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Measurement E151M2616

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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 : 0.0245 GeV2
W : 1445 GeV
ε : 0.6444
Ebeam : 1.0539 GeV
εL: 0.0366 

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 -0.2394 0.1954 0.0304
0.25 54 0.1803 0.2299 0.0302
0.35 42 -0.0766 0.1717 0.03
0.35 54 -0.1484 0.1684 0.0301
0.35 66 0.1924 0.2343 0.0302
0.45 30 0.2389 0.1993 0.0304
0.45 42 0.0151 0.1646 0.03
0.45 54 -0.086 0.1487 0.03
0.45 66 0.0807 0.2481 0.03
0.45 222 0.1612 0.2418 0.0302
0.45 234 -0.0969 0.2259 0.0301
0.45 246 -0.3562 0.1838 0.0308
0.55 30 -0.0362 0.2475 0.03
0.55 42 0.0178 0.2048 0.03
0.55 54 0.0154 0.2106 0.03
0.55 150 -0.1413 0.2552 0.0301
0.55 162 0.1511 0.2404 0.0302
0.55 174 0.3225 0.2284 0.0307
0.55 222 0.1083 0.1859 0.0301
0.55 234 -0.0423 0.1623 0.03
0.55 246 -0.3311 0.1595 0.0307
0.55 258 -0.2118 0.1826 0.0303
0.65 138 -0.0301 0.2633 0.03
0.65 150 0.0275 0.202 0.03
0.65 162 -0.194 0.2024 0.0302
0.65 222 0.0731 0.1985 0.03
0.65 234 -0.3214 0.1806 0.0307
0.65 246 -0.2383 0.1465 0.0304
0.65 258 0.0362 0.1864 0.03
0.75 150 0.2852 0.1976 0.0305
0.75 162 0.1625 0.2134 0.0302
0.75 174 0.1595 0.223 0.0302
0.75 186 -0.2379 0.2438 0.0304
0.75 210 -0.0233 0.2646 0.03
0.75 222 -0.1026 0.1881 0.0301
0.75 234 -0.2909 0.1678 0.0306
0.75 246 -0.1358 0.1543 0.0301
0.75 258 -0.0507 0.1756 0.03
0.85 222 -0.1378 0.1918 0.0301
0.85 234 -0.0731 0.1642 0.03
0.85 246 0.1134 0.1542 0.0301
0.85 258 0.2921 0.1644 0.0306