Backward elastic K<sup loc="post">+</sup>p and K<sup loc="post">−</sup>p scattering has been measured in the angular interval 168<sup loc="post">o</sup> <θc.m. < 177<sup loc="post">o</sup>. We find <math altimg="si1.gif">(<rm>d</rm>σ/<rm>d</rm>Ω) <inf loc="post"><rm>K</rm><sup loc="post">+</sup><rm>p</rm> → <rm>pK</rm><sup loc="post">+</sup></inf> = 17 ± 4 μ<rm>b</rm>/<rm>sr</rm></math> and <math altimg="si2.gif">(<rm>d</rm>σ/<rm>d</rm>Ω)<inf loc="post"><rm>K</rm><sup loc="post">−</sup><rm>p</rm> → <rm>pK</rm><sup loc="post">−</sup></inf> < 0.6 μ<rm>b</rm>/<rm>sr</rm></math>. K<sup loc="post">+</sup>p elastic scattering exhibits a backward peak.
The data for cos(theta) = 1 is the extrapolation.
The data for cos(theta) = 1 is the extrapolation.
The elastic scattering of 3.55 GeV/ c π + and π − mesons by protons was measured at centre-of-mass angles between 165° and 177°. The angular distributions for 864 events show a steeply rising backward peak for π + p, while the shape is less clear for π − p.
No description provided.
No description provided.
Extrapolations.
None
No description provided.
The cross sections for π + π − , K + K − , and K 0 K 0 final states from 2.7 GeV/ c p p interactions are: 28±9 γ b, 3 +6 −3 γb, and < 10 γb respectively. Angular distributions are presented and discussed.
Axis error includes +- 0.0/0.0 contribution (?////Due to contamination by other final states).
Annihilations of 5.7 GeV/ c antiprotons in hydrogen into four charged pions have been studied. Production of ϱ o and f o mesons and a possible enhancement in both π ± π ± and π + π − mass distributions at 1.54 GeV is seen. Upper limits for quasi 2-body annihilations are given.
No description provided.
Reaction cross sections for 65.5 MeV protons have been measured for 9 Be, 12 C, 16 O, 28 Si, 40 Ca, 58,60 Ni, 112.116.118.120.124 Sn, and 208 Pb. The results are compared with optical model predictions using relativistic global potentials.
No description provided.
No description provided.
No description provided.
Neutrons arising from the breakup of a 30 MeV/nucleon 19 C beam on a tantalum target have been measured using the 98 element array DEMON. A narrow, forward peaked neutron angular distribution, with a corresponding momentum spread considerably smaller than those measured simultaneously for 21 N, 22 O and 24 F, was observed for charged fragments with Z < Z proj . Interpreted in terms of the core-breakup reaction model, the results support the existence of a one neutron halo in 19 C.
No description provided.
No description provided.
We report differential cross sections for π − p → n π 0 in the backward hemisphere at incident momenta of 2.6, 3.5, 4.3, 6.0, and 8.0 GeV/c. We observe less pronounced structure than some previous measurements with a shallow dip displaced from that seen in π + p elastic scattering.
'N'.
'N'.
'N'.
The projectile fission of uranium at relativistic energy impinging on a Be target was investigated with the fragment separator, FRS, in order to produce and identify new isotopes and to measure their production yields. Fifty eight new fragments have been observed with a neutron excess of (N - Z)/Z reaching 0.8 and cross sections as small as 0.3 nb.
No description provided.
The ratio of the analysing powers for quasi-elastic pp scattering in carbon and for elastic scattering on free protons was measured fromT = 0.52 to 2.8 GeV by scattering of the SATURNE II polarized proton beam on carbon and CH2. It was found to have a maximum at about 0.8 GeV. The energy dependence for quasielastic scattering on carbon had not been measured before above 1 GeV. The observed effect was not expected from simple models.
No description provided.
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