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Measurement E151M3242

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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 : 0.9078
Ebeam : 2.2596 GeV
εL: 0.4753 

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
0.65 90 0.4882 0.2399 0.0315
0.65 102 -0.0967 0.2555 0.0301
0.75 90 -0.1029 0.2455 0.0301
0.75 102 -0.0242 0.2519 0.03
0.75 246 -0.2191 0.2323 0.0303
0.75 258 0.5206 0.2112 0.0318
0.75 282 -0.3757 0.2309 0.0309
0.85 102 -0.1944 0.2497 0.0303
0.85 114 -0.3018 0.2252 0.0306
0.85 222 -0.2437 0.2259 0.0304
0.85 246 0.3177 0.2456 0.0307
0.85 258 -0.2774 0.2042 0.0305
0.85 270 -0.1111 0.2521 0.0301
0.85 282 0.2576 0.2096 0.0304
0.85 294 -0.109 0.209 0.0301
0.95 246 0.2158 0.2543 0.0303
0.95 282 -0.8108 0.1537 0.0341
0.95 294 -0.364 0.238 0.0309
0.55 102 -0.2953 0.249 0.0306
0.65 102 0.0725 0.2161 0.03
0.65 258 0.2664 0.2426 0.0305
0.75 90 0.2772 0.2133 0.0305
0.75 102 -0.3389 0.2012 0.0308
0.75 114 -0.262 0.2529 0.0305
0.75 246 -0.7189 0.16 0.0333
0.75 258 -0.1699 0.2403 0.0302
0.75 270 -0.1073 0.2666 0.0301
0.85 102 0.0859 0.217 0.03
0.85 210 0.5452 0.2366 0.0319
0.85 234 0.0586 0.2646 0.03
0.85 246 0.155 0.241 0.0302
0.85 258 -0.0239 0.2241 0.03
0.85 270 -0.3511 0.2273 0.0308
0.85 282 0.1381 0.2091 0.0301
0.95 282 0.1688 0.2113 0.0302
0.95 294 0.2485 0.2438 0.0304
0.95 306 0.3373 0.2412 0.0307