000001787 001__ 1787
000001787 005__ 20191127040510.0
000001787 037__ $$aBELLE2-PTHESIS-2019-003
000001787 041__ $$aeng
000001787 100__ $$aResmi P K
000001787 245__ $$aMeasurement of the CKM angle $\boldsymbol{\phi_3}$ from $\boldsymbol{B^{\pm}\to D(K_{\rm S}^0\pi^+\pi^-\pi^0)K^{\pm}}$ decays and future prospects
000001787 260__ $$aChennai, India$$bIndian Institute of Technology Madras$$c2019
000001787 300__ $$amult. p
000001787 500__ $$aPresented on 26 11 2019
000001787 502__ $$aPhD$$bChennai, India, Indian Institute of Technology Madras$$c2019
000001787 520__ $$aWe present the first model-independent measurement of the CKM unitarity triangle angle phi3 using B->D(KsPiPiPi0)K decays, where D indicates either a D0 or D0bar meson. Measurements of the strong-phase of the D->KsPiPiPi0 amplitude are obtained from a CLEO-c dataset of 0.8 fb^-1. These are used as external input to the phi3 measurement, which is performed on the full Belle data set of 772 x 10^6 BBbar pairs collected at the Upsilon(4S) resonance. We obtain phi3 = (5.7 ^{+10.2}_{-8.8} \pm 3.5 \pm 5.7) and the suppressed amplitude ratio rB = 0.323 \pm 0.147 \pm 0.023 \pm 0.051. Here the first uncertainty is statistical, the second is the experimental systematic uncertainty, and the third is the uncertainty due to the precision of the strong-phase parameters obtained from CLEO-c data. The 95% confidence interval on phi3 is (-29.7, 109.5), which is consistent with the current world average value. We also present the future prospect of this measurement at Belle II, a substantial upgrade of its predecessor. A brief discussion on the construction and quality assurance of the silicon vertex detector at Belle II and the first physics results from 2018 are also presented.​  
000001787 700__ $$aJim Libby$$edir.
000001787 8560_ $$fresmi.p.k@desy.de
000001787 8564_ $$uhttps://docs.belle2.org/record/1787/files/BELLE2-PTHESIS-2019-003.pdf
000001787 980__ $$aTHESIS