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

Slides:

Advertisements

Similar presentations

AGASA Results Max-Planck-Institut für Physik, München, Germany Masahiro Teshima for AGASA collaboration at 3 rd Int. Workshop on UHECR, Univ. Leeds.

Advertisements

Addition of velocities in the Newtonian physics V v= speed of the train measured from the platform w 1 =man’s speed measured from the train w1w1 w 2 =man’s.

The largest contribution to the mass of the atom is: 1.Higgs field providing fundamental particle mass by interacting with quarks 2.Einstein’s E = mc 2.

正および負電荷のミューオンの物質中での寿命 July 1 st, 2014 Suguru Tamamushi List of Contents 1.Purpose 2.Decay of Positive and Negative Muons 3.Experimental Procedure and.

Detecting Particles: The Spark Chamber Particle Physics Masterclass Stephen A. Bull Tuesday 24 th April 2007.

Shantanu Menon Thomas Irons Michael Jacoutot. Cosmic Rays  High energy particles (mainly protons) from outer space.  Have up to 10 million times more.

What are Isotopes? How are they used ? …and a song to cheer you up!

Measurement of lifetime for muons captured inside nuclei Advisors: Tsung-Lung Li Wen-Chen Chang Student: Shiuan-Hal Shiu 2007/06/27.

A Muon Veto for the Ultra-Cold Neutron Asymmetry Experiment Vince Bagnulo LANL Symposium 2006 Outline ● UCNA Experiment ● Muon background ● Proposed Veto.

A Muon Veto for the Ultra Cold Neutron Asymmetry Experiment Vince Bagnulo with Dr. Jeff Martin Electrons Ultra Cold Neutrons Cosmic Ray Muons Protons Pions.

Cosmic Ray Lifetime Study A measurement of Special Relativity Richard Lasky – Summer 2010.

Conducted by: Adrian Lorenzana David Harris Muon Speed/Lifetime Study.

Xinjun Guo Dec. 16, Cosmic Rays  Primary: protons( ), light nuclei  Secondary:,, others  Decay product:,,

Cosmic Rays Basic particle discovery. Cosmic Rays at Earth – Primaries (protons, nuclei) – Secondaries (pions) – Decay products (muons, photons, electrons)

CRAnE: A JAS-based Data Acquisition System for Cosmic Rays Jennifer Docktor & Manuel Reyes Mentors Tom Glanzman & Willy Langeveld August 13, 2003 Department.

Muon Decay Experiment John Klumpp And Ainsley Niemkiewicz.

Gravitational waves LIGO (Laser Interferometer Gravitational-Wave Observatory ) in Louisiana. A laser beam is.

Detecting Cosmic Rays An inexpensive portable detector By: Danny Franke Quarknet 2004.

By Kristine Kovacs The Big Bang and Beyond

Cosmic Ray Workshop May 15, May 15, 2010 Rutgers Cosmic Ray Workshop.

Forward Detectors and Measurement of Proton-Antiproton Collision Rates by Zachary Einzig, Mentor Michele Gallinaro INTRODUCTION THE DETECTORS EXPERIMENTAL.

QuarkNet 2011 Mohamed Ali-Hussein Ayasha Jabber. Cosmic Rays Discovered by Victor Hess in 1912 High energy particles (atoms, protons, electrons) traveling.

Radiation. When you see or hear this word what do you think about? What do you think it means? Share your thoughts with me by writing on the post it what.

Jimmy McCarthy International Cosmic Ray Day 26 th September 2012 Detecting Cosmic Rays.

Radioactivity php.

Muons are short-lived subatomic particles that can be produced in accelerators or when cosmic rays hit the upper atmosphere. A muon at rest has a lifetime.

QuarkNet Muon Data Analysis with Shower Array Studies J.L. FISCHER, A. CITATI, M. HOHLMANN Physics and Space Sciences Department, Florida Institute of.

Scintillators, DAQ boards, and PMTs Getting Familiarized With the Equipment By Melissa Sussmann and Alex Bonnifield.

Cosmic Rays: Ever Present and Useful Anthony Gillespie Denbigh High School Mentor: Dr. Douglas Higinbotham Cosmic Rays Using the Cosmic Rays Current Research.

Twin Paradox The Theory of Relativity. About Relativity As an object approaches the speed of light, time slows down. (Moving clocks are slow) (Moving.

Lecture 1 A Revolution in time Classical Physics Timeline.

Half-life It's impossible to predict when a specific atom is going to decay, but you can predict the number of atoms that will decay in a certain time.

A Cherenkov Radiation Detector for the Auger Project Katarzyna Oldak Research Adviser: Corbin Covault Department of Physics The purpose of this project.

Special Relativity Einstein (1905): Three Nobel-Prize worthy publications On unrelated subjects: Brownian motion Photo-electric effect (Nobel prize) “On.

Cosmic Rays The discovery of cosmic rays Discoveries made with cosmic rays Cosmic rays in modern physics education Let’s count cosmic rays around us.

James Westover Dan Linford.  Background  Production and Lifetime  The Apparatus  Discussion of our procedure and results  Questions.

Effect of Geomagetic Activity on Cosmic Ray Muon Rate Mendon High School Regents Physics Honors Period 9 Class A group of Honors physics students plotted.

Monte Carlo simulations of a first prototype micropattern gas detector system used for muon tomography J. B. Locke, K. Gnanvo, M. Hohlmann Department of.

NUCLEAR EQUATIONS Alpha Decay An alpha particle looks like a helium atom ( 4 2 He) massatomicmass reduces by 4,the atomic # reduces by 2 Examples: 238.

Measurement of lifetime for muons captured inside nuclei

Radioactivity. Radiation When you see or hear this word what do you think about? What do you think it means? Share your thoughts with me by writing on.

Teaching and Learning with the Cosmic Ray e-Lab

Section 19.1 Radioactivity 1.To learn the types of radioactive decay 2.To learn to write nuclear equations for radioactive decay 3.To learn how one element.

Lec: Isotopes and Ions. An Isotope is an element that has the same number of protons but a different number of neutrons.

Brian Lowery July 11,  Primary  From space ▪ Lower energy cosmic rays come from sun ▪ Higher energy cosmic rays come from other places in the.

II. DETECTORS AND HOW THEY WORK

QuarkNet and Cosmic Ray Muon Flux Experiments Florida Academy of Sciences Spring Conference 2009 Alfred Menendez and Michael Abercrombie with Dr. Marcus.

9th April 2009based on a presentation prepared by D. Schinzel 1 COSMIC RAY DETECTOR.

Victor Hess in his balloon (1912). Cosmic Rays Produce Muons in the Atmosphere.

Spacetime diagrams can help you to visualize relativity. They are similar to scale diagrams and freebody diagrams.

19.3 Detection of radioactivity

Scintillation Counter

NUCLEAR CHANGES What is Radioactivity?. What happens when an element undergoes radioactive decay? During radioactive decay an unstable nuclei of an isotope.

Solar Neutrinos By Wendi Wampler. What are Neutrinos? Neutrinos are chargeless, nearly massless particles Neutrinos are chargeless, nearly massless particles.

Time-dilation experiment Prof Raghava Varma. This experiment is an indirect verification of special theory of relativity using cosmic ray muons. The picture.

Measurement devices Cloud chamber Geiger counter Bubble chamber Nuclear emulsion 2.

Nuclear Decay You will be learning: 1.What is alpha, beta, and gamma radiation. 2.Know the half-life of a radioactive material. 3.How to describe the process.

Time Dilation and Length Contraction - The Evidence 1.Know how muons are produced in the upper atmosphere 2.Be able to explain the evidence from Rossi’s.

Cosmic Ray Detector at Work 3 Guys and a Cosmic Ray Detector Derek, Kurt, Doug and Teachers: Josh, Grace.

The NSCL is funded in part by the National Science Foundation and Michigan State University. Results: the neutron source was located 19.9 inches from the.

TYPES OF RADIATION How many types of radiation are there and how are they different? SHARE Talk to the person next to you, you have 1 minute.

By Rebecca Denison, Joe Ditmar, Oxana Kachtanova, Caitlin Kearns, and Sam Tencer With the greatly appreciated assistance of Maureen Michael and Stephanie.

Muon Lab Theory Muons (standard model) Cosmic rays Life time

“Performance test of a lead glass

QuarkNet and Cosmic Ray Muon Flux Experiments

The Life and Times of Cosmic-ray Muons

Cosmic Ray Showers Cosmic ray activity Figure 3:

Atmospheric Muon This is a muon that was produced naturally from cosmic rays hitting the atmosphere. Only the highest energy muons can penetrate the.

Detecting Cosmic Rays An inexpensive portable detector

Austin Park and Willie Dong

Presentation transcript:

MUONS!

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

How muons are created. 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.

Feynman diagrams

Detecting methods Muon Enters A flash is emitted Decays into an electron The scintillator detects the electron and emits a flash

Muon Half Life and Decay Rate.

Muon decay data 02/07/2014 – 03/07/2014

03/07/2014 – 04/07/2014

Problems with the data 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”

How many muons pass through you everyday? When the person is standing up: 0.155*( /24)*16= (±0.5) When the person is lying down: 0.885*( /24)*8= (±0.5) Shoulder: 0.115m 2 0.5m 0.23m Standing: 0.885m 2 0.5m 0.177m

How many interact with you Muons decayed in detector Total muons through detector Muons passed through your body = 3946

Problems with muons They have a half life of 2.2µ yet they can still travel 660m. This is due to time dilation, as muons travel 98% the speed of light. Therefore, time slows down.