https://www.inverse.com/innovation/hadron-collider-too-many-particles
The new tetraquark is dubbed X(6900), with the number referring to its mass of 6900 MeV/c2 (6.9 GeV/c2).
Psi is the 23rd letter of the Greek alphabet and is associated with a numeric value of 700.
Strange Quark Value– The name sideways has also been used because the s quark has an I3 value of 0 while the u (“up”) and d (“down”) quarks have values of + 12 and − 12 respectively.
New King James Version
47 Fear and a snare have come upon us,
Desolation and destruction.
Pentaquark predicted value of about 4400 MeV for the mass of the pentaquark Pc(4380)+ lies within the experimental range reported by the LHCb experiment. In addition, the predicted value of about 4500 MeV for the mass of the pentaquark Pc(4450)+ is close to the experimental value.
Matthew 27:3 Then Judas, His betrayer, seeing that He had been condemned, was remorseful and brought back the thirty pieces of silver to the chief priests and elders, 4 saying, “I have sinned by betraying innocent blood.”
And they said, “What is that to us? You see to it!”
5 Then he threw down the pieces of silver in the temple and departed, and went and hanged himself.
6 But the chief priests took the silver pieces and said, “It is not lawful to put them into the treasury, because they are the price of blood.”
PHYSICISTS AT CERN have discovered a plethora of new exotic particles being created in the collisions produced by the Large Hadron Collider over the past few years. So many have been found, in fact, that our collaboration (LHCb), which has discovered 59 out of 66 recent particles, has come up with a new naming scheme to help us impose some order on the growing particle zoo.
Particle physicists have a rather chequered history when it comes to naming things. As more and more particles were discovered over the course of the 20th century, the nomenclature became increasingly befuddling. For instance, in the group of leptons, we have electrons, muons, and then taus, but not tauons.
Although there are only six different types of quarks, and only five of these form hadrons, there are a huge number of possible combinations. In the 1980s, particle physicists devised a naming scheme for the hadron zoo, with a symbol for each particle that made it easy to discern its quark content, such as the Greek letter Π (pi) to denote pions, the lightest mesons.
The absence of logic underlying the names given to the new particles led, perhaps inevitably, to some confusion. The particular problem was that the subscript “c” in the Zc and Pc symbols was meant to imply that these hadrons contain both charm and anticharm quarks (sometimes called “hidden charm”). By contrast, the subscript “s” in the Zcs and Pcs symbols implies that these hadrons also contain a strange quark (“open strangeness”). So then, what should states that contain both open charm (a charm quark alone) and strangeness, as found recently by the LHCb collaboration, be named?
As the range of new states and their assigned names risked becoming further perplexing, we and colleagues in the LHCb collaboration decided it was time to try to restore some semblance of order — at least for the newly discovered particles. Our new naming scheme follows some guiding principles. Firstly, the basic idea should be simple enough for non-experts to follow, achieved with a base symbol of T for tetraquarks and P for pentaquarks.
Current names for exotic hadrons would need to be changed, however. For example, the Zcs and Pcs states mentioned above will become known as Tψs and Pψs, respectively (the J/ψ particle contains hidden charm), solving the problem of distinguishing hidden from open charm by reusing ψ for the former and c for the latter.
The final guiding principle behind the scheme is that it should be accepted by the wider particle physics community. Although the LHCb collaboration has discovered most of the new particles, which traditionally gives us some naming rights, there are other current and planned experiments in this area, and their contributions are essential for the progress of the field. There are also, of course, many theorists across the world working hard to interpret the measurements that are being made.
Both the general principles and the details of the new naming scheme have been discussed with these different groups, with positive and constructive feedback incorporated into our final version.
A naming scheme is an important part of the language used to communicate between people working in particle physics. We hope that this new scheme will help in the ongoing quest to understand how the so-called strong force confines quarks inside hadrons, for example — a feature that defies deep mathematical understanding.
The Tribulation is commencing…
Please repent, carry your cross daily and accept the free gift of Jesus Christ’s Death on the Cross for payment for your sins.
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