Isakov, V.V.
Neutral Current
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A High Statistics Measurement of the Proton Structure Functions F(2) (x, Q**2) and R from Deep Inelastic Muon Scattering at High Q**2

The BCDMS collaboration Benvenuti, A.C. ; Bollini, D. ; Bruni, G. ; et al.
Phys.Lett.B 223 (1989) 485-489, 1989.
Inspire Record 276661 DOI 10.17182/hepdata.12557

We present results on a high statistics study of the proton structure functions F 2 ( x , Q 2 ) and R = σ L / σ T measured in deep inelastic scattering of muons on a hydrogen target. The analysis is based on 1.8 × 10 6 events after all cuts, recorded at beam energies of 100, 120, 200 and 280 GeV and covering a kinematic range 0.06 ⩽ x ⩽ 0.80 and 7 GeV 2 ⩽ Q 2 ⩽260 GeV 2 . At small x , we find R to be different from zero in agreement with predictions of perturbative QCD.

105 data tables
Table 1

THE AVERAGE VALUES OF Q**2 AT EACH OF THE X VALUES LISTED IN THIS TABLE ARE 15,20,20,25,30,35,40,45,50,50.

Table 2

R=SIG(L)/SIG(T) IS TAKEN TO BE ZERO.

Table 3

R=SIG(L)/SIG(T) IS TAKEN TO BE ZERO.

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A High Statistics Measurement of the Nucleon Structure Function F(2) (X,$Q^2$) From Deep Inelastic Muon - Carbon Scattering at High $Q^2$

The BCDMS collaboration Benvenuti, A.C. ; Bollini, D. ; Bruni, G. ; et al.
Phys.Lett.B 195 (1987) 91-96, 1987.
Inspire Record 247013 DOI 10.17182/hepdata.30107

We present results from a high statistics study of the nucleon structure function F 2 ( x , Q 2 ) measured in deep inelastic scattering of muons on carbon in the kinematic range 0.25⩽ x ⩽0.80 and Q 2 ⩾25 GeV 2 . The analysis is based on 1.5×10 6 reconstructed events recorded at beam energies of 120, 200 and 280 GeV. R = σ L / σ T is found to be independent of x in the range 0.25⩽ x ⩽0.07 and 40 GeV 2 ⩽ Q 2 ⩽200 GeV 2 with a mean value R =0.015±0.013 ( stat ) ±0.026 (syst.).

19 data tables
Table 1

R=SIG(L)/SIG(T).

Table 2

No description provided.

Table 3

No description provided.

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Nuclear Effects in Deep Inelastic Muon Scattering on Deuterium and Iron Targets

The BCDMS collaboration Benvenuti, A.C. ; Bollini, D. ; Bruni, G. ; et al.
Phys.Lett.B 189 (1987) 483-487, 1987.
Inspire Record 244886 DOI 10.17182/hepdata.30200

New Results are presented on nuclear effects in deep inelastic muon scattering on deuterium and iron targets at large Q 2 . The ratio F Fe 2 (x) F D 2 2 (x) measured in the kinematic range 0.06⩽ x ⩽0.70, 14GeV 2 ⩽ Q 2 ⩽70 GeV 2 is in good agreement with earlier measurements in the region of x > 0.25. At lower x , the structure function ratio exhibits an enhancement of ≈5%.

1 data table
Table 1

Q**2 RANGE FOR EACH X BIN IS AS FOLLOWS: 14 TO 20, 16 TO 30, 18 TO 35, 18 TO 46, 20 TO 106, 23 TO 106, 23 TO 150, 26 TO 200, 26 TO 200, 26 TO 200 GEV**2.


NEW RESULTS ON NUCLEAR EFFECTS IN DEEP INELASTIC MUON SCATTERING ON DEUTERIUM AND IRON TARGETS

The BCDMS collaboration Benvenuti, A.C. ; Bollini, D. ; Bruni, G. ; et al.
JINR-E1-86-591, 1986.
Inspire Record 238756 DOI 10.17182/hepdata.39470

None

2 data tables
Table 1

VALUES OBTAINED USING ASSUMPTION R=0.

Table 2

VALUES OBTAINED USING ASSUMPTION R=0.


A Measurement of Nuclear Effects in Deep Inelastic Muon Scattering on Deuterium, Nitrogen and Iron Targets

The BCDMS collaboration Bari, G. ; Benvenuti, A.C. ; Bollini, D. ; et al.
Phys.Lett.B 163 (1985) 282, 1985.
Inspire Record 216817 DOI 10.17182/hepdata.30331

New data is presented on the ratios of structure functions F 2 ( x , Q 2 ) measured in deep inelastic muon scattering with deuterium, nitrogen, and iron targets. The existence of nuclear effects at large Q 2 is confirmed with improved systematic accuracy. The ratio F 2 Fe ( x ) F 2 D 2 ( x ) covers the range 0.20 ⩽ x ⩽ 0.70 and is in agreement with earlier measurements. The ratio F 2 N 2 ( x )/ F 2 D 2 ( x ) is measured over the range 0.08 ⩽ x ⩽ 0.70 and is compatible with unity below x = 0.3.

2 data tables
Table 1

VALUES OF Q2 CORRESPONDING TO THE X-BINS IN THIS TABLE ARE:- 46-106,46-106,53-150,53-200,70-200,80-200 RESPECTIVELY.

Table 2

VALUES OF Q2 CORRESPONDING TO THE X-BINS IN THIS TABLE ARE:- 26-40,26-61,30-80,30-106,30-106,30-150,30-200,35-200,46-200.


NEUTRINO (ANTI-NEUTRINO) INTERACTION CROSS-SECTION RATIO IN NEUTRAL AND CHARGED CURRENT CHANNELS UP TO 30-GeV

Ammosov, V.V. ; Baranov, D.S. ; Ermolaev, V.I. ; et al.
IFVE-85-110, 1985.
Inspire Record 219781 DOI 10.17182/hepdata.40948

None

3 data tables
Table 1

Axis error includes +- 0.0/0.0 contribution (?////TOTAL SYSTEMATICS).

Table 2

Axis error includes +- 0.0/0.0 contribution (?////TOTAL SYSTEMATICS).

Table 3

Axis error includes +- 0.0/0.0 contribution (?////TOTAL SYSTEMATICS).


RESULTS FOR NEUTRAL TO CHARGED CURRENT CROSS-SECTION RATIOS FROM neutrino AND anti-neutrino NUCLEUS INTERACTIONS BELOW 30-GeV

Ammosov, V.V. ; Baranov, D.S. ; Ermolaev, V.I. ; et al.
Z.Phys.C 30 (1986) 569, 1986.
Inspire Record 215972 DOI 10.17182/hepdata.15876

Using the freon filled bubble chamber SKAT in the (anti)neutrino wide band beam of the Serpukhov accelerator we determine the neutral to charged current cross section ratios for neutrinos and antineutrinos below 30GeV. From these ratios we calculate in leading order a mixing parameter of the standard model of Θw=0.215±0.029.

3 data tables
Table 1

Axis error includes +- 0.0/0.0 contribution (?////TOTAL SYSTEMATICS).

Table 2

Axis error includes +- 0.0/0.0 contribution (?////TOTAL SYSTEMATICS).

Table 3

Axis error includes +- 0.0/0.0 contribution (?////TOTAL SYSTEMATICS).


Study of nuclear effects in the determination of nucleon structure functions with heavy targets

The Bologna-CERN-Dubna-Munich-Saclay collaboration Benvenuti, A.C. ; Bollini, D. ; Bruni, G. ; et al.
(1984) I.219, 1984.
Inspire Record 207569 DOI 10.17182/hepdata.39514

None

4 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

F2(FE)/F2(DEUT) AVERAGED OVER Q2.

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NEUTRAL STRANGE PARTICLE PRODUCTION IN ANTI-NEUTRINOS INDUCED NEUTRAL CURRENT INTERACTIONS

Asratian, A.E. ; Efremenko, V.I. ; Fedotov, A.V. ; et al.
Phys.Lett.B 140 (1984) 127-129, 1984.
Inspire Record 200832 DOI 10.17182/hepdata.10145

The study of neutral strange particle production in antineutrino-induced neutral current interactions is presented. The total multiplicity of neutral strange particles and the K 0 multiplicity in the current fragmentation region ( z >0.3) are used to estimate in two ways the coupling strength of the weak neutral current to the strange quark.

4 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Measurement of the Interference Structure Function Xg(3) (X) in Muon - Nucleon Scattering

Argento, A. ; Benvenuti, A.C. ; Bollini, D. ; et al.
Phys.Lett.B 140 (1984) 142-144, 1984.
Inspire Record 195945 DOI 10.17182/hepdata.13025

The interference structure function xG 3 ( x ) has been measured for the first time scattering positive and negative muons of opposite helicity off a carbon target. The x dependence observed for Q 2 between 40 and 180 (GeV/c 2 ) is in good agreement with predictions of the quark-parton model. The measured ratio 2( a u Q u + a d Q d )/( Q u 2 + Q d 2 = 1.87 ± 0.25 (stat.) ± 0.24 (syst.) is consistent with the hypothesis of fractional quark charges and determines the sign of Q u − Q d to be positive.

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.