@Article{BABARCollaborationLees_etal2012,
author="BABAR Collaboration (Lees, J. P. et al
and Lopez-March, N.
and Martinez-Vidal, F.
and Oyanguren, A.",
title="Search for the decay D-0 -> gamma gamma and measurement of the branching fraction for D-0 -> pi(0)pi(0)",
journal="Physical Review D",
year="2012",
publisher="Amer Physical Soc",
volume="85",
number="9",
pages="091107--8pp",
abstract="We search for the rare decay of the D-0 meson to two photons, D-0 -> gamma gamma, and present a measurement of the branching fraction for a D-0 meson decaying to two neutral pions, B(D-0 -> pi(0)pi(0)). The data sample analyzed corresponds to an integrated luminosity of 470.5 fb(-1) collected by the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) collider at SLAC. We place an upper limit on the branching fraction, B(D-0 -> gamma gamma) < 2.2 x 10(-6), at 90{\%} confidence level. This limit improves on the existing limit by an order of magnitude. We also find B(D-0 -> pi(0)pi(0)) = (8.4 +/- 0.1 +/- 0.4 +/- 0.3 +/-) x 10(-4).",
optnote="WOS:000304255300002",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1037), last updated on Thu, 14 Jun 2012 12:09:51 +0000",
issn="1550-7998",
doi="10.1103/PhysRevD.85.091107",
opturl="http://arxiv.org/abs/arXiv:1110.6480",
opturl="https://doi.org/10.1103/PhysRevD.85.091107",
archivePrefix="arXiv",
eprint="arXiv:1110.6480",
language="English"
}