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Measurement E151M2629

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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 : 0.0101 GeV2
W : 1475 GeV
ε : 0.603
Ebeam : 1.0539 GeV
εL: 0.0126 

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
0.25 42 0.2302 0.2295 0.0304
0.35 30 -0.1287 0.2517 0.0301
0.35 42 -0.1386 0.1955 0.0301
0.35 54 0.0736 0.1813 0.03
0.35 66 -0.2333 0.2161 0.0304
0.45 42 0.2315 0.2121 0.0304
0.45 54 0.0669 0.1845 0.03
0.45 66 -0.1429 0.2221 0.0301
0.45 222 -0.1973 0.2055 0.0303
0.45 234 0.0009 0.2301 0.03
0.55 30 0.1034 0.2447 0.0301
0.55 42 0.1842 0.2073 0.0302
0.55 54 -0.0886 0.2654 0.0301
0.55 66 -0.1797 0.2456 0.0302
0.55 150 -0.1301 0.2541 0.0301
0.55 162 -0.1065 0.2553 0.0301
0.55 186 -0.2154 0.246 0.0303
0.55 210 -0.1071 0.2659 0.0301
0.55 222 0.1549 0.2009 0.0302
0.55 234 -0.0682 0.1735 0.03
0.55 246 -0.1571 0.1808 0.0302
0.55 258 -0.5064 0.2158 0.0317
0.65 42 -0.0376 0.2523 0.03
0.65 162 0.4054 0.248 0.0311
0.65 210 -0.205 0.2538 0.0303
0.65 222 0.1346 0.2003 0.0301
0.65 234 -0.0606 0.1778 0.03
0.65 246 -0.0521 0.2172 0.03
0.75 222 -0.0977 0.22 0.0301
0.75 234 -0.0299 0.1862 0.03
0.75 246 -0.21 0.1689 0.0303
0.85 210 -0.2824 0.268 0.0305
0.85 222 -0.3022 0.1994 0.0306
0.85 234 0.1262 0.2062 0.0301
0.85 246 0.2018 0.203 0.0303