MUONS!

1 / 12

# MUONS! - PowerPoint PPT Presentation

MUONS!. How muons are created Detecting methods Muon half life and decay rate Muon decay data Problems with the data and muons. What are we going to talk about?.

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.

## PowerPoint Slideshow about ' MUONS!' - coy

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

### MUONS!

How muons are created

• Detecting methods
• Muon half life and decay rate
• Muon decay data
• Problems with the data and muons
What are we going to talk about?

Protons from the cosmic rays interact with the atoms in the upper atmosphere and create a shower of particles which decay further to produce muons.

How muons are created.

Muon Enters

A flash is emitted

Decays into an electron

The scintillator detects the electron and emits a flash

Detecting methods

λ-Decay rate dt-change in time

== hence t=

t=0 => No= Our = 0.388

N(t)=No Meaning that half life= 2.6

Muon Half Life and Decay Rate.

Systematic errors:

• The PMT cable was faulty which fluctuated the results giving inaccurate results as it affected the rate of decay.
• Affecting flux rate.

“11’o’clock drop”

Problems with the data

When the person is standing up:

• 0.155*(6719073/24)*16=515129 (±0.5)
• When the person is lying down: 0.885*(6719073/24)*8=1982127 (±0.5)

0.5m

0.5m

Shoulder: 0.115m2

Standing: 0.885m2

0.23m

0.177m

How many muons pass through you everyday?

Muons decayed in detector