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# Muon Trigger Acceptance Study PowerPoint PPT Presentation

Muon Trigger Acceptance Study. Ye Li UW-Madison. Goals. Implement BMU + track trigger to extend acceptance for dimuons; Investigate the acceptance gain from other newly implemented triggers;

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Muon Trigger Acceptance Study

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## Muon Trigger Acceptance Study

Ye Li

UW-Madison

### Goals

• Implement BMU + track trigger to extend acceptance for dimuons;

• Investigate the acceptance gain from other newly implemented triggers;

• Investigate the acceptance gain using the following muon regions: blue beam, keystone, and mini skirt.

### Run Number Plots of Z Muons

• Require one leg as CMUP muon and the other as BMU muon

• The RH plot has both triggers CMUP18 and L3BMU on

### Invariant Mass

• The top plots are:

• no trigger required

total entries: 84521

• CMUP18 or CMX18 on

total entries: 83872

• CMUP18, CMX18 or L3BMU on

total entries: 83873

• The bottom plots are:

• no trigger required

• CMUP18 and CMX18 on

• CMUP18 and L3BMU on

### Eta Distribution

• Use “or” to find out the following:

• How many data events we have from the standard requirement of CMUP or CMX

• How many data events we would gain by adding the BMU trigger, that is, requiring CMUP, CMX or BMU

• How many total events there are in the bhmu stream, that is, by including all other non-standard triggers

• Fewer than 1% additional events in the entire bhmu stream ( BMU data not included in the current stream? )

### What to do next?

• Check if there is a separate BMU-triggered data stntuple;

• Use fiduciality definitions in the stntuple of the CMUP and CMX systems;

• Investigate the acceptance gain using the following muon regions: blue beam, keystone, and mini skirt;

• Study the efficiencies of newly implemented trigger.