Nucleon structure functions from high energy neutrino interactions

Oltman, E. ; Auchincloss, Priscilla S. ; Blair, R.E. ; et al.
Z.Phys.C 53 (1992) 51-71, 1992.
Inspire Record 335706 DOI 10.17182/hepdata.1433

Structure functions obtained from high energy neutrino and antineutrino scattering from an iron target are presented. These were extracted from the combined data of Fermilab experiments E616 and E701; these utilized narrow band beam runs between 1979–1982. The structure functions are used to test the validity of quarkparton model (QPM) predictions and to extract the QCD scale parameter Λ from fits to the Altarelli-Parisi equations.

22 data tables

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Measurement of the Structure Functions F2 and Xf3 and Comparison With {QCD} Predictions Including Kinematical and Dynamical Higher Twist Effects

The BEBC WA59 collaboration Varvell, K. ; Cooper-Sarkar, A.M. ; Parker, M.A. ; et al.
Z.Phys.C 36 (1987) 1, 1987.
Inspire Record 245094 DOI 10.17182/hepdata.15775

The isoscalar nucleon structure functionsF2(x, Q2) andxF3(x, Q2) are measured in the range 0<Q2<64 GeV2, 1.7<W2<250 GeV2,x<0.7 using ν and\(\bar v\) interactions on neon in BEBC. The data are used to evaluate possible higher twist contributions and to determine their impact on the evaluation of the QCD parameter Λ. In contrast to previous analyses reaching to such lowW2 values, it is found that a low\(\Lambda _{\overline {MS} } \) value in the neighbourhood of 100 MeV describes the data adequately and that the contribution of dynamical higher twist effects is small and negative.

9 data tables

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Total Neutrino and Anti-neutrino Charged Current Cross-section Measurements in 100-{GeV}, 160-{GeV} and 200-{GeV} Narrow Band Beams

Berge, J.P. ; Blondel, A. ; Bockmann, P. ; et al.
Z.Phys.C 35 (1987) 443, 1987.
Inspire Record 246156 DOI 10.17182/hepdata.15709

Neutrino and antineutrino total charged current cross sections on iron were measured in the 100, 160, and 200 GeV narrow band beams at the CERN SPS in the energy range 10 to 200 GeV. Assuming σ/E to be constant, the values corrected for non-isoscalarity are σv/E = (0.686 ± 0.019) * 10−38 cm2/ (GeV · nucleon) and σv/E = (0.339 ± 0.010) * 10−38 cm2/ (GeV·nucleon). Between 50 and 150 GeV no energy dependence of σ/E was observed within ±3% for neutrino and ±4% for antineutrino interactions.

5 data tables

Measured charged current total cross section.

Measured charged current total cross section.

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Q**2 Dependence of the Proton and Neutron Structure Functions from Neutrino and anti-neutrinos Scattering in Deuterium

Allasia, D. ; Angelini, C. ; Baldini, A. ; et al.
Z.Phys.C 28 (1985) 321, 1985.
Inspire Record 213484 DOI 10.17182/hepdata.16015

12,100 νD and 10,500\(\bar vD\) charged current interactions in deuterium measured in the BEBC bubble chamber were used to obtain the complete set of structure functions of proton and neutron. Thex andQ2 dependence of the structure functions of up and down valence quarks and antiquarks are presented and discussed. The Adler and Gross-Llewellyn Smith sum rules have been tested at differentQ2 values. A QCD analysis of the four non singlet structure functionsxF3νN,xuv,xdv andF2νn−F2νp has been performed yielding values ofΛLO between 100 and 300 MeV.

18 data tables

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INCLUSIVE STUDY OF NEUTRINO AND ANTI-NEUTRINO INTERACTIONS WITH NUCLEI AT ENERGIES E anti-neutrino <= 30-GeV

Ammosov, V.V. ; Baranov, D.S. ; Bugorsky, A.P. ; et al.
Z.Phys.C 30 (1986) 175, 1986.
Inspire Record 215974 DOI 10.17182/hepdata.15918

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6 data tables

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Measurement of $\nu$ and $\bar{\nu}$ structure functions in hydrogen and iron

Abramowicz, H. ; Hansl-Kozanecka, T. ; May, J. ; et al.
Z.Phys.C 25 (1984) 29-43, 1984.
Inspire Record 201386 DOI 10.17182/hepdata.49653

The CDHS neutrino detector has been used to measure events originating in a tank of liquid hydrogen and in the iron of the detector. Total cross-sections, differential cross-sections, and structure functions are given for hydrogen and compared with those in iron. The measurements are in agreement with the expectations of the quark parton model. No significant differences indicative of nuclear binding effects in corresponding structure functions of protons and iron are observed. This may be of special interest in the case of the sea structure functions, since large differences are expected in some models.

5 data tables

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Experimental Study of the Nucleon Longitudinal Structure Function in Charged Current Neutrino and Anti-neutrinos Interactions

The CHARM collaboration Bergsma, F. ; Dorenbosch, J. ; Jonker, M. ; et al.
Phys.Lett.B 141 (1984) 129-132, 1984.
Inspire Record 199418 DOI 10.17182/hepdata.30554

The x dependence of the longitudinal structure function F L was determined with the CHARM neutrino detector exposed to neutrino and antineutrino wide-band beams of the CERN 400 GeV SPS. The results show a clear deviation from the Callan-Gross relation. The amount and the x dependence of this deviation are in agreement with the contribution coming from a finite transverse momentum of the partons in the nucleon if both the intrinsc and perturbative QCD terms are taken into account.

1 data table

VALUES OF Q**2 FOR EACH POINT IN THE TABLE ARE:- 0.76,3.0,9.3,16.6,18.9.


Nucleon Structure Functions from High-Energy Neutrino Interactions with Iron and QCD Results

MacFarlane, D. ; Purohit, M.V. ; Messner, R.L. ; et al.
Z.Phys.C 26 (1984) 1-12, 1984.
Inspire Record 195928 DOI 10.17182/hepdata.16212

Nucleon structure functions obtained from neutrino and anti-neutrino scattering on iron nuclei at high energies (Ev=30 to 250 GeV) are presented. These results are compared with the results of other lepton-nucleon scattering experiments. The structure functions are used to test the validity of the Gross-Llewellyn-smith sum rule, which measures the number of valence quarks in the nucleons, and to obtain leading and second order QCD fits.

19 data tables

Measured charged current total cross section.

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A Comparison of Charged Current Cross-sections and Structure Functions for Neutrino and Anti-neutrinos Beams on Hydrogen and Neon

The BEBC TST Neutrino collaboration Parker, M.A. ; Francois, T. ; Guy, J.G. ; et al.
Nucl.Phys.B 232 (1984) 1-20, 1984.
Inspire Record 192873 DOI 10.17182/hepdata.33899

Using BEBC equipped with a hydrogen-filled neon-surrounded track-sensitive target, the charged current cross sections and structure functions of hydrogen and neon targets traversed by the same neutrinos and antineutrinos are compared directly. The measured total cross-section ratios between hydrogen and neon allow precise total cross-section values for hydrogen to be inferred. Using this normalization, the ν and ν hydrogen data are combined and the quark distributions in free nucleons, parametrised as functions of ξ, are extracted. This free-nucleon parametrisation is then compared directly with the neon data in order to measure nuclear effects such as those recently reported by the EMC collaboration. Only small effects are seen, in excellent agreement with recent SLAC data in a more similar A and q 2 range.

3 data tables

Measured charged current total cross section.

Measured charged current total cross section.

AVERAGE Q**2 IS 6.9GEV**2 FOR NU AND 4.3GEV**2 FOR ANU.


Experimental Study of the Nucleon Structure Functions and of the Gluon Distribution from Charged Current Neutrino and anti-neutrinos Interactions

The CHARM collaboration Bergsma, F. ; Dorenbosch, J. ; Jonker, M. ; et al.
Phys.Lett.B 123 (1983) 269, 1983.
Inspire Record 181908 DOI 10.17182/hepdata.30729

Inclusive neutrino and antineutrino charged current interactions were studied in the CHARM detector exposed to neutrino and antineutrino Wide Band Beams of the CERN 400 GeV SPS. The x and Q 2 dependence of the structure functions F 2 and xF 3 and of the antiquark momentum distribution q were determined. The data have been interpreted in terms of QCD theory using the Furmanski-Petronzio method. In this way we have determined Λ LO = [190 −40 +70 ( stat ) ± 70 ( syst .)] MeV and the structure functions of quarks and gluons without specific assumptions on their analytic dependence. The results agree with previous experiments which relied on model assumptions in the analysis. We conclude that the model independent simultaneous analysis of the xF 3 , F 2 , q structure functions gives a more reliable determination of the gluon distribution in the nucleon.

2 data tables

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HERE THE QBAR IS D2(SIG(ANU))/DX/DY - (1-Y)**2*D2(SIG(NU))/DX/DY.