Feasibility studies for the measurement of time-like proton electromagnetic form factors from pp→μ+μ−atPANDA at FAIR
Authors:
- G. Barucca,
- M. Domagała,
- G. Filo,
- E. Lisowski,
- F. Lisowski,
- M. Michałek,
- P. Poznański,
- J. Płażek
Abstract
This paper reports on Monte Carlo simulation results for future measurements of the moduli of time-like proton electromagnetic form factors, vertical bar G(E)vertical bar and vertical bar G(M)vertical bar, using the (p) over barp -> mu(+)mu(-) reaction at PANDA (FAIR). The electromagnetic form factors are fundamental quantities parameterizing the electric and magnetic structure of hadrons. This work estimates the statistical and total accuracy with which the form factors can be measured at PANDA, using an analysis of simulated data within the PandaRoot software framework. The most crucial background channel is (p) over barp -> pi(+)pi(-), due to the very similar behavior of muons and pions in the detector. The suppression factors are evaluated for this and all other relevant background channels at different values of antiproton beam momentum. The signal/background separation is based on a multivariate analysis, using the Boosted Decision Trees method. An expected background subtraction is included in this study, based on realistic angular distributions of the background contribution. Systematic uncertainties are considered and the relative total uncertainties of the form factor measurements are presented. Research was done during realisation of a large scale, multidisciplinary, international scientific project. The issues related to the design of the detector are included in the discipline of Mechanical Engineering.
- Record ID
- CUTf710bef9efde4c1aaa45e8cf8ba6562d
- Publication categories
- ;
- Author
- Total number of authors
- 484
- Journal series
- European Physical Journal A, ISSN 1434-6001, e-ISSN 1434-601X
- Issue year
- 2021
- Vol
- 57
- No
- 1
- Pages
- [1-22]
- Article number
- 30
- Other elements of collation
- rys.; tab.; wykr.; Bibliografia (na s.) - 21-22; Bibliografia (liczba pozycji) - 95; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 57, Iss. 1
- Keywords in English
- PANDA, FAIR, electromagnetic form factors, measurement, mechanical construction design, FEM
- DOI
- DOI:10.1140/epja/s10050-020-00333-3 Opening in a new tab
- URL
- https://link.springer.com/article/10.1140/epja/s10050-020-00333-3 Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 100
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTf710bef9efde4c1aaa45e8cf8ba6562d/
- URN
urn:pkr-prod:CUTf710bef9efde4c1aaa45e8cf8ba6562d
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.