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Measurement of $\psi$ (3.1) Meson Production by Pions and Protons

Blanar, G.J. ; Boyer, C.F. ; Faissler, W.L. ; et al.

Phys.Rev.Lett. 35 (1975) 346, 1975.

Inspire Record 98776 DOI 10.17182/hepdata.21147

The production of ψ(3.1) mesons is reported for the reactions π−+Fe→μ++μ−+anything, at 200 GeV, and p+Fe→μ++μ−+anything, at 240 GeV. For ψ production, distributions in x≡PLPbeam and P⊥ are given. For x>~0.5, the ratio of the ψ production cross sections in iron for pions to that for protons is found to be 7.4±2.0.

4 data tables

Table 1

No description provided.

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Table 3

CDB=THESE DATA TO BE MULTIPLIED BY FACTOR 10.0.

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Pions with Maximum Momenta in Proton-Nuclei Interaction at 8.8-GeV/c

Bayukov, Yu.D. ; Efremenko, V.I. ; Fedorov, V.B. ; et al.

ITEP-49-1977, 1977.

Inspire Record 121162 DOI 10.17182/hepdata.40390

None

4 data tables

Table 1

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Table 3

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Diffraction Dissociation of High Energy Protons on Hydrogen and Deuterium Targets

Akimov, Y. ; Bartenev, V. ; Cool, R. ; et al.

Phys.Rev.Lett. 39 (1977) 1432, 1977.

Inspire Record 121766 DOI 10.17182/hepdata.21002

We report results from a measurement of the inclusive processes pp→Xp and pd→Xd in the range 5<Mx2s<0.1, 0.01≲|t|≲0.1 (GeV/c)2, and incident proton momenta of 65, 154, and 372 GeV/c. Both pp and pd data show an exponential t dependence and a dominant 1Mx2 behavior for Mx2s≲0.05. By comparing pp and pd data we test factorization and, using the Glauber model, we measure the XN total cross section, σXN=43±10 mb.

4 data tables

Table 1

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CUSP IN PI- P ELASTIC SCATTERING AT THE ETA THRESHOLD

Sarma, H.N.K. ; Binnie, D.M. ; Carr, J. ; et al.

Nucl.Phys.B 161 (1979) 1-13, 1979.

Inspire Record 147683 DOI 10.17182/hepdata.34612

We present results from a high momentum resolution measurement of the π − p elastic differential cross section near the η production threshold. By analysing the cusp discontinuity in the elastic cross section we deduce the non-spin-flip elastic amplitude and compare it with solutions from phase-shift analyses.

601 data tables

Table 1

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ELASTIC SCATTERING AND OMEGA MESON PRODUCTION NEAR THE THRESHOLD OF PI- P ---> OMEGA N

Karami, H. ; Carr, J. ; Debenham, N.C. ; et al.

Nucl.Phys.B 154 (1979) 503-518, 1979.

Inspire Record 146573 DOI 10.17182/hepdata.34745

Measurements are reported of the differential cross section for the reaction π − +p→ ω +n from threshold to a final-state c.m. momentum P ∗ of 200 MeV /c . The previously reported fall in total cross section σ/P ∗ below about 100 MeV/ c is again seen. The differential cross section remains close to isotropic over the entire range. A paralle experiment on the variation in the elastic differential cross section across the threshold shows evidence of this threshold. The elastic data cover a range of incident moments from 1010 to 1180 MeV/ c in steps of 5 MeV/ c .

4 data tables

Table 1

CROSS SECTION DEPENDENCE ON FINAL STATE CENTRE OF MASS MOMENTUM.

Table 2

ANGULAR DISTRIBUTIONS ARE ALMOST ISOTROPIC.

Table 3

LEGENDRE POLYNOMIAL COEFFICIENTS NORMALIZED SUCH THAT SIG = 4*PI*LEG(L=0).

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