Search for the radiative leptonic decay <i>D<SUP>+</SUP> → γe <SUP>+</SUP> ν<sub>e</sub></i>
PHYSICAL REVIEW D, vol.95, no.7, 2017 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 95 Issue: 7
- Publication Date: 2017
- Doi Number: 10.1103/physrevd.95.071102
- Journal Name: PHYSICAL REVIEW D
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Open Archive Collection: AVESIS Open Access Collection
- Bursa Uludag University Affiliated: No
Abstract
Using an electron-positron collision data sample of 2.93 fb(-1) collected at a center-of-mass energy of root s = 3.773 GeV with the BESIII detector, we present the first search for the radiative leptonic decay D+ -> gamma e(+)nu(e). The analysis is performed with a double-tag method. We do not observe a significant D+ -> gamma e(+)nu(e) signal, and obtain an upper limit on the branching fraction of D+ -> gamma e(+)nu(e) decay with the energy of radiative photon larger than 10 MeV of 3.0 x 10(-5) at the 90% confidence level.