Kato, S.
[1.0, 2.0]
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Polarization of the recoil proton from the process gamma n ---> p pi- in deuterium for (theta pi)c.m.=90 degrees in the second-resonance region

Beneventano, M. ; D' Angelo, S. ; De Notaristefani, F. ; et al.
Lett.Nuovo Cim. 3S1 (1970) 840-844, 1970.
Inspire Record 64710 DOI 10.17182/hepdata.37344

None

1 data table match query
Table 1

No description provided.


Hadron pair production by electron-positron colliding beams

Barbiellini, G. ; Grilli, M. ; Iarocci, E. ; et al.
Lett.Nuovo Cim. 6S2 (1973) 557-565, 1973.
Inspire Record 86306 DOI 10.17182/hepdata.37335

None

1 data table match query
Table 1

THIS HADRON PAIR CROSS SECTION PROVIDES ONLY AN UPPER LIMIT TO THE PION FORM FACTOR ABOVE 1.5 GEV SINCE KAON PRODUCTION IS NOT DISTINGUISHED.


Production of $\pi^0 \pi^0$ and $\pi^0 \eta$ in Photon - Photon Collisions

Edwards, C. ; Partridge, Richard ; Peck, C. ; et al.
Phys.Lett.B 110 (1982) 82-86, 1982.
Inspire Record 168793 DOI 10.17182/hepdata.30959

We investigate the four-photon final state produced in γγ colissions. In the π 0 π 0 channel we observe f(1270) production with predominantly helicity 2 and measure a partial width Γ γγ 2.9 +0.6 −0.4 ± keV (independent of assumptions on the helicity). We observe A 2 (1310) production in the π 0 η channel and find a partial width Γ γγ = 0.77 ± 0.18 ± 0.27 KeV (assuming helicity 2). We give an upper limit for f ≈ ηη .

1 data table match query
Table 2

Data read from graph.


Single pi- photoproduction on neutrons in the energy region of the p(11), d(13), s(11) pion-nucleon resonances

Beneventano, M. ; D' Angelo, S. ; De Notaristefani, F. ; et al.
Nuovo Cim.A 19 (1974) 529-547, 1974.
Inspire Record 96708 DOI 10.17182/hepdata.37753

In this note we report the results obtained in a single-photoproduction experiment on neutrons in deuterium, with an experimental apparatus made of scintillation counters, spark chambers and a magnetic spectrometer; the explored energy region is one around the second resonance, that is (500÷900) MeV indicent γ-ray energy. We briefly describe the present situation of the phenomenological analysis of the single photoproduction in the second resonance region and compare the results of an analysis made by us with the results obtained by other authors; in particular the e.m. coupling of theP11 isobaric state found by us is large, in accordance with the results of some other authors.

1 data table match query
Table 1

No description provided.