Inclusive Photoproduction of $\phi$, $K^*$ (890) and $K^*$ (1420) in the Photon Energy Range 20-{GeV} to 70-{GeV}

The Omega Photon collaboration Atkinson, M. ; Axon, T.J. ; Barberis, D. ; et al.
Z.Phys.C 30 (1986) 521, 1986.
Inspire Record 218609 DOI 10.17182/hepdata.15900

Inclusive photoproduction of ϕ,K*0(890),\(\bar K*^0 \) andK*0(1420),\(\bar K*^0 \) has been studied in γp collisions with photons of energy 20 to 70 GeV and in the range 0.1≦xF≦0.95 [0.4≦xF≦0.8 for the\(\mathop K\limits^{( - )} *\)(1420)],xF being the Feynman variable of the vector/tensor meson. The cross-sections for these processes, averaged over the photon energy range and integrated overxF are given. The inclusive ϕ production in the forward direction can be described quantitatively by a triple-Regge model calculation. The remaining ϕ production and the totalK*0(890) and\(\bar K*^0 \) production are consistent with a quark fusion picture.

1 data table

No description provided.


Forward Produced Protons and Anti-protons in Deep Inelastic Muon Proton Scattering

The European Muon collaboration Aubert, J.J. ; Bassompierre, G. ; Becks, K.H. ; et al.
Phys.Lett.B 103 (1981) 388, 1981.
Inspire Record 166178 DOI 10.17182/hepdata.31185

A significant rate of forward proton and antiproton production has been observed in 120 and 280 GeV muon-proton scattering. The z and p T 2 distributions are presented. The dependence of the normalized production cross section on the muon variables x and Q 2 is studied.

2 data tables

No description provided.

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Inclusive Production of Lambdas and Anti-lambdas in $\gamma p$ Interactions for Photon Energies Between 25-{GeV} and 70-{GeV}

The Bonn-CERN-Ecole Poly-Glasgow-Lancaster-Manchester-Orsay-Paris-Rutherford-Sheffield collaboration Aston, D. ; Atkinson, M. ; Bailey, R. ; et al.
Nucl.Phys.B 195 (1982) 189-202, 1982.
Inspire Record 167734 DOI 10.17182/hepdata.34176

Results are presented on the inclusive photoproduction of λ and λ for incident photon energies between 25 and 70 GeV. The slope parameter of the p T 2 distribution is found to be 2.83±0.1 GeV −2 for λ and 3.28±0.25 GeV −2 for λ . The x F distributions, measured in the range −0.2 to 0.7, show that while λ are produced centrally, λ production extends to more negative values of x F ; the shapes show no energy dependence and are similar to those in pion-induced reactions. The polarization of the produced λ is less than 10%. The results are discussed in terms of vector dominance and quark fusion models.

4 data tables

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Total Cross-Sections of pi+-, K+-, p, and anti-p on Protons and Deuterons Between 23-GeV/c and 280-GeV/c

Carroll, A.S. ; Chiang, I.-H. ; Kycia, T.F. ; et al.
Phys.Lett.B 61 (1976) 303-308, 1976.
Inspire Record 98502 DOI 10.17182/hepdata.27688

New measurements are reported of total cross sections for π ± , K ± , p and p on protons and deuterons at 11 momenta between 23 and 280 GeV/ c .

24 data tables

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Neutron-Proton Elastic Scattering from 10-GeV/c to 70-GeV/c

Bohmer, V. ; Engler, J. ; Flauger, W. ; et al.
Nucl.Phys.B 91 (1975) 266-278, 1975.
Inspire Record 98395 DOI 10.17182/hepdata.32033

The neutron-proton elastic differential cross section has been measured for incident momenta between 10 and 70 GeV/c and for values of the momentum transfer squared between 0.1 and 2.8 (GeV/c) 2 . The forward peak and the break at about ∣ t ∣ = 1 (GeV/ c ) 2 are very similar to corresponding pp data.

2 data tables

No description provided.

No description provided.


Total cross-sections of pi+, K+ and p on protons and deuterons in the momentum range 15-GeV/c to 60-GeV/c

Denisov, S.P. ; Donskov, S.V. ; Gorin, Yu.P. ; et al.
Phys.Lett.B 36 (1971) 415-421, 1971.
Inspire Record 67626 DOI 10.17182/hepdata.28398

Total cross-section data are presented for protons, positive pions and positive kaons on protons and deuterons in the momentum range 15 GeV/ c to 60 GeV/ c in 5 GeV/ c steps.

3 data tables

No description provided.

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Total cross-sections of pi-minus, k-minus, and anti-p on protons and deuterons in the momentum range 20-65 gev/c

The IHEP-CERN collaboration Allaby, J.V. ; Bushnin, Yu.B. ; Denisov, S.P. ; et al.
Phys.Lett.B 30 (1969) 500-505, 1969.
Inspire Record 56636 DOI 10.17182/hepdata.6171

Total cross-section data are presented for negative pions, kaons, and antiprotons on protons and deuterons in the momentum range 20 GeV/ c to 65 GeV/ c in 5 GeV/ c steps.

3 data tables

Axis error includes +- 0.0/0.0 contribution.

No description provided.

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Measurement of Leptonic Branching Ratios of the $\Upsilon$ (9.46)

The PLUTO collaboration Berger, Christoph ; Lackas, W. ; Raupach, F. ; et al.
Z.Phys.C 1 (1979) 343, 1979.
Inspire Record 140818 DOI 10.17182/hepdata.16475

The electronic width Γee and the muonic branching ratioBμμ=Γμμ/Γtot of the Γ(9.46) have been measured as Γee=(1.33±0.14) andBμμ=(2.2±2.0)%. From these values a lower limit of Γtot<23keV for the total width of the Γ(9.46) is obtained.

2 data tables

THE DATA POINTS INCLUDE 10 PCT OF THE TAU HEAVY LEPTON PAIR EVENTS.

NUMERICAL VALUES MEASURED OFF GRAPH IN PREPRINT.


Measurements of Elastic Rho and Phi Meson Photoproduction Cross-Sections on Protons from 30 GeV to 180 GeV

Egloff, R.M. ; Davis, P.J. ; Luste, G. ; et al.
Phys.Rev.Lett. 43 (1979) 657, 1979.
Inspire Record 141059 DOI 10.17182/hepdata.20740

The elastic photoproduction cross sections for ρ and ϕ mesons from protons have been measured from 30 to 180 GeV. The energy dependences agree well with predictions made by using vector-meson dominance and an additive quark model. The ρ cross section is approximately constant with energy while the ϕ cross section rises from 0.5 to 0.7 μb with increasing energy.

1 data table

No description provided.


MEASUREMENT OF J / psi PRODUCTION IN 280-GeV/c mu+ IRON INTERACTIONS

The European Muon collaboration Aubert, J.J. ; Bassompierre, G. ; Becks, K.H. ; et al.
Phys.Lett.B 89 (1980) 267-270, 1980.
Inspire Record 143938 DOI 10.17182/hepdata.27264

Virtual photoproduction of J/ ψ mesons has been measured for 280 GeV muon iron interactions in an iron/scintillator calorimeter target. The J/ψ's were identified by their decay into muon pairs. 315 events were observed, about half of which were elastic. The t , Q 2 and v distributions of these elastic events are presented. The v dependence is measured between 40 and 180 Mev and compared with lower energy photoproduction results. The Q 2 dependence is compared with the predictions of the vector dominance model.

4 data tables

TPRIME DISTRIBUTION OF ELASTIC J/PSI EVENTS FOR ALL Q2 AND NU WITH 280 GEV MUON BEAM.

NORMALIZED Q**2 DISTRIBUTION OF ELASTIC J/PSI EVENTS FOR ALL NU AND T WITH 280 GEV MUON BEAM.

EXTRAPOLATION OF Q**2 AND T DEPENDENCE TO CALCULATE D(SIG)/DT AT Q**2=0 AND T=0 FOR ELASTIC J/PSI PHOTOPRODUCTION PER NUCLEON.

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