Rapid Growth of Charged Particle Multiplicity in High-Energy e+ e- Annihilations

The TASSO collaboration Brandelik, R. ; Braunschweig, W. ; Gather, K. ; et al.
Phys.Lett.B 89 (1980) 418-422, 1980.
Inspire Record 143691 DOI 10.17182/hepdata.27273

Hadron production by e + e − annihilation has been studied for c.m. energies W between 13 and 31.6 GeV. As a function of 1n W the charged particle multiplicity grows faster at high energy than at lower energies. This is correlated with a rise in the plateau of the rapidity distribution. The cross section s d σ /d x is found to scale within ±30% for x > 0.2 and 5 ⩽ W ⩽ 31.6 GeV.

7 data tables

CHARGED PARTICLE MULTIPLICITIES.

RAPIDITY DISTRIBUTION.

RAPIDITY DISTRIBUTION.

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Study of the Production of Meson Resonances in Pion - Carbon Interactions at $P=40$-{GeV}/$c$

Angelov, N.S. ; Balea, O. ; Boldea, V. ; et al.
Sov.J.Nucl.Phys. 33 (1981) 832, 1981.
Inspire Record 156120 DOI 10.17182/hepdata.160

None

19 data tables

Data from the Published Version (YF 33,1546).

SIG FOR OMEGA(783) AND F0(700) ARE GIVEN WITH TAKING INTO ACCOUNT ALL DECAY MODES. Data from the Published Version (YF 33,1546).

Data from the Published Version (YF 33,1546).

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Multiplicity and Correlations of Secondary Protons in Hadron Nucleus Interactions at High-energies

Azimov, S.A. ; Igamberdiev, K.R. ; Inogamov, Sh.V. ; et al.
Yad.Fiz. 33 (1981) 1562-1567, 1981.
Inspire Record 170277 DOI 10.17182/hepdata.17862

None

14 data tables

No description provided.

No description provided.

No description provided.

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Multiplicity of Secondary Particles in Inelastic Proton - Neon Interactions at 300-{GeV}/$c$

Azimov, S.A. ; Inogamov, Sh.V. ; Kosonovsky, E.A. ; et al.
Phys.Rev.D 23 (1981) 2512, 1981.
Inspire Record 10318 DOI 10.17182/hepdata.17871

The data on the total inelastic and partial cross sections in pNe interactions at 300 GeV are presented. It is found that the total cross section, σin(pNe)=356±13 mb, and multiplicity distributions of the number of negative and relativistic charged particles are in good agreement with predictions of a multiple-scattering model based on Glauber's approach. The multiplicity of negative particles obeys the Koba-Nielsen-Olesen (KNO) scaling, but it is observed that the KNO function depends on the atomic mass number of the target. From an analysis of the average multiplicities of secondary particles, it is shown that approximately 10 percent of the fast (p≳1.2 GeV) positive secondaries are protons, which are derived from the nucleons in the neon nucleus.

13 data tables

No description provided.

No description provided.

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DECAY OF B MESONS INTO CHARGED AND NEUTRAL KAONS

The CLEO collaboration Brody, A. ; Chen, A. ; Goldberg, M. ; et al.
Phys.Rev.Lett. 48 (1982) 1070-1074, 1982.
Inspire Record 180612 DOI 10.17182/hepdata.27749

Data on inclusive kaon production in e+e− annihilations at energies in the vicinity of the ϒ(4S) resonance are presented. A clear excess of kaons is observed on the ϒ(4S) compared to the continuum. Under the assumption that the ϒ(4S) decays into BB¯, a total of 3.38±0.34±0.68 kaons per ϒ(4S) decay is found. In the context of the standard B-decay model this leads to a value for (b→c)(b→all) of 1.09±0.33±0.13.

2 data tables

No description provided.

ACCEPTANCE CORRECTED MOMENTUM DISTRIBUTIONS FOR CONTINUUM AND UPSILON EVENTS WITH THE CONTINUUM SUBTRACTED.


Charged Multiplicities of High Mass Diffractive $\pi^\pm$, $K^\pm$, and $p^\pm$ States

Cool, R.L. ; Goulianos, Konstantin A. ; Segler, S.L. ; et al.
Phys.Rev.Lett. 48 (1982) 1451-1454, 1982.
Inspire Record 180508 DOI 10.17182/hepdata.20611

A measurement is reported of charged multiplicity distributions of high-mass diffractive π±, K±, and p± states produced in 100 and 200 GeV/c hadron-proton collisions, h+p→X+p. The distributions are described well by a Gaussian function that depends only on the available mass M=Mx−Mh, has a maximum at n0≅2M12, and a peak-to-width ratio n0D≅2.

3 data tables

MULTIPLICITY VERSUS AVAILABLE MASS MDD-MPI.

MULTIPLICITY VERSUS AVAILABLE MASS (MDD - MK).

MULTIPLICITY VERSUS AVAILABLE MASS (MDD - MP).


Multiparticle Production on Hydrogen, Argon and Xenon Targets in a Streamer Chamber by 200-GeV/c Proton and anti-Proton Beams

The Bari-Cracow-Liverpool-Munich-Nijmegen collaboration De Marzo, C. ; De Palma, M. ; Distante, A. ; et al.
Phys.Rev.D 26 (1982) 1019, 1982.
Inspire Record 177100 DOI 10.17182/hepdata.4113

Interactions of 200-GeV/c protons and antiprotons on hydrogen, argon, and xenon targets were studied with a streamer-chamber vertex spectrometer at the CERN SPS. Results on multiplicities, rapidity distributions, and correlations are presented and compared with predictions of current models.

10 data tables

No description provided.

No description provided.

'PRODUCED PARTICLES' (SEE CONDITIONS).

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Charged Particle Multiplicities in $B$ Meson Decay

The CLEO collaboration Alam, M.S. ; Csorna, S.E. ; Fridman, A. ; et al.
Phys.Rev.Lett. 49 (1982) 357, 1982.
Inspire Record 178492 DOI 10.17182/hepdata.20573

The charged multiplicity has been measured at the ϒ(4S) and a value of 5.75±0.1±0.2 has been obtained for the mean charged multiplicity in B-meson decay. Combining this result with the measurement of prompt leptons from B decay, the values 4.1±0.35±0.2 and 6.3±0.2±0.2 are found for the semileptonic and nonleptonic charged multiplicities, respectively. If b→c dominance is assumed for the weak decay of the B meson, then the semileptonic multiplicity is consistent with the recoil mass determined from the lepton momentum spectrum.

2 data tables

No description provided.

No description provided.


PHOTON MULTIPLICITY AND ENERGY FRACTION OF THE UPSILON (4S) AND NEAR CONTINUUM

Chen, A. ; Goldberg, M. ; Horwitz, N. ; et al.
PRINT-83-0720, 1983.
Inspire Record 191581 DOI 10.17182/hepdata.12129

None

2 data tables

CHARGED HADRON MEASUREMENTS ARE TAKEN FROM R.A. PERCHANOK, PHD THESIS, CORNELL UNIVERSITY (1983).

CHARGED HADRON MEASUREMENTS ARE TAKEN FROM G.J. RUCINSKI, PHD THESIS, CORNELL UNIVERSITY (1983).


Properties of Charm Jets Produced in $e^+ e^-$ Annihilation Near 34-{GeV}

The TASSO collaboration Althoff, M. ; Braunschweig, W. ; Kirschfink, F.J. ; et al.
Phys.Lett.B 135 (1984) 243-249, 1984.
Inspire Record 194050 DOI 10.17182/hepdata.30600

D ∗± production via e + e − → D ∗± X was studied at CM energies near 34 GeV. The charged particles produced in the hemisphere opposite to that of the D ∗ were used to investigate the fragmentation of charm jets. All spectra studied show a close similarity between the charm jet and the average jet obtained by summing over all quark flavours. The spectra of particles produced in the D ∗ hemisphere were used to study separately first rank and higher rank fragmentation.

2 data tables

THE C-JET IS THE JET IN THE HEMISPHERE OPPOSITE TO THAT CONTAINING THE D* MESON. DIVISION IS MADE BY A PLANE PERPENDICULAR TO THE THRUST AXIS.

No description provided.