Delta (1232) Dalitz decay in proton-proton collisions at T=1.25 GeV measured with HADES at GSI
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F17%3A00477319" target="_blank" >RIV/61389005:_____/17:00477319 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevC.95.065205" target="_blank" >http://dx.doi.org/10.1103/PhysRevC.95.065205</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevC.95.065205" target="_blank" >10.1103/PhysRevC.95.065205</a>
Alternative languages
Result language
angličtina
Original language name
Delta (1232) Dalitz decay in proton-proton collisions at T=1.25 GeV measured with HADES at GSI
Original language description
We report on the investigation of Delta(1232) production and decay in proton-proton collisions at a kinetic energy of 1.25 GeV measured with HADES. Exclusive dilepton decay channels ppe(+) e(-) and ppe(+) e(-). have been studied and compared with the partial-wave analysis of the hadronic pp pi(0) channel. They allow to access both Delta(+) -> p pi(0)( e(+) e(-) gamma) and Delta(+) -> pe(+) e(-) Dalitz decay channels. The perfect reconstruction of the well-known pi(0) Dalitz decay serves as a proof of the consistency of the analysis. The Delta Dalitz decay is identified for the first time and the sensitivity to N-Delta transition form factors is tested. The Delta (1232) Dalitz decay branching ratio is also determined for the first time. Our result is (4.19 +/- 0.62 syst. +/- 0.34 stat.) x 10(-5), albeit with some model dependence.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10304 - Nuclear physics
Result continuities
Project
<a href="/en/project/GA13-06759S" target="_blank" >GA13-06759S: Experimental Study of Hadrons in the Baryonic Medium</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review C
ISSN
2469-9985
e-ISSN
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Volume of the periodical
95
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
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UT code for WoS article
000403072800010
EID of the result in the Scopus database
2-s2.0-85020829323