DC hits to Moller XSection - Revision history

Vanwdani: /* Verification using LUND and evio files */

2017-07-27T21:52:20Z

Verification using LUND and evio files

2016-12-30T06:46:26Z

Isotropic Spread in CM Frame for 5-40 degrees in Lab

2016-12-28T05:45:14Z

Applying weight to DC hits

2016-12-28T05:23:25Z

Applying weight to DC hits

2016-12-26T21:32:42Z

Isotropic Spread in CM Frame for 5-40 degrees in Lab

2016-12-14T21:03:55Z

Applying weight to DC hits

2016-12-14T21:03:23Z

Applying weight to DC hits

2016-12-14T20:59:30Z

Applying weight to DC hits

2016-12-14T20:57:49Z

Applying weight to DC hits

2016-12-01T02:59:19Z

Applying weight to DC hits

@@ Line 106: / Line 106: @@
 If we set the bin width for Theta in the Lab frame to be 0.01 degrees wide, then we can limit the number of times Moller events occur within such a range to once.  This limiting corresponds to an isotropic spread of the scattering Theta in the lab frame.
-<center>[[File:MolThetaLabIsotropic.png]]</center>
+<center>[[File:MolThetaLabIsotropic.png]][[File:MolThetaLabWeighted.png]]</center>
 ==Applying weight to DC hits==

@@ Line 136: / Line 136: @@
 [[File:DCHitsThetaLabR1.png |thumb | border | center |500 px |alt=Moller Momentum Center of Mass Frame |'''Figure 1a:''' A plot of Moller electron momentum in the center of mass frame.]]
 [[File:DCHitsThetaLabR2.png |thumb | border | center |500 px |alt=Moller Momentum Center of Mass Frame |'''Figure 1a:''' A plot of Moller electron momentum in the center of mass frame.]]
-[[File:DCHitsThetaLabR3.png |thumb | border | center |500 px |alt=Moller Momentum Center of Mass Frame |'''Figure 1a:''' A plot of Moller electron momentum in the center of mass frame.]]
+[[File:DCHitsThetaLabR3_Isotropic.png |thumb | border | center |500 px |alt=Moller Momentum Center of Mass Frame |'''Figure 1a:''' A plot of Moller electron momentum in the center of mass frame.]]
 =[[DV_RunGroupC_Moller#DC_hits_to_Moller_XSection|back]]=

@@ Line 116: / Line 116: @@
 [[File:TheoryDCHits.png |thumb | border | center |500 px |alt=DC Hits Theory |'''Figure 13b:''' A plot of Moller electron scattering angle theta in the lab frame that have an associated hit in the DC.  Each occurrence of a generated particle's angle theta is counted once, regardless of the number of hits associated with it.  A weight has been applied to each occurrence of the angle theta that yields the Moller scattering differential cross section.  The theoretical Moller differential cross-section is plotted for comparison.]]
 Below is what happens if you ask for all hits in the drift chambers to be plotted as a function of the moller electron angle.  You see a lot more hits for the lower angle moller electrons.  Perhaps the higher angle moller electrons are bending and missing the outer drift chamber.
@@ Line 121: / Line 122: @@
 [[File:DCHitsThetaLab.png |thumb | border | center |500 px |alt=DC Hits Theta Lab  |'''Figure 13:''' A plot of Moller electron scattering angle theta in the lab frame that have an associated hit in the DC.  Each occurrence of a DC hit associated with a generated particle's angle theta is recorded.]]
 Limiting the number of times the angle theta is counted, regardless of the amount of hits registered in the DC, we can apply a weight and renormalize the bins to obtain the Moller differential cross-section.

← Older revision		Revision as of 21:32, 26 December 2016
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	<center>[[File:LH2_0Sol_n100Tor_11GeV_Phi0deg_ShieldOut_MolThetaLabWeightedAdjusted.png]]</center>		<center>[[File:LH2_0Sol_n100Tor_11GeV_Phi0deg_ShieldOut_MolThetaLabWeightedAdjusted.png]]</center>
		+
		+
		+	If we set the bin width for Theta in the Lab frame to be 0.01 degrees wide, then we can limit the number of times Moller events occur within such a range to once. This limiting corresponds to an isotropic spread of the scattering Theta in the lab frame.
		+
		+	<center>[[File:MolThetaLabIsotropic.png]]</center>

	==Applying weight to DC hits==		==Applying weight to DC hits==

← Older revision	Revision as of 21:03, 14 December 2016
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−	+	Below is a break down of the above weighted hits in each Region.

@@ Line 107: / Line 107: @@
 Ideally, we would like to be able to recover the Moller differential cross section from DC hits.  Since this occurs in the lab frame, we will use the differential cross section found in the previous section in this frame.  Each hit in the DC is associated with a generated particle's angle theta, plotting this we find:
-  Plot of Theta from GenPart if moller hits any one DC Layer (event is only counted once no matter how many layers register a DC hit)
+  Below is a plot of Theta from GenPart if moller hits any one DC Layer (event is only counted once no matter how many layers register a DC hit).  The Moller X-sect is overlayed.  The drift chambers appear to be less efficiency at detecting high angle moller electrons.
 [[File:DCHitsThetaLab.png |thumb | border | center |500 px |alt=DC Hits Theta Lab  |'''Figure 13:''' A plot of Moller electron scattering angle theta in the lab frame that have an associated hit in the DC.  Each occurrence of a DC hit associated with a generated particle's angle theta is recorded.]]
@@ Line 113: / Line 118: @@
 Limiting the number of times the angle theta is counted, regardless of the amount of hits registered in the DC, we can apply a weight and renormalize the bins to obtain the Moller differential cross-section.

← Older revision		Revision as of 20:57, 14 December 2016
Line 106:		Line 106:

	Ideally, we would like to be able to recover the Moller differential cross section from DC hits. Since this occurs in the lab frame, we will use the differential cross section found in the previous section in this frame. Each hit in the DC is associated with a generated particle's angle theta, plotting this we find:		Ideally, we would like to be able to recover the Moller differential cross section from DC hits. Since this occurs in the lab frame, we will use the differential cross section found in the previous section in this frame. Each hit in the DC is associated with a generated particle's angle theta, plotting this we find:
		+
		+	Plot of Theta from GenPart if moller hits one DC Layer

	[[File:DCHitsThetaLab.png \|thumb \| border \| center \|500 px \|alt=DC Hits Theta Lab \|'''Figure 13:''' A plot of Moller electron scattering angle theta in the lab frame that have an associated hit in the DC. Each occurrence of a DC hit associated with a generated particle's angle theta is recorded.]]		[[File:DCHitsThetaLab.png \|thumb \| border \| center \|500 px \|alt=DC Hits Theta Lab \|'''Figure 13:''' A plot of Moller electron scattering angle theta in the lab frame that have an associated hit in the DC. Each occurrence of a DC hit associated with a generated particle's angle theta is recorded.]]

← Older revision		Revision as of 02:59, 1 December 2016
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	[[File:DCHitsThetaLabR3.png \|thumb \| border \| center \|500 px \|alt=Moller Momentum Center of Mass Frame \|'''Figure 1a:''' A plot of Moller electron momentum in the center of mass frame.]]		[[File:DCHitsThetaLabR3.png \|thumb \| border \| center \|500 px \|alt=Moller Momentum Center of Mass Frame \|'''Figure 1a:''' A plot of Moller electron momentum in the center of mass frame.]]
		+
		+	=[[DV_RunGroupC_Moller#DC_hits_to_Moller_XSection\|back]]=