CLAS Physics Database

Measurement E151M2536

Experiment: EG4
Year: 2016

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).
Spokesperson: Xiaochao Zheng
Reaction: ep → π+n
Polarization: beam (longitudinal), target (longitudinal)
Quantity: ALU
εL: 0.1029
Q2: 0.0291 GeV2
W: 1325.0 GeV
Ebeam: 1.0539 GeV
ε: 0.82

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.15 42.0 0.083 0.2361
0.25 30.0 0.1237 0.2336
0.25 42.0 -0.1867 0.2104
0.25 54.0 -0.3037 0.2161
0.35 30.0 -0.135 0.2268
0.35 42.0 -0.1139 0.189
0.35 54.0 -0.1883 0.2331
0.45 30.0 -0.0718 0.1612
0.45 42.0 -0.017 0.1782
0.45 54.0 0.0968 0.2002
0.55 42.0 -0.0756 0.2104
0.55 54.0 -0.1098 0.2334
0.55 234.0 0.1247 0.1615
0.55 246.0 -0.0737 0.1557
0.55 258.0 -0.133 0.1433
0.55 270.0 -0.0316 0.198
0.65 138.0 0.0246 0.2235
0.65 150.0 0.5334 0.1832
0.65 162.0 0.003 0.2272
0.65 174.0 0.4756 0.2385
0.65 186.0 0.1646 0.2546
0.65 210.0 -0.3688 0.2305
0.65 222.0 -0.2772 0.1686
0.65 234.0 -0.0971 0.1408
0.65 246.0 -0.336 0.1403
0.65 258.0 -0.2605 0.1278
0.65 270.0 -0.1593 0.1675
0.75 138.0 0.1969 0.2047
0.75 150.0 0.0396 0.1779
0.75 162.0 -0.1118 0.1852
0.75 174.0 0.2195 0.1789
0.75 186.0 0.0762 0.2186
0.75 222.0 -0.0765 0.1851
0.75 234.0 -0.102 0.1461
0.75 246.0 0.3824 0.135
0.75 258.0 -0.1523 0.1354
0.75 270.0 0.0795 0.1484
0.75 282.0 -0.0201 0.2492
0.85 138.0 0.0033 0.227
0.85 150.0 0.0206 0.2016
0.85 162.0 -0.2366 0.2103
0.85 174.0 0.1099 0.2368
0.85 222.0 0.1235 0.2309
0.85 234.0 -0.3295 0.1587
0.85 246.0 -0.085 0.1261
0.85 258.0 0.0783 0.1581
0.85 270.0 -0.3027 0.1363
0.85 282.0 0.047 0.2429
0.95 138.0 -0.4413 0.2028
0.95 246.0 -0.2868 0.1978
0.95 258.0 0.1335 0.2605