Phi angle in CM frame for different runs

[math]\varphi^{LAB}[/math]

The angle is (0, 360).

electron sector	[math]\varphi_{e}^{LAB}[/math]	[math]\varphi_{pion}^{LAB}[/math]	[math]\varphi_{e}^{LAB} - \varphi_{pion}^{LAB}[/math] after correction
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[math]\varphi^{CM}[/math]

The angle is (0, 360).

electron sector	[math]\varphi_{e}^{CM}[/math]	[math]\varphi_{pion}^{CM}[/math]	[math]\varphi_{e}^{CM} - \varphi_{pion}^{CM}[/math] after correction	[math]\varphi_{e}^{CM} - \varphi_{pion}^{CM}[/math]
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I used 27 files. The cut is applied on [math]1.6 \lt Q^{2} \lt 1.9[/math].

phi_angle_in_cm_frame_vs_electron_sector

phi_angle_in_cm_frame_vs_pion_sector

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