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{Lambda}* hypernuclei with chiral dynamics

Uchino, Toshitaka·Hyodo, Tetsuo·Oka, Makoto
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Abstract

As a strangeness S = -1 and baryon number B = 2 system, the two-body bound state of {Lambda}* = {Lambda}(1405) and a nucleon is studied. To solve the {Lambda}*N system, we construct the {Lambda}*N potential by extending the Juelich model with couplings estimated in the chiral unitary approach. We have the {Lambda}*N quasi-bound state with the mass, M{sub {Lambda}}*N{approx}2366 MeV which is shallowly bound with the binding energy B{approx}9 MeV in terms of the K-barNN system. Decay width of the fall apart process, where the {Lambda}*N resonance decays to {pi}{Sigma}N with a nucleon being as a spectator, is estimated to be {Gamma}{sub F.A}{approx}49 MeV.

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS73 NUCLEAR PHYSICS AND RADIATION PHYSICSALPHA DECAY RADIOISOTOPESBARYON NUMBERBARYONSBINDING ENERGYBORON 9BORON ISOTOPESBOUND STATECHIRAL SYMMETRYCHIRALITYELEMENTARY PARTICLESENERGYENERGY RANGEFERMIONSHADRONSHYPERNUCLEIHYPERONSISOTOPESLAMBDA BARYONSLAMBDA-1405 BARYONSLIGHT NUCLEIMANY-BODY PROBLEMMATHEMATICAL MODELSMEV RANGEN*BARYONSNUCLEAR FRAGMENTSNUCLEAR MODELSNUCLEINUCLEONSODD-EVEN NUCLEIPARTICLE PROPERTIESPOTENTIALSRADIOISOTOPESSTRANGE PARTICLESSTRANGENESSSYMMETRYTWO-BODY PROBLEM

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Uchino, Toshitaka, Hyodo, Tetsuo, Oka, Makoto. 2011-10-21. {Lambda}* hypernuclei with chiral dynamics. https://doi.org/10.1063/1.3647460

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