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Polarization measurement of antiproton scattered elastically from proton at 220 mev

Ohsugi, T. ; Fujisaki, M. ; Kaneko, S. ; et al.

Nuovo Cim.A 17 (1973) 456-463, 1973.

Inspire Record 87646 DOI 10.17182/hepdata.37771

The polarization of scattered antiproton in\(\bar pp\) elastic scattering has been measured at the kinetic energy of 220MeV by means of double scattering in a bubble chamber. The polarizations obtained are 0.28±0.11, 0.46±0.12, 0.51±0.19 and 0.38±0.31 at the scattering angles 28°, 42°, 56° and 73° in the c.m. system, respectively. These results do not seem to be in good agreement with a prediction given by Bryan and Phillips. We have also compared these data with a modified diffraction model.

1 data table

Table 1

POLARIZATION ASSUMED POSITIVE.

The reactions k- p ---> lambda(sigma0) vector meson at 3.95 gev/c

Rouge, A. ; Videau, H. ; Videau, I. ; et al.

Nucl.Phys.B 44 (1972) 365-389, 1972.

Inspire Record 75019 DOI 10.17182/hepdata.32867

We present complete results concerning the five reactions K − p → Λω , K − p → Λφ , K − p → Σ 0 ϱ and K − p → Σ 0 φ . The experimental data are well described by exchange mechanisms and the agreement with the SU(3) symmetry predictions is excellent.

16 data tables

Table 1

FORWARD AND BACKWARD CROSS SECTIONS ARE FOR COS(THETA) > AND < 0. SLOPE DETERMINED FOR -TP = 0.2 TO 1.0.

Table 2

AUTHORS ALSO GIVE CORRELATIONS OF LAMBDA POLARIZATION WITH THE MESON POLARIZATION.

Table 3

No description provided.

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0- 1/2+ final states in k- p interactions at 3.95 gev/c

Moscoso, L. ; Hubbard, J.R. ; Leveque, A. ; et al.

Nucl.Phys.B 36 (1972) 332-344, 1972.

Inspire Record 75362 DOI 10.17182/hepdata.33015

Final states π − Σ + , π + Σ − , π o Λ and ηΛ were studied for K − p reactions at 3.95 GeV/ c . Cross sections, angular distributions and polarizations are presented. Data for π − Σ + and π o Λ production are compared to the line-reversed πp reactions at the same beam momentum. Baryon-exchange peaks are presented for the Σ + π − , Σ − π + and Λπ o final states.

10 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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HIGH-ENERGY pi0 PHOTOPRODUCTION FROM HYDROGEN WITH UNPOLARIZED AND LINEARLY POLARIZED PHOTONS

Anderson, Robert L. ; Gustavson, D. ; Johnson, J.R. ; et al.

Phys.Rev.D 4 (1971) 1937, 1971.

Inspire Record 67154 DOI 10.17182/hepdata.25066

We have completed measurements of the differential cross section for γ+p→π0+p, and the asymmetry with polarized photons, for incident photon energies from 4 to 18 GeV and momentum transfers between t=−0.1 and −1.4 (GeV/c)2. The experiment was performed at the Stanford Linear Accelerator Center, using the SLAC 1.6-GeV/c spectrometer to analyze protons recoiling from a hydrogen target. For the cross-section measurements a normal collimated bremsstrahlung beam was used. For the asymmetry measurements the polarized photons were produced by coherent bremsstrahlung from a diamond crystal, and a coincidence was required between the recoil proton and one of the π0 decay photons in a shower counter.

7 data tables

Table 1

No description provided.

Table 2

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Table 3

No description provided.