HEPData Search

A sample of 24 700 Ω− hyperons was produced by a prolarized neutral beam in a spin-transfer reaction. The Ω− polarizations are found to be -0.054±0.019 and -0.149±0.055 at mean Ω− momenta of 322 and 398 GeV/c, respectively. The directions of these polarizations give an Ω− magnetic moment of -(1.94±0.17±0.14)μN

1 data table

Table 1

No description provided.

rivet Analysis
Measurement of the inclusive B* cross-section above the Upsilon (4S)

The CLEO-II collaboration Akerib, D.S. ; Barish, B. ; Cowen, D.F. ; et al.

Phys.Rev.Lett. 67 (1991) 1692-1695, 1991.

Inspire Record 29927 DOI 10.17182/hepdata.19887

Using the CLEO II detector at the Cornell Electron Storage Ring, we have determined the inclusive B* cross section above the Υ(4S) resonance in the energy range from 10.61 to 10.70 GeV. We also report a new measurement of the energy of the B*→Bγ transition photon of 46.2±0.3±0.8 MeV.

2 data tables

Table 1

Hadronic cross section above the continuum. The final state is an unknown mixture of B BBAR + B* BBAR + B B*BAR (+ B* B*BAR only at the highest energy).

Table 2

Inclusive B* cross section.

rivet Analysis
Observation of an isoscalar vector meson at approximately = 1650-MeV/c**2 in the e+ e- ---> K anti-K pi reaction

Bisello, D. ; Busetto, G. ; Castro, A. ; et al.

Z.Phys.C 52 (1991) 227-230, 1991.

Inspire Record 318558 DOI 10.17182/hepdata.14928

The$e^ +e^ -\to K_s^0 K^ \pm\pi ^ \mp$ andK+K−π0 cross sections have been measured in the energy interval$1350 \leqq \sqrt s\leqq 2400$ with the DM2 detector at DCI. The$K_s^0 K^ \pm\pi ^ \mp$ cross section shows the contribution of an isoscalar vector meson at ≈1650 MeV/c2 in agreement with a previous experiment. The low statisticsK+K−π0 measurement is consistent with the above result.

2 data tables

Table 1

The K0S K+- PI-+ cross section.

Table 2

The K+ K- PI0 cross section.

A Study of K0(s) production in Z0 decays

The OPAL collaboration Alexander, G. ; Allison, J. ; Allport, P.P. ; et al.

Phys.Lett.B 264 (1991) 467-475, 1991.

Inspire Record 316151 DOI 10.17182/hepdata.29375

The production of K 0 mesons in e + e − interactions at center of mass energies in the region of the Z 0 mass has been investigated with the OPAL detector at LEP. The rate is found to be 2.10±0.02±0.14 K 0 , Z 0 per hadronic event. The predictions from the JETSET and HERWIG generators agree very well with both the rate and the scale invariant cross section (1/σ had β) (dσ/d x E ) for K 0 production. Comparisons of the inclusive momentum spectrum with predictions of an analytical QCD formula and with data from lower center of mass energies are presented.

3 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

K0 multiplicity per hadronic event.

On the production of fast and slow particles in nucleus-nucleus collisions at ultrarelativistic energies

Jain, P.L. ; Sengupta, K. ; Singh, G. ;

Phys.Rev.C 44 (1991) 844-853, 1991.

Inspire Record 315632 DOI 10.17182/hepdata.26111

Multiplicity and angular distributions of shower, grey, and black particles produced in the interactions of S32 at 200A GeV, O16 at 200 and 60A GeV, and He4 at ∼140A GeV in emulsion are compared with the predictions of a Monte Carlo code which takes into account the internuclear cascading. The correlations between the various parameters belonging to the same or to the different kinds of particles are discussed. The data on shower and grey particles from all the beams are well described by the code. However, the black prong data show a significant departure from this model.

6 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.