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New Evidence for Supernarrow Dibaryons Production in pd Interactions | | L.V. Fil’kov
; V.L. Kashevarov
; E.S. Konobeevski
; M.V. Mordovskoy
; S.I. Potashev
; V.A. Simonov
; V.M. Skorkin
; S.V. Zuev
; | | Date: |
23 Jun 2000 | | Journal: | Eur.Phys.J. A12 (2001) 369-374 | | Subject: | hep-ex hep-ph nucl-ex nucl-th | | Abstract: | The analysis of new experimental data, obtained at the Proton Linear Accelerator of INR, with the aim to search for supernarrow dibaryons in the $pd o ppX_1$ and $pd o pdX_2$ reactions is presented. Narrow peaks with an experimental width of 5 MeV at masses of 1904$pm 2$, 1926$pm 2$, and 1942$pm 2$ MeV have been observed in missing mass $M_{pX_1}$ spectra. In the missing mass $M_{X_1}$ spectra, the peaks at $M_{X_1}=966pm 2$, 986$pm 2$, and 1003$pm 2$ MeV have been found. The analysis of the data obtained leads to the conclusion that the observed peaks in $M_{pX_1}$ spectra are most likely supernarrow dibaryons, the decay of which into two nucleons is forbidden by the Pauli exclusion principle. An alternative interpretation of the spectra by assuming a decay of the supernarrow dibaryons in "exotic baryon states" with masses $M_{X_1}$ is discussed. | | Source: | arXiv, hep-ex/0006029 | | Services: | Forum | Review | PDF | Favorites | |
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