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The polarization in K + n↑ → K 0 p has been measured at 6 and 12 GeV/ c in the interval 0.1 < |t| < 1.0 using a polarized deuteron target. The results are compared to predictions from SU(3), exchange degeneracy (EXD) and line reserval, and from various phenomenological models.

4 data tables

Table 1

NARROW BINS.

Table 2

WIDE BINS.

Table 3

No description provided.

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A Study of Inclusive $\Lambda$, $\Sigma^0$ and $\Sigma(1385)$ Production in $K^- p$ Interactions at 8.25-{GeV}/$c$

The Birmingham-CERN-Glasgow-Michigan State-Paris collaboration Baubillier, M ; Bloodworth, I.J ; Bossen, G.J ; et al.

Nucl.Phys.B 148 (1979) 18-40, 1979.

Inspire Record 132295 DOI 10.17182/hepdata.8128

Inclusive Λ production has been studied in K − p interactions at 8.25 GeV/ c using about 69 000 events; the total cross section is found to be 3.35 ± 0.20 mb. A comparison has been made with Σ 0 and Σ(1385) inclusive production. Their influence on the inclusive Λ production is discussed. The inclusive Λ cross section and polarization is interpreted in terms of the triple-Regge model. In the target fragmentation region an effective Regge trajectory is determined which lies closer to the K than to the K ∗ . In the beam fragmentation region the cross-section data indicate an effective Regge trajectory which corresponds to the nucleon, while the polarization data require additional Regge exchanges to be present.

8 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Measurement of Recoil Proton Polarization in the Process of $\pi^-$ Photoproduction From Neutrons in the Energy Range Between 700-{MeV} and 1200-{MeV}

Takeda, H. ; Arai, I. ; Fujii, T. ; et al.

Nucl.Phys.B 168 (1980) 17-31, 1980.

Inspire Record 131380 DOI 10.17182/hepdata.34512

The recoil proton polarization for γ n → π − p was measured around the third resonance region. Both momentum vectors of the proton and the pion were determined by the magnetic spectrometers. The proton polarization was measured by means of proton-carbon scattering in the polarization analyzer located behind the proton spectrometer. Below 900 MeV incident photon energy, our data are consistent with the other existing experimental data ( θ π ∗ = 90° ) and the predictions of partial-wave analyses. Above 1000 MeV, however, a large discrepancy was observed between our data and the predictions of the partial-wave analyses. The discrepancy stands out as the pion c.m. angle increases. A new partial-wave analysis was made for γ n → π − p including our polarization data, and the accuracy of the experimentally determined electromagnetic coupling constant of the third resonances were greatly improved. In particular, a finite amount of the helicity 3 2 amplitude for the γ n → F 15 (1688) resonance was obtained against the predictions of the quark models, by Copley, Karl and Obryk and by Feynman, Kislinger and Ravendal but in agreement with the relativistic quark models of Sugimoto and Toya, and Kubota and Ohta.

1 data table

Table 1

No description provided.

Angular Dependence of Proton Polarization in $\gamma d \to pn$ and Further Investigation of the Dibaryon Resonance

Ikeda, H. ; Arai, I. ; Fujii, H. ; et al.

UTPN-115, 1978.

Inspire Record 131379 DOI 10.17182/hepdata.20801

None

1 data table

Table 1

ERRORS INCLUDE BY QUADRATIC ADDITION THE 5 PCT UNCERTAINTY IN THE CARBON ANALYSING POWER.

Polarization Measurements in $\pi^- p$ Charge Exchange Scattering From 617-{MeV}/$c$ to 2267-{MeV}/$c$

Brown, Robert M. ; Clark, A.G. ; Davies, J.K. ; et al.

Nucl.Phys.B 144 (1978) 287-311, 1978.

Inspire Record 130405 DOI 10.17182/hepdata.8173

Results are presented of polarization parameter measurements for the reaction π − p→ π 0 n at 22 momenta between 617 and 2267 MeV/ c . These results are generally in agreement with those of previous measurements and in qualitative agreement with predictions of phase-shift analyses. Together with the recently published differential cross-section measurements, they provide a comprehensive set of data for this reaction in the resonance region.

22 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Exclusive Vector Meson Production in Muon - Proton Scattering

del Papa, C. ; Dorfan, David E. ; Flatte, Stanley M. ; et al.

Phys.Rev.D 19 (1979) 1303, 1979.

Inspire Record 130570 DOI 10.17182/hepdata.24312

From a muon-proton scattering experiment with a streamer chamber at the Stanford Linear Accelerator we present results in the ranges 0.3<Q2<4.7 GeV2 and 1.7<W<4.7 GeV for the reactions μ+p→μpV where V is a vector meson (ρ0, ω, or φ). It is shown that in ρ production the skewing parameter and the longitudinal-transverse ratio change significantly as Q2 increases above 1 GeV2. The cross section for ρ0 production as a function of Q2 falls below the vector-meson-dominance prediction. The ratio of the cross section for exclusive vector-meson production to the total cross section falls by a factor of 10 between photoproduction and a Q2 of 2 GeV2, yet the ratio of ω to ρ production remains constant at the photoproduction value out to Q2>2 GeV2.

4 data tables

Table 1

THE ABSOLUTE TOTAL CROSS SECTION IS FROM A FIT TO THE MIT-SLAC ELECTRON SCATTERING DATA BY W. ATWOOD AND S. STEIN.

Table 2

No description provided.

Table 3

FOR 0.6 < M(PI+ PI-) < 0.9 GEV, USING THE METHOD OF MOMENTS.

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A Study of the Reactions $K^0_L p \to K^0_S p$, $\Lambda \pi^+$, $\Sigma^0 \pi^+$ and $\Lambda \pi^+ \pi^0$ Near 550-{MeV}/$c$

Engler, A. ; Keyes, G. ; Kraemer, R.W. ; et al.

Phys.Rev.D 18 (1978) 3061, 1978.

Inspire Record 6591 DOI 10.17182/hepdata.24324

We present measurements of the differential and polarization cross sections for the reactions KL0p→Ks0p, Λπ+, Σ0π+, and Λπ+π0 made in a hydrogen bubble chamber exposed to a beam of KL0 with incident momentum 550±35 MeV/c. The quasielastic data imposes additional constraints on the partial-wave analyses of the KN and K¯N systems. Our data show no strong energy-dependent effects in the region of the reported Σ(1580), JP=32− state. The phase of the forward regeneration amplitude was found to be about - 160° independent of KL0 momentum.

8 data tables

Table 1

SYSTEMATIC ERRORS INCLUDED.

Table 2

ROUGH FIT - POSSIBLY OTHER SYSTEMATIC ERRORS.

Table 3

No description provided.

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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

No description provided.

Evidence for Spin Effects in $p p$ Elastic Scattering at 150-{GeV}/$c$

Fidecaro, G. ; Fidecaro, M. ; Nurushev, S. ; et al.

Phys.Lett.B 76 (1978) 369-373, 1978.

Inspire Record 130230 DOI 10.17182/hepdata.27444

Proton elastic scattering off a polarized proton target has been measured at 150 GeV/ c , in the |; t |-range 0.2–3.0 GeV 2 . The results on polarization and differential cross section are presented.

2 data tables

Table 1

No description provided.

Table 2

No description provided.

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Measurement of Differential Cross-Sections and Polarization Parameters for the $\pi^- p \to \pi^0 n$ Charge Exchange Scattering from 2.0 GeV/c to 4.25 GeV/c (talk, Abstract only)

POLARIZATION MEASUREMENTS IN K+ N CHARGE EXCHANGE AT 6-GeV/c AND 12-GeV/c

A Study of Inclusive $\Lambda$, $\Sigma^0$ and $\Sigma(1385)$ Production in $K^- p$ Interactions at 8.25-{GeV}/$c$

Measurement of Recoil Proton Polarization in the Process of $\pi^-$ Photoproduction From Neutrons in the Energy Range Between 700-{MeV} and 1200-{MeV}

Angular Dependence of Proton Polarization in $\gamma d \to pn$ and Further Investigation of the Dibaryon Resonance

Polarization Measurements in $\pi^- p$ Charge Exchange Scattering From 617-{MeV}/$c$ to 2267-{MeV}/$c$

Exclusive Vector Meson Production in Muon - Proton Scattering

A Study of the Reactions $K^0_L p \to K^0_S p$, $\Lambda \pi^+$, $\Sigma^0 \pi^+$ and $\Lambda \pi^+ \pi^0$ Near 550-{MeV}/$c$

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}

Evidence for Spin Effects in $p p$ Elastic Scattering at 150-{GeV}/$c$