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Angular dependence of the recoil proton polarization from the reaction $\gamma p \to \pi^0 p$ for photon energies between 360-MeV and 1200-MeV

Blum, P. ; Brinckmann, P. ; Brockmann, R. ; et al.
BONN-PI-1-105, 1970.
Inspire Record 1085812 DOI 10.17182/hepdata.70500

None

6 data tables
Table 1

No description provided.

Table 2

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Table 3

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Mesure de la polarisation du proton de recul dans la diffusion élastique pi+- p entre 550 et 1025 MeV

Yonnet, Jacques ;
CNRS-A-O-4171, 1970.
Inspire Record 1187688 DOI 10.17182/hepdata.1304

None

6 data tables
Table 1

No description provided.

Table 2

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Table 3

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Photoproduction of k+ mesons and polarization of lambda0 hyperons in the 1-gev range

Fujii, T. ; Imanishi, A. ; Iwata, S. ; et al.
Phys.Rev.D 2 (1970) 439-448, 1970.
Inspire Record 61523 DOI 10.17182/hepdata.24271

Polarization of Λ hyperons and differential cross sections for the reaction γ+p→K++Λ were measured at the K+-meson center-of-mass angles around 45°, 70°, and 90° for the incident photon energies of 1054, 1100, and 1160 MeV. The K+ mesons were detected with a magnetic spectrometer and a velocity-selection system based on the energy loss and the time of flight. The polarization of Λ was determined by measuring the up-down asymmetry of protons in the decay Λ→pπ− with respect to the production plane. The results show a dominant sinθK* dependence of the polarization at the region of the third resonance and are consistent with a contribution of the P11 resonance with a mass of about 1700 MeV.

3 data tables
Table 1

No description provided.

Table 2

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Table 3

No description provided.


Lambda Polarization at 90-degrees in K+Lambda Photoproduction

Groom, D.E. ; Marshall, J.H. ;
Phys.Rev. 159 (1967) 1213-1219, 1967.
Inspire Record 52237 DOI 10.17182/hepdata.26579

The Λ polarization and the differential cross section for the reaction γ+p→K++Λ have been measured, using the Caltech synchrotron, at 90° in the c.m. system and at laboratory photon energies of 1100, 1200, and 1300 MeV. Protons from the asymmetric decay of the Λ were detected by counters placed above and below the production plane. Kaons were identified by their behavior in a thick range telescope. Polarization results were PΛ=+0.34±0.09 at 1100 MeV, +0.30±0.07 at 1200 MeV, and +0.08±0.07 at 1300 MeV, where PΛ was measured in the p^γ×p^Λ direction. The differential cross section was constant with energy at 0.14±0.01 μb/sr. Although the apparent bump in the polarization at 90° at a total energy of ≈1700 MeV adds support to models which invoke a resonance here, no really new conclusions can be reached.

2 data tables
Table 1

No description provided.

Table 2

No description provided.


RECOIL PROTON POLARIZATION IN pi0 PHOTOPRODUCTION

Bloom, Elliott D. ; Heusch, C.A. ; Prescott, C.Y. ; et al.
Phys.Rev.Lett. 19 (1967) 671, 1967.
Inspire Record 51327 DOI 10.17182/hepdata.21757

None

1 data table
Table 1

No description provided.


MEASUREMENT OF THE POLARIZATION PARAMETER IN THE ELASTIC SCATTERING OF NEGATIVE PIONS BY PROTONS FROM 600-MeV/c TO 3300-MeV/c

Hansroul, Michel ;
UCRL-17263, 1967.
Inspire Record 1087626 DOI 10.17182/hepdata.18573

None

11 data tables
Table 1

No description provided.

Table 2

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Table 3

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Polarization of Recoil Protons in pi + /- p Elastic Scattering at 864, 981, and 1301 MeV

Eandi, Richard D. ; Devlin, Thomas J. ; Kenney, Robert W. ; et al.
Phys.Rev. 136 (1964) B1187-B1189, 1964.
Inspire Record 944970 DOI 10.17182/hepdata.535

Angular distributions of recoil-proton polarization in elastic π±p scattering were measured at 864-, 981-, and 1301-MeV incident pion kinetic energy. Polarization measurements were made by observing the azimuthal asymmetry in the subsequent scattering of recoil protons in large carbon-plate spark chambers. The spark chambers proved to be very suitable polarization analyzer detectors. Strong variation of the polarization with backward pion scattering angle was observed.

5 data tables
Table 1

No description provided.

Table 2

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Table 3

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