Showing 3 of 3 results
We report results for the virtual photon asymmetry $A_1$ on the nucleon from new Jefferson Lab measurements. The experiment, which used the CEBAF Large Acceptance Spectrometer and longitudinally polarized proton ($^{15}$NH$_3$) and deuteron ($^{15}$ND$_3$) targets, collected data with a longitudinally polarized electron beam at energies between 1.6 GeV and 5.7 GeV. In the present paper, we concentrate on our results for $A_1(x,Q^2)$ and the related ratio $g_1/F_1(x,Q^2)$ in the resonance and the deep inelastic regions for our lowest and highest beam energies, covering a range in momentum transfer $Q^2$ from 0.05 to 5.0 GeV$^2$ and in final-state invariant mass $W$ up to about 3 GeV. Our data show detailed structure in the resonance region, which leads to a strong $Q^2$--dependence of $A_1(x,Q^2)$ for $W$ below 2 GeV. At higher $W$, a smooth approach to the scaling limit, established by earlier experiments, can be seen, but $A_1(x,Q^2)$ is not strictly $Q^2$--independent. We add significantly to the world data set at high $x$, up to $x = 0.6$. Our data exceed the SU(6)-symmetric quark model expectation for both the proton and the deuteron while being consistent with a negative $d$-quark polarization up to our highest $x$. This data setshould improve next-to-leading order (NLO) pQCD fits of the parton polarization distributions.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.1300 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.1500 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.1700 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.1900 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.2100 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.2300 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.2500 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.2700 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.2900 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.3100 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.3300 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.3500 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.3700 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.3900 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.4100 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.4300 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.4500 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.4700 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.4900 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.5100 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.5300 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.5500 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.5700 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.5900 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.6100 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.6300 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.6500 GeV.
A1 and g1/F1 for the P target at incident energy 1.6000 GeV and W = 1.1100 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 1.1750 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 1.2250 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 1.2750 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 1.3250 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 1.3750 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 1.4250 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 1.4750 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 1.5250 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 1.5750 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 1.6250 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 1.6750 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 1.7250 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 1.7750 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 1.8250 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 1.8750 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 1.9250 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 1.9750 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 2.0250 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 2.0750 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 2.1250 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 2.1750 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 2.2250 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 2.2750 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 2.3250 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 2.3750 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 2.4250 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 2.4750 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 2.5250 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 2.5750 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 2.6250 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 2.6750 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 2.7250 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 2.7750 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 2.8250 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 2.8750 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 2.9250 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 2.9750 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 3.0250 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 3.0750 GeV.
A1 and g1/F1 for the P target at incident energy 5.7000 GeV and W = 1.1250 GeV.
The ep -> e'pi^+n reaction was studied in the first and second nucleon resonance regions in the 0.25 GeV^2 < Q^2 < 0.65 GeV^2 range using the CLAS detector at Thomas Jefferson National Accelerator Facility. For the first time the absolute cross sections were measured covering nearly the full angular range in the hadronic center-of-mass frame. The structure functions sigma_TL, sigma_TT and the linear combination sigma_T+epsilon*sigma_L were extracted by fitting the phi-dependence of the measured cross sections, and were compared to the MAID and Sato-Lee models.
Structure functions for Q**2 = 0.30 GeV**2 and W = 1.11 GeV.
Structure functions for Q**2 = 0.30 GeV**2 and W = 1.13 GeV.
Structure functions for Q**2 = 0.30 GeV**2 and W = 1.15 GeV.
Structure functions for Q**2 = 0.30 GeV**2 and W = 1.17 GeV.
Structure functions for Q**2 = 0.30 GeV**2 and W = 1.19 GeV.
Structure functions for Q**2 = 0.30 GeV**2 and W = 1.21 GeV.
Structure functions for Q**2 = 0.30 GeV**2 and W = 1.23 GeV.
Structure functions for Q**2 = 0.30 GeV**2 and W = 1.25 GeV.
Structure functions for Q**2 = 0.30 GeV**2 and W = 1.27 GeV.
Structure functions for Q**2 = 0.30 GeV**2 and W = 1.29 GeV.
Structure functions for Q**2 = 0.30 GeV**2 and W = 1.31 GeV.
Structure functions for Q**2 = 0.30 GeV**2 and W = 1.33 GeV.
Structure functions for Q**2 = 0.30 GeV**2 and W = 1.35 GeV.
Structure functions for Q**2 = 0.30 GeV**2 and W = 1.37 GeV.
Structure functions for Q**2 = 0.30 GeV**2 and W = 1.39 GeV.
Structure functions for Q**2 = 0.30 GeV**2 and W = 1.41 GeV.
Structure functions for Q**2 = 0.30 GeV**2 and W = 1.43 GeV.
Structure functions for Q**2 = 0.30 GeV**2 and W = 1.45 GeV.
Structure functions for Q**2 = 0.30 GeV**2 and W = 1.47 GeV.
Structure functions for Q**2 = 0.30 GeV**2 and W = 1.49 GeV.
Structure functions for Q**2 = 0.30 GeV**2 and W = 1.51 GeV.
Structure functions for Q**2 = 0.30 GeV**2 and W = 1.53 GeV.
Structure functions for Q**2 = 0.30 GeV**2 and W = 1.55 GeV.
Structure functions for Q**2 = 0.30 GeV**2 and W = 1.57 GeV.
Structure functions for Q**2 = 0.40 GeV**2 and W = 1.11 GeV.
Structure functions for Q**2 = 0.40 GeV**2 and W = 1.13 GeV.
Structure functions for Q**2 = 0.40 GeV**2 and W = 1.15 GeV.
Structure functions for Q**2 = 0.40 GeV**2 and W = 1.17 GeV.
Structure functions for Q**2 = 0.40 GeV**2 and W = 1.19 GeV.
Structure functions for Q**2 = 0.40 GeV**2 and W = 1.21 GeV.
Structure functions for Q**2 = 0.40 GeV**2 and W = 1.23 GeV.
Structure functions for Q**2 = 0.40 GeV**2 and W = 1.25 GeV.
Structure functions for Q**2 = 0.40 GeV**2 and W = 1.27 GeV.
Structure functions for Q**2 = 0.40 GeV**2 and W = 1.29 GeV.
Structure functions for Q**2 = 0.40 GeV**2 and W = 1.31 GeV.
Structure functions for Q**2 = 0.40 GeV**2 and W = 1.33 GeV.
Structure functions for Q**2 = 0.40 GeV**2 and W = 1.35 GeV.
Structure functions for Q**2 = 0.40 GeV**2 and W = 1.37 GeV.
Structure functions for Q**2 = 0.40 GeV**2 and W = 1.39 GeV.
Structure functions for Q**2 = 0.40 GeV**2 and W = 1.41 GeV.
Structure functions for Q**2 = 0.40 GeV**2 and W = 1.43 GeV.
Structure functions for Q**2 = 0.40 GeV**2 and W = 1.45 GeV.
Structure functions for Q**2 = 0.40 GeV**2 and W = 1.47 GeV.
Structure functions for Q**2 = 0.40 GeV**2 and W = 1.49 GeV.
Structure functions for Q**2 = 0.40 GeV**2 and W = 1.51 GeV.
Structure functions for Q**2 = 0.40 GeV**2 and W = 1.53 GeV.
Structure functions for Q**2 = 0.40 GeV**2 and W = 1.55 GeV.
Structure functions for Q**2 = 0.50 GeV**2 and W = 1.11 GeV.
Structure functions for Q**2 = 0.50 GeV**2 and W = 1.13 GeV.
Structure functions for Q**2 = 0.50 GeV**2 and W = 1.15 GeV.
Structure functions for Q**2 = 0.50 GeV**2 and W = 1.17 GeV.
Structure functions for Q**2 = 0.50 GeV**2 and W = 1.19 GeV.
Structure functions for Q**2 = 0.50 GeV**2 and W = 1.21 GeV.
Structure functions for Q**2 = 0.50 GeV**2 and W = 1.23 GeV.
Structure functions for Q**2 = 0.50 GeV**2 and W = 1.25 GeV.
Structure functions for Q**2 = 0.50 GeV**2 and W = 1.27 GeV.
Structure functions for Q**2 = 0.50 GeV**2 and W = 1.29 GeV.
Structure functions for Q**2 = 0.50 GeV**2 and W = 1.31 GeV.
Structure functions for Q**2 = 0.50 GeV**2 and W = 1.33 GeV.
Structure functions for Q**2 = 0.50 GeV**2 and W = 1.35 GeV.
Structure functions for Q**2 = 0.50 GeV**2 and W = 1.37 GeV.
Structure functions for Q**2 = 0.50 GeV**2 and W = 1.39 GeV.
Structure functions for Q**2 = 0.50 GeV**2 and W = 1.41 GeV.
Structure functions for Q**2 = 0.50 GeV**2 and W = 1.43 GeV.
Structure functions for Q**2 = 0.50 GeV**2 and W = 1.45 GeV.
Structure functions for Q**2 = 0.50 GeV**2 and W = 1.47 GeV.
Structure functions for Q**2 = 0.50 GeV**2 and W = 1.49 GeV.
Structure functions for Q**2 = 0.50 GeV**2 and W = 1.51 GeV.
Structure functions for Q**2 = 0.60 GeV**2 and W = 1.11 GeV.
Structure functions for Q**2 = 0.60 GeV**2 and W = 1.13 GeV.
Structure functions for Q**2 = 0.60 GeV**2 and W = 1.15 GeV.
Structure functions for Q**2 = 0.60 GeV**2 and W = 1.17 GeV.
Structure functions for Q**2 = 0.60 GeV**2 and W = 1.19 GeV.
Structure functions for Q**2 = 0.60 GeV**2 and W = 1.21 GeV.
Structure functions for Q**2 = 0.60 GeV**2 and W = 1.23 GeV.
Structure functions for Q**2 = 0.60 GeV**2 and W = 1.25 GeV.
Structure functions for Q**2 = 0.60 GeV**2 and W = 1.27 GeV.
Structure functions for Q**2 = 0.60 GeV**2 and W = 1.29 GeV.
Structure functions for Q**2 = 0.60 GeV**2 and W = 1.31 GeV.
Structure functions for Q**2 = 0.60 GeV**2 and W = 1.33 GeV.
Structure functions for Q**2 = 0.60 GeV**2 and W = 1.35 GeV.
Structure functions for Q**2 = 0.60 GeV**2 and W = 1.37 GeV.
Structure functions for Q**2 = 0.60 GeV**2 and W = 1.39 GeV.
Structure functions for Q**2 = 0.60 GeV**2 and W = 1.41 GeV.
Cross sections for W = 1.11 GeV**2 and THETA = 7.5 deg.
Cross sections for W = 1.11 GeV**2 and THETA = 22.5 deg.
Cross sections for W = 1.11 GeV**2 and THETA = 37.5 deg.
Cross sections for W = 1.11 GeV**2 and THETA = 52.5 deg.
Cross sections for W = 1.11 GeV**2 and THETA = 67.5 deg.
Cross sections for W = 1.11 GeV**2 and THETA = 82.5 deg.
Cross sections for W = 1.11 GeV**2 and THETA = 97.5 deg.
Cross sections for W = 1.11 GeV**2 and THETA = 112.5 deg.
Cross sections for W = 1.11 GeV**2 and THETA = 127.5 deg.
Cross sections for W = 1.13 GeV**2 and THETA = 7.5 deg.
Cross sections for W = 1.13 GeV**2 and THETA = 22.5 deg.
Cross sections for W = 1.13 GeV**2 and THETA = 37.5 deg.
Cross sections for W = 1.13 GeV**2 and THETA = 52.5 deg.
Cross sections for W = 1.13 GeV**2 and THETA = 67.5 deg.
Cross sections for W = 1.13 GeV**2 and THETA = 82.5 deg.
Cross sections for W = 1.13 GeV**2 and THETA = 97.5 deg.
Cross sections for W = 1.13 GeV**2 and THETA = 112.5 deg.
Cross sections for W = 1.13 GeV**2 and THETA = 127.5 deg.
Cross sections for W = 1.13 GeV**2 and THETA = 142.5 deg.
Cross sections for W = 1.15 GeV**2 and THETA = 7.5 deg.
Cross sections for W = 1.15 GeV**2 and THETA = 22.5 deg.
Cross sections for W = 1.15 GeV**2 and THETA = 37.5 deg.
Cross sections for W = 1.15 GeV**2 and THETA = 52.5 deg.
Cross sections for W = 1.15 GeV**2 and THETA = 67.5 deg.
Cross sections for W = 1.15 GeV**2 and THETA = 82.5 deg.
Cross sections for W = 1.15 GeV**2 and THETA = 97.5 deg.
Cross sections for W = 1.15 GeV**2 and THETA = 112.5 deg.
Cross sections for W = 1.15 GeV**2 and THETA = 127.5 deg.
Cross sections for W = 1.15 GeV**2 and THETA = 142.5 deg.
Cross sections for W = 1.15 GeV**2 and THETA = 157.5 deg.
Cross sections for W = 1.17 GeV**2 and THETA = 7.5 deg.
Cross sections for W = 1.17 GeV**2 and THETA = 22.5 deg.
Cross sections for W = 1.17 GeV**2 and THETA = 37.5 deg.
Cross sections for W = 1.17 GeV**2 and THETA = 52.5 deg.
Cross sections for W = 1.17 GeV**2 and THETA = 67.5 deg.
Cross sections for W = 1.17 GeV**2 and THETA = 82.5 deg.
Cross sections for W = 1.17 GeV**2 and THETA = 97.5 deg.
Cross sections for W = 1.17 GeV**2 and THETA = 112.5 deg.
Cross sections for W = 1.17 GeV**2 and THETA = 127.5 deg.
Cross sections for W = 1.17 GeV**2 and THETA = 142.5 deg.
Cross sections for W = 1.17 GeV**2 and THETA = 157.5 deg.
Cross sections for W = 1.19 GeV**2 and THETA = 7.5 deg.
Cross sections for W = 1.19 GeV**2 and THETA = 22.5 deg.
Cross sections for W = 1.19 GeV**2 and THETA = 37.5 deg.
Cross sections for W = 1.19 GeV**2 and THETA = 52.5 deg.
Cross sections for W = 1.19 GeV**2 and THETA = 67.5 deg.
Cross sections for W = 1.19 GeV**2 and THETA = 82.5 deg.
Cross sections for W = 1.19 GeV**2 and THETA = 97.5 deg.
Cross sections for W = 1.19 GeV**2 and THETA = 112.5 deg.
Cross sections for W = 1.19 GeV**2 and THETA = 127.5 deg.
Cross sections for W = 1.19 GeV**2 and THETA = 142.5 deg.
Cross sections for W = 1.19 GeV**2 and THETA = 157.5 deg.
Cross sections for W = 1.21 GeV**2 and THETA = 7.5 deg.
Cross sections for W = 1.21 GeV**2 and THETA = 22.5 deg.
Cross sections for W = 1.21 GeV**2 and THETA = 37.5 deg.
Cross sections for W = 1.21 GeV**2 and THETA = 52.5 deg.
Cross sections for W = 1.21 GeV**2 and THETA = 67.5 deg.
Cross sections for W = 1.21 GeV**2 and THETA = 82.5 deg.
Cross sections for W = 1.21 GeV**2 and THETA = 97.5 deg.
Cross sections for W = 1.21 GeV**2 and THETA = 112.5 deg.
Cross sections for W = 1.21 GeV**2 and THETA = 127.5 deg.
Cross sections for W = 1.21 GeV**2 and THETA = 142.5 deg.
Cross sections for W = 1.21 GeV**2 and THETA = 157.5 deg.
Cross sections for W = 1.23 GeV**2 and THETA = 7.5 deg.
Cross sections for W = 1.23 GeV**2 and THETA = 22.5 deg.
Cross sections for W = 1.23 GeV**2 and THETA = 37.5 deg.
Cross sections for W = 1.23 GeV**2 and THETA = 52.5 deg.
Cross sections for W = 1.23 GeV**2 and THETA = 67.5 deg.
Cross sections for W = 1.23 GeV**2 and THETA = 82.5 deg.
Cross sections for W = 1.23 GeV**2 and THETA = 97.5 deg.
Cross sections for W = 1.23 GeV**2 and THETA = 112.5 deg.
Cross sections for W = 1.23 GeV**2 and THETA = 127.5 deg.
Cross sections for W = 1.23 GeV**2 and THETA = 142.5 deg.
Cross sections for W = 1.23 GeV**2 and THETA = 157.5 deg.
Cross sections for W = 1.25 GeV**2 and THETA = 7.5 deg.
Cross sections for W = 1.25 GeV**2 and THETA = 22.5 deg.
Cross sections for W = 1.25 GeV**2 and THETA = 37.5 deg.
Cross sections for W = 1.25 GeV**2 and THETA = 52.5 deg.
Cross sections for W = 1.25 GeV**2 and THETA = 67.5 deg.
Cross sections for W = 1.25 GeV**2 and THETA = 82.5 deg.
Cross sections for W = 1.25 GeV**2 and THETA = 97.5 deg.
Cross sections for W = 1.25 GeV**2 and THETA = 112.5 deg.
Cross sections for W = 1.25 GeV**2 and THETA = 127.5 deg.
Cross sections for W = 1.25 GeV**2 and THETA = 142.5 deg.
Cross sections for W = 1.25 GeV**2 and THETA = 157.5 deg.
Cross sections for W = 1.27 GeV**2 and THETA = 7.5 deg.
Cross sections for W = 1.27 GeV**2 and THETA = 22.5 deg.
Cross sections for W = 1.27 GeV**2 and THETA = 37.5 deg.
Cross sections for W = 1.27 GeV**2 and THETA = 52.5 deg.
Cross sections for W = 1.27 GeV**2 and THETA = 67.5 deg.
Cross sections for W = 1.27 GeV**2 and THETA = 82.5 deg.
Cross sections for W = 1.27 GeV**2 and THETA = 97.5 deg.
Cross sections for W = 1.27 GeV**2 and THETA = 112.5 deg.
Cross sections for W = 1.27 GeV**2 and THETA = 127.5 deg.
Cross sections for W = 1.27 GeV**2 and THETA = 142.5 deg.
Cross sections for W = 1.27 GeV**2 and THETA = 157.5 deg.
Cross sections for W = 1.29 GeV**2 and THETA = 7.5 deg.
Cross sections for W = 1.29 GeV**2 and THETA = 22.5 deg.
Cross sections for W = 1.29 GeV**2 and THETA = 37.5 deg.
Cross sections for W = 1.29 GeV**2 and THETA = 52.5 deg.
Cross sections for W = 1.29 GeV**2 and THETA = 67.5 deg.
Cross sections for W = 1.29 GeV**2 and THETA = 82.5 deg.
Cross sections for W = 1.29 GeV**2 and THETA = 97.5 deg.
Cross sections for W = 1.29 GeV**2 and THETA = 112.5 deg.
Cross sections for W = 1.29 GeV**2 and THETA = 127.5 deg.
Cross sections for W = 1.29 GeV**2 and THETA = 142.5 deg.
Cross sections for W = 1.29 GeV**2 and THETA = 157.5 deg.
Cross sections for W = 1.31 GeV**2 and THETA = 7.5 deg.
Cross sections for W = 1.31 GeV**2 and THETA = 22.5 deg.
Cross sections for W = 1.31 GeV**2 and THETA = 37.5 deg.
Cross sections for W = 1.31 GeV**2 and THETA = 52.5 deg.
Cross sections for W = 1.31 GeV**2 and THETA = 67.5 deg.
Cross sections for W = 1.31 GeV**2 and THETA = 82.5 deg.
Cross sections for W = 1.31 GeV**2 and THETA = 97.5 deg.
Cross sections for W = 1.31 GeV**2 and THETA = 112.5 deg.
Cross sections for W = 1.31 GeV**2 and THETA = 127.5 deg.
Cross sections for W = 1.31 GeV**2 and THETA = 142.5 deg.
Cross sections for W = 1.31 GeV**2 and THETA = 157.5 deg.
Cross sections for W = 1.33 GeV**2 and THETA = 7.5 deg.
Cross sections for W = 1.33 GeV**2 and THETA = 22.5 deg.
Cross sections for W = 1.33 GeV**2 and THETA = 37.5 deg.
Cross sections for W = 1.33 GeV**2 and THETA = 52.5 deg.
Cross sections for W = 1.33 GeV**2 and THETA = 67.5 deg.
Cross sections for W = 1.33 GeV**2 and THETA = 82.5 deg.
Cross sections for W = 1.33 GeV**2 and THETA = 97.5 deg.
Cross sections for W = 1.33 GeV**2 and THETA = 112.5 deg.
Cross sections for W = 1.33 GeV**2 and THETA = 127.5 deg.
Cross sections for W = 1.33 GeV**2 and THETA = 142.5 deg.
Cross sections for W = 1.33 GeV**2 and THETA = 157.5 deg.
Cross sections for W = 1.35 GeV**2 and THETA = 7.5 deg.
Cross sections for W = 1.35 GeV**2 and THETA = 22.5 deg.
Cross sections for W = 1.35 GeV**2 and THETA = 37.5 deg.
Cross sections for W = 1.35 GeV**2 and THETA = 52.5 deg.
Cross sections for W = 1.35 GeV**2 and THETA = 67.5 deg.
Cross sections for W = 1.35 GeV**2 and THETA = 82.5 deg.
Cross sections for W = 1.35 GeV**2 and THETA = 97.5 deg.
Cross sections for W = 1.35 GeV**2 and THETA = 112.5 deg.
Cross sections for W = 1.35 GeV**2 and THETA = 127.5 deg.
Cross sections for W = 1.35 GeV**2 and THETA = 142.5 deg.
Cross sections for W = 1.35 GeV**2 and THETA = 157.5 deg.
Cross sections for W = 1.37 GeV**2 and THETA = 7.5 deg.
Cross sections for W = 1.37 GeV**2 and THETA = 22.5 deg.
Cross sections for W = 1.37 GeV**2 and THETA = 37.5 deg.
Cross sections for W = 1.37 GeV**2 and THETA = 52.5 deg.
Cross sections for W = 1.37 GeV**2 and THETA = 67.5 deg.
Cross sections for W = 1.37 GeV**2 and THETA = 82.5 deg.
Cross sections for W = 1.37 GeV**2 and THETA = 97.5 deg.
Cross sections for W = 1.37 GeV**2 and THETA = 112.5 deg.
Cross sections for W = 1.37 GeV**2 and THETA = 127.5 deg.
Cross sections for W = 1.37 GeV**2 and THETA = 142.5 deg.
Cross sections for W = 1.37 GeV**2 and THETA = 157.5 deg.
Cross sections for W = 1.39 GeV**2 and THETA = 7.5 deg.
Cross sections for W = 1.39 GeV**2 and THETA = 22.5 deg.
Cross sections for W = 1.39 GeV**2 and THETA = 37.5 deg.
Cross sections for W = 1.39 GeV**2 and THETA = 52.5 deg.
Cross sections for W = 1.39 GeV**2 and THETA = 67.5 deg.
Cross sections for W = 1.39 GeV**2 and THETA = 82.5 deg.
Cross sections for W = 1.39 GeV**2 and THETA = 97.5 deg.
Cross sections for W = 1.39 GeV**2 and THETA = 112.5 deg.
Cross sections for W = 1.39 GeV**2 and THETA = 127.5 deg.
Cross sections for W = 1.39 GeV**2 and THETA = 142.5 deg.
Cross sections for W = 1.39 GeV**2 and THETA = 157.5 deg.
Cross sections for W = 1.41 GeV**2 and THETA = 7.5 deg.
Cross sections for W = 1.41 GeV**2 and THETA = 22.5 deg.
Cross sections for W = 1.41 GeV**2 and THETA = 37.5 deg.
Cross sections for W = 1.41 GeV**2 and THETA = 52.5 deg.
Cross sections for W = 1.41 GeV**2 and THETA = 67.5 deg.
Cross sections for W = 1.41 GeV**2 and THETA = 82.5 deg.
Cross sections for W = 1.41 GeV**2 and THETA = 97.5 deg.
Cross sections for W = 1.41 GeV**2 and THETA = 112.5 deg.
Cross sections for W = 1.41 GeV**2 and THETA = 127.5 deg.
Cross sections for W = 1.41 GeV**2 and THETA = 142.5 deg.
Cross sections for W = 1.41 GeV**2 and THETA = 157.5 deg.
Cross sections for W = 1.43 GeV**2 and THETA = 7.5 deg.
Cross sections for W = 1.43 GeV**2 and THETA = 22.5 deg.
Cross sections for W = 1.43 GeV**2 and THETA = 37.5 deg.
Cross sections for W = 1.43 GeV**2 and THETA = 52.5 deg.
Cross sections for W = 1.43 GeV**2 and THETA = 67.5 deg.
Cross sections for W = 1.43 GeV**2 and THETA = 82.5 deg.
Cross sections for W = 1.43 GeV**2 and THETA = 97.5 deg.
Cross sections for W = 1.43 GeV**2 and THETA = 112.5 deg.
Cross sections for W = 1.43 GeV**2 and THETA = 127.5 deg.
Cross sections for W = 1.43 GeV**2 and THETA = 142.5 deg.
Cross sections for W = 1.43 GeV**2 and THETA = 157.5 deg.
Cross sections for W = 1.45 GeV**2 and THETA = 7.5 deg.
Cross sections for W = 1.45 GeV**2 and THETA = 22.5 deg.
Cross sections for W = 1.45 GeV**2 and THETA = 37.5 deg.
Cross sections for W = 1.45 GeV**2 and THETA = 52.5 deg.
Cross sections for W = 1.45 GeV**2 and THETA = 67.5 deg.
Cross sections for W = 1.45 GeV**2 and THETA = 82.5 deg.
Cross sections for W = 1.45 GeV**2 and THETA = 97.5 deg.
Cross sections for W = 1.45 GeV**2 and THETA = 112.5 deg.
Cross sections for W = 1.45 GeV**2 and THETA = 127.5 deg.
Cross sections for W = 1.45 GeV**2 and THETA = 142.5 deg.
Cross sections for W = 1.45 GeV**2 and THETA = 157.5 deg.
Cross sections for W = 1.47 GeV**2 and THETA = 7.5 deg.
Cross sections for W = 1.47 GeV**2 and THETA = 22.5 deg.
Cross sections for W = 1.47 GeV**2 and THETA = 37.5 deg.
Cross sections for W = 1.47 GeV**2 and THETA = 52.5 deg.
Cross sections for W = 1.47 GeV**2 and THETA = 67.5 deg.
Cross sections for W = 1.47 GeV**2 and THETA = 82.5 deg.
Cross sections for W = 1.47 GeV**2 and THETA = 97.5 deg.
Cross sections for W = 1.47 GeV**2 and THETA = 112.5 deg.
Cross sections for W = 1.47 GeV**2 and THETA = 127.5 deg.
Cross sections for W = 1.47 GeV**2 and THETA = 142.5 deg.
Cross sections for W = 1.47 GeV**2 and THETA = 157.5 deg.
Cross sections for W = 1.49 GeV**2 and THETA = 7.5 deg.
Cross sections for W = 1.49 GeV**2 and THETA = 22.5 deg.
Cross sections for W = 1.49 GeV**2 and THETA = 37.5 deg.
Cross sections for W = 1.49 GeV**2 and THETA = 52.5 deg.
Cross sections for W = 1.49 GeV**2 and THETA = 67.5 deg.
Cross sections for W = 1.49 GeV**2 and THETA = 82.5 deg.
Cross sections for W = 1.49 GeV**2 and THETA = 97.5 deg.
Cross sections for W = 1.49 GeV**2 and THETA = 112.5 deg.
Cross sections for W = 1.49 GeV**2 and THETA = 127.5 deg.
Cross sections for W = 1.49 GeV**2 and THETA = 142.5 deg.
Cross sections for W = 1.49 GeV**2 and THETA = 157.5 deg.
Cross sections for W = 1.51 GeV**2 and THETA = 7.5 deg.
Cross sections for W = 1.51 GeV**2 and THETA = 22.5 deg.
Cross sections for W = 1.51 GeV**2 and THETA = 37.5 deg.
Cross sections for W = 1.51 GeV**2 and THETA = 52.5 deg.
Cross sections for W = 1.51 GeV**2 and THETA = 67.5 deg.
Cross sections for W = 1.51 GeV**2 and THETA = 82.5 deg.
Cross sections for W = 1.51 GeV**2 and THETA = 97.5 deg.
Cross sections for W = 1.51 GeV**2 and THETA = 112.5 deg.
Cross sections for W = 1.51 GeV**2 and THETA = 127.5 deg.
Cross sections for W = 1.51 GeV**2 and THETA = 142.5 deg.
Cross sections for W = 1.51 GeV**2 and THETA = 157.5 deg.
Cross sections for W = 1.53 GeV**2 and THETA = 7.5 deg.
Cross sections for W = 1.53 GeV**2 and THETA = 22.5 deg.
Cross sections for W = 1.53 GeV**2 and THETA = 37.5 deg.
Cross sections for W = 1.53 GeV**2 and THETA = 52.5 deg.
Cross sections for W = 1.53 GeV**2 and THETA = 67.5 deg.
Cross sections for W = 1.53 GeV**2 and THETA = 82.5 deg.
Cross sections for W = 1.53 GeV**2 and THETA = 97.5 deg.
Cross sections for W = 1.53 GeV**2 and THETA = 112.5 deg.
Cross sections for W = 1.53 GeV**2 and THETA = 127.5 deg.
Cross sections for W = 1.53 GeV**2 and THETA = 142.5 deg.
Cross sections for W = 1.53 GeV**2 and THETA = 157.5 deg.
Cross sections for W = 1.55 GeV**2 and THETA = 7.5 deg.
Cross sections for W = 1.55 GeV**2 and THETA = 22.5 deg.
Cross sections for W = 1.55 GeV**2 and THETA = 37.5 deg.
Cross sections for W = 1.55 GeV**2 and THETA = 52.5 deg.
Cross sections for W = 1.55 GeV**2 and THETA = 67.5 deg.
Cross sections for W = 1.55 GeV**2 and THETA = 82.5 deg.
Cross sections for W = 1.55 GeV**2 and THETA = 97.5 deg.
Cross sections for W = 1.55 GeV**2 and THETA = 112.5 deg.
Cross sections for W = 1.55 GeV**2 and THETA = 127.5 deg.
Cross sections for W = 1.55 GeV**2 and THETA = 142.5 deg.
Cross sections for W = 1.55 GeV**2 and THETA = 157.5 deg.
Cross sections for W = 1.57 GeV**2 and THETA = 7.5 deg.
Cross sections for W = 1.57 GeV**2 and THETA = 22.5 deg.
Cross sections for W = 1.57 GeV**2 and THETA = 37.5 deg.
Cross sections for W = 1.57 GeV**2 and THETA = 52.5 deg.
Cross sections for W = 1.57 GeV**2 and THETA = 67.5 deg.
Cross sections for W = 1.57 GeV**2 and THETA = 82.5 deg.
Cross sections for W = 1.57 GeV**2 and THETA = 97.5 deg.
Cross sections for W = 1.57 GeV**2 and THETA = 112.5 deg.
Cross sections for W = 1.57 GeV**2 and THETA = 127.5 deg.
Cross sections for W = 1.57 GeV**2 and THETA = 142.5 deg.
Cross sections for W = 1.57 GeV**2 and THETA = 157.5 deg.
We measured the inclusive electron-proton cross section in the nucleon resonance region (W < 2.5 GeV) at momentum transfers Q**2 below 4.5 (GeV/c)**2 with the CLAS detector. The large acceptance of CLAS allowed for the first time the measurement of the cross section in a large, contiguous two-dimensional range of Q**2 and x, making it possible to perform an integration of the data at fixed Q**2 over the whole significant x-interval. From these data we extracted the structure function F2 and, by including other world data, we studied the Q**2 evolution of its moments, Mn(Q**2), in order to estimate higher twist contributions. The small statistical and systematic uncertainties of the CLAS data allow a precise extraction of the higher twists and demand significant improvements in theoretical predictions for a meaningful comparison with new experimental results.
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