# EPS-HEP2019

Jul 10 – 17, 2019
Ghent
Europe/Brussels timezone

## First measurements of the phi_3 sensitive decay B+ -> D(Ks pi+ p- pi0) K+ with Belle

Jul 11, 2019, 10:30 AM
20m
Campus Ledeganck - Aud. 6 (Ghent)

### Campus Ledeganck - Aud. 6

#### Ghent

Parallel talk Flavour Physics and CP Violation

### Speaker

Resmi P K (IIT Madras)

### Description

We present the first model-independent measurement of the CKM angle $\phi_3$ using $B^{\pm}\to D(K_{\rm S}^0\pi^+\pi^-\pi^0)K^{\pm}$ decays. The GGSZ method is used by binning the a five-dimensional phase space of the $D$ decay. This analysis uses the measurement of the average strong-phase differences across the phase space in $D \to K_{\rm S}^0\pi^+\pi^-\pi^0$ decays from CLEO-c, as input. The results are obtained from the full Belle data set with an integrated luminosity of 711 fb$^{-1}$ collected at the $\Upsilon(4S)$ resonance.

### Primary authors

Resmi P K (IIT Madras) Shohei Nishida (KEK)