The discovery of the new particle confirms the theory describing how quarks connect and therefore helps to understand the strong nuclear force, one of the four forces in physics that determine the structure of matter
The discovery of the new particle confirms the theory describing how quarks connect and therefore helps in understanding the strong nuclear force, one of the four forces in physics that determine the structure of matter
Gossip Signs: A photo of a particle collision in the CMS detector shows the decay products of the Xi_b^* baryon. Among other things, you see two muons (the red lines). Photo: CERN
Physicists from the University of Zurich have discovered a hitherto unknown particle of the baryon type, consisting of three quarks at the Large Hadron Collider (LHC) in Geneva. The new bully, named Xi_b^* was first discovered at the LHC. This discovery confirms basic assumptions of physics regarding the binding of quarks.
In particle physics, the baryon family are particles composed of three quarks. Quarks form groups of six particles that differ from each other in mass and electric charge. The lightest quarks, called "up" and "down" make up the two familiar components of the atom - the protons and neutrons. All bullies composed of the three light quarks "up", "down" and "strange" are known, but only a few bullies composed of heavier quarks have been observed so far. They can only be produced artificially in particle accelerators because they are heavy and very unstable.
In the proton collision course at the LHC at CERN, the researchers - Claude Amsler, Vincento Chiocchia and Ernst Aghiolo from the Institute of Physics at the University of Zurich, succeeded in discovering a baryon that has one light quark and two heavy quarks. The Xi_b^* particle consists of one "up" quark, one "strange" quark and one "bottom" quark (Up Strange Bottom-USB). It is electrically neutral and has a spin of 3/2 (or 1.5). Its mass is similar to that of a lithium atom. The meaning of the discovery is that two of the three thugs predicted in the USB composition in theory have now been discovered.
The discovery is based on data collected from the CMS detector that the University of Zurich was involved in developing. The new particle cannot be detected directly because it is too unstable to be registered by the detector. However Xi_b^* decays in a predetermined order of decay products. Agiolo, a postdoctoral student in Prof. Amsler's group identified the traces of the predicted decay products in the experimental data and was able to reconstruct the decay path starting from the Xi_b^*.
The calculations are based on the energy data of seven tera electron volts collected by the CMS detector between April and November 2011. Within the data, traces of 21 Xi_b^* baryons were discovered, a figure sufficient to rule out a statistical error.
The discovery of the new particle confirms the theory describing how quarks connect and therefore helps in understanding the strong nuclear force, one of the four forces in physics that determine the structure of matter.
14 תגובות
With each particle that is "discovered" the credibility of all those that were "discovered" before decreases.
Affection
Bibi????
I think that to give the particle a more lovable and catchy name than :Xi_b^*.
Any suggestions??
were added….
If the maximum level of accuracy in the clock was an hour,
We would add millions of people to the list of punctual people.
Sagi
When you say a proven law, either accurate or beyond doubt, in the world of jurisprudence, the material energy, etc.
The truth is, it is based on the data of the existing devices and technology, whose level of accuracy is limited.
We believe that if we had a measuring device with an "infinite" level of accuracy, everything would look different,
We would no longer use the words: law, accuracy, equality and identity.
Its correctness is not in doubt just as Newtonian mechanics is not in doubt. This does not mean, of course, that there is no other transcendental physics that occurs at energy levels that we have not yet reached in accelerators.
I admit that I don't understand much about quarks ("up" "down", "strange" and all their friends)
And yet I want to understand.
.with all the problems that the standard model has
Is it still after all the many discoveries of particles that the model predicted
Is his willingness still in doubt...
I remember that I made a bet with someone here that they would not discover my mass particles or dark energy until 31.12.2012
And every day that passes I feel more and more the taste of ice cream.
And to the skunk I say that if it moves like a duck and makes a sound like a duck and looks like a duck then it is at least a duck that passed the Independence Day barbecues safely.
A wonderful day and only seven months left for ice cream
Sabdarmish Yehuda
I always say
If it quacks like a duck, sounds like a duck and looks like a duck
So I'm probably at Disneyland
It is not accurate to say that a new particle was discovered. This is the "trouble" in science that it is sometimes impossible to summarize things in a precise title. According to the Yauria, a certain chain of decline indicates this thug. Discover the chain of decline and not the bully. By the way, it doesn't hurt to punctuate the word "bully" if possible
and instead of the world,
must be written however.
A message to everyone
on an unphotographed particle
They just discovered him, and he disappeared
And the experiment is over and done with