CLAS Physics Database

JLab | Search | Overview | Login | Edit | Register

Measurement E151M3089

You are not logged in.

Experiment: EG4, 2016

Spokespersons: Xiaochao Zheng

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).

No publications available for this experiment

Quantity measured: ALU,
Beam asymmetry.
Beam: e, polarization: longitudinal
Target: p (Z=1, A=1), polarization: longitudinal
Final state: π+n, polarization: none

Q2 : 0.1205 GeV2
W : 1565 GeV
ε : 0.821
Ebeam : 1.9889 GeV
εL: 0.1221 

Select data slice:
cos(θπ+) =
Observable quantity measured (Y axis): ALU,
Plot measurement data

Parameter (X axis): φ(π+), degrees

Click here to get data in text file, delimited with tabs.

Measured data:

cos(θπ+) φ(π+),
degrees 		ALU Stat. error Syst. error
0.35 66 -0.1605 0.274 0.0302
0.35 270 0.0152 0.2847 0.03
0.45 282 -0.2415 0.2273 0.0304
0.55 138 0.1795 0.2582 0.0302
0.55 222 0.089 0.2515 0.0301
0.55 234 0.3211 0.2616 0.0307
0.65 114 0.573 0.197 0.0321
0.65 126 -0.3101 0.2238 0.0306
0.65 138 0.4467 0.2337 0.0313
0.65 210 0.0132 0.2806 0.03
0.65 222 -0.254 0.2702 0.0304
0.65 234 0.1528 0.2894 0.0302
0.75 114 -0.2831 0.2047 0.0305
0.75 126 -0.1141 0.2197 0.0301
0.75 138 0.0661 0.2624 0.03
0.75 198 -0.4094 0.2399 0.0311
0.75 210 0.2446 0.2012 0.0304
0.75 222 0.3618 0.2189 0.0309
0.75 234 0.1207 0.206 0.0301
0.75 246 0.0017 0.2342 0.03
0.75 282 -0.1228 0.2736 0.0301
0.85 90 0.0344 0.2327 0.03
0.85 102 0.715 0.2205 0.0332
0.85 138 -0.2144 0.2362 0.0303
0.85 210 -0.0842 0.2371 0.03
0.85 222 -0.1989 0.1973 0.0303
0.85 234 0.249 0.1948 0.0304
0.85 246 0.0402 0.2072 0.03
0.95 102 0.397 0.2496 0.031
0.95 210 -0.355 0.259 0.0308
0.95 234 0.1347 0.2549 0.0301
0.95 246 -0.1893 0.241 0.0302