Observation of the Rare Decay B+ -> K+ pi0 pi0

2010/05/20 by P. del Amo Sanchez, The BABAR Collaboration, Sanchez, P. del Amo
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.1005.3717

openalex publication_date 2010/05/20 · openalex created_date 2024/04/10 · openalex updated_date 2026/07/28

Abstract

We report an analysis of charmless hadronic decays of charged B mesons to the final state K+ pi0 pi0, using a data sample of 470.9 +/- 2.8 million BBbar events collected with the BaBar detector at the Upsilon(4S) resonance. We observe an excess of signal events with a significance above 10 standard deviations including systematic uncertainties and measure the branching fraction to be BF(B+ -> K+ pi0 pi0) = (15.5 +/- 1.1 +/- 1.6) x 10^(-6), where the uncertainties are statistical and systematic, respectively.

Related

• Measurement of the Branching Fraction for B⁺ --> K^*0 pi⁺
• Improved Measurements of Branching Fractions for B0 -> pi+pi-, K+pi-, and Search for K+K- at BaBar
• Amplitude Analysis of the Decay B0 -> K+pi-pi0
• Charmless hadronic B decays at BABAR
• Measurement of branching fractions for two-body charmless B decays to charged pions and kaons at BABAR