Kaon Production Cross Sections Research Articles

Subthreshold kaon production and compression effects

With regard to the use of subthreshold kaons from relativistic heavy-ion collisions as a tool to gain information on the nuclear matter equation of state, we investigate the role of the elementary kaon production cross section. The uncertainties introduced because of the poor knowledge of the latter near threshold are largely eliminated by considering kaon yield ratios.

Negative-kaon and antiproton production near 700 MeV/c by 28.4-GeV/c protons.

We present measurements of kaon and antiproton production cross sections in the momentum region of 700 MeV/c from 0/sup 0/ to 10/sup 0/ by 28.4-GeV/c protons on complex nuclei. A model to describe the A dependence of these cross sections is discussed and compared with these and other data.

Kaon production in relativistic nuclear collisions

Kaon production in relativistic nuclear collisions is studied on the basis of a conventional multiple-collision model. The input is the differential cross sections for kaon production in elementary baryon-baryon collisions, estimated in a simple model. Inclusive kaon spectra are calculated at 2.1 GeV/nucleon for a number of experimental cases. The calculated kaon yield is approximately isotropic in the mid-rapidity frame and extends considerably beyond the nucleon-nucleon kinematical limit.

Comment on Direct Lepton Production in Proton-Nucleon Collisions

A unified description is given of all available data on direct lepton production in proton-nucleon collisions. It is shown that the lepton cross sections exhibit a simple scaling behavior when expressed in terms of the radial variable, ${x}_{R}$. A striking similarity is noted between the behavior of the lepton and negative kaon production cross sections.

Single-Kaon Production by Neutrino and Kl3 Decay Form Factors

We computed the total kaonproduction cross section of the reaction v+p~;r+K•+p up to 175GeV, by using the form factors of linear, quadratic, single-pole type and Lee's, which were determined by measuring the K .. decay. The result is that the single-pole type and Lee's form factors are consistent with the single strange particle production cross sec­ tion, while the linear and quadratic form factors break down at about 5 and 1.8 GeV inci­ dent neutrino energies respectively. The lepton momentum transfer distribution is also computed with the single-pole type and Lee's form factors. § l. Introduction Recently it has become possible to study the dependence of the neutrino interaction on large energy and momentum transfer. Theoretic,ally the investigation of the effects of the hypothetical weak bt>son is an interesting problem. From . the present experimental data it seems, however, that the existence of the weak boson with mass below 10 Ge V is excluded. In connection. with the observation of scaling phenomena in deep inelastic electron-nucleon scattering, much interesting theoretical work1l has already appeared in the. neutrino physics. On the other hand, .definite knowledge has been obtained concerning the weak interactions through studies of weak decay processes in which the range of the square of four-momentum transfer t is narrowly limited. Then it should be appropriate to ask which of the results obtained by measuring the decay processes hold also in the high energy neutrino reactions. Therefore, in anticipation with detailed experiments; we have investi­ gated the process of the single-kaon production from the proton target by neutrinos, since K 18 decay form factors can be used in this process and contributions from the resonances do not exist. Though e;xperimental data on this process have not been reported, some theoretical investigations2l were performed about ten