EC_total, [math]cos\theta_{pion}^{CM}[/math] vs [math]\phi_{diff}^{CM}[/math], missing mass, [math]\theta_{e}[/math] vs [math]\phi_{e}[/math]
- Electron Momentum vs EC_total
![Electron momentum vs EC total with cuts.gif](/./images/thumb/3/3b/Electron_momentum_vs_EC_total_with_cuts.gif/300px-Electron_momentum_vs_EC_total_with_cuts.gif)
- Missing Mass
- [math]\theta_{e}^{LAB}[/math] vs [math]\phi_{e}^{LAB}[/math]
![Electron theta vs electron phi angle in lab frame using trl variables with cuts.gif](/./images/thumb/d/df/Electron_theta_vs_electron_phi_angle_in_lab_frame_using_trl_variables_with_cuts.gif/400px-Electron_theta_vs_electron_phi_angle_in_lab_frame_using_trl_variables_with_cuts.gif)
[1]
Phi lab [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
|
1 |
![Electron phi angle for sector 1 in LAB frame 27 files.gif](/./images/thumb/8/84/Electron_phi_angle_for_sector_1_in_LAB_frame_27_files.gif/300px-Electron_phi_angle_for_sector_1_in_LAB_frame_27_files.gif) |
![Pion phi angle for sector 1 in LAB frame 27 files.gif](/./images/thumb/8/83/Pion_phi_angle_for_sector_1_in_LAB_frame_27_files.gif/300px-Pion_phi_angle_for_sector_1_in_LAB_frame_27_files.gif) |
|
2 |
![Electron phi angle for sector 2 in LAB frame 27 files.gif](/./images/thumb/0/0c/Electron_phi_angle_for_sector_2_in_LAB_frame_27_files.gif/300px-Electron_phi_angle_for_sector_2_in_LAB_frame_27_files.gif) |
![Pion phi angle for sector 2 in LAB frame 27 files.gif](/./images/thumb/0/07/Pion_phi_angle_for_sector_2_in_LAB_frame_27_files.gif/300px-Pion_phi_angle_for_sector_2_in_LAB_frame_27_files.gif) |
|
3 |
![Electron phi angle for sector 3 in LAB frame 27 files.gif](/./images/thumb/1/1b/Electron_phi_angle_for_sector_3_in_LAB_frame_27_files.gif/300px-Electron_phi_angle_for_sector_3_in_LAB_frame_27_files.gif) |
![Pion phi angle for sector 3 in LAB frame 27 files.gif](/./images/thumb/7/7b/Pion_phi_angle_for_sector_3_in_LAB_frame_27_files.gif/300px-Pion_phi_angle_for_sector_3_in_LAB_frame_27_files.gif) |
|
4 |
![Electron phi angle for sector 4 in LAB frame 27 files.gif](/./images/thumb/9/9a/Electron_phi_angle_for_sector_4_in_LAB_frame_27_files.gif/300px-Electron_phi_angle_for_sector_4_in_LAB_frame_27_files.gif) |
![Pion phi angle for sector 4 in LAB frame 27 files.gif](/./images/thumb/7/75/Pion_phi_angle_for_sector_4_in_LAB_frame_27_files.gif/300px-Pion_phi_angle_for_sector_4_in_LAB_frame_27_files.gif) |
|
5 |
![Electron phi angle for sector 5 in LAB frame 27 files.gif](/./images/thumb/1/18/Electron_phi_angle_for_sector_5_in_LAB_frame_27_files.gif/300px-Electron_phi_angle_for_sector_5_in_LAB_frame_27_files.gif) |
![Pion phi angle for sector 5 in LAB frame 27 files.gif](/./images/thumb/b/b4/Pion_phi_angle_for_sector_5_in_LAB_frame_27_files.gif/300px-Pion_phi_angle_for_sector_5_in_LAB_frame_27_files.gif) |
|
6 |
![Electron phi angle for sector 6 in LAB frame 27 files.gif](/./images/thumb/d/d8/Electron_phi_angle_for_sector_6_in_LAB_frame_27_files.gif/300px-Electron_phi_angle_for_sector_6_in_LAB_frame_27_files.gif) |
![Pion phi angle for sector 6 in LAB frame 27 files.gif](/./images/thumb/2/2c/Pion_phi_angle_for_sector_6_in_LAB_frame_27_files.gif/300px-Pion_phi_angle_for_sector_6_in_LAB_frame_27_files.gif) |
|
Phi CM [math]\varphi^{CM}[/math]
The phi angle after rotation and transformation to the CM frame
electron sector |
[math]\varphi_{e}^{CM}[/math] |
[math]\varphi_{pion}^{CM}[/math]
|
1 |
![Electron phi angle for sector 1 in CM frame 27095.gif](/./images/thumb/6/6a/Electron_phi_angle_for_sector_1_in_CM_frame_27095.gif/300px-Electron_phi_angle_for_sector_1_in_CM_frame_27095.gif) |
|
2 |
![Electron phi angle for sector 2 in CM frame 27095.gif](/./images/thumb/c/c1/Electron_phi_angle_for_sector_2_in_CM_frame_27095.gif/300px-Electron_phi_angle_for_sector_2_in_CM_frame_27095.gif) |
|
3 |
![Electron phi angle for sector 3 in CM frame 27095.gif](/./images/thumb/d/dd/Electron_phi_angle_for_sector_3_in_CM_frame_27095.gif/300px-Electron_phi_angle_for_sector_3_in_CM_frame_27095.gif) |
|
4 |
![Electron phi angle for sector 4 in CM frame 27095.gif](/./images/thumb/9/9b/Electron_phi_angle_for_sector_4_in_CM_frame_27095.gif/300px-Electron_phi_angle_for_sector_4_in_CM_frame_27095.gif) |
|
5 |
![Electron phi angle for sector 5 in CM frame 27095.gif](/./images/thumb/2/2c/Electron_phi_angle_for_sector_5_in_CM_frame_27095.gif/300px-Electron_phi_angle_for_sector_5_in_CM_frame_27095.gif) |
|
6 |
![Electron phi angle for sector 6 in CM frame 27095.gif](/./images/thumb/2/2e/Electron_phi_angle_for_sector_6_in_CM_frame_27095.gif/300px-Electron_phi_angle_for_sector_6_in_CM_frame_27095.gif) |
|
Correlation plots with[math]cos\theta_{pion}^{CM} , W[/math] , and [math] Q^2[/math]
The angle is (0, 360).
[math]cos\theta_{pion}^{CM}[/math] vs [math]\phi_{diff}^{CM}[/math] |
[math]W[/math] vs [math]\phi_{diff}^{CM}[/math] |
[math]Q^2[/math] vs [math]\phi_{diff}^{CM}[/math]
|
![Pion cos theta in cm frame vs phi angle difference in cm frame with cuts.gif](/./images/thumb/1/16/Pion_cos_theta_in_cm_frame_vs_phi_angle_difference_in_cm_frame_with_cuts.gif/300px-Pion_cos_theta_in_cm_frame_vs_phi_angle_difference_in_cm_frame_with_cuts.gif) |
![Missing mass vs phi angle cm frame.gif](/./images/thumb/b/b5/Missing_mass_vs_phi_angle_cm_frame.gif/300px-Missing_mass_vs_phi_angle_cm_frame.gif) |
|
Same table as above but with the cut 1.0 < W < 1.5
[math]cos\theta_{pion}^{CM}[/math] vs [math]\phi_{diff}^{CM}[/math] |
[math]W[/math] vs [math]\phi_{diff}^{CM}[/math] |
[math]Q^2[/math] vs [math]\phi_{diff}^{CM}[/math]
|
![Pion cos theta in cm frame vs phi angle difference in cm frame Wlt1.5.gif](/./images/thumb/2/29/Pion_cos_theta_in_cm_frame_vs_phi_angle_difference_in_cm_frame_Wlt1.5.gif/300px-Pion_cos_theta_in_cm_frame_vs_phi_angle_difference_in_cm_frame_Wlt1.5.gif) |
![Missing mass vs phi angle cm frame Wlt1.5.gif](/./images/thumb/b/b5/Missing_mass_vs_phi_angle_cm_frame_Wlt1.5.gif/300px-Missing_mass_vs_phi_angle_cm_frame_Wlt1.5.gif) |
|
Same table as above but with the cuts 1.0 < W < 1.25 GeV , 20 MeV bins in W and 15 degree bins in [math]\phi[/math]
[math]cos\theta_{pion}^{CM}[/math] vs [math]\phi_{diff}^{CM}[/math] |
[math]W[/math] vs [math]\phi_{diff}^{CM}[/math] |
[math]Q^2[/math] vs [math]\phi_{diff}^{CM}[/math]
|
![Pion cos theta in cm frame vs phi angle difference in cm frame Wlt1.3.gif](/./images/thumb/c/c8/Pion_cos_theta_in_cm_frame_vs_phi_angle_difference_in_cm_frame_Wlt1.3.gif/300px-Pion_cos_theta_in_cm_frame_vs_phi_angle_difference_in_cm_frame_Wlt1.3.gif) |
![Missing mass vs phi angle cm frame Wlt1.3.gif](/./images/thumb/3/37/Missing_mass_vs_phi_angle_cm_frame_Wlt1.3.gif/300px-Missing_mass_vs_phi_angle_cm_frame_Wlt1.3.gif) |
|
Same table as above but with the cuts 1.0 < W < 1.5 GeV and -0.2 < [math]cos\theta_{pion}^{CM}[/math] < 0
[math]cos\theta_{pion}^{CM}[/math] vs [math]\phi_{diff}^{CM}[/math] |
[math]W[/math] vs [math]\phi_{diff}^{CM}[/math] |
[math]Q^2[/math] vs [math]\phi_{diff}^{CM}[/math]
|
![Pion cos theta in cm frame vs phi angle difference in cm frame Wlt1.5 ct-0.1.gif](/./images/thumb/e/e2/Pion_cos_theta_in_cm_frame_vs_phi_angle_difference_in_cm_frame_Wlt1.5_ct-0.1.gif/300px-Pion_cos_theta_in_cm_frame_vs_phi_angle_difference_in_cm_frame_Wlt1.5_ct-0.1.gif) |
![Missing mass vs phi angle cm frame Wlt1.5 ct-0.1.gif](/./images/thumb/7/7b/Missing_mass_vs_phi_angle_cm_frame_Wlt1.5_ct-0.1.gif/300px-Missing_mass_vs_phi_angle_cm_frame_Wlt1.5_ct-0.1.gif) |
|
Insert the same table as above but with the cuts 1.15 < W < 1.25 GeV and -0.1 < [math]cos\theta_{pion}^{CM}[/math] < 0, 20 MeV bins in W and 15 degree bins in [math]\phi[/math]
[math]cos\theta_{pion}^{CM}[/math] vs [math]\phi_{diff}^{CM}[/math] |
[math]W[/math] vs [math]\phi_{diff}^{CM}[/math] |
[math]Q^2[/math] vs [math]\phi_{diff}^{CM}[/math]
|
![Pion cos theta in cm frame vs phi angle difference in cm frame Wlt1.2 ct-0.1.gif](/./images/thumb/2/26/Pion_cos_theta_in_cm_frame_vs_phi_angle_difference_in_cm_frame_Wlt1.2_ct-0.1.gif/300px-Pion_cos_theta_in_cm_frame_vs_phi_angle_difference_in_cm_frame_Wlt1.2_ct-0.1.gif) |
![Missing mass vs phi angle cm frame Wlt1.2 ct-0.1.gif](/./images/thumb/e/e4/Missing_mass_vs_phi_angle_cm_frame_Wlt1.2_ct-0.1.gif/300px-Missing_mass_vs_phi_angle_cm_frame_Wlt1.2_ct-0.1.gif) |
|
Insert the same table as above but with the cuts W < 1.25 GeV and -0.1 < [math]cos\theta_{pion}^{CM}[/math] < 0, 20 MeV bins in W and 15 degree bins in [math]\phi[/math]
[math]cos\theta_{pion}^{CM}[/math] vs [math]\phi_{diff}^{CM}[/math] |
[math]W[/math] vs [math]\phi_{diff}^{CM}[/math] |
[math]Q^2[/math] vs [math]\phi_{diff}^{CM}[/math]
|
![Pion cos theta in cm frame vs phi angle difference in cm frame Wlt1.25 ct-0.1.gif](/./images/thumb/4/41/Pion_cos_theta_in_cm_frame_vs_phi_angle_difference_in_cm_frame_Wlt1.25_ct-0.1.gif/300px-Pion_cos_theta_in_cm_frame_vs_phi_angle_difference_in_cm_frame_Wlt1.25_ct-0.1.gif) |
![Missing mass vs phi angle cm frame Wlt1.25 ct-0.1.gif](/./images/thumb/e/e2/Missing_mass_vs_phi_angle_cm_frame_Wlt1.25_ct-0.1.gif/300px-Missing_mass_vs_phi_angle_cm_frame_Wlt1.25_ct-0.1.gif) |
|
[2]
![Missing mass events 198333 neutron is required.gif](/./images/thumb/e/ed/Missing_mass_events_198333_neutron_is_required.gif/300px-Missing_mass_events_198333_neutron_is_required.gif)
![M x neutron is required.gif](/./images/thumb/e/e2/M_x_neutron_is_required.gif/300px-M_x_neutron_is_required.gif)
![M x neutron is required zoomed in.gif](/./images/thumb/f/fd/M_x_neutron_is_required_zoomed_in.gif/300px-M_x_neutron_is_required_zoomed_in.gif)
![Missing mass vs Q^2 neutron required.gif](/./images/thumb/1/14/Missing_mass_vs_Q%5E2_neutron_required.gif/300px-Missing_mass_vs_Q%5E2_neutron_required.gif)
![Missing mass vs Q^2 neutron required zoomed in.gif](/./images/thumb/5/5d/Missing_mass_vs_Q%5E2_neutron_required_zoomed_in.gif/300px-Missing_mass_vs_Q%5E2_neutron_required_zoomed_in.gif)
![Missing mass vs phi angle in cm frame neutron required.gif](/./images/thumb/3/39/Missing_mass_vs_phi_angle_in_cm_frame_neutron_required.gif/300px-Missing_mass_vs_phi_angle_in_cm_frame_neutron_required.gif)
![Q^2 vs phi angle in cm frame neutron required.gif](/./images/thumb/2/2a/Q%5E2_vs_phi_angle_in_cm_frame_neutron_required.gif/300px-Q%5E2_vs_phi_angle_in_cm_frame_neutron_required.gif)
![Cos theta cm pion vs phi angle in cm frame neutron required.gif](/./images/thumb/c/c4/Cos_theta_cm_pion_vs_phi_angle_in_cm_frame_neutron_required.gif/300px-Cos_theta_cm_pion_vs_phi_angle_in_cm_frame_neutron_required.gif)
Phi_angle_in_CM_Frame for different [math]cos\theta_{pion}^{CM}[/math] cuts
Used 1735 files. The following cuts are applied: [math]0.9\lt M_x\lt 1.1[/math], [math]1.1\lt W\lt 1.5[/math] and EC cuts.
Insert plot of M_x and W to show cuts
![M x EC cuts 0-9 M x 1-1 1-1 W 1-5 1735 files.gif](/./images/thumb/0/00/M_x_EC_cuts_0-9_M_x_1-1_1-1_W_1-5_1735_files.gif/200px-M_x_EC_cuts_0-9_M_x_1-1_1-1_W_1-5_1735_files.gif)
![Missing Mass EC cuts 0-9 M x 1-1 1-1 W 1-5 1735 files.gif](/./images/thumb/a/a9/Missing_Mass_EC_cuts_0-9_M_x_1-1_1-1_W_1-5_1735_files.gif/200px-Missing_Mass_EC_cuts_0-9_M_x_1-1_1-1_W_1-5_1735_files.gif)
Then insert phi -vs- theta
![Cos theta of pion in cm vs phi angle difference in cm frame EC cuts 0-9 M x 1-1 1-1 W 1-5 1735 files.gif](/./images/thumb/b/bd/Cos_theta_of_pion_in_cm_vs_phi_angle_difference_in_cm_frame_EC_cuts_0-9_M_x_1-1_1-1_W_1-5_1735_files.gif/400px-Cos_theta_of_pion_in_cm_vs_phi_angle_difference_in_cm_frame_EC_cuts_0-9_M_x_1-1_1-1_W_1-5_1735_files.gif)
![1111.gif](/./images/thumb/1/17/1111.gif/400px-1111.gif)
1.4 < Q^2 < 1.8 1.13< W <1.17
not a good cut
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