InclusiveK0,Λ0,

Abstract

Inclusive KOIKO, A O, and xo cross sections have been determined using a 292-eventlmb exposure o f the hydrogen-filled 15-foot bubble chamber at Fermilab. From the invariant-mass distributions of Voa* pairs wefind that a(K**(890)) = 4.4 += 1.4 m~aCC**(1385)) = 0.54 * 0.40 mb, and oQ**(1385)) = 0.45 + 0.34 mb. It is estimated that 0.32 * 0.11 o f K O I K~'~, 0.21 * 0.16 o f A's, and 0.96 * 0.75 of A's originate from decays of Ka(890) and Za(1385), respectively.

Production of $$\Lambda $$ Λ -hyperons in inelastic p+p interactions at 158 $${\mathrm{GeV}}\!/\!c$$ GeV / c

“…This was estimated by an alternative procedure based on a parametrisation of published rapidity distributions. In an iterative procedure a symmetric polynomial of 4 th order [22] was fitted to the (1/ n )(dn/dz) distributions obtained by five bubble-chamber experiments [23][24][25][26][27] and the NA61/SHINE data, where z stands for y/y beam . First, the fit included only the five bubble-chamber datasets.…”

“…15 to results from five bubble-chamber experiments which measured p+p interactions at beam momenta close to 158 GeV/c. The experiments published data for the backward hemisphere, however, with rather small statistics [23][24][25][26][27] and correspondingly large uncertainties. In order to account for the difference in beam momentum the spectra are shown in terms of the scaled rapidity z = y/y beam for six bins in rapidity y.…”

Thermal hadron production in pp and ${\rm p \bar b}$ collisions

“…while the function Z 2 can be worked out according to the same procedure depicted for the function Z 2 in Eqs. (26), (27) for the leading baryon effect:…”

Recent results from NA61/SHINE on spectra and correlations in p+p and Be+Be interactions at the CERN SPS

“…to 158 GeV/c. The experiments published data for the backward hemisphere, however, with rather small statistics [19,20,21,22,23] and correspondingly large uncertainties. To account for the difference in beam momentum the spectra are shown in terms of the scaled rapidity z = y/y beam and were normalised to unity in order to compare the shapes.…”

“…A steep rise in the threshold region is followed by a more gentle increase at higher energies that is well reproduced by the EPOS1.99 model. [19,20,21,22,23]. The symmetric polynomial of 4 th order used for estimation of the systematic uncertainty of Λ total multiplicity is plotted to guide the eye.…”