Scientists of LHCb and CMS Collaborations the data in Nature which confirms the existence of the strange B mesons decaying to two muons in accordance with the standard model predictions.
In the article the authors analyse data, observed at the Large Hedron Collider in 2011 and 2012 within the scope of LHCb and CMS experiments. The group of scientists from 吃瓜官网 and Budker Institute of Nuclear Physics participated in this investigation as a part of LHCb collaboration. Aleksandr Bondar, Semyon Eidelman, Lev Shekhtman, Vasily Kudryavtsev, Pavel Krokovny, Vitaly Vorobyev and Anton Poluektov were among the authors of the article. The group from Novosibirsk participated directly in creation of detector and its support at the moment of experimental data admission.
Aleksandr Bondar: 鈥� Since the investigated decay is very rare (three decayed B mesons on a billion), the colossal forces of a big group of researches who work at the creation of the LHC accelerator and unique LHCb & CMS detectors were needed for the purpose of measurement of this decay. As the result, standard model predictions were confirmed once again. It let us not only to be sure in the correctness of modern assumptions of elemental particles and their interaction, but also to decline the number of hypotheses which enlarge the standard model, for example with the purpose of the baryon asymmetry explanation.
The strange B meson arise as a result of proton鈥損roton collisions, decaying at two muons. Recall that this decay has been investigated since 1970-s. However, this experiment hadn`t been registered in earlier investigations.
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