QCD studies with e+ e- annihilation data at 172-GeV to 189-GeV.

The OPAL collaboration Abbiendi, G. ; Ackerstaff, K. ; Akesson, P.F. ; et al.
Eur.Phys.J.C 16 (2000) 185-210, 2000.
Inspire Record 513476 DOI 10.17182/hepdata.49000

We have studied hadronic events from e+e- annihilation data at centre-of-mass energies of sqrt{s}=172, 183 and 189 GeV. The total integrated luminosity of the three samples, measured with the OPAL detector, corresponds to 250 pb^-1. We present distributions of event shape variables, charged particle multiplicity and momentum, measured separately in the three data samples. From these we extract measurements of the strong coupling alpha_s, the mean charged particle multiplicity <nch> and the peak position xi_0 in the xi_p=ln(1/x_p) distribution. In general the data are described well by analytic QCD calculations and Monte Carlo models. Our measured values of alpha_s, <nch> and xi_0 are consistent with previous determinations at sqrt{s}=MZ.

20 data tables

Distribution of Thrust.

Distribution of Thrust Major.

Distribution of Thrust Minor.

More…

Multiplicity, Momentum and Angular Characteristics of $\pi^-$ Mesons for $p$ C, $d$ C, $\alpha$ C and C C Interactions at 4.2-{GeV}/$c$ Per Nucleon

The Alma Ata-Baku-Belgrade-Bucharest-Dubna-Kishinev-Leipzig- Moscow-Prague-Samarkand-Sofiya-Tashkent-Tbilisi-Ulan Bator-Varna collaboration Agakishiev, G.N. ; Akhababian, N. ; Armutliisky, D. ; et al.
Z.Phys.C 27 (1985) 177, 1984.
Inspire Record 203342 DOI 10.17182/hepdata.1999

Light ion collisions with carbon target at 4.2 GeV/c/N are studied. Pion multiplicity distributions, momentum and angular spectra are analysed. These data are described in terms of models assuming independent interactions of nucleons from the projectile nucleus with the target.

18 data tables

No description provided.

No description provided.

No description provided.

More…

OBSERVATION OF SLOW PION PRODUCTION IN NUCLEUS NUCLEUS INTERACTIONS

Dubinina, A.I. ; Kolganova, E.D. ; Pozharova, E.A. ; et al.
JETP Lett. 48 (1988) 251-253, 1988.
Inspire Record 271948 DOI 10.17182/hepdata.16886

None

4 data tables

BEAM NUCLEUS ARE MIXTURE OF NE AND MG.

BEAM NUCLEUS ARE MIXTURE OF NE AND MG.

BEAM NUCLEUS ARE MIXTURE OF NE AND MG.

More…

MOMENTUM AND ANGULAR DISTRIBUTIONS OF CHARGED SECONDARIES IN 40-GeV/c pi- A INTERACTIONS WITH SINGLE PARTICLE HIGH P(T) TRIGGER

The Berlin-Budapest-Dubna-Prague-Sofiya-Tbilisi-Warsaw collaboration Adam, G. ; Bannikov, A.V. ; Bohm, J. ; et al.
JINR-E1-84-442, 1984.
Inspire Record 203314 DOI 10.17182/hepdata.9861

None

6 data tables

No description provided.

No description provided.

No description provided.

More…

LAMBDA AND K0(S) PRODUCTION IN INELASTIC AND MULTI - NUCLEON C C INTERACTIONS AT 4.2-GeV/c PER NUCLEON

Armutliisky, D.D. ; Bogdanovich, E. ; Gasparian, A.P. ; et al.
JINR-P1-85-220, 1985.
Inspire Record 216729 DOI 10.17182/hepdata.9643

None

10 data tables

No description provided.

No description provided.

No description provided.

More…

INVESTIGATION OF THE MECHANISM OF RELATIVISTIC NUCLEUS INTERACTION FROM ANALYSIS OF C C COLLISIONS AT 4.2-GEV/C/NUCLEON. (IN RUSSIAN)

Ameev, S.Sh. ; Vinitsky, A.Kh. ; Izbasarov, M. ; et al.
Yad.Fiz. 41 (1985) 938-946, 1985.
Inspire Record 218881 DOI 10.17182/hepdata.2552

None

5 data tables

No description provided.

No description provided.

No description provided.

More…

PROPERTIES OF THE C Ta INTERACTIONS WITH LAMBDA HYPERON AND K0 MESON PRODUCTION AT 4.2-GeV/c PER NUCLEON

Iovchev, K. ; Kanarek, T. ; Kladnitskaya, E.N. ; et al.
JINR-P1-84-279, 1984.
Inspire Record 202985 DOI 10.17182/hepdata.17552

None

14 data tables

No description provided.

No description provided.

No description provided.

More…

Observation of Baryons With High Transverse Momenta in $p$, $d$, He and C Nuclear Interactions With Tantalum Nuclei at 4.2-{GeV}/$c$

Akhababian, N. ; Baatar, Ts. ; Baldin, A.M. ; et al.
Sov.J.Nucl.Phys. 37 (1983) 559, 1983.
Inspire Record 180913 DOI 10.17182/hepdata.9923

None

10 data tables

No description provided.

No description provided.

No description provided.

More…