Difference between revisions of "Mattione Update 06202011"
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| − | == Overview == | + | == b1pi Overview == |
* Generated 10000 X(2000) -> b<sub>1</sub>π<sup>-</sup>; events following the instructions [http://www.jlab.org/Hall-D/software/wiki/index.php/HOWTO_simulate_and_analyze_b1pi_events here]. | * Generated 10000 X(2000) -> b<sub>1</sub>π<sup>-</sup>; events following the instructions [http://www.jlab.org/Hall-D/software/wiki/index.php/HOWTO_simulate_and_analyze_b1pi_events here]. | ||
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|-> π+ π- | |-> π+ π- | ||
</pre> | </pre> | ||
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== Invariant Masses == | == Invariant Masses == | ||
| − | + | * High mass tails due to incorrect photon reconstruction have been removed. These tails were due to photons in the FCAL being reconstructed with vertex-z = 0, such that they had bogus momentum vectors. This was fixed when Miha Kornicer recently updated the photon reconstruction code. | |
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| − | + | * Pi0 invariant mass: | |
| − | + | [[Image:Mattione_Update_06012011_InvMass_Pi0.gif|thumb|left|400px|pi0 06/01]] | |
| − | + | [[Image:Mattione_Update_06202011_InvMass_Pi0.gif|thumb|left|400px|pi0 Current]] | |
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| − | [[Image: | + | |
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<br style="clear:both;"/> | <br style="clear:both;"/> | ||
| − | + | * X(2000) invariant mass: | |
| − | + | [[Image:Mattione_Update_06012011_InvMass_X2000.gif|thumb|left|400px|X(2000) 06/01]] | |
| − | * | + | [[Image:Mattione_Update_06202011_InvMass_X2000.gif|thumb|left|400px|X(2000) Current]] |
| − | [[Image: | + | |
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<br style="clear:both;"/> | <br style="clear:both;"/> | ||
| − | === | + | == Photons == |
| − | + | [[Image:Mattione_Update_06012011_NumTracks_Photons.gif|thumb|left|400px]] | |
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| − | [[Image: | + | |
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<br style="clear:both;"/> | <br style="clear:both;"/> | ||
| − | + | [[Image:Mattione_Update_06012011_Photons_GenPVsTheta.gif|thumb|left|400px|generated, 06-12-2011]] | |
| − | + | [[Image:Mattione_Update_06012011_Photons_ReconPVsTheta.gif|thumb|left|400px|reconstructed 06-12-2011]] | |
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| − | [[Image: | + | |
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<br style="clear:both;"/> | <br style="clear:both;"/> | ||
Latest revision as of 13:08, 20 June 2011
b1pi Overview
- Generated 10000 X(2000) -> b1π-; events following the instructions here.
- Decay chain:
gamma p -> p X(2000)0
|
|-> b1(1235)+ π-
|
|-> ω π+
|
|-> ρ0 π0
| |-> γ γ
|
|-> π+ π-
Invariant Masses
- High mass tails due to incorrect photon reconstruction have been removed. These tails were due to photons in the FCAL being reconstructed with vertex-z = 0, such that they had bogus momentum vectors. This was fixed when Miha Kornicer recently updated the photon reconstruction code.
- Pi0 invariant mass:
- X(2000) invariant mass:
Photons
