RESULTS OF SEARCH FOR NARROW DIPROTON STRUCTURES IN THE PN-]PP-PI(-) REACTION AT 1.98 GEV C/

Authors
ABRAMOV BM DUKHOVSKOY IA FEDORETS VS KHANOV AI KRESTNIKOV YS KRUTENKOVA AP KULIKOV VV MATSYUK MA RADKEVICH IA STARODUMOV AN SUTORMIN AI
Citation
Bm. Abramov et al., RESULTS OF SEARCH FOR NARROW DIPROTON STRUCTURES IN THE PN-]PP-PI(-) REACTION AT 1.98 GEV C/, Zeitschrift fur Physik. C, Particles and fields, 69(3), 1996, pp. 409-413
Citations number
46
Categorie Soggetti
Physics, Particles & Fields
Journal title
Zeitschrift fur Physik. C, Particles and fields → ACNP
ISSN journal
01709739
Volume
69
Issue
3
Year of publication
1996
Pages
409 - 413
Database
ISI
SICI code
0170-9739(1996)69:3<409:ROSFND>2.0.ZU;2-4
Abstract
The effective mass spectrum of two protons from the reaction p + n --> pp + pi(-)(backward) was investigated. The work was carried out at IT EP using a 3-meter magnet spectrometer and a proton beam of 1.98 GeV/c momentum. Liquid deuterium was used as a target. The presented mass s pectrum includes about 34000 events. No statistically significant sign als from narrow dibaryons were found in the mass reg;ion 1.89 - 2.17 G eV/c(2); the upper limits on narrow dibaryon production cross-section are given. At a mass of 1.8775 GeV/c(2) a narrow enhancement was found . A more detailed investigation of the observed phenomenon is needed.