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Recent results on the polarization parameter in $\pi-p$ and $p-p$ elastic scattering from 6 to 12 GeV/c.

Borghini, M. ; Coignet, G. ; Dick, Louis ; et al.
(1967) 123-124, 1967.
Inspire Record 1371768 DOI 10.17182/hepdata.71256

We present the final results of a measurement of the polarization parameter P 0 in high-energy n~-p and p-p elastic scattering, performed using a target which contained polarized protons. Data were taken at beam momenta of 6.0, 8.0, 10.0 and 12.0 GeV/c for n-, and of 6.0, 10.0 and 12.0 GeV/c for n+ and p, in the interval of invariant four-momentum transfer squared-t from 0.1 to 0.75 (GeV/c)2.

11 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Measurement of the Antilambda polarization in nu/mu charged current interactions in the NOMAD experiment.

The NOMAD collaboration Astier, P. ; Autiero, D. ; Baldisseri, A. ; et al.
Nucl.Phys.B 605 (2001) 3-14, 2001.
Inspire Record 554759 DOI 10.17182/hepdata.48928

We present a measurement of the polarization of Antilambda hyperons produced in nu_mu charged current interactions. The full data sample from the NOMAD experiment has been analyzed using the same V0 identification procedure and analysis method reported in a previous paper for the case of Lambda hyperons. The Antilambda polarization has been measured for the first time in a neutrino experiment. The polarization vector is found to be compatible with zero.

2 data tables
Table 1

Lambdabar polarization in regions of Feynman X (XL).

Table 2

Lambdabar polarization in regions of the Bjorken scaling variable X.


Study of the Reaction $p p$ (Polarized) $\to p \pi^+ n$ With Polarized Beam From 3-{GeV}/$c$ to 12-{GeV}/$c$

Wicklund, A.B. ; Arenton, M.W. ; Ayres, D.S. ; et al.
Phys.Rev.D 34 (1986) 19, 1986.
Inspire Record 17565 DOI 10.17182/hepdata.3936

We present density-matrix elements and single-spin correlations for the reaction p↑p→pπ+n at 3, 4, 6, and 11.75 GeV/c, using both longitudinal and transverse beam polarizations. For small momentum transfers, the spin correlations are mainly due to off-shell π+p elastic scattering, while for larger t there are large polarization effects associated with the production dynamics for p↑p→Δ++n. Comparison of longitudinal and transverse polarization correlations suggests that the Δ++-production spin effects are due mainly to unnatural-parity exchanges. We present a model-dependent amplitude analysis, and extract the energy dependence of the natural- and unnatural-parity-exchange contributions.

36 data tables
Table 1

Unpolarized cross sections.

Table 2

Unpolarized cross sections.

Table 3

Unpolarized cross sections.

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CROSS-SECTION ASYMMETRY OF THE gamma n ---> pi- p REACTION BY POLARIZED PHOTONS IN THE THIRD AND FOURTH RESONANCE REGIONS

Adamian, F.V. ; Akopian, G.G. ; Galumian, P.I. ; et al.
EFI-722-37-84-YEREVAN, 1984.
Inspire Record 206944 DOI 10.17182/hepdata.18433

None

5 data tables
Table 1

No description provided.

Table 2

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Table 3

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Measurements of Spin Parameters in $p p$ Elastic Scattering at 6-{GeV}/$c$

Linn, S.L. ; Perlmutter, A. ; Crosbie, E.A. ; et al.
Phys.Rev.D 26 (1982) 550, 1982.
Inspire Record 11848 DOI 10.17182/hepdata.23900

We measured the differential cross section for proton-proton elastic scattering at 6 GeV/c, with both initial spins oriented normal to the scattering plane. The analyzing power A shows significant structure with a large broad peak reaching about 24% near P⊥2=1.6 (GeV/c)2. The spin-spin correlation parameter Ann exhibits more dramatic structure, with a small but very sharp peak rising rapidly to about 13% at 90°c.m.. This sharp peak may be caused by particle-identity effects.

1 data table
Table 1

No description provided.


ANALYZING POWER IN LARGE ANGLE PROTON NEUTRON ELASTIC SCATTERING

Makdisi, Y. ; Marshak, M.L. ; Mossberg, B. ; et al.
Phys.Rev.Lett. 45 (1980) 1529-1533, 1980.
Inspire Record 159455 DOI 10.17182/hepdata.20701

The large-angle analyzing power A in proton-neutron elastic scattering at 2, 3, and 6 GeV/c with use of the polarized proton beam at the Argonne zero-gradient synchrotron and a liquid deuterium target have been measured. The measurements, the first at high energy, show that A is large (20-40%) and negative over much of the angular range and shows no decrease with incident energy, unlike the earlier data at smaller angles.

6 data tables
Table 1

No description provided.

Table 2

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Table 3

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A STUDY OF THE REACTIONS ANTI-K0 P ---> LAMBDA PI+ (BACKWARD) AND ANTI-K0 P ---> SIGMA0 PI+ (BACKWARD) FOR KAON MOMENTA BETWEEN 1 AND 8-GEV/C

Bamberger, A. ; Bruning, H. ; Brundiers, H.J. ; et al.
Nucl.Phys.B 174 (1980) 277-299, 1980.
Inspire Record 159454 DOI 10.17182/hepdata.34465

We present results for the reactions K 0 p →Λπ + and K 0 p →∑ 0 π + , for |u'| <0. 05 ( GeV /c) 2 and kaon momenta between 1 and 8 GeV/ c . The experiment was performed ina neutral beam at the PS with a two arm spark chamber spectrometer. The cross sections show strong dependence on beam energy and momentum transfer u ′. Λ polarization is compatible with zero. We compare energy dependence of the backward cross sections with the baryon exchange model from π N scattering.

8 data tables
Table 1

No description provided.

Table 2

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Table 3

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Spin Spin Forces in 6-{GeV}/$c$ Neutron - Proton Elastic Scattering

Crabb, D.G. ; Hansen, P.H. ; Krisch, A.D. ; et al.
Phys.Rev.Lett. 43 (1979) 983, 1979.
Inspire Record 141922 DOI 10.17182/hepdata.20753

Measurement was made of dσdt for n↑+p↑→n+p at P⊥2=0.8 and 1.0 (GeV/c)2 at 6 GeV/c. The 6-GeV/c 53%-polarized neutrons from the 12-GeV/c polarized deuteron beam at the Argonne zero-gradient synchroton were scattered from our 75%-polarized proton target. Both spins were oriented perpendicular to the scattering plane. We found large unexpected spin-spin effects in n−p elastic scattering which are quite different from the p−p spin-spin effects.

1 data table
Table 1

No description provided.


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

Fujisaki, M. ; Babou, M. ; Bystricky, J. ; et al.
Phys.Lett.B 80 (1979) 314, 1979.
Inspire Record 132911 DOI 10.17182/hepdata.27365

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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Inclusive Production of $K^0_S$, $\Lambda$ and $\bar{\Lambda}$ in $\bar{p} p$ Interactions at 3.6-{GeV}/$c$

Banerjee, S. ; Ganguli, S.N. ; Malhotra, P.K. ; et al.
Nucl.Phys.B 150 (1979) 119-140, 1979.
Inspire Record 131498 DOI 10.17182/hepdata.34804

We present a study of the inclusive reactions p p → K S 0 X, ΛX and Λ X at 3.6 GeV/ c based on 35.4 events/μb. The cross sections are presented in terms of the Feynman variable, rapidity and the transverse momentum. The absolute value of the Λ polarization is found to increase with increasing p T of Λ. A comparison of the inclusive productions of K S 0 in p p and e + e − is presented.

3 data tables
Table 1

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Table 2

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Table 3

OTHER DATA AT PLAB=5.7 AND 12. GEV/C. ALSO INCLUDED.