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Measurement E151M2975

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: 0.1185
Q2: 0.0348 GeV2
W: 1355.0 GeV
Ebeam: 1.9889 GeV
ε: 0.9487

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.25 66.0 0.007 0.2595
0.25 306.0 0.0085 0.2709
0.35 66.0 -0.0906 0.2472
0.35 78.0 0.2645 0.2191
0.35 294.0 -0.3575 0.2066
0.35 306.0 0.1956 0.2366
0.45 66.0 0.2751 0.2437
0.45 78.0 -0.1376 0.2161
0.45 90.0 0.0372 0.2132
0.45 270.0 0.1774 0.2514
0.45 282.0 0.1962 0.2505
0.45 294.0 0.035 0.2026
0.45 306.0 -0.0055 0.2255
0.55 78.0 -0.1819 0.1764
0.55 90.0 -0.0291 0.1871
0.55 246.0 0.0163 0.2797
0.55 258.0 0.2068 0.2727
0.55 270.0 0.6631 0.2066
0.55 282.0 -0.1839 0.2625
0.55 294.0 -0.2774 0.2078
0.65 78.0 0.1539 0.1972
0.65 90.0 0.1942 0.213
0.65 114.0 -0.3289 0.2376
0.65 126.0 0.194 0.2393
0.65 138.0 0.0077 0.2337
0.65 222.0 0.348 0.207
0.65 234.0 0.0326 0.2088
0.65 246.0 -0.0602 0.2018
0.65 258.0 -0.4688 0.1924
0.65 282.0 -0.6779 0.1957
0.75 102.0 -0.2542 0.2734
0.75 114.0 0.1181 0.1878
0.75 126.0 0.0142 0.2224
0.75 138.0 0.3112 0.1686
0.75 150.0 0.0207 0.2464
0.75 162.0 -0.0901 0.2592
0.75 222.0 0.1462 0.1878
0.75 234.0 -0.052 0.185
0.75 246.0 0.0275 0.1434
0.75 258.0 -0.0859 0.1781
0.85 114.0 0.2281 0.2576
0.85 126.0 -0.0466 0.2259
0.85 138.0 -0.1977 0.2045
0.85 150.0 -0.4208 0.2175
0.85 162.0 -0.1805 0.279
0.85 210.0 -0.3271 0.2403
0.85 222.0 0.0561 0.2015
0.85 234.0 0.1711 0.165
0.85 246.0 0.08 0.1458
0.85 258.0 0.096 0.1819
0.95 246.0 -0.446 0.2514
Created in SINP MSU, CLAS Collaboration