Search for the radiative leptonic decay D+→γe+νe

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doi:10.1103/physrevd.95.071102

Abstract

Using an electron-positron collision data sample of 2.93 fb−1 collected at a center-of-mass energy of s=3.773 GeV with the BESIII detector, we present the first search for the radiative leptonic decay D+→γe+νe. The analysis is performed with a double-tag method. We do not observe a significant D+→γe+νe signal, and obtain an upper limit on the branching fraction of D+→γe+νe decay with the energy of radiative photon larger than 10 MeV of 3.0×10−5 at the 90% confidence level.Received 21 February 2017DOI:https://doi.org/10.1103/PhysRevD.95.071102© 2017 American Physical SocietyPhysics Subject Headings (PhySH)Research AreasForm factorsQuantum chromodynamicsParticles & Fields

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