337
0.95 234 0.7046 0.1762 0.0331
0.95 246 0.2849 0.3201 0.0305
0.95 258 0.04 0.3066 0.03
0.95 270 0.8512 0.1876 0.0345