0
very interesting question, we don't know why. however there are several lines of evidence from studying other particles in the standard model that suggest that there cannot be more than 6 quarks.
Wiki User
∙ 13y ago
Wiki User
∙ 8y agoThe sixth quark flavor predicted by the Standard Model (the top quark) took a long time to discover or create in a controlled setting because of how massive and unstable it is. Thus it would require a powerful collider to create it. Remember that in particle accelerators, some of the energy of the collision is converted to mass per the famous matter-energy equivalence formula E=mc^2; this would mean for a heavy particle it would need an energy at least equal to its mass-energy, and take a lot of collisions at this high energy to create it. If it is unstable and statistically anomalous it would increase the difficulty and take a lot of sifting through results of many collisions to identify. In the case of the top quark it is about the same mass as an entire gold atom, making it currently the heaviest known elementary particle, heavier than even the Higgs.
Add your answer:
Earn +20 pts
Why no hadron contain top quark in particle physics?
I am sure there are hadrons containing top quark(s), but they have not been observed. The things preventing the observation of such hadrons are:one top quark by itself has roughly the mass of an entire tungsten atom, this means it takes an enormous amount of energy just to create just one top quarkthe top quark is very unstable with a halflife of about 5E-25 seconds, this means that for all practical purposes all top quarks created will be gone within only about 25E-25 seconds so they are very unlikely to even have a chance to find other quarks to form hadrons with and if they did form a hadron it would decay rapidly
Is scientist an adjective?
The word 'Scientists' is the plural of the noun 'Scientist'. So no, it is not an adjective.
Why does an earthworm find it difficult to move on a glass?
Because glass is a smooth surface. Worms move by using microscopic hairs on their bodies to provide traction so they can pull themselves forward.
What subatomic particles comprise the nucleus?
The two Subatomic particles which are in the Nucleus of an Atom is the Up and Down quark. When we think about the Nucleus of an Atom it is made up with Neutrons and Protons. Both Neutrons and Protons are made up with Quarks (a type of Subatomic Particle) Neutrons have to Down quarks and one Up quark. Whilst Protons have two Up quarks and one Down quark. So we can see that the Nucleus of an Atom is not only made up but dependent on Up and Down quarks.This should answer the Question.
Does neutrino mean neutron?
Definatly not! A Neutron is a kind of Baryon (a type of Hadron) made up of the subatomic particles: Up quark, Down quark and Electrons. Now a Neutrino is different, there are three different types. There are Electron Neutrinoes, Muon Neutrinoes, and Tau Neutrinoes. Neutrinos are a type of Lepton, for every Neutrino there is a equivalent non-neutrino. For example, There is an Electron and an Electron Neutrino. So to conclude Neutrino does not mean Neutron, instead it is describing a type of Lepton. This should answer the Question.
Why was it so difficult for scienitist to find the sixth quark?
Because they needed to produce a collision with an energy around 200 GeV, the top quark's rest mass, to pop it into existence. There are currently only two accelerators in the world that can do this, the LHC at CERN and the Tevatron at Fermilab. As a point of reference, a mass of 200 GeV/c2 is about 200 times more massive than a proton.
Is quark misfit in Einsteins' theory?
Einstein's theories had nothing to do with elementary particles, and so the quark does not clash with them.
Is a quark a part of the atom?
A quark is what makes up the nuetrons and protons of an atom. So yes, it could be counted as part of an atom.
What quark is the 6th quark also known as?
The six quark flavors are up, down, strange, charmed, bottom, and top. The top quark was the last to be created in an accelerator since its mass was so great; after a nearly 20 year search it finally was announced by Fermilab.
What did Abraham find difficult?
because God want him to sacrifice his son so he find difficult
What is the nature of the job scientist?
The nature of a scientist is to figure out answers to problems, help find cures for diseases, and so on.
Is down quark heavier than up quark because neutron is heavier than proton?
The two are related, yes, but technically it would be more accurate to say it the other way around: "Neutrons are heavier than protons because down quarks are heavier than up quarks" Neutrons are composed of an up quark and two down quarks (udd). Protons are composed of two up quarks and one down quark (uud), so the difference in mass between a proton and neutron is (roughly) the same as the difference in mass between the neutron's down quark and the proton's matching up quark. Because a down quark is heavier than an up quark, it is also possible for a down quark to decay into an up quark (releasing an electron in the process). This is how beta radiation occurs in atomic nuclei. One of the neutrons' down quarks decays into an up quark, changing that neutron into a proton, and releasing an electron (as radiation), so another way to look at it would be that a down quark is an up quark that has an electron trapped inside it (the mass of the electron, plus the energy required to "trap" it there, is what makes the down quark heavier).
What does math have to do with being a scientist?
Sometimes in Science you will have to measure things and/or you will have to find the average. So basically that's what math has to do with being a scientist.
How many famous scientist are there?
there are scientist from a to z but we can't find them yet for yo, you have to find them on your own thenn so well then by see ya later then buddy but if you can find them let me now how many are there talk to you later then
Can someone help me find bad background against Karl Landsteiner?
We have a debate in science and our group scientist is Archimedes. Our opponent's scientist is Karl Landsteiner. We have to prove why our scientist is better than the other scientist and i can't find anything on it. For anyone who is willing to help, thank you so much.
Why is it so difficult for Parvana and her mother to travel to the prison to find Father?
It is difficult bacause they have no vehical to go, so they have to walk. B
Why were scienists so surprised to find coal in the arctic?
I don't know. Does it look like I am a scientist? No. I'm not a scientist so don't come up here asking me these dumb questions. Ask a scientist this question if you want to know so bad. OK? Thank you and goodnight!
