Kaon-nucleon scattering lengths from kaonic deuterium experiments revisited

M. D\"oring; U.-G. Mei{\ss}ner

Kaon-nucleon scattering lengths from kaonic deuterium experiments revisited

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arxiv 1108.5912 v1 pith:WF2HHGPR submitted 2011-08-30 nucl-th hep-exhep-phnucl-ex

M. Döring , U.-G. Mei{ss}ner This is my paper

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keywords scatteringkaon-deuteronkaoniclengthallowedanalysecollaborationdata

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We analyse the impact of the recent measurement of kaonic hydrogen X rays by the SIDDHARTA collaboration on the allowed ranges for the kaon-deuteron scattering length in the framework of non-relativistic effective field theory. Based on data from KN scattering only, we predict the kaon-deuteron scattering length A_Kd= (-1.46 + i 1.08) fm, with an estimated uncertainty of about 25% in both the real and the imaginary part.

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Scattering data and correlation function for the $K f_1(1285)$ interaction
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Assuming f1(1285) is a K* anti-K molecule, the K f1 system is predicted to have a near-threshold bound/resonant state with a distinctive correlation function.

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