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The reaction p p → Λ Σ 0 together with its charge conjugate channel (c.c.) has been measured at LEAR. The incident p momentum was 1.695 GeV/ c , corresponding to an excess energy above threshold of 14.8 MeV. Results are given for the production cross section and the differential cross section as well as for the polarization. Comparisons are made with theoretical calculations and with the reaction p p → Λ Λ .

4 data tables

Table 1

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LARGE ANGLE LAMBDA0 PRODUCTION IN EXCLUSIVE REACTIONS BETWEEN 3-GEV/C AND 12-GEV/C

Bachman, L. ; Bogdanski, M. ; Jeannet, E. ; et al.

Nucl.Phys.B 263 (1986) 458-474, 1986.

Inspire Record 228531 DOI 10.17182/hepdata.33695

The analysis of exclusive neutral strange particle production in the reactions π − p → K° Λ + K° Σ ° and p p → Λ Λ + Λ Σ° + c.c. at 3.15, 4.95, 7.9 and 12 GeV/ c yielded the differential cross section distributions up to about 90° c.m.s. scattering angle and the Λ-particle polarization at large transverse momentum. Applying a fit to d σ /d t ∞ s − n resulted in n = 8.6 ± 0.9 for the K° Λ + K° Σ° final state which is compatible with the quark counting rule n = 8 for meson-baryon reactions. The average Λ polarization around t = −1.6 (GeV/ c ) 2 was P Λ = 0.79 ± 0.17 at 3.15 GeV/ c beam energy.

10 data tables

Table 1

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Table 2

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Table 3

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Measurement of the Reactions $\bar{P} P \to \bar{\Lambda} \Lambda$, $\bar{p} p \to \bar{\Lambda} \Sigma^0$ and $\bar{P} P \to \bar{\Lambda}$ (Missing Mass) at 6-{GeV}

The CERN-Munich collaboration Becker, H. ; Blanar, G. ; Blum, W. ; et al.

Nucl.Phys.B 141 (1978) 48-64, 1978.

Inspire Record 130450 DOI 10.17182/hepdata.34946

None

3 data tables

Table 1

OVERALL NORMALIZATION ERROR NOT INCLUDED. -TMIN IS 0.015 (0.023) GEV**2 FOR THE LAMBDA (SIGMA0) REACTION.

Table 2

INCLUDING NORMALIZATION UNCERTAINTY IN ERRORS. USING EMPIRICAL FITS TO D(SIG)/DT FOR -T > 1.0 GEV**2.

Table 3

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Neutral Strange Particle Production in anti-Proton-Proton Reactions at 3.0-GeV/c

Jacobs, S.M. ; Kirsch, L.E. ; Moore, S.C. ; et al.

Phys.Rev.D 17 (1978) 1187, 1978.

Inspire Record 5857 DOI 10.17182/hepdata.24452

The reactions p¯p→V0+neutrals were studied in a multiparticle spectrometer at 3.0 GeV/c incident momentum, with a sensitivity of about 150 events/μb. Differential cross sections and polarization of the Λ¯ for the final states Λ¯(Λ) and Λ¯(Σ0) are reported and compared with theoretical models. Differential cross sections of the K0 in K0[K*(890)] and the Λ in Λ(Λ¯+Σ¯0) are also measured. Upper limits of a few μb MeV are obtained for the formation of narrow resonances decaying into V0+neutrals in the mass interval 2.74-2.80 GeV/c2.

5 data tables

Table 1

FORWARD HEMISPHERE TOTAL CROSS SECTIONS NOT INCLUDING CHARGE CONJUGATE REACTIONS. CORRECTED FOR DECAY BRANCHING RATIOS AND FOR BACKGROUNDS.

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Flavor production in anti-p p reactions at low-energies

Measurement of the Reaction $\bar{p} p \to \bar{\ell}$ambda Sigma0 + $c$.$c$. At 1.695-{GeV}/$c$

LARGE ANGLE LAMBDA0 PRODUCTION IN EXCLUSIVE REACTIONS BETWEEN 3-GEV/C AND 12-GEV/C

Measurement of the Reactions $\bar{P} P \to \bar{\Lambda} \Lambda$, $\bar{p} p \to \bar{\Lambda} \Sigma^0$ and $\bar{P} P \to \bar{\Lambda}$ (Missing Mass) at 6-{GeV}

Neutral Strange Particle Production in anti-Proton-Proton Reactions at 3.0-GeV/c