Investigation of the Σ0 Production Mechanism in p(3.5 GeV)+p Collisions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F24%3A00583170" target="_blank" >RIV/61389005:_____/24:00583170 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1140/epja/s10050-023-01214-1" target="_blank" >https://doi.org/10.1140/epja/s10050-023-01214-1</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epja/s10050-023-01214-1" target="_blank" >10.1140/epja/s10050-023-01214-1</a>
Alternative languages
Result language
angličtina
Original language name
Investigation of the Σ0 Production Mechanism in p(3.5 GeV)+p Collisions
Original language description
The production of Σ hyperons in proton proton collisions at a beam kinetic energy of 3.5 GeV impinging on a liquid hydrogen target was investigated using data collected with the HADES setup. The total production cross section is found to be σ(pK+Σ) = 17.7 ± 1.7 (stat) ± 1.6 (syst) µb. Differential cross section distributions of the exclusive channel pp→ pK+Σ were analyzed in the center-of-mass, Gottfried–Jackson and helicity reference frames for the first time at the excess energy of 556 MeV. The data support the interplay between pion and kaon exchange mechanisms and clearly demonstrate the contribution of interfering nucleon resonances decaying to K +Σ . The Bonn–Gatchina partial wave analysis was employed to analyse the data. Due to the limited statistics, it was not possible to obtain an unambiguous determination of the relative contribution of intermediate nucleon resonances to the final state. However nucleon resonances with masses around 1.710 GeV / c 2 (N ∗(1710)) and 1.900 GeV / c 2 (N ∗(1900) or Δ ∗(1900)) are preferred by the fit.
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
10303 - Particles and field physics
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Physical Journal A
ISSN
1434-6001
e-ISSN
1434-601X
Volume of the periodical
60
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
16
Pages from-to
18
UT code for WoS article
001152850600001
EID of the result in the Scopus database
2-s2.0-85183588012