Newsom, C.R.
DSIG/DU
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Differential cross sections for backward π− p → nπ0 from 2.6 to 8 GeV/c

DeMarzo, C. ; Guerriero, L. ; Nicolini, C. ; et al.
Phys.Lett.B 56 (1975) 487-490, 1975.
Inspire Record 1389073 DOI 10.17182/hepdata.27860

We report differential cross sections for π − p → n π 0 in the backward hemisphere at incident momenta of 2.6, 3.5, 4.3, 6.0, and 8.0 GeV/c. We observe less pronounced structure than some previous measurements with a shallow dip displaced from that seen in π + p elastic scattering.

5 data tables
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Measurement of Z / gamma* production in Compton scattering of quasi-real photons.

The OPAL collaboration Abbiendi, G. ; Ainsley, C. ; Akesson, P.F. ; et al.
Eur.Phys.J.C 24 (2002) 1-15, 2002.
Inspire Record 560307 DOI 10.17182/hepdata.49750

The process e+ e- -> e+ e- Z/gamma* is studied with the OPAL detector at LEP at a centre of mass energy of sqrt(s) = 189 GeV. The cross-section times the branching ratio of the Z/gamma* decaying into hadrons is measured within Lorentz invariant kinematic limits to be (1.2 +/- 0.3 +/- 0.1) pb for invariant masses of the hadronic system between 5 GeV and 60 GeV and (0.7 +/- 0.2 +/- 0.1) pb for hadronic masses above 60 GeV. The differential cross-sections of the Mandelstam variables s-hat, t-hat, and u-hat are measured and compared with the predictions from the Monte Carlo generators grc4f and PYTHIA. From this, based on a factorisation ansatz, the total and differential cross-sections for the subprocess e gamma -> e Z/gamma* are derived.

9 data tables
Table 1

Measured values of the cross section times the branching ratio for the (Z0/GAMMA*) decay into hadrons within the restricted kinematic limits.

Table 2

Differential cross-section dsig_ee/dm_qq.

Table 3

Differential cross-section dsigma_ee/dsqrt(shat).

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Measurement of n p Charge Exchange for Neutron Energies 150-MeV-800-MeV

Bonner, B.E. ; Simmons, J.E. ; Hollas, C.L. ; et al.
Phys.Rev.Lett. 41 (1978) 1200-1203, 1978.
Inspire Record 136397 DOI 10.17182/hepdata.20887

The s and u variations of the np charge-exchange (np→pn) cross section are measured to be relatively smooth and without structure at intermediate energies—in sharp contast to previous results.

1 data table
Table 1

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