Comparative analysis of the narrow resonances
2008
Several narrow resonance features in the system of two K S mesons were found on the basis of experimental data obtained by using the 6-m spectrometer of the Institute of Theoretical and Experimental Physics (ITEP, Moscow). Three resonances, X(1070), X(1545), and f J (2220), are considered in the present study. An interference with the background is observed for the X(1545) resonance. It is shown that X(1070) and f J (2220) resonances are produced under nearly identical kinematical conditions characterized by high transverse momenta and the production of accompanying extra pions.
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