K + − p and K − − p Total Cross …
1963; American Institute of Physics; Volume: 129; Issue: 5 Linguagem: Inglês
10.1103/physrev.129.2285
ISSN1536-6065
AutoresW. Baker, R.L. Cool, E. W. Jenkins, T. F. Kycia, Rachel Phillips, A. L. Read,
Tópico(s)Nuclear physics research studies
ResumoThe total cross sections of ${K}^{+}$ and ${K}^{\ensuremath{-}}$ mesons on protons have been measured between 3 and 19 BeV/c at the Brookhaven alternating gradient synchrotron. The data were obtained from measurements of attenuation in a liquid hydrogen target. The $K$ mesons were defined in momentum by magnetic deflection and a scintillation counter telescope. They were identified by measuring the velocity with a high-pressure gas-filled Cerenkov counter. Values of the cross sections were obtained at intervals of \ensuremath{\sim}1 BeV/c with an error for each value of approximately 5%. ${\ensuremath{\sigma}}_{t}({K}^{+}p)$ is, within errors, constant over the entire momentum range with a value of 18.4 mb. ${\ensuremath{\sigma}}_{t}({K}^{\ensuremath{-}}p)$ decreases gradually from a value of 28 mb at 4 BeV/c to 21.6 mb at 19 BeV/c. The cross sections are significantly different up to the highest momenta reached in this experiment.
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