Partial wave analysis of the reaction p(3.5 GeV) + p -> pK(+) Lambda to search for the "ppK(-)" bound state

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F15%3A00443222" target="_blank" >RIV/61389005:_____/15:00443222 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.physletb.2015.01.032" target="_blank" >http://dx.doi.org/10.1016/j.physletb.2015.01.032</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.physletb.2015.01.032" target="_blank" >10.1016/j.physletb.2015.01.032</a>

Result language
angličtina
Original language name
Partial wave analysis of the reaction p(3.5 GeV) + p -> pK(+) Lambda to search for the "ppK(-)" bound state
Original language description
Employing the Bonn-Gatchina partial wave analysis framework (PWA), we have analyzed HADES data of the reaction p(3.5 GeV) + p -> pK(+) Lambda. This reaction might contain information about the kaonic cluster "ppK(-)" (with quantum numbers J(P)=0(-) and total isospin I=1/2) via its decay into p Lambda. Due to interference effects in our coherent description of the data, a hypothetical (K) over bar NN(or, specifically "ppK-") cluster signal need not necessarily show up as a pronounced feature (e.g. a peak) in an invariant mass spectrum like p Lambda. Our PWA analysis includes a variety of resonant and non-resonant intermediate states and delivers a good description of our data (various angular distributions and two-hadron invariant mass spectra) withouta contribution of a (K) over bar NN cluster. At a confidence level of CLs=95% such a cluster cannot-contribute more than 2-12% to the total cross section with a pK(+) Lambda final state, which translates into a production cross-section be
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BG - Nuclear, atomic and molecular physics, accelerators
OECD FORD branch
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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

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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