Work

Measurement of the pn→dK+K− total cross section close to threshold

Year: 2009
Type: article
Abstract: Measurements of the $\mathit{pd}\ensuremath{\rightarrow}{p}_{\text{sp}}{\mathit{dK}}^{+}{K}^{\ensuremath{-}}$ reaction, where ${p}_{\text{sp}}$ is a spectator proton, have been undertaken at the Cooler Synchrotron COSY-J\"ulich by detecting a fast deuteron in coincidence with a ${K}^{+}{K}^{\ensuremath{-}}$ pair in the ANKE facility. Although the proton beam energy was fixed, the moving target neutron allowed values of the nonresonant quasifree $\mathit{pn}\ensuremath{\rightarrow}{\mathit{dK}}^{+}{K}^{\ensuremath{-}}$ total cross section to be deduced up to an excess energy $\ensuremath{\epsilon}\ensuremath{\approx}100$ MeV. Evidence is found for the effects of ${K}^{\ensuremath{-}}d$ and $K\overline{K}$ final state interactions. The comparison of these data with those of $\mathit{pp}\ensuremath{\rightarrow}{\mathit{ppK}}^{+}{K}^{\ensuremath{-}}$ and $\mathit{pp}\ensuremath{\rightarrow}{\mathit{dK}}^{+}{\overline{K}}^{0}$ shows that all the total cross sections are very similar in magnitude.
Language: Latvian
Open Access status: green
OpenAlex ID: W2007248128
FWCI: 1.491
Cites: 20
Cited by: 28
Related to: 10