Hinode, F.
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REACTION ANTI-P C-12 ---> ANTI-N X AT 590-MEV/C

Nakamura, K. ; Fujii, T. ; Kageyama, T. ; et al.
Phys.Rev.C 31 (1985) 1853-1856, 1985.
Inspire Record 220552 DOI 10.17182/hepdata.26214

The antineutron angular distribution in the reaction p¯C→n¯X was measured at 590 MeV/c. The shape of the distribution is found to be similar to that of the elementary process p¯p→n¯n, which indicates that the quasi-free process is the dominant mechanism for p¯C→n¯X. The antineutron production cross section per bound proton in the carbon nucleus is 0.14 times that for a free proton.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


A STRONG ENERGY DEPENDENCE OF THE ANALYZING POWER IN THE P P ---> D PI+ REACTION AND THE QUESTION OF AN ISOVECTOR DIBARYON RESONANCE

Bertini, R. ; Arvieux, J. ; Boivin, M. ; et al.
Phys.Lett.B 162 (1985) 77-80, 1985.
Inspire Record 221962 DOI 10.17182/hepdata.30330

The angular distributions of the analyzing power for the pp → dπ + reaction have been measured at seven energies T p = 1.2, 1.4, 1.6, 1.7, 1.8, 2.0 and 2.3 GeV. The data show a strong energy dependence with a structure centered at √ s π d = 2.66 GeV. Possible interpretations are presented in the frame of the OPE model and involving the question of the excitation of a dibaryon resonance.

7 data tables
Table 1

No description provided.

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Table 3

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FRAGMENTATION INTO STRANGE PARTICLES IN HIGH-ENERGY NEUTRINO P, neutrino N, ANTI-NEUTRINO P AND ANTI-NEUTRINO N INTERACTIONS

The AMSTERDAM-BERGEN-BOLOGNA-PADUA-PISA-SACLAY-TURIN collaboration Allasia, D. ; Angelini, C. ; Baldini, A. ; et al.
Phys.Lett.B 154 (1985) 231-235, 1985.
Inspire Record 218756 DOI 10.17182/hepdata.30415

The fragmentation of the hadronic system into Λ, Σ(1385), K ) and K ∗ (892) in deep-inelastic charged-current interactions of high energy neutrinos and antineutrinos with proton and neutron is analyzed. The results obtained for the production of these particles from the various initial states are compared with each other and with the predictions of the Lund fragmentation model. This comparison shows that a spectator diquark does not fragment as a whole in a fraction of the interactions. The role of the sea quarks in the baryon formation process is underlined. Strange vector and pseudoscalar mesons are likely to be produced at similar rates.

3 data tables
Table 1

No description provided.

Table 2

SIG(C=LAMBDA) denotes the inclusive LAMBDA production in the same reaction.

Table 3

SIG(C=KS) denotes the inclusive KS production in the same reaction.


A Search for F Production in 360-{GeV}/$c \pi^- p$ Interactions

The LEBC-EHS collaboration Aguilar-Benitez, M. ; Allison, W.W. ; Baland, J.F. ; et al.
Phys.Lett.B 156 (1985) 444-450, 1985.
Inspire Record 214934 DOI 10.17182/hepdata.30417

We present the results of a search for charm F mesons in 360 GeV/ c π − p interactions. Several methods have been used; all yield no evidence for the F and are interpreted as 90% confidence level cross section upper limits.

2 data tables
Table 1

D/S+- lifetime was assumed tau = 3.2*10**-13 s.

Table 2

D/S+- lifetime was assumed tau = 3.2*10**-13 s.


MEASUREMENT OF COUPLING CONSTANT GAMMA ---> 3 PI IN THE PROCESS OF PION PAIR PRODUCTION BY PIONS IN NUCLEAR COULOMB FIELD. (IN RUSSIAN)

Antipov, Yu.M. ; Batarin, V.A. ; Bessubov, V.A. ; et al.
Dubna Jinr - N11-85 (85,REC.OCT.) 11-19, 1985.
Inspire Record 221558 DOI 10.17182/hepdata.38294

None

4 data tables
Table 1

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Table 2

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Table 3

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MEASUREMENT OF N P AND P P ASYMMETRY WITH AN ACCELERATED POLARIZED DEUTERON BEAM FROM 725-MEV TO 1000-MEV PER NUCLEON

Bystricky, J. ; Deregel, J. ; Lehar, F. ; et al.
Nucl.Phys.A 444 (1985) 597-610, 1985.
Inspire Record 222367 DOI 10.17182/hepdata.37022

The accelerated polarized deuteron beam of Saturn II was used to measure the analyzing power for np elastic scattering at five energies. The left-right asymmetries ε = (L + R)/(L + R) for np and for pp elastic scattering were measured simultaneously by CH 2 − carbon subtraction using one of the beam-line polarimeters. The analyzing power A 00 n 0 (np) is given by the ratio ε np d / ε pp d multiplied by the known analyzing power for pp elastic scattering. Experimental evidence is consistent with the underlying assumption that in the kinetmatic region of the experiment the ratio of the np to pp analyzing powers for scattering of quasifree nucleons in deuterons is the same as for scattering of free neutrons and protons, respectively.

5 data tables
Table 1

No description provided.

Table 2

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Table 3

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LEADING PROTON AND ANTI-PROTON DISTRIBUTIONS IN PROTON NUCLEUS AND ANTI-PROTON NUCLEUS INTERACTIONS

Bailey, R. ; Blanar, G. ; Bosman, M. ; et al.
Z.Phys.C 29 (1985) 1-8, 1985.
Inspire Record 221966 DOI 10.17182/hepdata.15989

We present a study of leading protons and antiprotons inp-nucleus and\(\bar p\)-nucleus on Be, Cu, Ag, W, and U targets. The experiment was performed at the CERN-SPS at a beam energy of 120 GeV. For all targets a suppression of secondary antiprotons with respect to protons is observed. The difference between the\(\bar p\) andp spectra increases with decreasing χ-values and the effect is stronger for heavier nuclei. The features of the data are qualitatively consistent with multiple-collisions modesls. The data are analysed in terms of a dual parton model which gives a satisfactory description of leadingp and\(\bar p\) spectra.

1 data table
Table 1

No description provided.


OBSERVATION OF AN ENHANCEMENT IN ANTI-P P ---> PI+ PI- AND ANTI-P P ---> K+ K- CROSS-SECTIONS AT ANTI-P MOMENTUM OF APPROXIMATELY 500-MEV/C

Tanimori, T. ; Fujii, T. ; Kageyama, T. ; et al.
Phys.Rev.Lett. 55 (1985) 1835-1838, 1985.
Inspire Record 221965 DOI 10.17182/hepdata.20293

The reactions p¯p→π+π− and K+K− have been studied at 390, 490, 590, 690, and 780 MeV/c. An enhancement of about 150 μb has been observed in the cross sections of both reactions at the same beam momentum of 490 MeV/c. If this structure is interpreted as a meson resonance, it has a mass of 1940 ± 20 MeV and a width of less than 40 MeV.

11 data tables
Table 1

No description provided.

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Table 3

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A Measurement of $\bar{p} p$ and $p p$ Elastic Scattering in the Dip Region at $\sqrt{s}=53$-{GeV}

Breakstone, A. ; Crawley, H.B. ; Dallavalle, G.M. ; et al.
Phys.Rev.Lett. 54 (1985) 2180, 1985.
Inspire Record 212895 DOI 10.17182/hepdata.20368

We have measured the differential cross section for p¯p and pp elastic scattering at s=53 GeV in the interval 0.5<|t|<4.0 (GeV/c)2 at the CERN intersecting storage rings using the split-field magnet detector. The shape of the differential cross section differs significantly between p¯p and pp scattering in the region 1.1<|t|<1.5 (GeV/c)2, with p¯p data showing a less pronounced dip structure than pp data.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


Charged Multiplicity of Hadronic Events Containing Heavy Quark Jets

Rowson, P.C. ; Trilling, G. ; Abrams, G.S. ; et al.
Phys.Rev.Lett. 54 (1985) 2580-2583, 1985.
Inspire Record 212819 DOI 10.17182/hepdata.20380

The charged-particle multiplicities of hadronic events deriving from produced bottom or charm quarks have been measured in the Mark II detector at PEP in e+e− annihilation at 29GeV. For events containing one semileptonic and one hadronic weak decay, we find multiplicities of 15.2±0.5±0.7 for bottom and 13.0±0.5±0.8 for charm. The corresponding multiplicities of charged particles accompanying the pair of heavy hadrons are 5.2±0.5±0.9 for bottom, and 8.1±0.5±0.9 for charm.

7 data tables
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