DN interaction from meson exchange

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Other literature type 01 Feb 2011Embargo end date: 01 Jan 2010 Brazil, Germany, Netherlands, Spain English Publisher:Springer Science and Business Media LLCJournal:The European Physical Journal A, volume 47 (issn: 1434-6001, eissn: 1434-601X,

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Authors: Haidenbauer, J.; Krein, G.; Meißner, U. G.; Tolos, L.;

doi: 10.1140/epja/i2011-11018-3 , 10.48550/arxiv.1008.3794

arXiv: 1008.3794

handle: 10261/37391 , 11370/b192f374-ee2c-4e5f-9b1e-f4b111d701f7 , 11449/72302

DN interaction from meson exchange

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Abstract

A model of the DN interaction is presented which is developed in close analogy to the meson-exchange KbarN potential of the Juelich group utilizing SU(4) symmetry constraints. The main ingredients of the interaction are provided by vector meson (rho, omega) exchange and higher-order box diagrams involving D*N, DΔ, and D*Δintermediate states. The coupling of DN to the pi-Lambda_c and pi-Sigma_c channels is taken into account. The interaction model generates the Lambda_c(2595) resonance dynamically as a DN quasi-bound state. Results for DN total and differential cross sections are presented and compared with predictions of an interaction model that is based on the leading-order Weinberg-Tomozawa term. Some features of the Lambda_c(2595) resonance are discussed and the role of the near-by pi-Sigma_c threshold is emphasized. Selected predictions of the orginal KbarN model are reported too. Specifically, it is pointed out that the model generates two poles in the partial wave corresponding to the Lambda(1405) resonance.

14 pages, 8 figures

Countries

Brazil, Germany, Netherlands, Spain

Related Organizations

Spanish National Research Council
Spain
University of Groningen
Netherlands
University of Bonn
Germany
Autonomous University of Barcelona
Spain
Universidade Estadual Paulista - UNESP
Brazil

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Keywords

QUARKONIUM, interaction: (D nucleon), Nuclear and High Energy Physics, interaction: model, Nuclear Theory, X-RAYS, partial wave, pole, LAMBDA(1405), FOS: Physical sciences, BOUND-STATES, CHARM, mass spectrum, Nuclear Theory (nucl-th), Lambda/c(2593), phase shift, numerical calculations: interpretation of experiments, High Energy Physics - Phenomenology (hep-ph), meson: exchange, symmetry: SU(4), info:eu-repo/classification/ddc/530, MESIC NUCLEI, anti-K nucleon: interaction, Lambda(1405), Feynman graph: higher-order, CHIRAL DYNAMICS, HYDROGEN, RESONANCE, vector meson, coupled channel, High Energy Physics - Phenomenology, differential cross section, KAON-NUCLEON INTERACTIONS

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