CLAS Physics Database

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Measurement E35M1

Experiment: e1dvcs run CLAS data
Year: 2011

Experiment comment:

Beam polarization is 80%.
Spokesperson: H. Avakian
Reaction: ep → semi-inclusive
Polarization: beam
Quantity: ALUsin φh
Q2: 1.36 — 3.26 GeV2
x: 0.16 — 0.436
Ebeam: 5.776 GeV
Publication:
M. Aghasyan, H. Avakian, P. Rossi, E. De Sanctis, D. Hasch, M. Mirazita and CLAS Collaboration Precise measurements of beam spin asymmetries in semi-inclusive π0 production // Phys. Letters B 704, 397 (2011)

Measurement data
PT, [GeV] z x Q2, [GeV2] y ALUsin φh uncertainty syst. uncert.
0.138 0.507 0.16 1.36 0.786 0.0081 0.0054 0.0053
0.298 0.517 0.156 1.35 0.797 0.0331 0.0034 0.0016
0.487 0.528 0.156 1.34 0.798 0.0351 0.0043 0.0061
0.675 0.553 0.158 1.36 0.795 0.0306 0.0087 0.0048
0.87 0.513 0.154 1.34 0.8 0.0062 0.021 0.0074
0.134 0.515 0.246 1.97 0.739 0.0097 0.0051 0.0054
0.295 0.521 0.245 1.98 0.747 0.0381 0.0037 0.0033
0.49 0.516 0.245 1.97 0.745 0.0267 0.005 0.0036
0.67 0.517 0.243 1.97 0.752 0.0293 0.0098 0.0076
0.848 0.484 0.233 1.99 0.788 -0.0121 0.0386 0.0165
0.134 0.514 0.342 2.59 0.697 0.0066 0.0075 0.0032
0.294 0.509 0.343 2.55 0.685 0.032 0.0059 0.0017
0.485 0.488 0.341 2.54 0.689 0.0305 0.0081 0.0063
0.656 0.477 0.334 2.66 0.734 0.0236 0.0208 0.0068
0.136 0.491 0.449 3.29 0.676 -0.0068 0.0134 0.0106
0.291 0.478 0.446 3.21 0.661 0.0038 0.0108 0.0063
0.471 0.457 0.436 3.26 0.69 0.0128 0.0189 0.0069