Possible production of highly excited π- -Ne atoms in collisions of 70-GeV protons with Mg nuclei
Gur'ev M. P. , Denisov A. S. , Zhelamkov A. V. , Ivanov Yu. M., Lapina L. P. , Levchenko P. M. , Petrunin A. A. , Platonov Yu. P. , Sergeev A. G. , Smirnov A. I. , Suvorov V. M. , Fedin O. L.
The possible production of π" atoms in the decay of hadron resonances is discussed. This mechanism should lead to a filling of states with ΙφΟ. It might be observed through the detection of characteristic χ radiation. An attempt has been made to measure the intensity of the 3d-2p line of the ir--Ne atom emitted by a Mg target in a 70-GeV proton beam. A crystal-diffraction spectrometer for measuring the x-ray emission of hadronic atoms was used. A peak at a level zz2A errors was observed; the corresponding cross section is ~0.5 mb. This value is interpreted as an experimental upper limit on the magnitude of the effect.
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![](/ps/1203/article_18169_800_head.png "The possible production of <i>π" </i>atoms in the decay of hadron resonances is discussed. This mechanism should lead to a filling of states with <i>ΙφΟ. </i>It might be observed through the detection of characteristic χ radiation. An attempt has been made to measure the intensity of the <i>3d-2p </i>line of the ir<sup>-</sup>-Ne atom emitted by a Mg target in a 70-GeV proton beam. A crystal-diffraction spectrometer for measuring the x-ray emission of hadronic atoms was used. A peak at a level <i>zz2A </i>errors was observed; the corresponding cross section is ~0.5 mb. This value is interpreted as an experimental upper limit on the magnitude of the effect.")