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DPG

Bonn 2020 – scientific programme

The DPG Spring Meeting in Bonn had to be cancelled! Read more ...

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T: Fachverband Teilchenphysik

T 74: Flavor physics: CKM II

T 74.4: Talk

Thursday, April 2, 2020, 17:15–17:30, H-HS XI

Measurement of ACP in B0K*0µ+µ and B+K+µ+µ decays with LHCb — •Hendrik Jage, Christoph Langenbruch, and Eluned Smith — I. Physikalisches Institut B, RWTH Aachen University

The LHCb detector at CERN is an experiment dedicated to the study of heavy flavour quarks, which are abundantly produced in the proton-proton collisions at the Large Hadron Collider (LHC). Flavour-changing neutral currents (FCNC), like the bs+ transitions common to both analysed decay modes, are forbidden in the Standard Model (SM) at tree-level and could thus be significantly affected by new heavy particles beyond the SM.

The direct CP asymmetry (ACP) in B0K*0µ+µ and B+K+µ+µ decays has been previously measured by the LHCb collaboration using data taken in 2011 and 2012 during the LHC Run 1. While no significant deviations from the SM predictions have been observed, the measurement is still statistically limited. An update will be performed aiming to include the additional data collected by the LHCb experiment during the LHC Run 2.

In this talk the status of the updated measurement of ACP in B0K*0µ+µ and B+K+µ+µ decays will be presented.

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