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Analysis of pion production data measured by HADES in proton-proton collisions at 1.25 GeV
- Source :
- Eur.Phys.J.A, Eur.Phys.J.A, 2015, 51 (10), pp.137. ⟨10.1140/epja/i2015-15137-5⟩, European Physical Journal A, Eur.Phys.J.A, 2015, 51 (10), pp.137. 〈10.1140/epja/i2015-15137-5〉, European Physical Journal A, EDP Sciences, 2015, 51 (10), pp.137. ⟨10.1140/epja/i2015-15137-5⟩, Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos), Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação, instacron:RCAAP
- Publisher :
- Springer Nature
-
Abstract
- Baryon resonance production in proton-proton collisions at a kinetic beam energy of 1.25 GeV is investigated. The multi-differential data were measured by the HADES collaboration. Exclusive channels with one pion in the final state ($np\pi^{+}$ and $pp\pi^{0}$) were put to extended studies based on various observables in the framework of a one-pion exchange model and with solutions obtained within the framework of a partial wave analysis (PWA) of the Bonn-Gatchina group. The results of the PWA confirm the dominant contribution of the $\Delta$(1232), yet with a sizable impact of the $N$(1440) and non-resonant partial waves.<br />Comment: 12 pages, 6 figures
- Subjects :
- p p: scattering
J.2
Nuclear and High Energy Physics
Proton
Partial wave analysis
Nuclear Theory
FOS: Physical sciences
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Kinetic energy
7. Clean energy
01 natural sciences
Resonance (particle physics)
beam: energy
Nuclear physics
Pion
0103 physical sciences
1.25 GeV
angular distribution
[ PHYS.NEXP ] Physics [physics]/Nuclear Experiment [nucl-ex]
Nuclear Experiment (nucl-ex)
010306 general physics
Nuclear Experiment
Monte Carlo
total cross section
hydrogen: target
Physics
N(1440)
energy: kinetic
010308 nuclear & particles physics
parametrization
Observable
partial wave analysis
p: beam
helicity
Darmstadt Lab
Delta(1232)
Baryon
HADES
baryon resonance: production
pi: final state
mass
Production (computer science)
exchange: one-pion
High Energy Physics::Experiment
missing-mass
experimental results
Subjects
Details
- Language :
- English
- ISSN :
- 14346001 and 1434601X
- Volume :
- 51
- Issue :
- 10
- Database :
- OpenAIRE
- Journal :
- The European Physical Journal A
- Accession number :
- edsair.doi.dedup.....8515d471f4f415e7074b4135e2db793e
- Full Text :
- https://doi.org/10.1140/epja/i2015-15137-5