Date

MEASUREMENT OF THE TOTAL CROSS-SECTION FOR THE INTERACTION OF rho0 MESONS WITH INTRANUCLEAR NUCLEONS IN pi- C INTERACTIONS AT 5-GeV/c

Abdinov, O.B. ; Bairamov, A.A. ; Bogush, A.A. ; et al.
Sov.J.Nucl.Phys. 43 (1986) 398, 1986.
Inspire Record 217429 DOI 10.17182/hepdata.17565

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1 data table

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ASSOCIATED PRODUCTION OF THE K*+ (890) WITH OTHER PARTICLES AND THE RHO0 WITH OTHER PARTICLES IN INCLUSIVE K+ P REACTIONS AT 32-GEV/C

Knyazev, V.V. ; Tomaradze, A.G. ; Uvarov, V.A. ; et al.
Sov.J.Nucl.Phys. 43 (1986) 61-66, 1986.
Inspire Record 220945 DOI 10.17182/hepdata.10640

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12 data tables

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INVESTIGATION OF INCLUSIVE PROCESSES pi- A ---> p (backwards) X AT 40-GeV/c

Albini, E. ; Antipov, V.V. ; Bellini, G. ; et al.
Sov.J.Nucl.Phys. 43 (1986) 585, 1986.
Inspire Record 215986 DOI 10.17182/hepdata.9916

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3 data tables

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LIMITS ON CHARM PRODUCTION IN HADRONIC INTERACTIONS NEAR THRESHOLD

Christenson, J.H. ; Hummel, E. ; Kreiter, G.A. ; et al.
Phys.Rev.Lett. 55 (1985) 154, 1985.
Inspire Record 16192 DOI 10.17182/hepdata.3274

We present the results of an experiment to search for associated charm production near threshold in 13-GeV/c π−p interactions. A large aperture PWC spectrometer was sensitive to the decay fragments of the forward-produced D*−’s expected from the two-body reactions π−+p→D*−+Λc+,Σc +,. . . . The missing baryon mass was determined from the vector momenta of the incident pion and the candidate D*−. No evidence for these reactions was found, which resulted in a 7-nb upper limit (95% confidence level) for each of the cross sections σ(π−p→D*−Λc+) and σ(π−p→D*−Σc+).

2 data tables

Axis error includes +- 0.0/0.0 contribution (?////NOT GIVENDECAY-BR(BRN=D*(2010)- --> AD0 PI-,BR=64 IN PCT)//DECAY-BR(BRN=AD0 --> K+ PI-, BR=3 IN PCT)).

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First Measurement of the Reaction $\pi^- e \to \pi^- \pi^0 e$

Amendolia, S.R. ; Arik, M. ; Badelek, B. ; et al.
Phys.Lett.B 155 (1985) 457-460, 1985.
Inspire Record 213172 DOI 10.17182/hepdata.30413

The first observation of neutral pion production in π e inelastic scattering is presented. The cross section at 300 GeV for | t ‖>62;10 −3 (GeV / c ) 2 is 2.11 ± 0.47 nb, in good agreement with the theory of PCAC anomalies with 3 quark colours.

1 data table

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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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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

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Measurements of Tau Lepton Production and Decay

The PLUTO collaboration Berger, Christoph ; Genzel, H. ; Lackas, W. ; et al.
Z.Phys.C 28 (1985) 1, 1985.
Inspire Record 213241 DOI 10.17182/hepdata.16019

We have studied 419 τ pair events produced in the reactione+e−→τ+ τ− at a c.m. energy of 34.6 GeV. We measure the cross section and angular distribution, as well as the decay branching ratios. The production characteristics are consistent with the Standard Electroweak Model predictions of γ andZ0 interference. The branching ratios are generally consistent with the τ decaying according to standard weak interaction principles, but we observe somewhat more decays resulting in single charged hadrons plus neutrals than are predicted by present theory.

3 data tables

Corrected for radiative effects.

Measured cross section relative to Standard Model Prediction.

Asymmetry based on fits to angular distribution.


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

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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

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