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CharmAsymmetries SIGNED

The charm of asymmetries or the asymmetries in charm (entangled edition)

Total Cost €


EC-Contrib. €






Project "CharmAsymmetries" data sheet

The following table provides information about the project.


Organization address
address: OXFORD ROAD
postcode: M13 9PL

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country United Kingdom [UK]
 Total cost 212˙933 €
 EC max contribution 212˙933 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2018
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2019
 Duration (year-month-day) from 2019-09-23   to  2021-09-22


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

The study of difference between matter and antimatter (CP violation) is one of the most exciting fields at the frontier of fundamental physics research. It is driven by the question of what happened to the antimatter after the Big Bang. The mesons, particles that contain both matter and antimatter quarks are ideal laboratories for the discovery of CP violation. This proposal aims at looking for CP violation in decays of mesons containing one charm (or anti-)quark, the only type of mesons where CP violation has not yet been observed.

One of the objectives is to carry out a measurement of the matter-antimatter mixing and CP violation parameters in the most sensitive charm decay mode (D0->Kspipi) using the unprecedented charm data sample collected by the LHCb experiment at CERN. To achieve maximal precision of both measurements, external input from the unique Chinese flavour factory, BESIII, is crucial. Key attributes of the decays of the D meson, the strong phases and their variation across the phase space, require the use of quantum-entangled states that are accessible at BESIII. Usually, these quantities are measured in regions of the phase space, the definition of which is inspired by a model. Wrong definition of these regions would lead to dilution of the sensitivity of these measurements. We propose to measure these quantities at every point of the phase space to maximise the precision.

The second objective is to look for CP violation in the charm D0->(anti-)K*0KS decays with LHCb data ignoring time-dependent effects arising from matter-antimatter mixing. The three-body final state after an instant decay of the exited K*0 meson, K pi KS, will be studied using novel model-dependent and model independent methods, the former has been pioneered by the Manchester LHCb group, and the latter has not yet been tested. Currently, these decays have been highlighted by theorists as the most likely discovery channel for time-integrated CP violation in the charm system.

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The information about "CHARMASYMMETRIES" are provided by the European Opendata Portal: CORDIS opendata.

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