CLAS Physics Database

Measurement E151M2793

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: 0.0273
Q2: 0.0143 GeV2
W: 1445.0 GeV
Ebeam: 1.3383 GeV
ε: 0.8069

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.45 42.0 0.3086 0.3402
0.45 222.0 0.5346 0.2448
0.45 234.0 -0.0004 0.3502
0.55 18.0 0.0009 0.3603
0.55 30.0 0.7623 0.1737
0.55 42.0 -0.5239 0.2232
0.55 138.0 0.3262 0.2862
0.55 150.0 0.2925 0.357
0.55 210.0 -0.7199 0.2567
0.55 222.0 -0.8084 0.1767
0.55 234.0 -0.3452 0.3073
0.55 246.0 -0.3382 0.2618
0.65 126.0 0.2896 0.3504
0.65 138.0 0.143 0.3613
0.65 150.0 -0.1646 0.3508
0.65 162.0 0.1214 0.3762
0.65 210.0 -0.3428 0.3078
0.65 222.0 -0.4044 0.2279
0.65 234.0 -0.0212 0.2958
0.65 246.0 -0.2949 0.3439
0.75 138.0 -0.2713 0.3546
0.75 150.0 -0.3268 0.3604
0.75 162.0 0.3323 0.4231
0.75 210.0 -0.0434 0.3455
0.75 222.0 -0.1178 0.2988
0.75 234.0 0.1774 0.2686
0.75 246.0 0.0458 0.3511
0.85 126.0 -0.7876 0.2527
0.85 210.0 -0.3695 0.3094
0.85 222.0 -0.5059 0.2472
0.85 234.0 -0.2909 0.2391
0.85 246.0 0.1185 0.3085
0.95 234.0 -0.2427 0.3829
0.35 42.0 0.3783 0.2337
0.45 42.0 0.0035 0.2428
0.55 18.0 -0.1469 0.245
0.55 30.0 0.243 0.2204
0.55 42.0 0.1144 0.2388
0.55 138.0 -0.3627 0.2218
0.55 150.0 -0.1618 0.2204
0.55 210.0 0.2126 0.2546
0.55 222.0 -0.2116 0.1804
0.55 234.0 -0.2282 0.216
0.55 246.0 -0.2945 0.1965
0.65 126.0 0.3333 0.1887
0.65 138.0 0.1268 0.1884
0.65 150.0 0.0142 0.2396
0.65 210.0 -0.0578 0.2324
0.65 222.0 -0.1314 0.1707
0.65 234.0 0.1954 0.2047
0.65 246.0 -0.1448 0.2168
0.75 138.0 0.1727 0.2637
0.75 150.0 -0.2862 0.2192
0.75 222.0 0.186 0.2186
0.75 234.0 -0.0102 0.1584
0.75 246.0 0.0064 0.2087
0.85 138.0 -0.7558 0.2066
0.85 222.0 -0.4131 0.206
0.85 234.0 0.2055 0.197
0.85 246.0 0.1551 0.2146