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Measurement E151M2515

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: 0.15
Q2: 0.0348 GeV2
W: 1295.0 GeV
Ebeam: 1.0539 GeV
ε: 0.8461

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.25 54.0 -0.1963 0.2063
0.35 30.0 0.0139 0.2171
0.35 42.0 -0.3482 0.2082
0.45 30.0 0.4152 0.2178
0.45 42.0 0.0617 0.1785
0.45 54.0 -0.0844 0.2579
0.45 270.0 -0.0425 0.2472
0.55 246.0 -0.1332 0.1615
0.55 258.0 0.1755 0.1572
0.55 270.0 -0.0127 0.1581
0.55 282.0 -0.0047 0.2483
0.65 150.0 -0.04 0.2135
0.65 234.0 -0.0608 0.1716
0.65 246.0 -0.026 0.1469
0.65 258.0 -0.1658 0.1414
0.65 270.0 -0.0512 0.1361
0.65 282.0 0.2579 0.2131
0.75 126.0 0.1248 0.2488
0.75 138.0 -0.0993 0.1999
0.75 150.0 0.0805 0.2035
0.75 162.0 0.251 0.171
0.75 174.0 0.0721 0.2006
0.75 186.0 -0.3125 0.208
0.75 198.0 0.1283 0.2415
0.75 222.0 -0.0982 0.1979
0.75 234.0 0.2794 0.1428
0.75 246.0 -0.0766 0.127
0.75 258.0 0.0068 0.1291
0.75 270.0 0.0486 0.1335
0.75 282.0 -0.1097 0.191
0.85 126.0 -0.1591 0.2421
0.85 138.0 0.2553 0.1615
0.85 150.0 0.0623 0.1526
0.85 162.0 -0.2743 0.1615
0.85 174.0 0.1654 0.1908
0.85 186.0 -0.0238 0.1898
0.85 198.0 -0.1565 0.2167
0.85 210.0 -0.1397 0.243
0.85 222.0 -0.2299 0.2342
0.85 234.0 -0.3449 0.1449
0.85 246.0 -0.051 0.1315
0.85 258.0 0.077 0.1217
0.85 270.0 0.0481 0.1403
0.85 282.0 0.0585 0.2048
0.95 138.0 -0.0261 0.2537
0.95 150.0 0.2939 0.2468
0.95 162.0 -0.1171 0.2571
0.95 258.0 -0.1696 0.2565
Created in SINP MSU, CLAS Collaboration