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Measurement E151M3001

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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 : 1385 GeV
ε : 0.877
Ebeam : 1.9889 GeV
εL: 0.4592 

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 78 0.3199 0.2392 0.0307
0.65 90 -0.3346 0.2822 0.0307
0.65 102 -0.4538 0.2111 0.0313
0.65 246 0.3908 0.2318 0.031
0.65 258 -0.1633 0.2642 0.0302
0.65 270 -0.3334 0.2115 0.0307
0.75 78 0.0574 0.2728 0.03
0.75 90 -0.0637 0.255 0.03
0.75 102 0.1328 0.2116 0.0301
0.75 114 0.0904 0.2601 0.0301
0.75 234 -0.1118 0.235 0.0301
0.75 246 -0.0424 0.2453 0.03
0.75 258 0.1252 0.2247 0.0301
0.75 270 -0.2533 0.219 0.0304
0.75 282 -0.2132 0.2649 0.0303
0.85 66 0.0107 0.283 0.03
0.85 90 0.0278 0.2378 0.03
0.85 102 -0.0738 0.2376 0.03
0.85 114 0.0854 0.2341 0.03
0.85 126 0.0361 0.212 0.03
0.85 138 0.1742 0.2659 0.0302
0.85 222 -0.1874 0.2226 0.0302
0.85 234 0.4807 0.2332 0.0315
0.85 246 -0.0694 0.1851 0.03
0.85 258 -0.3796 0.1964 0.0309
0.85 270 0.2459 0.2041 0.0304
0.85 282 0.0496 0.213 0.03
0.85 294 -0.0276 0.2917 0.03
0.95 114 0.0906 0.2563 0.0301
0.95 138 0.0212 0.2693 0.03
0.95 234 0.3917 0.2363 0.031
0.95 246 -0.2671 0.2556 0.0305
0.95 258 -0.4653 0.2168 0.0314
0.95 270 0.1281 0.212 0.0301
0.95 282 -0.0146 0.2208 0.03
0.95 294 -0.3536 0.1977 0.0308