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

Agakishiev, G.; Arnold, O.; Belver, D.; Belyaev, A.; Krása, Antonín; Křížek, Filip; Kugler, Andrej; Sobolev, Yuri, G.; Tlustý, Pavel; Wagner, Vladimír

doi:https://dx.doi.org/10.1016/j.physletb.2015.01.032

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

1.

SYSNO ASEP	0443222
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Partial wave analysis of the reaction p(3.5 GeV) + p -> pK(+) Lambda to search for the "ppK(-)" bound state
Author(s)	Agakishiev, G. (RU) Arnold, O. (DE) Belver, D. (ES) Belyaev, A. (RU) Krása, Antonín (UJF-V) Křížek, Filip (UJF-V)_{RID, ORCID, SAI} Kugler, Andrej (UJF-V)_{RID, ORCID, SAI} Sobolev, Yuri, G. (UJF-V)_ORCID Tlustý, Pavel (UJF-V)_{ORCID, SAI} Wagner, Vladimír (UJF-V)_{RID, ORCID, SAI}
Number of authors	96
Source Title	Physics Letters. B. - : Elsevier - ISSN 0370-2693 Roč. 742, MAR (2015), s. 242-248
Number of pages	7 s.
Publication form	Print - P
Language	eng - English
Country	NL - Netherlands
Keywords	kaonic nuclei ; anti-kaon-nucleon physics ; ppK(-) ; low energy ; QCD ; partial wave analysis
Subject RIV	BG - Nuclear, Atomic and Molecular Physics, Colliders
R&D Projects	LG12007 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	GA13-06759S GA ČR - Czech Science Foundation (CSF)
Institutional support	UJF-V - RVO:61389005
UT WOS	000350555900033
EID SCOPUS	84922359491
DOI	10.1016/j.physletb.2015.01.032
Annotation	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) without a 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 between 0.7 mu b and 4.2 mu b, respectively. The range of the upper limit depends on the assumed cluster mass, width and production process.
Workplace	Nuclear Physics Institute
Contact	Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228
Year of Publishing	2016

Number of the records: 1