ISSN:
1434-6052
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Results are presented on the charge exchange reaction $$\bar pp \to \bar nn$$ and $$\bar np$$ annihilations from bubble chamber exposures to antiproton beam of momenta 700 and 760 MeV/c. The differential cross section of $$\bar pp \to \bar nn$$ shows a forward spike followed by a clear dip bump structure. Total annihilation cross section of $$\bar np$$ for average $$\bar n$$ momentum of 700 MeV/c has been evaluated to be 55.4±2.2 mb. The multiplicity, Feynmanx andp T 2 distributions for inclusive charged pions in $$\bar pp$$ and $$\bar np$$ annihilations are found to be similar. The emission of charged pions from $$\bar np$$ annihilations are found to be consistent with thermodynamic models with temperature ∼110 MeV.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01575719