dc.contributor.author | The BESIII collaboration | en_US |
dc.contributor.author | Kolcu, Onur Buğra | en_US |
dc.date.accessioned | 2019-10-29T17:49:38Z | |
dc.date.available | 2019-10-29T17:49:38Z | |
dc.date.issued | 2015 | |
dc.identifier.issn | 1550-7998 | |
dc.identifier.uri | https://dx.doi.org/10.1103/PhysRevD.91.112004 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12294/2234 | |
dc.description.abstract | Using data samples collected with the BESIII detector at the BEPCII collider, we measure the Born cross section of e+e-?pp¯ at 12 center-of-mass energies from 2232.4 to 3671.0 MeV. The corresponding effective electromagnetic form factor of the proton is deduced under the assumption that the electric and magnetic form factors are equal (|GE|=|GM|). In addition, the ratio of electric to magnetic form factors, |GE/GM|, and |GM| are extracted by fitting the polar angle distribution of the proton for the data samples with larger statistics, namely at s=2232.4 and 2400.0 MeV and a combined sample at s=3050.0, 3060.0 and 3080.0 MeV, respectively. The measured cross sections are in agreement with recent results from BABAR, improving the overall uncertainty by about 30%. The |GE/GM| ratios are close to unity and consistent with BABAR results in the same q2 region, which indicates the data are consistent with the assumption that |GE|=|GM| within uncertainties. © 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.91.112004 | en_US |
dc.identifier.doi | 10.1103/PhysRevD.91.112004 | |
dc.rights | info:eu-repo/semantics/openAccess | en_US |
dc.title | Measurement of the proton form factor by studying e+e- ?p p ¯ | en_US |
dc.type | article | en_US |
dc.department | İstanbul Arel Üniversitesi, Meslek Yüksekokulu, Optisyenlik Programı | en_US |
dc.identifier.volume | 91 | en_US |
dc.identifier.issue | 11 | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |