Partial Wave Analysis of the Reaction $p(3.5GeV)+p\to p{K}^{+}\Lambda$ to Search for the "$pp{K}^{-}$" Bound State

Abstract

Employing the Bonn-Gatchina partial wave analysis framework (PWA), we have analyzed HADES data of the reaction $p(3.5GeV)+p\to p{K}^{+}\Lambda$. This reaction might contain information about the kaonic cluster "$pp{K}^{-}$" via its decay into $p\Lambda$. Due to interference effects in our coherent description of the data, a hypothetical $\overline{K}NN$ (or, specifically "$pp{K}^{-}$") cluster signal must not necessarily show up as a pronounced feature (e.g. a peak) in an invariant mass spectra 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 $\overline{K}NN$ cluster. At a confidence level of CL${}_s$=95\% such a cluster can not contribute more than 2-12\% to the total cross section with a $p{K}^{+}\Lambda$ 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.

arXiv comment7 Pages, 5 Figures

References in corpus (37)

• Shapiro delay measurement of a two solar mass neutron star
• A Massive Pulsar in a Compact Relativistic Binary
• Confidence Level Computation for Combining Searches with Small Statistics
• Non perturbative chiral approach to s-wave \bar{K}N interactions
• Chiral Dynamics and the Low Energy Kaon-Nucleon Interaction
• A New Measurement of Kaonic Hydrogen X rays
• Relativistic chiral SU(3) symmetry, large N_c sum rules and meson-baryon scattering
• The High-Acceptance Dielectron Spectrometer HADES
• Faddeev calculation of a $K^{-}pp$ quasi-bound state
• Strange dibaryon resonance in the anti-KNN--piYN system
• Variational calculation of the ppK^- system based on chiral SU(3) dynamics
• Indication of a deeply bound compact K-pp state formed in the pp -> p Lambda K+ reaction at 2.85 GeV
• The basic K nuclear cluster K- pp and its enhanced formation in the p + p -> K+ + X reaction
• A critical view on the deeply bound K^- pp system
• Realistic calculations of Kbar-N-N, Kbar-N-N-N, and Kbar-Kbar-N-N quasibound states
• $\bar{K}$ nuclear bound states in a dynamical model
• Partial wave decomposition of pion and photoproduction amplitudes
• Energy dependence of barKN interactions and resonance pole of strange dibaryons
• Variational calculations for K-few-nucleon systems
• Baryonic resonances close to the Kbar-N threshold: the case of Lambda(1405) in pp collisions
• Search for $K^{-}pp$ bound state via $\gamma d\to K^{+}{\pi }^{-}X$ reaction at $E_{\gamma }=1.5-2.4$ GeV
• Kaonic nuclei excited by the $(K^{-},N)$ reaction
• Partial decay widths of baryons in the spin-momentum operator expansion method
• Faddeev calculations of the $\bar{K}NN$ system with chirally-motivated $\bar{K}N$ interaction. II. The $K^{-}pp$ quasi-bound state
• Massive Neutron Stars with Antikaon Condensates in a Density Dependent Hadron Field Theory
• Baryonic resonances close to the Kbar-N threshold: the case of Sigma(1385)^+ in pp collisions
• Recent studies of kaonic atoms and nuclear clusters
• Production of Lambda and Sigma^0 hyperons in proton-proton collisions
• Partial decay widths of baryons in the spin-momentum operator expansion method
• pK+Λfinal state: towards the extraction of the ppK- contribution
• Influence of N*-resonances on hyperon production in the channel pp->K+ Lambda p at 2.95, 3.20 and 3.30 GeV/c beam momentum
• Search for the deeply bound $K^{-}pp$ state from the semi-inclusive forward-neutron spectrum in the in-flight $K^{-}$ reaction on helium-3
• Improved Fixed Center Approximation of the Faddeev equations for the $\bar{K}NN$ system with S=0
• The study of the proton-proton collisions at the beam momentum 1628 MeV/c
• Formation of the $S=-1$ resonance X(2265) in the reaction $pp->X+K^{+}$ at 2.50 and 2.85 GeV
• Study of $K^{-}$ absorption at rest in nuclei followed by $p\Lambda$ emission
• Molecule model for kaonic nuclear cluster anti-KNN

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