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Measurement E151M2551

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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 : 1355 GeV
ε : 0.8045
Ebeam : 1.0539 GeV
εL: 0.0307 

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 -0.3635 0.2028 0.0309
0.35 54 0.1262 0.1764 0.0301
0.45 42 0.0598 0.1784 0.03
0.45 54 0.3816 0.1769 0.031
0.55 18 0.1266 0.2243 0.0301
0.55 30 -0.1291 0.1943 0.0301
0.55 42 0.0392 0.1747 0.03
0.55 54 -0.0371 0.1702 0.03
0.55 150 0.1588 0.2425 0.0302
0.55 222 -0.0022 0.2188 0.03
0.55 234 -0.0862 0.1836 0.03
0.55 246 -0.0471 0.1966 0.03
0.55 258 0.0821 0.216 0.03
0.65 30 0.2293 0.2611 0.0303
0.65 42 -0.0493 0.1963 0.03
0.65 54 -0.1461 0.2055 0.0301
0.65 138 0.0875 0.2309 0.0301
0.65 150 -0.2906 0.2183 0.0306
0.65 162 0.113 0.2212 0.0301
0.65 174 -0.049 0.2376 0.03
0.65 210 -0.061 0.2459 0.03
0.65 222 0.0914 0.191 0.0301
0.65 234 0.0156 0.153 0.03
0.65 246 -0.1242 0.1505 0.0301
0.65 258 -0.3053 0.1941 0.0306
0.75 138 0.3468 0.235 0.0308
0.75 150 0.142 0.2351 0.0301
0.75 162 -0.2426 0.2242 0.0304
0.75 174 -0.0481 0.2604 0.03
0.75 222 0.0256 0.1731 0.03
0.75 234 -0.3422 0.1583 0.0308
0.75 246 -0.4455 0.153 0.0313
0.75 258 -0.0185 0.2259 0.03
0.85 210 -0.0511 0.2167 0.03
0.85 222 0.2893 0.163 0.0306
0.85 234 -0.0556 0.158 0.03
0.85 246 0.2036 0.1717 0.0303
0.85 258 -0.0494 0.1985 0.03