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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
Table 1

No description provided.

Table 2

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Table 3

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Bose-Fermi U(6/2J+1) Supersymmetries And High-Spin Anomalies

Morrison, I. ; Jarvis, Peter D. ;
Nucl.Phys.A 435 (1985) 461-476, 1985.
Inspire Record 212932 DOI 10.17182/hepdata.17659

A supersymmetric extension of the interacting boson model (IBM) is constructed to describe high-spin anomalies in both even- and odd-mass spectra of the Hg, Pt region (190 ⩽ A ⩽ 200). Supergroup chains such as U ( 6 2j + 1 ) ⊃ Osp ( 6 2j + 1 ) ⊃ O (6) × Sp ( 6 2j + 1 )… U ( 6 2j + 1 ) ⊃ U ( 5 2j + 1 ) ⊃ Osp ( 5 2j + 1 )… incorporate a single j -shell fermion in addition to the usual “s” and “d” bosons ( L = 0 and L = 2). The orthosympletic supergroup reflects the strong pairing force in the subspace of the fermion intruder level. The model agrees favourably with experiment and microscopic calculation.

1 data table
Table 1

No description provided.


Magnetic Form Factor of the Deuteron

Auffret, S. ; Cavedon, J.M. ; Clemens, J.C. ; et al.
Phys.Rev.Lett. 54 (1985) 649-652, 1985.
Inspire Record 214266 DOI 10.17182/hepdata.20337

We have measured the deuteron magnetic form factor B(q2) for values of the momentum transfer squared between 7 and 28 fm−2. The data are compared with relativistic and nonrelativistic predictions including meson-exchange-current contributions. Significant disagreement is found for large momentum transfers.

2 data tables
Table 1

No description provided.

Table 2

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Continuum Dimuon Production in anti-p W Collisions at 125-GeV/c

Anassontzis, E. ; Katsanevas, S. ; Kostarakis, P. ; et al.
Phys.Rev.Lett. 54 (1985) 2572, 1985.
Inspire Record 213694 DOI 10.17182/hepdata.20379

The cross section for the reaction p¯N→μ+μ−X with muon pairs in the mass range 4<M<9 GeV/c2 and xF>0 was measured to be σ=0.104±0.005±0.008 nb/nucleon. The distributions dσdxF and M3dσdM were compared to the QCD-improved Drell-Yan model and to calculations including first-order QCD corrections, with use of deep-inelastic structure functions. Excellent agreement with the data was obtained if the calculations were multiplied by factors of 2.45 and 1.41, respectively.

1 data table
Table 1

No description provided.


Intermediate Mass Dimuon Events at the {CERN} $p \bar{p}$ Collider at $\sqrt{s}=540$-{GeV}

The UA1 collaboration Arnison, G. ; Allkofer, O.C. ; Astbury, A. ; et al.
Phys.Lett.B 155 (1985) 442-456, 1985.
Inspire Record 213203 DOI 10.17182/hepdata.49630

We report the observation of 21 dimuon events at the CERN p p Collider with the UA1 detector. The events range in invariant dimuon mass from 2 to 22 GeV / c 2 . The properties of these events are given. The bulk of the events are consistent with heavy-flavour production (mainly b b ) with a few candidates for Drell-Yan production. There remain a few events which are difficult to interpret in terms of these processes, in particular two events with isolated, like-sign muons.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


CHARGED PARTICLE MULTIPLICITIES IN PI-, K- AND ANTI-P INTERACTIONS WITH NUCLEI AT 40-GEV/C

The RISK collaboration Boos, E.G. ; Mosienko, A.M. ; Pokrovsky, N.A. ; et al.
Z.Phys.C 26 (1984) 43-52, 1984.
Inspire Record 214970 DOI 10.17182/hepdata.22350

Interactions of 40 GeV/c πp-,K− and\(\bar p\) on Li, C, S, Cu, CsI and Pb were studied with the RISK-streamer chamber spectrometer. We present multiplicities of negatively charged particles, as well as of protons, and the correlations between them. The normalized mean multiplicity of negative particles,R−, depends on\(\bar v\), the average number of inelastic collisions as\(R^ -= (0.73 \pm 0.04) + (0.34 \pm 0.02)\bar v\). The dependence of the normalized dispersion of negative particles,D−/<N−>, on the number of protons favours independent collision models and contradicts the coherent tube picture. The excess of fast positive particles behaves asA0.4 and shows, for the heavier nuclei, a clear correlation with identified protons.

2 data tables
Table 1

AVERAGE MULTIPLICITIES OF ALL CHARGED PARTICLES.

Table 2

AVERAGE MULTIPLICITIES OF ALL NEGATIVELY CHARGED PARTICLES.


MEASUREMENT OF P (POLARIZED) P (POLARIZED) ---> P P WITH A 16.5-GEV/C POLARIZED PROTON BEAM

Brown, K.A. ; Bruni, R.J. ; Cameron, P.R. ; et al.
Phys.Rev.D 31 (1985) 3017-3020, 1985.
Inspire Record 220234 DOI 10.17182/hepdata.23579

Using the new Brookhaven Alternating Gradient Synchrotron polarized proton beam and our polarized proton target, we measured the spin-spin correlation parameter Ann in 16.5-GeV/c proton-proton elastic scattering. We found an Ann of (6.1±3.0)% at P⊥2=2.2 (GeV/c)2. We also measured the analyzing power A in two independent ways, providing a good test of possible experimental errors. Comparing our new data with 12-GeV Argonne Zero Gradient Synchrotron data shows no evidence for strong energy dependence in Ann in this medium-P⊥2 region.

1 data table
Table 1

ERROR CONTAINS BOTH SYSTEMATIC AND STATISTICAL UNCERTAINTY.


TRANSVERSE SPIN DEPENDENCE OF THE P P TOTAL CROSS-SECTION DELTA sigma-t FROM 0.8-GEV/C TO 2.5-GEV/C

Madigan, W.P. ; Bell, D.A. ; Buchanan, J.A. ; et al.
Phys.Rev.D 31 (1985) 966-975, 1985.
Inspire Record 216906 DOI 10.17182/hepdata.23564

The difference ΔσT=σ(↓↑)-σ(↑↑) between the proton-proton total cross sections for protons in pure transverse-spin states, was measured at incident momenta 0.8 to 2.5 GeV/c in experiments performed at the Los Alamos Clinton P. Anderson Meson Physics Facility and the Argonne Zero Gradient Synchrotron. In agreement with other data, peaks were observed at center-of-mass energies of 2.14 and 2.43 GeV/c2, where D21 and G41 dibaryon resonances have been proposed.

2 data tables
Table 1

DATA FROM LAMPF EXPERIMENT.

Table 2

DATA FROM ARGONNE EXPERIMENT.


PRECISE MEASUREMENT OF THE PION CHARGE EXCHANGE FORWARD DIFFERENTIAL CROSS-SECTION AT 522-MEV/C

Gaille, F.C. ; Highland, V.L. ; Auerbach, L.B. ; et al.
Phys.Rev.D 30 (1984) 2408-2410, 1984.
Inspire Record 215121 DOI 10.17182/hepdata.23596

A precise measurement of the differential cross section at zero degrees for the pion charge-exchange reaction π−p→π0n at pπ=522 MeV/c has been made. The result is dσdΩ (0∘)=4.32±0.11 mb/sr.

1 data table
Table 1

DIFFERENTIAL CROSS SECTION AT THETA = 0.


NEGATIVE KAON AND ANTI-PROTON PRODUCTION NEAR 700-MEV/C BY 28.4-GEV/PROTONS

Snow, J.M. ; Axelrod, S. ; Morrison, R.L. ; et al.
Phys.Rev.D 32 (1985) 11-20, 1985.
Inspire Record 220912 DOI 10.17182/hepdata.23560

We present measurements of kaon and antiproton production cross sections in the momentum region of 700 MeV/c from 0° to 10° by 28.4-GeV/c protons on complex nuclei. A model to describe the A dependence of these cross sections is discussed and compared with these and other data.

5 data tables
Table 1

No description provided.

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Table 3

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