Subedi, R.
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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.

Table 2

No description provided.

Table 3

No description provided.

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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.


Upper Limits for $B \bar{B}$ Production in $\pi^-$ Tungsten Interactions at 194-{GeV}/$c$

The NA10 collaboration Ereditato, A. ; Gorini, E. ; Strolin, Paolo Emilio ; et al.
Phys.Lett.B 157 (1985) 463-468, 1985.
Inspire Record 213161 DOI 10.17182/hepdata.30393

We present a study of events with three muons in the final state, produced in π − -tungsten interactions at 194 GeV/ c . Trimuons can be attributed to B-meson pair production, and this allows us to set (model-dependent) upper limits for the corresponding cross section. Assuming a correlated central production model, we obtain the limit of 1.5 nb per nucleon at the 95% confidence level.

1 data table
Table 1

No description provided.


MEASUREMENT OF K(LL) AND K(NN) IN P (polarized) D ----> N (polarized) P P AT 500-MEV, 650-MEV AND 800-MEV

Chalmers, J.S. ; Ditzler, W.R. ; Shima, T. ; et al.
Phys.Lett.B 153 (1985) 235-239, 1985.
Inspire Record 217080 DOI 10.17182/hepdata.30426

Measurements of the spin transfer parameters, K NN and K LL , at 500, 650 and 800 MeV are presented for the reaction p d → n pp at 0°. The data are useful input to the NN data base and indicate that the quasi-free charge exchange (CEX) reaction us a useful mechanism for producing neutrons with at least 40% polarization at energies as low as 500 MeV.

1 data table
Table 1

QUASI-FREE NP ELASTIC SCATTERING.


ANGULAR AND ENERGY DEPENDENCE OF THE CROSS-SECTION AND ANALYZING POWER OF THE REACTION P P ----> D PI+ BETWEEN 725-MEV AND 1000-MEV

Mayer, B. ; Bertini, R. ; Cameron, J.M. ; et al.
Nucl.Phys.A 437 (1985) 630-642, 1985.
Inspire Record 217258 DOI 10.17182/hepdata.37040

The differential cross section and analyzing power of the reaction pp → d π + were measured for nine incident proton energies between 725 and 1000 MeV. A magnetic spectrometer was used to detect either deuterons or pions. Cross-section and analyzing-power angular distributions were respectively fitted with Legendre polynomial and associated Legendre function expansions, the coefficients of which were found to vary smoothly with energy in the vicinity of the alleged 3 F 3 dibaryon resonance.

12 data tables
Table 1

Data present here in form of Legendre polynomial fit.

Table 2

Legendre Polynomial fit to cross section.

Table 3

Legendre polynomial fit to analysing power.

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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

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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A STUDY OF THE REACTIONS GAMMA P ---> OMEGA P AND GAMMA P ---> OMEGA DELTA+

The LAMP2 Group collaboration Barber, D.P. ; Dainton, J.B. ; Lee, L.C.Y. ; et al.
Z.Phys.C 26 (1984) 343-351, 1984.
Inspire Record 215619 DOI 10.17182/hepdata.16143

The differential and total corss sections and the decay density matrix elements have been measured for the reactions, γp→ωp and γp→ωΔ+ (1232) in the photon energy range 2.8 to 4.8 GeV. The total cross sections for ωΔ+ (1232) photo-production are found to be slightly larger than those for elastic ω photo-production in this energy range. The data are compared to the predictions of a theoretical model and the contributing exchange mechanics are discussed.

14 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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POLARIZATION EFFECTS IN RHO0 MESON PRODUCTION IN ANTI-PROTON PROTON INTERACTIONS AT 22.4-GEV/C, 12-GEV/C, AND 5.7-GEV/C

Batyunya, B.V. ; Boguslavsky, I.V. ; Boos, E.G. ; et al.
Phys.Rev.Lett. 55 (1985) 562-565, 1985.
Inspire Record 221353 DOI 10.17182/hepdata.20274

The ρ0-meson spin alignment is studied in p¯p interactions at 22.4 and 12 GeV/c and in the reaction p¯p→2π++2π−+neutrals at 5.7 GeV/c. An essential ρ0-meson spin alignment is observed. The values of the ρ00T element of the ρ0-meson spin-density matrix in the transversity frame are 0.56 ± 0.07, 0.53 ± 0.05, and 0.54 ± 0.04 for the above-mentioned interactions, respectively. An increase of ρ00T with ρ0 transverse momentum is obtained.

4 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

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RESULTS FOR NEUTRAL TO CHARGED CURRENT CROSS-SECTION RATIOS FROM neutrino AND anti-neutrino NUCLEUS INTERACTIONS BELOW 30-GeV

Ammosov, V.V. ; Baranov, D.S. ; Ermolaev, V.I. ; et al.
Z.Phys.C 30 (1986) 569, 1986.
Inspire Record 215972 DOI 10.17182/hepdata.15876

Using the freon filled bubble chamber SKAT in the (anti)neutrino wide band beam of the Serpukhov accelerator we determine the neutral to charged current cross section ratios for neutrinos and antineutrinos below 30GeV. From these ratios we calculate in leading order a mixing parameter of the standard model of Θw=0.215±0.029.

3 data tables
Table 1

Axis error includes +- 0.0/0.0 contribution (?////TOTAL SYSTEMATICS).

Table 2

Axis error includes +- 0.0/0.0 contribution (?////TOTAL SYSTEMATICS).

Table 3

Axis error includes +- 0.0/0.0 contribution (?////TOTAL SYSTEMATICS).