Phi angle in CM frame for different runs
EC_total, [math]\displaystyle{ cos\theta_{pion}^{CM} }[/math] vs [math]\displaystyle{ \phi_{diff}^{CM} }[/math], missing mass, [math]\displaystyle{ \theta_{e} }[/math] vs [math]\displaystyle{ \phi_{e} }[/math]
- Electron Momentum vs EC_total
- Missing Mass
- [math]\displaystyle{ \theta_{e}^{LAB} }[/math] vs [math]\displaystyle{ \phi_{e}^{LAB} }[/math]
Phi lab [math]\displaystyle{ \varphi^{LAB} }[/math]
The angle is (0, 360).
| electron sector | [math]\displaystyle{ \varphi_{e}^{LAB} }[/math] | [math]\displaystyle{ \varphi_{pion}^{LAB} }[/math] | [math]\displaystyle{ \varphi_{e}^{LAB} - \varphi_{pion}^{LAB} }[/math] after correction |
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Phi CM [math]\displaystyle{ \varphi^{CM} }[/math]
The phi angle after rotation and transformation to the CM frame
| electron sector | [math]\displaystyle{ \varphi_{e}^{CM} }[/math] | [math]\displaystyle{ \varphi_{pion}^{CM} }[/math] |
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Phi_angle_in_CM_Frame for different [math]\displaystyle{ cos\theta_{pion}^{CM} }[/math] cuts
Used 1735 files. The following cuts are applied: [math]\displaystyle{ 0.9<M_x<1.1 }[/math], [math]\displaystyle{ 1.1<W<1.5 }[/math] and EC cuts.
Insert plot of M_x and W to show cuts
Then insert phi -vs- theta
| NH3 target | N15 and C12 target |
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| [math]\displaystyle{ 0.8<cos\theta_{pion}^{CM}<1 }[/math] | [math]\displaystyle{ 0.6<cos\theta_{pion}^{CM}<0.8 }[/math] | [math]\displaystyle{ 0.4<cos\theta_{pion}^{CM}<0.6 }[/math] | [math]\displaystyle{ 0.2<cos\theta_{pion}^{CM}<0.4 }[/math] | [math]\displaystyle{ 0<cos\theta_{pion}^{CM}<0.2 }[/math] |
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| [math]\displaystyle{ -0.8>cos\theta_{pion}^{CM}>-1 }[/math] | [math]\displaystyle{ -0.6>cos\theta_{pion}^{CM}>-0.8 }[/math] | [math]\displaystyle{ -0.4>cos\theta_{pion}^{CM}>-0.6 }[/math] | [math]\displaystyle{ -0.2>cos\theta_{pion}^{CM}>-0.4 }[/math] | [math]\displaystyle{ 0>cos\theta_{pion}^{CM}>-0.2 }[/math] |
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Cuts: EC_inner>0.06, EC_tot/p>0.2, nphe>2.5, [math]\displaystyle{ 0.9<M_x<1.1 }[/math], [math]\displaystyle{ 1.1<W<1.5 }[/math] and [math]\displaystyle{ 0.6<cos\theta_{pion}^{CM}<0.8 }[/math].
[3]
Cuts: EC_inner>0.06, EC_tot/p>0.2, nphe>2.5, [math]\displaystyle{ 0.9<M_x<1.1 }[/math], [math]\displaystyle{ 1.44<W<1.46 }[/math] and [math]\displaystyle{ 0.6<cos\theta_{pion}^{CM}<0.8 }[/math].
[4]
cos_theta_pion_CM_Frame_vs_Phi_angle_in_CM_Frame for different W(missing mass) cuts
| 1.14<W<1.16 | 1.16<W<1.18 | 1.18<W<1.2 | 1.2<W<1.22 | 1.22<W<1.24 |
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| 1.24<W<1.26 | 1.26<W<1.28 | 1.28<W<1.3 | 1.3<W<1.32 | 1.32<W<1.34 |
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| 1.34<W<1.36 | 1.36<W<1.38 | 1.38<W<1.4 | 1.4<W<1.42 | 1.42<W<1.44 |
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Phi_angle_in_CM_Frame for 1.44<W<1.46
| [math]\displaystyle{ 0.8<cos\theta_{pion}^{CM}<1 }[/math] | [math]\displaystyle{ 0.6<cos\theta_{pion}^{CM}<0.8 }[/math] | [math]\displaystyle{ 0.4<cos\theta_{pion}^{CM}<0.6 }[/math] | [math]\displaystyle{ 0.2<cos\theta_{pion}^{CM}<0.4 }[/math] | [math]\displaystyle{ 0<cos\theta_{pion}^{CM}<0.2 }[/math] |
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| [math]\displaystyle{ -0.8>cos\theta_{pion}^{CM}>-1 }[/math] | [math]\displaystyle{ -0.6>cos\theta_{pion}^{CM}>-0.8 }[/math] | [math]\displaystyle{ -0.4>cos\theta_{pion}^{CM}>-0.6 }[/math] | [math]\displaystyle{ -0.2>cos\theta_{pion}^{CM}>-0.4 }[/math] | [math]\displaystyle{ 0>cos\theta_{pion}^{CM}>-0.2 }[/math] |
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Phi_angle_CM_Frame_vs_Relative_Rate for Missing Mass equal to 1.45 GeV
| [math]\displaystyle{ 0.8<cos\theta_{pion}^{CM}<1 }[/math] | [math]\displaystyle{ 0.6<cos\theta_{pion}^{CM}<0.8 }[/math] | [math]\displaystyle{ 0.4<cos\theta_{pion}^{CM}<0.6 }[/math] | [math]\displaystyle{ 0.2<cos\theta_{pion}^{CM}<0.4 }[/math] | [math]\displaystyle{ 0<cos\theta_{pion}^{CM}<0.2 }[/math] |
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| [math]\displaystyle{ -0.6>cos\theta_{pion}^{CM}>-0.8 }[/math] | [math]\displaystyle{ -0.4>cos\theta_{pion}^{CM}>-0.6 }[/math] | [math]\displaystyle{ -0.2>cos\theta_{pion}^{CM}>-0.4 }[/math] | [math]\displaystyle{ 0>cos\theta_{pion}^{CM}>-0.2 }[/math] |
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Electron_theta_angle_in_Lab_Frame_vs_phi_angle_in_CM_Frame
| electron sector | pion_theta_angle_vs_phi_angle_in_CM_Frame_before_cuts | pion_theta_angle_vs_phi_angle_in_CM_Frame_after_cuts(EC_inner>0.06, EC_tot/p>0.2, nphe>2.5, [math]\displaystyle{ 0.9<M_x<1.1 }[/math], [math]\displaystyle{ 1.1<W<1.5 }[/math] ) |
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