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Differential cross-sections for elastic scattering of positive kaons on protons in the momentum range 0.9 to 1.9 gev/c

Charles, B.J. ; Cowan, I.M. ; Edwards, T.R.M. ; et al.

Phys.Lett.B 40 (1972) 289-292, 1972.

Inspire Record 75720 DOI 10.17182/hepdata.28271

None

1 data table

Table 1

No description provided.

MEASUREMENT OF THE ASYMMETRY PARAMETER IN THE PHOTOPRODUCTION OF phi MESONS

Halpern, H.J. ; Prepost, R. ; Tompkins, D.H. ; et al.

Phys.Rev.Lett. 29 (1972) 1425-1427, 1972.

Inspire Record 73540 DOI 10.17182/hepdata.21442

We have measured the asymmetry parameter Σ=(σ∥−σ⊥)(σ∥+σ⊥) for the photoproduction of ϕ mesons with photons polarized parallel and perpendicular to the plane of decay for the reaction γp→ϕp→K+K−p. We find Σ=0.985±0.12 at a photon energy of 8.14 GeV and |t| of 0.2 (GeVc)2, consistent with pure diffraction production, or pure naturalparity Regge exchange.

1 data table

Table 1

No description provided.

LARGE ANGLE HIGH-ENERGY PHOTOPRODUCTION OF SINGLE pi+ MESONS FROM LIQUID HYDROGEN

Anderson, Robert L. ; Gottschalk, B. ; Gustavson, D. ; et al.

Phys.Rev.Lett. 30 (1973) 627, 1973.

Inspire Record 80994 DOI 10.17182/hepdata.3371

We have measured angular distributions for single photoproduced π+ mesons at 4.0-, 5.0-, and 7.5-GeV incident photon energies and at lab angles from 11° to 66° with the Stanford Linear Accelerator Center 8-GeV spectrometer. Combined with previous Stanford Linear Accelerator Center results, this gives complete angular coverages for this range of energies. The data show the usual "t" and "u" diffraction peaks and a "central plateau" region dropping as S−7.3.

1 data table

Table 1

No description provided.

A formation study of n anti-n interactions between 1.09 and 3.45 gev/c. ii. strange particles

Oh, B.Y. ; Eastman, P.S. ; Ming, Ma.Z. ; et al.

Nucl.Phys.B 51 (1973) 57-76, 1973.

Inspire Record 84294 DOI 10.17182/hepdata.8011

A systematic study of p p and p d reactions producing strange particles between 1.09 and 3.45 GeV/ c has been completed. Reaction and resonance cross-section data are presented at 11 p p and 13 p d momentum settings. Evidence for a broad shoulder in the K K 3π final state near 1.8 GeV/ c is presented and contrasted to previously published work on a portion of the final data sample. No evidence for a p n → K 0 K − ω effect near 1.3 GeV/ c is found, ruling out an association of K K ω effects with the nearby isospin one enhancement in the total cross section. Finally, we find no evidence for a p p → K K ω enhancement near 1.8 GeV/ c .

6 data tables

Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.

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Analysis of two-prong events in proton proton interactions at 6.6 gev/c

Colton, E. ; Ming, Ma.Z. ; Smith, G.A. ; et al.

Phys.Rev.D 7 (1972) 3267-3295, 1972.

Inspire Record 82060 DOI 10.17182/hepdata.22134

A detailed analysis is presented of the reactions pp→pp,pp→ppπ0 and pp→pπ+n. The production cross sections are found to be 11.47 ± 0.33 mb, 2.54 ± 0.16 mb, and 5.73 ± 0.35 mb, respectively. The t dependence of elastic scattering can be described by the form e7.9t over the range 0.05<−t<0.50 GeV2. The single-particle distributions for the single-pion production processes are presented. Further detailed analyses are presented which demonstrate that pion-exchange phenomenology, both elementary and Reggeized, can account for the gross features of the peripheral pp→pπ+n data for M(pπ+)<2.4 GeV. Isospin-12 isobars are produced by some other processes in the channel pp→pN*+, especially when the invariant mass of the pion with the unrelated proton is large. We discuss the properties of these isobars.

6 data tables

Table 1

No description provided.

Table 2

FITTED OVER 0.05 < -T < 0.5 GEV**2.

Table 3

No description provided.

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A formation study of n anti-n interactions between 1.09 and 3.45 gev/c. (iv)-features of annihilations into k anti-k and pi mesons

Oh, B.Y. ; Eastman, P.S. ; Ming, Ma.Z. ; et al.

Nucl.Phys.B 63 (1973) 1-27, 1973.

Inspire Record 83880 DOI 10.17182/hepdata.32487

Final state resonance production and single particle momentum spectra are presented for p p annihilations into K K and π's between 1.09 and 3.45 GeV/ c . Resonance production generally agrees with the Lamb statistical model. Momentum spectra of K's and π's are independent of incident energy, while the mean multiplicity increases in proportion to the c.m. energy, supporting the annihilation model of Jacob and Nussinov.

2 data tables

Table 1

THESE CROSS SECTIONS WERE GIVEN IN DETAIL IN B. Y. OH ET AL., NP B51, 57 (1973).

Table 2

No description provided.

A formation study of n anti-n interactions between 1.51 and 2.90 gev/c. iii. resonance production

Ming, Ma.Z. ; Eastman, P.S. ; Oh, B.Y. ; et al.

Nucl.Phys.B 51 (1973) 77-94, 1973.

Inspire Record 84298 DOI 10.17182/hepdata.32684

A systematic study of p p and p d resonance production cross sections in non-strange annihilation channels between 1.51 and 2.90 GeV/ c has been completed. The data have been analysed in relation to the three known structures at c.m. N N energies of 2190, 2350 and 2375 MeV. Several resonance intermediate states may have broad maxima near the isopin one 2350 MeV structure. However, more data below 1.6 GeV/ c are required to better describe the background in this region before firm conclusions may be drawn.

2 data tables

Table 1

No description provided.

Table 2

No description provided.

A formation study of n anti-n interactions between 1.51 and 2.90 gev/c. i. topological and reaction cross-sections

Eastman, P.S. ; Ming, Ma.Z. ; Oh, B.Y. ; et al.

Nucl.Phys.B 51 (1973) 29-56, 1973.

Inspire Record 84299 DOI 10.17182/hepdata.32706

A systematic study of p p and p d topological and reaction cross sections between 1.51 and 2.90 GeV/ c has been completed. The data have been analysed in relation to the three known structures at c.m. N N energies of 2190, 2350 and 2375 MeV. The data suggest that four- and six-pion annihilations of antiprotons on neutrons may be the source of the 2350 MeV effect. Further data below 1.60 GeV/ c are required to verify this tentative conclusion.

3 data tables

Table 1

No description provided.

Table 2

INCLUDING 3 PCT SYSTEMATIC ERROR.

Table 3

No description provided.