| dc.contributor.author | The BESIII collaboration | en_US |
| dc.contributor.author | Kolcu, Onur Buğra | en_US |
| dc.date.accessioned | 2019-10-29T17:49:36Z | |
| dc.date.available | 2019-10-29T17:49:36Z | |
| dc.date.issued | 2015 | |
| dc.identifier.issn | 1550-7998 | |
| dc.identifier.uri | https://dx.doi.org/10.1103/PhysRevD.92.071101 | |
| dc.identifier.uri | https://hdl.handle.net/20.500.12294/2224 | |
| dc.description.abstract | Using 2.92 fb-1 of electron-positron annihilation data collected at a center-of-mass energy of s=3.773 GeV with the BESIII detector, we present an improved measurement of the branching fraction B(D+??e+?e)=(1.63±0.11±0.08)×10-3. The parameters defining the corresponding hadronic form factor ratios at zero momentum transfer are determined for the first time; we measure them to be rV=1.24±0.09±0.06 and r2=1.06±0.15±0.05. The first and second uncertainties are statistical and systematic, respectively. We also search for the decay D+??e+?e. An improved upper limit B(D+??e+?e)<1.3×10-5 is set at 90% confidence level. © 2015 American Physical Society. | en_US |
| dc.language.iso | eng | en_US |
| dc.publisher | American Physical Society | en_US |
| dc.relation.ispartof | Physical Review D - Particles, Fields, Gravitation and Cosmology | en_US |
| dc.identifier.doi | 10.1103/PhysRevD.92.071101 | en_US |
| dc.identifier.doi | 10.1103/PhysRevD.92.071101 | |
| dc.rights | info:eu-repo/semantics/openAccess | en_US |
| dc.title | Measurement of the form factors in the decay D+ ??e+?e and search for the decay D+ ??e+?e | en_US |
| dc.type | article | en_US |
| dc.department | İstanbul Arel Üniversitesi, Meslek Yüksekokulu, Optisyenlik Programı | en_US |
| dc.identifier.volume | 92 | en_US |
| dc.identifier.issue | 7 | en_US |
| dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
