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4. Cosmic Muons High energy subatomic particles coming from space interact with muons in the upper...
Muons are unstable subatomic particles that decay to electrons with a mean lifetime of 2.2 μs...
Muons are unstable subatomic particles that decay to electrons with a mean lifetime of 2.2 μs . They are produced when cosmic rays bombard the upper atmosphere about 12.4 km above the earth's surface, and they travel very close to the speed of light. The problem we want to address is why we see any of them at the earth's surface. a) What is the greatest distance a muon could travel during its 2.2 μs lifetime? b) According to your...
1. Subatomic particles called muons can be created in the upper atmosphere by collisions of cosmic...
1. Subatomic particles called muons can be created in the upper atmosphere by collisions of cosmic rays (energetic particles coming from astrophysical sources). As we shall see in a few lectures, muons quickly decay (in 2.2 microseconds on average) into other particles. Consider a muon that was created at a height the same as the top of a nearby mountain, traveled straight down towards the Earth through the atmosphere at 0.9 times the speed of light, and then decayed at...
Muons are unstable subatomic particles that decay to electrons with a mean lifetime of 2.2 μs...
Muons are unstable subatomic particles that decay to electrons with a mean lifetime of 2.2 μs . They are produced when cosmic rays bombard the upper atmosphere about 10.9 km above the earth's surface, and they travel very close to the speed of light. The problem we want to address is why we see any of them at the earth's surface. 1. From the point of view of the muon, it still lives for only 2.2 μs , so how...
One of the most impressive experimental confirmations of Time Dilation involves muons. Muons are unstable elementary...
One of the most impressive experimental confirmations of Time Dilation involves muons. Muons are unstable elementary particles with a lifetime of 2.2 μμs. They are naturally produced in collisions between cosmic radiation and atoms in our upper atmosphere (~3000m above the Earth's surface). A muon travels at 0.98c. In a reference frame that is attached to the moving muon (the muon's reference frame), how far can the muon travel before it decays (recall that v = d/t)? For an observer...
Muons are particles created about 10 km above Earth's surface when cosmic rays interact with nuclei...
Muons are particles created about 10 km above Earth's surface when cosmic rays interact with nuclei in atmospheric molecules. If Special Relativity did not exist, these muons which are traveling 99.7% the speed of light, would only go about 0.660 km before decaying (their lifetime is 2.2 microseconds). But Special Relativity does apply in our Universe. How far do the muons travel before decaying (at 99.7% the speed of light and created 10 km above the Earth)? The muon flux...
Suppose a cosmic ray colliding with a nucleus in the Earth's upper atmosphere produces a muon...
Suppose a cosmic ray colliding with a nucleus in the Earth's upper atmosphere produces a muon that has speed v = 0.74c. The muon then travels at constant speed and lives 1.525 μs as measured in the muon's frame of reference. (You can imagine this as the muon's internal clock.) Please answer B A) How many kilometers does the muon travel according to an Earth-bound observer? 0.503 is the answer to A B) How many kilometers of the Earth pass...
A high energy cosmic ray hits the upper atmosphere, 10km above the earth, and produces a...
A high energy cosmic ray hits the upper atmosphere, 10km above the earth, and produces a muon travelling and 0.99c. (a) How long does it take the muon to hit the earth's surface in the earth's reference frame? (b) How long does it take to hit the surface in the muon's reference frame? (c) If the mean lifetime of a muon is 2.2us what is the chance that it will reach the earth's surface?
A high energy cosmic ray hits the upper atmosphere, 10km above the earth, and produces a...
A high energy cosmic ray hits the upper atmosphere, 10km above the earth, and produces a muon travelling and 0.99c. (a) How long does it take the muon to hit the earth's surface in the earth's reference frame? (b) How long does it take to hit the surface in the muon's reference frame? (c) If the mean lifetime of a muon is 2.2us what is the chance that it will reach the earth's surface?
Please show any steps and relevant explanation that might help. Also please be legible. I will...
Please show any steps and relevant explanation that might help.
Also please be legible. I will rate :) Thanks!
Question 4 our atmosphere, making extensive showers of secondary particles that can be measured in detectors which observe the ionization they create as they descend through our atmosphere. Most cosmic rays are protons photons. But a few years ago a puzzling phenomenon was observed: type" appeared to be coming from a bizarre deep space object known as Cygnus X3. The reason...
A high energy cosmic ray hits the upper atmosphere, 10km above the earth, and produces a muon travelling and 0.99c. (a) How long does it take the muon to hit the earth's surface in the earth's reference frame? (b) How long does it take to hit the surface in the muon's reference frame? (c) If the mean lifetime of a muon is 2.2us what is the chance that it will reach the earth's surface?
A high energy cosmic ray hits the upper atmosphere, 10km above the earth, and produces a muon travelling and 0.99c. (a) How long does it take the muon to hit the earth's surface in the earth's reference frame? (b) How long does it take to hit the surface in the muon's reference frame? (c) If the mean lifetime of a muon is 2.2us what is the chance that it will reach the earth's surface?
Please show any steps and relevant explanation that might help.
Also please be legible. I will rate :) Thanks!
Question 4 our atmosphere, making extensive showers of secondary particles that can be measured in detectors which observe the ionization they create as they descend through our atmosphere. Most cosmic rays are protons photons. But a few years ago a puzzling phenomenon was observed: type" appeared to be coming from a bizarre deep space object known as Cygnus X3. The reason...
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