H2020Индивидуална стипендия2019–2021

FSI in hadron decays · Final state interactions in heavy flavour decays

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2019-03-18 → 2021-03-17
Финансиране от ЕС: 183 455 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Взаимодействията между частиците при разпада на тежки хадрони, например при превръщането на B-мезони в пиони или каони, се анализират чрез нови теоретични инструменти. Това помага да се разбере защо във вселената има повече материя, отколкото антиматерия, и дали съществуват нови физични закони.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Final state interactions in heavy flavour decays

The precision study of complex multibody decays of bottom and charm hadrons has a unique sensitivity to new fundamental particles and interactions that could give rise to the matter-antimatter asymmetry of the universe, or dark matter. New, vast datasets allow for these studies to be performed with unprecedented experimental precision. However, theoretical uncertainties limit the sensitivity of this approach. The work carried out by this fellowship allowed us to overcome this limitation by developing novel theoretical tools to describe multibody hadron decays and applied them to the latest datasets in a unique collaboration between theory and experiment. Society is being beneficent from the fundamental questions I am addressing such as the new mechanisms that explain the asymmetry between matter and anti-matter. The main objectives of the fellowship were to investigate the importance of final state interactions (FSI) in B three-body decays. In B->hhh (where h are pions or kaons) FSI introduces new strong phases and can act as an important new source of CP violation that can help us explain the matter-antimatter asymmetry observed in hadronic B-hadron decays. It can also reveal new physics. The second objective focuses on understanding the discrepancies with the Standard Model (SM) by calculating the complete set of FSI effects. We started with B->Kµµ transitions, which very recently measured with all data available in LHCb since 2011 this discrepancy to be three standard deviations from the SM prediction. Our studies include the quantification of hadronic FSI towards a charm intermediated states which are theoretically very challenging to calculates. The information that can be gained about physics beyond the SM is extremely rich, once hadronic effects are understood.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

The precision study of complex multibody decays of bottom and charm hadrons has unique sensitivity to new fundamental particles and interactions that could give rise to the matter-antimatter asymmetry of the universe, or dark matter. New, vast datasets allow for these studies to be performed with unprecedented experimental precision. However, theoretical uncertainties limit the sensitivity of this approach. The proposed research overcomes this limitation by developing novel theoretical tools to describe multibody hadron decays, and applying them to the latest datasets in a unique collaboration between theory and experiment.In particularly, this research program focus on improving particles strong interaction description in the final states ofmultibody decays (B-->KKK, B--> Kππ, B-->K*μμ and Bc-->KKπ), including both low-energy two-body full amplitudes,with rescattering and coupled channels; and hight-energy charm mesons as intermediate states of the process.

Оригинален текст от CORDIS (на английски).

Участници

UNIVERSITY OF BRISTOL · BRISTOLКоординаторОбединеното кралство