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Measurement E151M3017

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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 : 0.2445 GeV2
W : 1415 GeV
ε : 0.8633
Ebeam : 1.9889 GeV
εL: 0.3982 

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
0.35 66 -0.0305 0.2705 0.03
0.35 294 -0.3552 0.2358 0.0308
0.55 102 0.6352 0.21 0.0326
0.65 90 -0.1677 0.2589 0.0302
0.65 102 -0.0687 0.2222 0.03
0.65 114 0.1669 0.2521 0.0302
0.65 246 -0.0556 0.2632 0.03
0.65 270 0.0878 0.2214 0.0301
0.75 90 0.2206 0.2332 0.0303
0.75 102 0.1645 0.2642 0.0302
0.75 114 -0.1629 0.234 0.0302
0.75 126 0.1646 0.2623 0.0302
0.75 138 0.2357 0.2795 0.0304
0.75 234 -0.5522 0.2021 0.032
0.75 246 -0.2163 0.2158 0.0303
0.75 258 -0.0738 0.2186 0.03
0.75 270 0.4032 0.217 0.0311
0.75 282 -0.1505 0.2551 0.0302
0.85 66 -0.0719 0.2592 0.03
0.85 90 -0.2662 0.2787 0.0305
0.85 102 -0.178 0.2141 0.0302
0.85 114 0.105 0.2198 0.0301
0.85 126 0.195 0.2425 0.0303
0.85 138 0.0155 0.243 0.03
0.85 222 -0.1676 0.277 0.0302
0.85 234 0.1088 0.2224 0.0301
0.85 246 -0.2804 0.2161 0.0305
0.85 258 -0.0297 0.2191 0.03
0.85 270 0.0123 0.2291 0.03
0.85 282 -0.1777 0.2092 0.0302
0.85 294 -0.3629 0.2231 0.0309
0.95 66 0.2465 0.2518 0.0304
0.95 234 -0.2954 0.229 0.0306
0.95 246 -0.1796 0.2571 0.0302
0.95 258 -0.4451 0.207 0.0313
0.95 282 -0.1695 0.2179 0.0302
0.95 294 -0.1169 0.2341 0.0301