HEPData Search

Single-spin asymmetries for hadrons have been measured in collisions of transversely-polarized 40 GeV/c proton beam with an unpolarized liquid hydrogen target. The asymmetries were measured for pi+-, K+-, protons and antiprotons, produced in the central region (0.02 < Xf < 0.10 and 0.7 < Pt < 3.4 GeV/c). Asymmetries for pi+-, K+- and antiprotons show within measurement errors the linear dependence on Xt and change a sign near 0.37. For protons negative asymmetry, independent of Xt has been found. The results are compared with those of other experiments and SU(6) model predictions.

3 data tables

Table 1

Table 2

Table 3

Measurement of the total cross-section difference Delta(sigma-L) in n p transmission at 1.19-GeV, 2.49-GeV and 3.65-GeV

Adiasevich, B.P. ; Antonenko, V.G. ; Averichev, S.A. ; et al.

Z.Phys.C 71 (1996) 65-74, 1996.

Inspire Record 416847 DOI 10.17182/hepdata.12108

Results of the total cross section differenceΔσL in anp transmission experiment at 1.19, 2.49 and 3.65 GeV incident neutron beam kinetic energies are presented. Measurements were performed at the Synchrophasotron of the Laboratory of High Energies of the Joint Institute for Nuclear Research in Dubna. Results were obtained with a polarized beam of free quasi-monochromatic neutrons passing through the new Dubna frozen spin proton target. The beam and target polarizations were oriented longitudinally. The present results were obtained at the highest energies of free polarized neutrons that can be reached at present. They extend the energy range of existing results from PSI, LAMPF and Saclay measured between 0.066 and 1.10 GeV. The new results are compared withΔσL(pn) data determined as a difference betweenΔσL(pd) andΔσL(pp) ANL-ZGS measurements. The values ofΔσL for the isospin stateI=0 were deduced using knownpp data.

2 data tables

Table 1

Errors contain statistical and systematic errors added in quadrature. Axis error includes +- 0.05/0.05 contribution (An additional error due to the extrapolation towards zero solid angle).

Table 2

No description provided.

High p(T) inclusive hadron production in pi- p collisions at 40-GeV and angles 49-degrees <= theta(cm) <= 93-degrees

Turchanovich, L.K. ; Abramov, V.V. ; Baldin, B.Yu. ; et al.

Phys.Atom.Nucl. 56 (1993) 1367-1377, 1993.

Inspire Record 356443 DOI 10.17182/hepdata.40547

None

6 data tables

Table 1

Only statistical errors are given.

Table 2

Only statistical errors are given.

Table 3

Only statistical errors are given.

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Diffractional excitation of Be nucleus by 40-GeV/c pions accompanied by proton emissions into backward hemisphere

Antipov, Yu.M. ; Batarin, V.A. ; Bezzubov, V.A. ; et al.

Phys.Atom.Nucl. 56 (1993) 1241-1250, 1993.

Inspire Record 355325 DOI 10.17182/hepdata.17230

None

2 data tables

Table 1

CHARGED PARTICLES HAVE LARGE ESCAPE ANGLE. DIFRACTIVE SCATTERED PION.

Table 2

CHARGED PARTICLES HAVE LARGE ESCAPE ANGLE. DIFRACTIVE SCATTERED PION.

Cross-sections of backward proton production in 40-GeV/c pi- (K-, anti-p) A interactions

Antipov, Yu.M. ; Batarin, V.A. ; Bezzubov, V.A. ; et al.

Nucl.Phys.A 536 (1992) 637-647, 1992.

Inspire Record 337176 DOI 10.17182/hepdata.36704

The inclusive cross sections of backward proton production in π − ( K − , p ) -Be, Al, Cu, Pb interactions at 40 GeV/ c are presented. Protons have been detected in the angular range 150°–165° and kinetic energy region 0.1–0.3 GeV. The invariant cross-section ratios for various beam particles are independent of the values of kinetic energy and of the nuclear target type: 〈ƒ K − /ƒ π − 〉= 0.87 ± 0.03 stat ± 0.03 syst , 〈ƒ p /ƒ π − 〉 = 1.82 ± 0.10 stat ± 0.05 syst . The A -dependence of the cross-section slope parameter for A ⩾27 is less than ∼2%.

22 data tables

Table 1

CYCLE N1.

Table 2

CYCLE N1.

Table 3

CYCLE N1.