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Measurement E151M2671

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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 : 0.1205 GeV2
W : 1235 GeV
ε : 0.8944
Ebeam : 1.3383 GeV
εL: 0.648 

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
0.45 282 -0.1038 0.1729 0.0309
0.45 294 -0.2865 0.2058 0.0309
0.55 270 0.0396 0.168 0.03
0.55 282 0.0865 0.1633 0.0306
0.65 258 -0.0017 0.1956 0.03
0.65 270 0.1596 0.1813 0.0302
0.65 282 -0.3143 0.2018 0.0307
0.65 294 0.1588 0.2009 0.0302
0.75 258 -0.2269 0.1976 0.0303
0.75 270 -0.2409 0.2071 0.0304
0.75 282 0.1005 0.1993 0.0301
0.75 294 -0.4628 0.2123 0.0314
0.85 102 0.1505 0.2368 0.0302
0.85 114 -0.1006 0.2316 0.0301
0.85 126 0.3177 0.1961 0.0307
0.85 138 0.0397 0.2021 0.03
0.85 150 -0.0737 0.2535 0.03
0.85 258 0.4789 0.2228 0.0315
0.85 270 -0.3685 0.219 0.0309
0.85 282 -0.3999 0.2262 0.031
0.85 294 0.0031 0.2566 0.03
0.95 114 -0.0457 0.2219 0.03
0.95 126 0.0475 0.1918 0.03
0.95 138 0.0849 0.2092 0.03
0.95 150 -0.0555 0.2291 0.03
0.95 162 -0.0375 0.2152 0.03
0.95 174 -0.1226 0.246 0.0301
0.95 186 0.5586 0.2396 0.032
0.95 210 0.0755 0.28 0.03
0.55 294 -0.1922 0.3187 0.0302
0.65 258 -0.2822 0.3073 0.0305
0.65 270 -0.1568 0.2946 0.0302
0.65 282 -0.2248 0.299 0.0303
0.65 294 -0.4193 0.341 0.0312
0.75 258 0.4127 0.2364 0.0311
0.75 270 -0.1139 0.3311 0.0301
0.75 282 -0.5811 0.2095 0.0322
0.75 294 0.1299 0.3267 0.0301
0.85 102 -0.1617 0.2339 0.0302
0.85 114 0.016 0.399 0.03
0.85 126 -0.11 0.2986 0.0301
0.85 150 -0.4289 0.3514 0.0312
0.85 258 -0.6725 0.2092 0.0329
0.85 270 0.0718 0.3352 0.03
0.85 282 0.064 0.2807 0.03
0.85 294 0.1618 0.3255 0.0302
0.95 102 0.1995 0.3453 0.0303
0.95 114 0.4503 0.2018 0.0313
0.95 126 -0.0013 0.3194 0.03
0.95 138 0.0329 0.31 0.03
0.95 150 -0.3007 0.3299 0.0306
0.95 162 -0.0651 0.3546 0.03
0.95 174 0.6542 0.1827 0.0327
0.95 186 0.111 0.358 0.0301
0.95 198 0.3347 0.3044 0.0307