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Exploring Cosmic Muons with CMS: Insights and Measurements

This informal talk presents a beginner's overview of cosmic muons, leveraging slides from various CMS meetings. While not delving deeply into detector mechanisms, it emphasizes the physics measurements of cosmic muons. Key discussions include muon selection criteria, angular resolution, and methodology used in assessing measured angles at impact points. The content reflects ongoing studies led by Arun Nayak and Pablo Garcia, focusing on data analysis, including resolution fitting for muon data at nominal energy levels.

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Exploring Cosmic Muons with CMS: Insights and Measurements

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  1. Some basics about Cosmic Muons @ CMS Disclaimer I am not an expert in Cosmic Physics, But a very beginner. As it is supposed to be an informal Talk, The slides shown here are just a collection of slides from other people’s talk in CMS meetings. The slides are more about physics measurements of Cosmic muons and not about the detector understanding, although it indirectly aims the same. Arun Nayak

  2. Pablo Garcia

  3. Pablo Garcia

  4. m+ m-

  5. Study on Angular Resolution • Muon selection : 2 Leg Barrel muons (global, STA) f (muon) < 0., same track charge for both leg , # of total track hits >= 25, 15 for upper and Lower legs. • The Lower Leg track is propagated to the closest approach to the 1st hit point (inner most point as convention) of the upper Leg track. • The difference of the measured angle (f, q, zenith angle) at the 1st hit point are studied. A Nayak

  6. f Resolution GLB muon Data MC 10GeV Fitted with double gaussian function A Nayak

  7. q Resolution GLB muon Data MC 10GeV A Nayak

  8. a (Zenith angle) Resolution GLB muon Data MC 10GeV A Nayak

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