Peck, C.
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Evidence for a Resonant Behavior in e+ e- Annihilation Into Hadrons, Around 1820-MeV, at ADONE

Bacci, C. ; Baldini-Celio, R. ; Capon, G. ; et al.
Phys.Lett.B 68 (1977) 393-396, 1977.
Inspire Record 119881 DOI 10.17182/hepdata.27562

Multihadron production has been measured at the Adone e + e − storage ring in the c.m. energy region 1600 ÷ 1900 MeV. A resonant behaviour is observed, centered at 1819 ± 5 (±2) MeV, with a width of 24 ± 5 (±4) MeV. This effect is observed only in the events with 3 or 4 charged particles together with photons, but not in those without photons.

1 data table
Table 1

MULTIHADRON EVENTS (3 OR 4 CHARGED PARTICLES PLUS ONE OR MORE PHOTONS DETECTED) PER UNIT LUMINOSITY. RESONANCE NOT SEEN IN EVENTS WITH NO PHOTONS.


The Real Part of the Forward Proton Proton Scattering Amplitude Measured at the CERN Intersecting Storage Rings

Amaldi, U. ; Cocconi, G. ; Diddens, A.N. ; et al.
Phys.Lett.B 66 (1977) 390-394, 1977.
Inspire Record 110800 DOI 10.17182/hepdata.27584

The real part of the proton proton elastic scattering amplitude has been determined from its interference with the Coulomb amplitude at total centre-of-mass energies up to 62 GeV. The observed steady increase of ϱ with energy indicates that the total proton proton cross section continues to increase well beyond this energy.

2 data tables
Table 1

No description provided.

Table 2

USING SIG AND SLOPE OBTAINED FROM INTERPOLATIONS OF PREVIOUS MEASUREMENTS.


A Measurement of the Cross-Section of the Reaction p p --> n Delta++ (1232) at ISR Energies

Kwak, N. ; Nagy, E. ; Regler, M. ; et al.
Phys.Lett.B 62 (1976) 359-362, 1976.
Inspire Record 108757 DOI 10.17182/hepdata.27678

A measurement of the cross section of the charge-exchange reaction pp→ Δ ++ (1232)n at √ s = 23, 31 and 45 GeV at the CERN-ISR is reported. The energy dependence continues to follow a power law p lab − n with n = 1.94 ± 0.03 indicating dominance of one-pion exchange at the lowest ISR energy; there is some evidence for deviation from this at the higher ISR energies.

3 data tables
Table 1

No description provided.

Table 2

No description provided.

Table 3

No description provided.