# Feasibility studies of time-like proton electromagnetic form factors at PANDA at FAIR

Abstract : The results of simulations for future measurements of electromagnetic form factors at \PANDA (FAIR) within the PandaRoot software framework are reported. The statistical precision at which the proton form factors can be determined is estimated. The signal channel $\bar p p \to e^+ e^-$ is studied on the basis of two different but consistent procedures. The suppression of the main background channel, i.e. the $\bar p p \to \pi^+ \pi^-$, is studied. Furthermore, the background versus signal efficiency, statistic and systematic uncertainties on the extracted proton form factors are evaluated using to the two different procedures. The results are consistent with those of a previous simulation study using an older, simplified framework. However, a slightly better precision is achieved in the PandaRoot study in a large range of momentum transfer, assuming the nominal beam condition and detector performances.
Type de document :
Pré-publication, Document de travail
2016
Domaine :

http://hal.in2p3.fr/in2p3-01332603
Contributeur : Sophie Heurteau <>
Soumis le : jeudi 16 juin 2016 - 11:33:39
Dernière modification le : mercredi 31 janvier 2018 - 12:16:20

### Identifiants

• HAL Id : in2p3-01332603, version 1
• ARXIV : 1606.01118

### Citation

B. Singh, W. Erni, B. Krusche, M. Steinacher, N. Walford, et al.. Feasibility studies of time-like proton electromagnetic form factors at PANDA at FAIR. 2016. 〈in2p3-01332603〉

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