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Charged particle multiplicities in nuclear collisions at 200-GeV/N

The NA35 collaboration Bächler, J. ; Bartke, J. ; Bialkowska, H. ; et al.

Z.Phys.C 51 (1991) 157-162, 1991.

Inspire Record 320907 DOI 10.17182/hepdata.14983

Data on multiplicities of charged particles produced in proton-nucleus and nucleus-nucleus collisions at 200 GeV per nucleon are presented. It is shown that the mean multiplicity of negative particles is proportional to the mean number of nucleons participating in the collision both for nucleus-nucleus and proton-nucleus collisions. The apparent consistency of pion multiplicity data with the assumption of an incoherent superposition of nucleon-nucleon collisions is critically discussed.

4 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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The transverse and longitudinal cross sections for electroproduction of pions near the Δ(1236)-isobar

Bartel, W. ; Dudelzak, B. ; Krehbiel, H. ; et al.

Phys.Lett.B 27 (1968) 660-662, 1968.

Inspire Record 1389642 DOI 10.17182/hepdata.29204

The reaction e + p → e ′+ N ∗ was studied for four momentum transfers up to 2.34 (GeV/ c ) 2 in the region of the 1236 MeV isobar. An analysis of the data in terms of the cross sections σ T and σ L for the absorption of transverse and longitudinal photons is given for invariant masses of the final pion nucleon system W =1.220 GeV and W =1.350 GeV.

3 data tables

Table 1

Total errors are presented.

Table 2

Total errors are presented.

Table 3

Total errors are presented.

Measurements of the $\nu_\mu N$ Total Cross-section at 2-{GeV} - 30-{GeV} in Skat Neutrino Experiment

Baranov, D.S. ; Bugorsky, A.P. ; Ivanilov, A.A. ; et al.

Phys.Lett.B 81 (1979) 255-257, 1979.

Inspire Record 130963 DOI 10.17182/hepdata.26940

Data on the measurement of the v μ N total cross section at 2–30 GeV are presented. The observed behavior does not contradict a linear dependence on neutrino energy with slope S =0.73 ± 0.08.

1 data table

Table 1

Measured charged current total cross section.

Total Cross-section for Neutrino Charged Current Interactions at 3-{GeV} and 9-{GeV}

The Gargamelle Neutrino Propane & Aachen-Brussels-CERN-Ecole Poly-Orsay-Padua collaborations Ciampolillo, S. ; Degrange, B. ; Dewit, M. ; et al.

Phys.Lett.B 84 (1979) 281-284, 1979.

Inspire Record 141175 DOI 10.17182/hepdata.27322

Average total cross sections are given for neutrino charged current interactions at neutrino energies of 2.87 GeV and 9.05 GeV. The ratios 〈σ〉〈E〉 are 0.69 ± 0.05 and 0.61 ± 0.06 in units of 10 −38 cm 2 /GeV nucleon, respectively The errors include both statistical and systematic uncertainties.

2 data tables

Table 1

Measured charged current total cross section.

Table 2

Measured charged current total cross section.

CROSS-SECTIONS AND SCALING VARIABLE DISTRIBUTIONS OF NEUTRAL AND CHARGED CURRENT NEUTRINO NUCLEON INTERACTIONS FROM A LOW-ENERGY NARROW BAND BEAM

Baltay, C. ; French, H. ; Hibbs, M. ; et al.

Phys.Rev.Lett. 44 (1980) 916-919, 1980.

Inspire Record 157494 DOI 10.17182/hepdata.20725

This Letter compares neutral-current and charged-current scaling-variable distributions in neutrino-nucleon interactions induced by a narrow-band beam at Brookhaven National Laboratory; the x distribution of neutral-current events has been reported previously. The first measurement of flux-normalized neutrino cross sections from a narrow-band beam in the energy range Eν=3−9 GeV is also presented.

1 data table

Table 1

Measured charged current total cross section.

Total cross-section measurements for muon-neutrino, anti-muon-neutrino interactions in 3-GeV - 30-GeV energy range with IHEP-JINR neutrino detector

Anikeev, V.B. ; Belikov, S.V. ; Borisov, A.A. ; et al.

Z.Phys.C 70 (1996) 39-46, 1996.

Inspire Record 400486 DOI 10.17182/hepdata.40711

The results of total cross section measurements for theνμ,$\bar \nu _\mu$ interactions with isoscalar target in the 3 – 30 GeV energy range have been presented. The data were obtained with the IHEP-JINR Neutrino Detector in the “natural” neutrino beams of the U-70 accelerator. Neutrino fluxes were obtained by averaging the spectra, based on the calculations with the use of the experimental data on secondary particle yields from the target and muon fluxes measurements in 9 gaps of the muon filter, as well as the spectra determined from quasi-elastic events and spectra defined by extrapolating differential distributiondσ/dy in the regiony=0. The significant deviation from the linear dependence forσtot versus neutrino energy is determined in the energy range less than 15 GeV.

2 data tables

Table 1

No description provided.

Table 2

No description provided.

Measurement of the Antilambda polarization in nu/mu charged current interactions in the NOMAD experiment.

The NOMAD collaboration Astier, P. ; Autiero, D. ; Baldisseri, A. ; et al.

Nucl.Phys.B 605 (2001) 3-14, 2001.

Inspire Record 554759 DOI 10.17182/hepdata.48928

We present a measurement of the polarization of Antilambda hyperons produced in nu_mu charged current interactions. The full data sample from the NOMAD experiment has been analyzed using the same V0 identification procedure and analysis method reported in a previous paper for the case of Lambda hyperons. The Antilambda polarization has been measured for the first time in a neutrino experiment. The polarization vector is found to be compatible with zero.

2 data tables

Table 1

Lambdabar polarization in regions of Feynman X (XL).

Table 2

Lambdabar polarization in regions of the Bjorken scaling variable X.

W2 and Q2 dependence of charged hadron and pion multiplicities in neutrino p and anti-neutrino p charged current interactions

The WA21 collaboration Jones, G.T. ; Jones, R.W.L. ; Morrison, Douglas R.O. ; et al.

Z.Phys.C 46 (1990) 25-34, 1990.

Inspire Record 305244 DOI 10.17182/hepdata.1699

Using data onvp and$\bar vp$ charged current interactions from a bubble chamber experiment with BEBC at CERN, the average multiplicities of charged hadrons and pions are determined as functions ofW2 andQ2. The analysis is based on ∼20000 events with incidentv and ∼10000 events with incident$\bar v$. In addition to the known dependence of the average multiplicity onW2 a weak dependence onQ2 for fixed intervals ofW is observed. ForW>2 GeV andQ2>0.1 GeV2 the average multiplicity of charged hadrons is well described by〈n〉=a1+a2ln(W2/GeV2)+a3ln(Q2/GeV2) witha1=0.465±0.053,a2=1.211±0.021,a3=0.103±0.014 for thevp anda1=−0.372±0.073,a2=1.245±0.028,a3=0.093±0.015 for the$\bar vp$ reaction.

72 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.