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Q: Why are tau and muon leptons so rare?
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Why are leptons divided into families?

Leptons are divided into three families with 4 particles (2 particles, plus their two anti-particles) in each family. In the electron family we have the electron, positron, electron neutrino and electron anti-neutrino. Each family has a higher mass than the one before it so the tauon is heavier than the muon which is heavier than the electron. The physical reason for there being three families is completely unknown and will probably win you a Nobel prize if you can figure it out!


Why Pi should be replaced with tau?

Pi (3.14) should be replaced with tau because angles are measured easily in radians than in degrees. For an example, there are 2Pi radians in a circle. 2Pi is equal to one tau (6.28). Therefore, there are tau radians (360 degrees) in a circle. A semicircle would have half tau (180 degrees) and a quarter of a circle a quarter tau (90 degrees) and so forth. P.S. - Pi is a constant which references the circumference of a circle to its radius (2Pi radius; it will become tau radius).


What is spin of particle in physics?

Taking a 'particle' as a proton/ neutron, both of these have spin 1/2. So do all leptons (electrons, neutrinos, etc).


What are the fundamental particles of matter?

The smallest components KNOWN so far are the quarks, and leptons (which include electrons). It is still possible that these are made up of smaller particles.


Is lepton part of an atom?

Lepton is the common name given to electron, positron, neutrino, antinuetrino, mu-meson [muon] etc. So an atom has these elementary particles within and come out in specific circumstances.

Related questions

How many particles have been discovered so far?

6 Quarks (Up, Down, Charm, Strange, Top, Bottom) 6 Leptons (Electron, Muon, Tau, Electron Neutrino, Muon Neutrino, Tau Neutrino) 5 Bosons (Photon, W+,W- & Z Bosons, Gluon) Overall 17


Why are leptons divided into families?

Leptons are divided into three families with 4 particles (2 particles, plus their two anti-particles) in each family. In the electron family we have the electron, positron, electron neutrino and electron anti-neutrino. Each family has a higher mass than the one before it so the tauon is heavier than the muon which is heavier than the electron. The physical reason for there being three families is completely unknown and will probably win you a Nobel prize if you can figure it out!


How do you divide restaurant into syllables?

There are three syllables divided like so: res-tau-rant.


Can you calculate the area of a circle with tau?

So area of a circle is pi*(radius^2), since tau = 2*pi, then you have pi = (2*pi/2), so (2*pi/2)*radius^2 = (tau/2)*radius^2


Why Pi should be replaced with tau?

Pi (3.14) should be replaced with tau because angles are measured easily in radians than in degrees. For an example, there are 2Pi radians in a circle. 2Pi is equal to one tau (6.28). Therefore, there are tau radians (360 degrees) in a circle. A semicircle would have half tau (180 degrees) and a quarter of a circle a quarter tau (90 degrees) and so forth. P.S. - Pi is a constant which references the circumference of a circle to its radius (2Pi radius; it will become tau radius).


What are muons?

The muon (from the letter mu (μ)--used to represent it) is an elementary particle with negative electric charge and a spin of 1/2. It has a mean lifetime of 2.2μs, longer than any other unstable lepton, meson, or baryon except for the neutron. Together with the electron, the tau, and the neutrinos, it is classified as a lepton. Like all fundamental particles, the muon has an antimatter partner of opposite charge but equal mass and spin: the antimuon, also called a positive muon. Muons are denoted by μ− and antimuons by μ+. For historical reasons, muons are sometimes referred to as mu mesons, even though they are not classified as mesons by modern particle physicists. Muons have a mass of 105.7 MeV/c2, which is 206.7 times the electron mass. Since their interactions are very similar to those of the electron, a muon can be thought of as a much heavier version of the electron. Due to their greater mass, muons do not emit as much bremsstrahlung radiation; consequently, they are highly penetrating, much more so than electrons. Muons have a life of about 2 nanoseconds.


How do you express cosine in terms of cotangent?

cos(x)=sin(x-tau/4) tan(x)=sin(x)/cos(x) sin(x)=tan(x)*cos(x) cos(x)=tan(x-tau/4)*cos(x-tau/4) you can see that we have some circular reasoning going on, so the best we can do is express it as a combination of sines and cotangents: cos(x)=1/cot(x-tau/4)*sin(x-tau/2) tau=2*pi


How lond does it take to get a ta-tau tattoo?

it takes abt an hour or so ~EZOLover~


When was So Rare created?

So Rare was created in 1937.


What is spin of particle in physics?

Taking a 'particle' as a proton/ neutron, both of these have spin 1/2. So do all leptons (electrons, neutrinos, etc).


Do 36 and 48 have the same amount of factors?

A fun way to figure out the number of factors, other than listing them all, is to use something called the TAU function. Take a number, such as 36 and write it in its prime factorization So 36=32 x 22 and 48=24 x 3 Now Tau(36) (which we say as Tau of 36) is the number of positive divisors of 36. Tau (48) is the number of positive divisors of 48. We compute Tau by looking at the exponents, 2 and 2 in the prime factorization and addiing 1 to each then multiplying. Don't worry about the base, ONLY the exponents! So Tau(36)=(2+1)(2+1)=9 Tau(48)=(4+1)(1+1)=10 which is greater than 9 so 48 has more factors. If you look at the links section with this question, I provided a webpage that helps a little more!


Is there a limit to how far matter can be subdivided?

Yes. Matter is all made up of atoms: protons, neutrons, and electrons. Protons are made up of quarks, and electrons are made up of leptons. As far as we know so far, quarks and leptons are as far subdivided as it gets, but who knows what future science enquiries will bring.