Date

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

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).

Inclusive B* cross section.


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

The K0S K+- PI-+ cross section.

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

No description provided.

No description provided.

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

No description provided.

No description provided.

No description provided.

More…

Topological characteristics of the charge exchange reaction H-3 ---> He-3 on neon and magnesium nuclei at 9-GeV/c

Avramenko, S.A. ; Aksinenko, V.D. ; Anikina, M.Kh. ; et al.
JINR-P1-91-240, 1991.
Inspire Record 319449 DOI 10.17182/hepdata.38713

None

2 data tables

No description provided.

No description provided.


Cross-sections of the H-3 ---> He-3 reaction on hydrogen, carbon, aluminum, copper and lead at 9-gev/c

Avramenko, S.A. ; Belikov, Yu.A. ; Galperin, A.G. ; et al.
JINR-P1-91-239, 1991.
Inspire Record 319463 DOI 10.17182/hepdata.38697

None

1 data table

Axis error includes +- 0.0/0.0 contribution (?////).


Charge exchange Li-7 ---> Be-7 cross-sections at 21-GeV/c on H, C, Al, Cu, Pb nuclei

Avramenko, S.A. ; Belikov, Yu.A. ; Golokhvastov, A.I. ; et al.
JINR-P1-91-206, 1991.
Inspire Record 319270 DOI 10.17182/hepdata.38715

None

1 data table

CHARGE EXCHANGE INCLUSIVE CROSS SECTION.


Experimental study of 1-GeV proton fission processes in U-238 nuclei using photoemulsions

Filatov, N.P. ; Solyakin, G.E. ; Zakharov, Valentin I. ; et al.
LENINGRAD-91-1683, 1991.
Inspire Record 323566 DOI 10.17182/hepdata.37951

None

1 data table

No description provided.


A Test of QCD based on three jet events from Z0 decays

The L3 collaboration Adeva, B. ; Adriani, O. ; Aguilar-Benitez, M. ; et al.
Phys.Lett.B 263 (1991) 551-562, 1991.
Inspire Record 315954 DOI 10.17182/hepdata.38291

We present a study of 43 000 3-jet events from Z 0 boson decays. Both the measured jet energy distributions and the event orientation are reproduced by second order QCD. An alternative model with scalar gluons fails to describe the data.

1 data table

Jets are ordered according their energy: E1 > E2 > E3.


Central Mg + Mg collisions with Lambda production at a momentum of 4.3-GeV/c per nucleon

Avramenko, S.A. ; Abdurakhimov, A.U. ; Aksinenko, V.D. ; et al.
Sov.J.Nucl.Phys. 55 (1992) 400-407, 1992.
Inspire Record 319240 DOI 10.17182/hepdata.38716

None

2 data tables

CENTRAL COLLISIONS.

CENTRAL COLLISIONS.