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Measurement E151M3537

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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 : 0.4155 GeV2
W : 1595 GeV
ε : 0.8714
Ebeam : 2.999 GeV
εL: 0.295 

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 90 0.6076 0.234 0.0324
0.55 102 -0.3357 0.2572 0.0307
0.65 90 0.0266 0.2363 0.03
0.65 102 0.1358 0.2431 0.0301
0.65 114 -0.0413 0.2743 0.03
0.75 66 0.5675 0.1991 0.0321
0.75 78 -0.0072 0.2743 0.03
0.75 102 0.4151 0.1882 0.0311
0.75 114 0.1828 0.2657 0.0302
0.75 210 0.1367 0.2336 0.0301
0.75 222 -0.1505 0.2403 0.0302
0.75 234 -0.0778 0.2177 0.03
0.75 246 0.3222 0.2245 0.0307
0.85 54 0.6204 0.1897 0.0325
0.85 66 0.613 0.1947 0.0324
0.85 78 -0.2235 0.2712 0.0303
0.85 114 0.3165 0.2151 0.0307
0.85 210 0.0118 0.2211 0.03
0.85 222 -0.4959 0.1938 0.0316
0.85 234 -0.4312 0.2 0.0312
0.85 246 0.0533 0.1881 0.03
0.85 258 -0.0701 0.1906 0.03
0.85 270 0.093 0.2235 0.0301
0.85 282 -0.2869 0.2486 0.0305
0.95 186 -0.0991 0.2785 0.0301
0.95 210 -0.0463 0.2709 0.03
0.95 222 0.055 0.2632 0.03
0.95 234 -0.1346 0.21 0.0301
0.95 246 -0.2193 0.2205 0.0303
0.95 258 0.3462 0.2256 0.0308
0.95 270 0.1859 0.1889 0.0302
0.95 282 0.06 0.2197 0.03
0.95 294 -0.2017 0.2078 0.0303
0.95 306 -0.0454 0.2213 0.03
0.95 318 0.1369 0.2148 0.0301