FAST TARGET FRAGMENTS IN INTERACTIONS OF RELATIVISTIC NUCLEI WITH PHOTOEMULSION. (IN RUSSIAN)

Antonchik, V.A. ; Bakaev, V.A. ; Bogdanov, V.G. ; et al.
Yad.Fiz. 46 (1987) 1344-1352, 1987.
Inspire Record 256945 DOI 10.17182/hepdata.2434

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38 data tables

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Event-by-event fluctuations of average transverse momentum in central Pb + Pb collisions at 158-GeV per nucleon.

The NA49 collaboration Appelshäuser, H. ; Bächler, J. ; Bailey, S.J. ; et al.
Phys.Lett.B 459 (1999) 679-686, 1999.
Inspire Record 498247 DOI 10.17182/hepdata.41648

We present first data on event-by-event fluctuations in the average transverse momentum of charged particles produced in Pb+Pb collisions at the CERN SPS. This measurement provides previously unavailable information allowing sensitive tests of microscopic and thermodynamic collision models and to search for fluctuations expected to occur in the vicinity of the predicted QCD phase transition. We find that the observed variance of the event-by-event average transverse momentum is consistent with independent particle production modified by the known two-particle correlations due to quantum statistics and final state interactions and folded with the resolution of the NA49 apparatus. For two specific models of non-statistical fluctuations in transverse momentum limits are derived in terms of fluctuation amplitude. We show that a significant part of the parameter space for a model of isospin fluctuations predicted as a consequence of chiral symmetry restoration in a non-equilibrium scenario is excluded by our measurement.

1 data table

Studied YRAP (for PI's) is in a region of 4 TO 5.5.


NEUTRAL STRANGE PARTICLE PRODUCTION IN NEUTRINO CHARGED CURRENT INTERACTIONS AT 3-GeV TO 30-GeV

Ammosov, V.V. ; Ardashev, E.N. ; Ivanilov, A.A. ; et al.
Z.Phys.C, 1985.
Inspire Record 222758 DOI 10.17182/hepdata.10525
15 data tables

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Inclusive Charged Hadron Spectra in $\nu A$ and $\bar{\nu} A$ Interactions at $E_{\nu/\bar{\nu}} < 30$-{GeV}

Baranov, D.S. ; Ermolaev, V.I. ; Hleborad, V.I. ; et al.
Z.Phys.C 21 (1984) 197, 1984.
Inspire Record 195756 DOI 10.17182/hepdata.41124

We present inclusive spectra of charged hadrons produced in\(\begin{array}{*{20}c}{( - )}\\v\\ \end{array}\)-Freon interactions at average beam energies of about 6 GeV. The experiment was done using the bubble chamber SKAT at the 70 GeV Serpukhov accelerator. In the hadronic energy range,W<5 GeV, dominantly isotropic events are found. The transverse momentum of the produced particles shows no strongW2-dependence. Feynman-scaling may be reached forW2≳10 GeV2, where also theż-spectra are described by the predictions of the parton model. All experimental data are reproduced rather well also by a Monte Carlo model based on ordinary phase space.

13 data tables

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RESTRICTIONS ON TRANSVERSE MOMENTUM OF PARTON IN NUCLEON FROM THE DATA ON CHARGED CURRENT ANTI-MUON-NEUTRINO N INTERACTIONS

Ammosov, V.V. ; Asratian, A.E. ; Burtovoy, V.S. ; et al.
Yad.Fiz. 42 (1985) 664-666, 1985.
Inspire Record 221956 DOI 10.17182/hepdata.75409

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1 data table

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