Time-Dependent CP Asymmetries in B0 -> Ks pi0 gamma transitions

Abstract

We report measurements of CP violation parameters in B0->Ks pi0 gamma transitions based on a data sample of 535x10^6 BB pairs collected with the Belle detector at the KEKB asymmetric-energy e+ e- collider. One neutral B meson is fully reconstructed in the B0->Ks pi0 gamma mode. The flavor of the accompanying B meson is identified from its decay products. For a Ks pi0 invariant mass up to 1.8 GeV/c^2, we obtain S = -0.10 +- 0.31 +- 0.07 and A = -0.20 +- 0.20 +- 0.06. For a Ks pi0 invariant mass near the K*0(892) resonance, we obtain S = -0.32 +0.36-0.33 +-0.05 and A=-0.20 +-0.24 +-0.05.

6 pages, 3 figures, accepted by PRD

References in corpus (16)

• The Cosmological Parameters 2006
• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• An inclusive measurement of the photon energy spectrum in b->s gamma decays
• Mixing-induced CP Asymmetries in Radiative B Decays in and beyond the Standard Model
• Evidence for B0->pi0pi0
• Impact of tag-side interference on time-dependent CP asymmetry measurements using coherent B0 B0bar pairs
• Neutral B Flavor Tagging for the Measurement of Mixing-induced CP Violation at Belle
• The photon polarization in B -> X gamma in the standard model
• Improved Measurement of CP-Violation Parameters sin(2phi1) and |lambda|, B Meson Lifetimes, and B0-B0bar Mixing Parameter Delta m_d
• Time-dependent CP Asymmetry in B->K* gamma as a (Quasi) Null Test of the Standard Model
• Mixing-Induced CP Violation in B -> P_1 P_2 gamma in Search of Clean New Physics Signals
• Proper-time Resolution Function for Measurement of Time Evolution of B Mesons at the KEK B-Factory
• The CP asymmetry in B^0(t) -> K_S π^0 γin the Standard Model
• Mixing-induced CP asymmetry in B-> K* gamma decays with perturbative QCD approach
• Measurement of the time-dependent CP-violating asymmetry in $B^0\to K_s^0{\pi }^0\gamma$ decays
• Measurement of Time-Dependent CP-Violating Asymmetry in B0 -> Ks pi0 gamma Decay

Cited by in corpus (38)

• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of summer 2016
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2018
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2021
• Comprehensive Bayesian Analysis of Rare (Semi)leptonic and Radiative B Decays
• Reassessing the discovery potential of the $B\to K^{\ast }{\ell }^{+}{\ell }^{-}$ decays in the large-recoil region: SM challenges and BSM opportunities
• Rare $B$ Decays as Tests of the Standard Model
• Constraints on new physics from radiative $B$ decays
• B, D and K decays
• New Physics at a Super Flavor Factory
• Exploiting the width difference in B_s -> phi gamma
• Flavor Anomalies in Heavy Quark Decays
• CP violation in the B system
• First observation of the radiative decay ${\Lambda }_b^0\to \Lambda \gamma$
• Determining the photon polarization of the b --> s gamma using the B --> K1(1270) gamma --> (K pi pi) gamma decay
• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
• Measurement of $CP$-violating and mixing-induced observables in $B_s^0\to \varphi \gamma$ decays
• Rare b hadron decays at the LHC
• Measurement of the photon polarization in ${\Lambda }_b\to \Lambda \gamma$ decays
• Measurement of Time-dependent $CP$ Asymmetries in $B^0\to K_S^0\eta \gamma$ Decays
• Time-dependent analysis of $B^0\to K_S^0{\pi }^{-}{\pi }^{+}\gamma$ decays and studies of the $K^{+}{\pi }^{-}{\pi }^{+}$ system in $B^{+}\to K^{+}{\pi }^{-}{\pi }^{+}\gamma$ decays
• Measurement of B Decays to phi K gamma
• Time-Dependent {\boldmath $CP$}-Violating Asymmetry in $B^0\to {\rho }^0\gamma$ Decays
• Angular analysis of B -> J/psi K1 : towards a model independent determination of the photon polarization with B-> K1 gamma
• Reexamining the photon polarization in $B\to K\pi \pi \gamma$
• Renormalization of heavy-light currents in moving NRQCD
• Search for TeV Scale Physics in Heavy Flavour Decays
• Up-down Asymmetries and Angular Distributions in $D\to K_1(\to K\pi \pi ){\ell }^{+}{\nu }_{\ell }$
• CP violation in beauty decays
• Experimental constraints from flavour changing processes and physics beyond the Standard Model
• $H\to Z\gamma$ decay and $CP$ violation
• Non-diagonal contributions to $Z\gamma V^{\ast }$ vertex, polarizations and bounds on $Z\overline{t}q$ couplings
• Imprint of SUSY in radiative B-meson decays
• Weak Value Amplification in High Energy Physics: A Case Study for Precision Measurement of CP Violation in B Meson Decays
• Recent developments in radiative B decays
• Measurement of $CP$ asymmetries in $B^0\to K_S^0{\pi }^0\gamma$ decays at Belle II
• Prospects for Upgrade of KEKB
• Search for rare B meson decays at the BaBar experiment
• $B$-flavor tagging at Belle II