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Measurement E151M1731

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: ALL
εL: 0.5356
Q2: 0.1435 GeV2
W: 1295.0 GeV
Ebeam: 1.9889 GeV
ε: 0.9368

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALL uncertainty syst. uncert.
0.15 306.0 0.6 0.6866 0.0471
0.25 66.0 0.5654 0.6138 0.0455
0.25 78.0 0.606 0.6572 0.0474
0.35 66.0 0.6385 0.5721 0.049
0.35 78.0 0.7482 0.558 0.0544
0.35 294.0 1.3441 0.5831 0.0868
0.45 66.0 0.5562 0.5354 0.0451
0.45 78.0 -0.3646 0.5076 0.0373
0.45 270.0 0.7325 0.7067 0.0536
0.55 66.0 0.2396 0.7016 0.0333
0.55 78.0 0.6242 0.5631 0.0483
0.55 270.0 -0.4016 0.5003 0.0386
0.55 282.0 -0.5441 0.509 0.0446
0.65 102.0 0.9288 0.6219 0.0638
0.65 258.0 0.7058 0.5312 0.0522
0.65 270.0 0.0842 0.435 0.0304
0.65 282.0 0.5296 0.4898 0.0439
0.75 78.0 -0.0861 0.715 0.0305
0.75 90.0 -1.266 0.5563 0.0824
0.75 102.0 -0.7798 0.4743 0.056
0.75 114.0 0.9122 0.4967 0.0629
0.75 126.0 0.1199 0.6517 0.0309
0.75 234.0 0.3126 0.6102 0.0355
0.75 246.0 0.1481 0.5033 0.0313
0.75 258.0 -0.2805 0.4439 0.0345
0.75 270.0 -0.475 0.4094 0.0416
0.75 282.0 0.643 0.4427 0.0492
0.75 294.0 0.0277 0.6578 0.03
0.85 78.0 0.4331 0.5808 0.0399
0.85 90.0 0.122 0.4618 0.0309
0.85 102.0 -0.2017 0.4427 0.0324
0.85 114.0 0.2257 0.3991 0.033
0.85 126.0 0.8302 0.4112 0.0586
0.85 138.0 0.6831 0.5558 0.0511
0.85 150.0 -0.0701 0.6581 0.0303
0.85 162.0 1.7982 0.4762 0.113
0.85 222.0 0.2975 0.5555 0.035
0.85 234.0 0.1926 0.5104 0.0322
0.85 246.0 -0.6507 0.4387 0.0495
0.85 258.0 0.3032 0.3993 0.0352
0.85 270.0 0.1071 0.4347 0.0307
0.85 282.0 0.5196 0.4075 0.0435
0.85 294.0 -0.2231 0.5679 0.0329
0.95 90.0 0.3502 0.4646 0.0367
0.95 102.0 0.0954 0.5259 0.0306
0.95 114.0 0.6857 0.4452 0.0513
0.95 126.0 -0.1913 0.4879 0.0322
0.95 138.0 0.7641 0.3839 0.0552
0.95 150.0 -0.1573 0.4784 0.0315
0.95 162.0 0.5805 0.5877 0.0462
0.95 174.0 0.2112 0.6026 0.0326
0.95 222.0 0.1357 0.623 0.0311
0.95 234.0 -0.872 0.5659 0.0608
0.95 246.0 0.6086 0.4904 0.0475
0.95 258.0 0.0877 0.4376 0.0305
0.95 270.0 0.0131 0.48 0.03
0.95 282.0 0.1984 0.4028 0.0323
Created in SINP MSU, CLAS Collaboration