Search For Radiative Decays Of D^0 Mesons At The Babar Detector

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Title:	Search For Radiative Decays Of D^0 Mesons At The Babar Detector
Author:	Regensburger, Joseph James
Description:	I detail my work searching for the radiative decays of D^0 mesons, e.g. D^0 → φγ, within 381.7fb-1 of e^+e− data collected by the BABAR detector at the PEP-II asymmetric-energy e^+e− collider at SLAC from 1999-2006. Such decays are not well described under perturbative techniques typically used to estimate the frequency of decays under the Standard Model of Particle Physics (SM), and as such are valuable laboratories to investigate quantum chromodyanmics calculations (QCD). I specifically examine the Cabibbo-suppressed (CS) D^0 → φγ decay as well as search for the yet unobserved Cabibbo-favored (CF) decay, D^0 → K̅0γ. I measure the branching fractions of each mode relative to the decay D^0 → K−π^+ and find: B(D^0 → φγ) = (2.73 ± 0.30 ± 0.26) × 10-5 and B(D^0 → K̅0γ) = (3.22 ± 0.20 ± 0.27) × 10-4 These results are preliminary and currently under review by the BABAR collaboration ahead of publication. In these expressions the first error is due to statistical sources and the second is due to systematic sources.
Permanent Link:	http://rave.ohiolink.edu/etdc/view?acc_num=osu1211510671 http://hdl.handle.net/2374.OX/106543
Date:	2008

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