Physics working on the LHCB detector on a large hadron collider, found hints on phenomena that cannot be explained in the framework of modern physics – a standard model describing the properties of all known particles. This is reported in preprint published in the ARXIV repository.
In March, a group of scientists published data that adorable quarks (b-quarks) disintegrate to muons by 15 percent less often than the parts of the particles – electrons. It is impossible to explain in a standard model, which provides for only one difference between the muon and the electron, which is 200 times the easiest of its “twin”. In other words, adorable quarks should decay to muons and electrons with the same frequency. However, at that time, the difference between experimental data and the standard model was three sigma or three standard deviations, which in the physics of elementary particles is not enough to unambiguously judge the opening.
In order for physicists to talk about the existence of an unknown force that interferes with the breakdown of b-quarks on muons, it is necessary to achieve a result of five SIGMs, when the probability that the difference is caused by the accident will be less than one per million. Although in a new study, it was not possible to achieve this threshold, scientists observed the same effect: the disintegration of the charming quarks on the muons took place by 30 percent less often than the decay to electrons. The difference between the theory and the experiment was about two standard deviations or about two sigm. In other words, the probability of a statistical error is just over two percent.
According to scientists, confirm or refute this data will help in order to build an upgraded LHCB detector, which will have to collect additional data and provide additional statistics.
Although for the real day, the standard model passed all experimental checks, scientists know that it is not complete. It does not include gravitational interaction and does not describe particles that could explain the existence of dark matter that has an observed effect on the usual substance in the universe. Recently, more and more data on new physics are accumulated outside the standard model, but so far scientists have not discovered the unambiguous evidence of its existence.