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Interaction of 9-BeV protons with free and quasifree nucleons in photographic emulsinos

Bogachev, N.P. ; Bunyatov, S.A. ; Gramenitskii, I.M. ; et al.

Sov.Phys.JETP 10 (1960) 872-877, 1960.

Inspire Record 1392948 DOI 10.17182/hepdata.39967

None

1 data table

Table 1

No description provided.

Search for first-generation scalar and vector leptoquarks

The D0 collaboration Abazov, V.M. ; Abbott, B. ; Abdesselam, A. ; et al.

Phys.Rev.D 64 (2001) 092004, 2001.

Inspire Record 557085 DOI 10.17182/hepdata.42922

We describe a search for the pair production of first-generation scalar and vector leptoquarks in the eejj and enujj channels by the D0 Collaboration. The data are from the 1992--1996 ppbar run at sqrt{s} = 1.8 TeV at the Fermilab Tevatron collider. We find no evidence for leptoquark production; in addition, no kinematically interesting events are observed using relaxed selection criteria. The results from the eejj and enujj channels are combined with those from a previous D0 analysis of the nunujj channel to obtain 95% confidence level (C.L.) upper limits on the leptoquark pair-production cross section as a function of mass and of beta, the branching fraction to a charged lepton. These limits are compared to next-to-leading-order theory to set 95% C.L. lower limits on the mass of a first-generation scalar leptoquark of 225, 204, and 79 GeV/c^2 for beta=1, 1/2, and 0, respectively. For vector leptoquarks with gauge (Yang-Mills) couplings, 95% C.L. lower limits of 345, 337, and 206 GeV/c^2 are set on the mass for beta=1, 1/2, and 0, respectively. Mass limits for vector leptoquarks are also set for anomalous vector couplings.

3 data tables

Table 1

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Experiments at VEPP-2M with SND detector

The SND collaboration Achasov, M.N. ; Aulchenko, V.M. ; Baru, S.E. ; et al.

BINP-98-65, 1998.

Inspire Record 476386 DOI 10.17182/hepdata.50374

Short overview of experiments with SND detector at VEPP-2M e^+e^- collider in the energy range 2E = 400 - 1400 MeV and preliminary results of data analysis are presented.

4 data tables

Table 1

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The Differential cross-sections for inclusive reactions pi+ A ---> eta X at 10-GeV

Budagov, Yu.A. ; Chirikov-Zorin, I.E. ; Dzhelepov, V.P. ; et al.

Nucl.Phys.B., 1991.

Inspire Record 322741 DOI 10.17182/hepdata.39338

13 data tables

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Quasielastic Nucleon and Hyperon Production by Neutrinos and Anti-neutrinos With Energies Below 30-{GeV}

The SKAT collaboration Brunner, J. ; Grabosch, H.J. ; Kaufmann, H.H. ; et al.

Z.Phys.C 45 (1990) 551, 1990.

Inspire Record 26520 DOI 10.17182/hepdata.15281

The cross sections of neutrino and antineutrino quasielastic reactions$vn \to \mu ^ -p,\bar vp \to \mu ^ +n,\bar vp \to \mu ^ +\Lambda$ were studied in the neutrino energy range between 3 and 30 GeV. In comparison withV-A theory axial mass parameters ofMA=(1.06±0.05±0.14) GeV/c2 from neutrino andMA=(0.71±0.10±0.20) GeV/c2 from antineutrino data were found. The total cross-section for the hyperon production process can be described byMA=1.0 GeV/c2.

1 data table

Table 1

Measured Quasi-Elastic total cross section.

Study of Quasielastic Reactions Neutrino $n \to \mu^- p$ and Anti-neutrino $p \to \mu^+ n$ in Bubble Chamber Skat at 3-{GeV} to 20-{GeV}

Grabosch, H.J. ; Kaufmann, K.K. ; Krecker, U. ; et al.

Sov.J.Nucl.Phys. 47 (1988) 1032-1034, 1988.

Inspire Record 239545 DOI 10.17182/hepdata.40876

None

4 data tables

Table 1

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INCLUSIVE rho0 MESON PRODUCTIONS IN NEUTRINO INTERACTIONS AT SKAT CHAMBER

Ammosov, V.V. ; Ivanilov, A.A. ; Ivanov, P.V. ; et al.

IFVE-86-133, 1986.

Inspire Record 234594 DOI 10.17182/hepdata.10524

None

7 data tables

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A-dependence of $\eta$ Meson Inclusive Production at 10.5-{GeV}/$c$

Bitsadze, G.S. ; Budagov, Yu.A. ; Chirikov-Zorin, I.E. ; et al.

Nucl.Phys.B 279 (1987) 770, 1987.

Inspire Record 231123 DOI 10.17182/hepdata.39482

The experimental results are presented for ratios of ν-meson inclusive differential cross sections in 10.5 GeV/ c π + p, π + D and π + A collisions, R D/p =(d σ /d x F )( π + D → η X)/ (d σ /d x F ) π + p→ η X), R A =(d σ /d x F )( π + D→ η X) in the beam fragmentation region. The results are based on the statistics of ≈ 5 × 10 4 detected η → 2 γ decays. It is shown that the power α in the parametrisation R A ≈ A α ( xf ) does not change significantly with x F and its mean value is 0.50±0.02. The lower limit is obtained for the effective coefficient with string tension in the colour string model, κ ⩾ 3 GeV/fm. The observed growth of R A with x F can be explained by an assumption of a neutron halo with the factor H ≈ 4 in the nuclei.

5 data tables

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