Heath, G.P.
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Polarization of $\Lambda$ Hyperons Produced in the $\pi^-$ Propane Interaction at $P (\pi^-) = 40$-{GeV}/

Dzhmukhadze, S.V. ; Kladnitskaya, E.N. ; Popova, V.M. ; et al.
Sov.J.Nucl.Phys. 33 (1981) 81-83, 1981.
Inspire Record 154889 DOI 10.17182/hepdata.17860

None

1 data table
Table 1

Axis error includes +- 0.0/0.0 contribution (?////).


K- p Reactions from 0.96-GeV/c to 1.355-GeV/c Involving Two-Body Final States

The Rutherford-London collaboration Conforto, B. ; Gopal, G.P. ; Kalmus, G.E. ; et al.
Nucl.Phys.B 105 (1976) 189-221, 1976.
Inspire Record 2769 DOI 10.17182/hepdata.8717

Data are presented from a high statistics bubble chamber experiment to study K − p interactions in the c.m. energy range 1775 to 1957 MeV. For the reactions K − p → K − p, K − p → K 0 n , K − p → Λπ 0 and K − p → Σ ± π ∓ channel cross sections, differential cross sections and, where appropriate, polarisation distributions have been obtained. The channel cross sections for K − p → Σ 0 π 0 are presented. In general the results are in agreement with those previously published although a significant discrepancy has been found in the Σ ± π ∓ cross sections at the lower energies. New measurements of the Σ ± lifetimes have also been obtained ( τ Σ − = 1.49 ± 0.03 × 10 −10 sec, τ Σ + = 0.807 ± 0.013 × 10 −10 sec).

35 data tables
Table 1

No description provided.

Table 2

THE FORWARD DIFFERENTIAL CROSS SECTION IS THE EXTRAPOLATED VALUE OF THE LEGENDRE POLYNOMIAL FIT.

Table 3

No description provided.

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Photoproduction of pi0 on protons by polarized gamma rays

Barbiellini, G. ; Bologna, G. ; Capon, G. ; et al.
Phys.Rev. 184 (1969) 1402-1413, 1969.
Inspire Record 62287 DOI 10.17182/hepdata.26495

The asymmetry Σ(k,θ*)=(dσ⊥−dσ∥)(dσ⊥+σ∥) of the polarized cross sections for π0 photoproduction has been measured at θ*=90° for energies k of the incident photon in the range 230-380 MeV. The experiment has been performed with the polarized γ-ray beam of the Frascati 1-GeV electron synchrotron. The experimental results are compared with the present theoretical predictions in order to investigate the importance of ω exchange in the t channel and the contribution of the E1+(3) multipole at the 33 resonance. The theory with ω exchange is in the best agreement with the experiment.

1 data table
Table 1

No description provided.


Proton Compton effect by polarized photons at 90 degrees in the c.m. system in the first resonance region

Barbiellini, G. ; Capon, G. ; De Zorzi, G. ; et al.
Phys.Rev. 174 (1968) 1665-1673, 1968.
Inspire Record 55887 DOI 10.17182/hepdata.26496

For the reaction γ+p→γ′+p′ (proton Compton effect), we have measured the ratio dσIIdσ⊥ between the cross sections for linearly polarized photons, using the coherent bremsstrahlung beam of the Frascati electron synchrotron. At 90° in the c.m. system and in the photon energy region 300≤K≤335 MeV, we find dσIIdσ⊥=2.1−0.4+0.5. In the absence of theoretical predictions based on the dispersive theory in this energy region, this result is compared with the values obtained using an isobaric model, taking into account various possible intermediate states.

1 data table
Table 1

Axis error includes +- 0.0/0.0 contribution (?////).