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Measurement E151M2572

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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 : 0.0101 GeV2
W : 1385 GeV
ε : 0.7635
Ebeam : 1.0539 GeV
εL: 0.0247 

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 42 -0.1999 0.2482 0.0303
0.35 54 0.1208 0.2156 0.0301
0.45 42 0.0769 0.1799 0.03
0.45 54 0.0584 0.1644 0.03
0.45 222 0.1303 0.2413 0.0301
0.45 234 -0.073 0.2296 0.03
0.45 246 0.3785 0.2414 0.0309
0.55 18 -0.2939 0.2281 0.0306
0.55 30 -0.4128 0.1998 0.0311
0.55 42 -0.1402 0.151 0.0301
0.55 54 0.1194 0.182 0.0301
0.55 222 0.3891 0.1824 0.031
0.55 234 -0.2672 0.1837 0.0305
0.55 246 0.0782 0.1888 0.03
0.65 30 -0.5187 0.2208 0.0317
0.65 42 0.0267 0.2141 0.03
0.65 54 0.0967 0.1714 0.0301
0.65 138 0.3768 0.2119 0.0309
0.65 150 -0.4608 0.1814 0.0314
0.65 162 0.0919 0.202 0.0301
0.65 210 -0.3045 0.1993 0.0306
0.65 222 -0.2193 0.1671 0.0303
0.65 234 -0.0981 0.1531 0.0301
0.65 246 0.2298 0.1485 0.0304
0.75 138 -0.0065 0.2327 0.03
0.75 150 -0.1312 0.2409 0.0301
0.75 162 -0.439 0.2201 0.0313
0.75 174 0.488 0.2238 0.0315
0.75 210 0.2199 0.2554 0.0303
0.75 222 0.1265 0.1727 0.0301
0.75 234 0.1648 0.1591 0.0302
0.75 246 -0.1449 0.1615 0.0301
0.75 258 -0.3539 0.2422 0.0308
0.85 222 0.3227 0.1941 0.0307
0.85 234 0.242 0.1542 0.0304
0.85 246 -0.0033 0.169 0.03
0.85 258 -0.1953 0.226 0.0303