Date

Measurement of Hadron Production and Three Jet Event Properties at {PETRA} {MIT}

Barber, D.P. ; Becker, U. ; Bei, G.D. ; et al.
Phys.Lett.B 108 (1982) 63-66, 1982.
Inspire Record 166369 DOI 10.17182/hepdata.31009

We have performed a high statistics measurement of the production rate and the energy flow pattern of hadron events between √ s =33 and 36.7 GeV. The data show no evidence for the production of a new quark with charge 2 3 e . Planar events in e + e − →hadrons are shown to have three well separated jets. The production rate and the shape of three-jet events are compared with many models and we find that only the QCD model can explain the data.

1 data table

ENERGY SCAN WITH 7077 HADRON EVENTS.


Charged Particle Multiplicities in ($p p$) Interactions and Comparison With ($e^+ e^-$) Data

Basile, M. ; Cara Romeo, G. ; Cifarelli, L. ; et al.
Nuovo Cim.A 65 (1981) 400, 1981.
Inspire Record 166765 DOI 10.17182/hepdata.37470

By using three different c.m. energies in pp interactions,\(\sqrt s \), 44, 62 GeV, it is shown that the average charged-particle multiplicity <nch> sclaes with\(\sqrt s \) once the correct hadronic energy available for multiparticle production,Ehad, is used as basic parameter. The pp data, analysed in this way, are compared with e+e− data at equivalent energies. The agreement is very satisfactory.

6 data tables

WITH SQRT(S) OF 30 GEV.

WITH SQRT(S) OF 44 GEV.

WITH SQRT(S) OF 62 GEV.

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RAPIDITY DISTRIBUTIONS SCALING IN pi- p INTERACTIONS AT P (pi-) = 40-GeV/c

Lyubimov, V.B. ; Omboo, Z. ; Tuvdendorzh, D. ; et al.
Zh.Eksp.Teor.Fiz. 34 (1981) 312, 1981.
Inspire Record 167775 DOI 10.17182/hepdata.38591

None

2 data tables

No description provided.

NON DIFFRACTION DISSOSIATION EVENTS.


THE SEARCH FOR CUMULATIVE eta MESONS IN THE pi- Cu ---> eta (180-degrees) X REACTION AT 3.8-GeV/c

Arkhipov, V.V. ; Aslanian, P.Zh. ; Astvatsaturov, R.G. ; et al.
Sov.J.Nucl.Phys. 35 (1982) 706, 1982.
Inspire Record 167778 DOI 10.17182/hepdata.39154

None

1 data table

No description provided.


QUASIELASTIC NEUTRINO AND ANTI-NEUTRINOS INTERACTION AT THE SERPUKHOV ACCELERATOR

The Serpukhov-Moscow collaboration Belikov, S.V. ; Belokopytov, Yu.A. ; Bugorsky, A.P. ; et al.
IFVE-81-146, 1981.
Inspire Record 169077 DOI 10.17182/hepdata.41330

None

4 data tables

Axis error includes +- 10/10 contribution.

Axis error includes +- 10/10 contribution.

Axis error includes +- 10/10 contribution.

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A Study of Multiparticle Fragmentation in $K^+ p$ Interactions at 32-{GeV}/$c$

The CERN-Soviet collaboration De Wolf, E.A. ; Dumont, J.J. ; Verbeure, F. ; et al.
Z.Phys.C 12 (1982) 105, 1982.
Inspire Record 169082 DOI 10.17182/hepdata.41344

Results are presented on inclusive production of resonant and non-resonant particle systems produced inK+p interactions at 32 GeV/c. We compareK*+(892),\(\bar \Sigma ^{ *- } \)(1385), Σ*±(1385), and ϱ0 inclusivex-spectra with the ones of non-resonantKs0π±,\(\bar \Lambda \pi ^ -\), Λπ± and π+π− pairs at the same effective mass. Resonance-particle pairsK*+π±, Σ*+π−, and\(\bar \Sigma ^{ *- } \pi ^ -\) are also studied together with non-resonant tripletsKs0π±, Λπ+π−,\(\bar \Lambda \pi ^ -\pi ^ -\). The invariantx-spectra of resonant particle pairs decrease less rapidly withx then the corresponding non-resonant pairs. Comparison with quark-recombination predictions indicates that the particles, resonances and multiparticle systems are probably created off a single valence quark or diquark instead of carrying all possible valence-quarks.

19 data tables

No description provided.

No description provided.

No description provided.

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INVESTIGATION OF EFFECTS OF PION IDENTITY PRODUCED IN pi- p INTERACTIONS AT 40-GeV/c

Angelov, N.S. ; Akhababian, N.O. ; Grishin, V.G. ; et al.
Sov.J.Nucl.Phys. 35 (1982) 699, 1982.
Inspire Record 167521 DOI 10.17182/hepdata.39159

None

4 data tables

No description provided.

No description provided.

No description provided.

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Forward and Backward Multiplicities in $K^- p$ Interactions at 110-{GeV}/$c$

The Aachen-Berlin-CERN-Cracow-London-Vienna-Warsaw collaboration Gottgens, R. ; Kohli, J.M. ; Sixel, P. ; et al.
Z.Phys.C 11 (1981) 189, 1981.
Inspire Record 166387 DOI 10.17182/hepdata.16482

Multiplicity distributions and correlations between charged particles in the forward and back-ward c.m. hemispheres are studied inK−p interactions at 110 GeV/c and compared with other data on mesonnucleon scattering. The interpretation in terms of a simple quark-parton picture assuming that the forward multiplicity is dominated by quark fragmentation and the backward multiplicity by diquark fragmentation is supported by the experimental fact that the forward and the backward mean multiplicities are approximately equal to half of thee+e− andpp multiplicities, respectively. The 110 GeV/cK−p data show significant correlations between the numbers of slow forward and slow backward particles, whereas the multiplicities of fast forward and fast backward particles are independent.

2 data tables

CHARGED MULTIPLICITY PER INELASTIC EVENT.

NONDIFFRACTIVE SAMPLE ( -0.85 < XL < 0.85 ). CHARGED MULTIPLICITY PER INELASTIC EVENT.


Review of $e^+ e^-$ Experiments With Pluto From 3-{GeV} to 31-{GeV}

Criegee, Lutz ; Knies, Gerhard ;
Phys.Rept. 83 (1982) 151-280, 1982.
Inspire Record 166799 DOI 10.17182/hepdata.19326

The contributions of the PLUTO experiment to e + e − physics at collision energies in the range of 3–32 GeV are reviewed. The review briefly sketches the storage rings DORIS and PETRA at DESY, and describes the most important features of the PLUTO detector, of data processing, and of the analysis methods. It covers the physics results in the fields of electroweak interactions, of the heavy lepton τ and the search for still heavier leptons, of hadron production with evidence for quark and gluon jets, as well as for single and multiple gluon emission, of Y decays and their relation to QCD, and presents results in high-energy photon-photon interactions, including the first measurement of the photon structure function.

2 data tables

SUMMARY OF MEASUREMENTS OF R (REVISED FROM EARLIER PUBLICATIONS). RADIATIVE CORRECTIONS APPLIED. TAU HEAVY LEPTON CONTRIBUTION SUBTRACTED.

Summary of measurements of the cross section around the UPSI(1S) (revised from earlier publication Phys.Lett. 76B (1978) 243) with radiative corrections a pplied and leptons contribution subtracted. Data extracted from graph by VVE.


MEASUREMENT OF THE POLARIZED TARGET ASYMMETRY ON gamma p ---> pi+ n IN THE THIRD RESONANCE REGION

Fujii, K. ; Hayashii, H. ; Iwata, S. ; et al.
DPNU-28-81, 1981.
Inspire Record 166957 DOI 10.17182/hepdata.34173

None

4 data tables

Axis error includes +- 3/3 contribution.

Axis error includes +- 3/3 contribution.

Axis error includes +- 3/3 contribution.

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