POL
[1.676]
Max results
Sort by Reverse order

Showing 10 of 63 results

$\Lambda^{0}$-polarization from the reaction $\gamma+p = \Lambda^{0}+K^{+}$ in the energy range (950÷1050)MeV

Grilli, M. ; Mezzetti, L. ; Nigro, M. ; et al.
Nuovo Cim. 38 (1965) 1467-1488, 1965.
Inspire Record 1185245 DOI 10.17182/hepdata.37616

We report some measurements of the Λ polarization in the reaction Υ+P=K+Λ+0, for 950<Eγ<1050 MeV. In Sects. 1 and 2 the experimental apparatus and the detection techniques used are described. In Sect.3 we discuss our results and those of other groups and compare them with the theoretical predictions.

1 data table
Table 1

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


A Study of K- n Interactions in the Center-Of-Mass Energy Range from 1.60-GeV to 1.75-GeV

Hepp, V. ; Braun, O. ; Grimm, H.J. ; et al.
Nucl.Phys.B 115 (1976) 82-113, 1976.
Inspire Record 113914 DOI 10.17182/hepdata.8493

We present results of a K − d experiment performed with the 81 cm Saclay deuterium bubble chamber which was exposed to a K − beam at 4 momenta between 680 and 840 MeV/ c at the CERN PS. Cross sections were measured for inelastic two- and three-body K − n reactions on the basis of 5200 events/mb. Resonance production in the three-body reactions is discussed. In addition, differential cross sections and polarisations are presented for inelastic two-body reactions.

59 data tables
Table 1

CROSS SECTIONS FOR TWO-BODY REACTIONS.

Table 2

CROSS SECTIONS FOR THREE-BODY REACTIONS.

Table 3

CROSS SECTIONS FOR K- P REACTIONS.

More…

A Study of the Reactions anti-K0 p ---> Lambda pi+ and anti-K0 p ---> Sigma0 pi+ from 1-GeV/c to 12-GeV/c

Yamartino, R. ; Brandenburg, G.W. ; Johnson, William B. ; et al.
Phys.Rev.D 10 (1974) 9, 1974.
Inspire Record 91647 DOI 10.17182/hepdata.24927

Cross sections, differential cross sections, and hyperon polarization results are presented for the reactions K¯0p→Λπ+ and K¯0p→Σ0π+ in the momentum interval 1 to 12 GeV/c. Emphasis is placed on the comparison of Λ and Σ channels, and on the momentum dependences of the data. In particular, the Λ polarization data are consistent with being independent of energy above 2 GeV/c; and the slopes of the forward cross sections are found to increase toward the slope values for the line-reversed reactions πp→K(Λ,Σ) as energy increases.

27 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

RESONANCE REGION CROSS SECTIONS.

More…

Angular Dependence of the Polarization of the Recoil Proton from the Reaction gamma p --> pi0 p in the Region of the Second Resonance

Blum, P. ; Brinckmann, P. ; Brockmann, R. ; et al.
Z.Phys.A 277 (1976) 311, 1976.
Inspire Record 108242 DOI 10.17182/hepdata.16619

The polarization of the recoil proton from the reactionγp→π0p has been measured for photon energies between 600 and 1,200 MeV and pion c.m. angles between 90° and 150°.

1 data table
Table 1

No description provided.


Angular Dependence of the Polarization of the Recoil Proton from the Reaction gamma p --> pi0 p in the Region of the Third Resonance

Blum, P. ; Brockmann, R. ; Mohr, W. ;
Z.Phys.A 278 (1976) 275, 1976.
Inspire Record 108304 DOI 10.17182/hepdata.16615

The polarization of the recoil proton from the reactionγp→π0p has been measured for photon energies between 900–1,350 MeV and pion c.m. angles between 70° and 150°. There are significant deviations from recent analysis.

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.


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

No description provided.

Table 3

No description provided.

More…

Asymmetry of the cross section of the reaction $\gamma$P $\rightarrow$ P$\pi^{0}$ in the energy interval 0.9-1.65 GeV at $\theta _{\pi}^{0 cms}$ = 110°

Abramyan, L.O. ; Avakyan, R.O. ; Akopov, N.Z. ; et al.
JETP Lett. 23 (1976) 375-378, 1976.
Inspire Record 1393126 DOI 10.17182/hepdata.39803

None

2 data tables
Table 1

THE ERRORS INCLUDE THE 10 PCT ERROR IN THE EFFECTIVE PHOTON POLARIZATION.

Table 2

No description provided.


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

No description provided.

Table 3

No description provided.

More…

Differential cross section and recoil polarization measurements for the gamma p to K+ Lambda reaction using CLAS at Jefferson Lab

The CLAS collaboration McCracken, M.E. ; Bellis, M. ; Meyer, C.A. ; et al.
Phys.Rev.C 81 (2010) 025201, 2010.
Inspire Record 840934 DOI 10.17182/hepdata.54967

We present measurements of the differential cross section and Lambda recoil polarization for the gamma p to K+ Lambda reaction made using the CLAS detector at Jefferson Lab. These measurements cover the center-of-mass energy range from 1.62 to 2.84 GeV and a wide range of center-of-mass K+ production angles. Independent analyses were performed using the K+ p pi- and K+ p (missing pi -) final-state topologies/ results from these analyses were found to exhibit good agreement. These differential cross section measurements show excellent agreement with previous CLAS and LEPS results and offer increased precision and a 300 MeV increase in energy coverage. The recoil polarization data agree well with previous results and offer a large increase in precision and a 500 MeV extension in energy range. The increased center-of-mass energy range that these data represent will allow for independent study of non-resonant K+ Lambda photoproduction mechanisms at all production angles.

241 data tables
Table 1

Differential cross section as a function of COS(THETA(K)) for the centre-of-mass range 1.62-1.63 GeV.

Table 2

Differential cross section as a function of COS(THETA(K)) for the centre-of-mass range 1.63-1.64 GeV.

Table 3

Differential cross section as a function of COS(THETA(K)) for the centre-of-mass range 1.64-1.65 GeV.

More…

Differential cross-section and recoil proton polarization of eta-meson photoproduction at 890 mev

Hongoh, M. ; Kikuchi, K. ; Kobayakawa, H. ; et al.
Lett.Nuovo Cim. 2S2 (1971) 317-320, 1971.
Inspire Record 70913 DOI 10.17182/hepdata.37410

None

2 data tables
Table 1

No description provided.

Table 2

No description provided.