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Abstract |
We investigate the Xi & lowast;resonances within the molecular picture, where these states are dynamically generated as poles in the unitarized scattering amplitudes arising from the coupled-channel interactions of K & lowast;-Lambda, K & lowast;-Sigma 0, rho-Xi 0, K & lowast;0 Sigma-, rho 0 Xi-, omega Xi-,and phi Xi-. The interaction kernel is derived from the local hidden gauge formalism, while the unitarization procedure employs a hybrid method that combines cutoff and dimensional regularizations in the evaluation of the loop function. From a detailed spectroscopic analysis, we identify two S = -2 baryon states whose properties are compatible with some of the Xi & lowast;resonances listed in the Review of Particle Physics. To explore their possible experimental signatures, we compute the femtoscopic correlation functions for all the vector-baryon pairs considered in the present study, using realistic estimates of production weights and varying source sizes R = 1, 1.1, 1.2, 1.3, 1.5 fm . |
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