A Study of the Possible Existence of rho-prime and rho-prime-prime

Alles-Borelli, V. ; Bernardini, M. ; Bollini, D. ; et al.
Nuovo Cim.A 30 (1975) 136, 1975.
Inspire Record 100204 DOI 10.17182/hepdata.37699

The possible existence of new vector mesons above the ρ is investigated. The conclusion is that our data are compatible with the existence of the ρ′-meson only if we assume as a firm theoretical prediction the Gounaris-Sakurai tail of the standard ρ-meson. Furthermore our data are compatible with the existence of the ρ″-meson if we assume the validity of the\(\bar p\)p model for the calculation of the multihadron cross-section.

3 data tables

THESE MEASUREMENTS OF THE PION FORM FACTOR ARE GIVEN IN D. BOLLINI ET AL., NCL 14, 418 (1975).

THESE MEASUREMENTS OF THE FOUR CHARGED PION CROSS SECTION ARE GIVEN IN M. BERNARDINI ET AL., PL 53B, 384 (1974).

THESE MEASUREMENTS OF THE TOTAL HADRONIC CROSS SECTION ARE GIVEN IN M. BERNARDINI ET AL., PL 51B, 200 (1974).


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

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.


E+ e- annihilation into two hadrons in the energy interval 1400-2400 mev

Alles-Borelli, V. ; Bernardini, M. ; Bollini, D. ; et al.
Phys.Lett.B 40 (1972) 433-436, 1972.
Inspire Record 75693 DOI 10.17182/hepdata.28268

The proof is given for the existence of the reaction e + e − → h ± h ∓ in the energy range 1400–2400 MeV, and its energy dependence is compared with that of e + e − → e ± e ∓ , in the same experimental conditions of observation. The exponent of the s -dependence of the ratio α = (e + e − → h ± h ∓ )/ (e + e − → e ± e ∓ ) is measured to be n = 2.08 ± 0.45, in the s -range (1.96 − 5.76) GeV 2 , on the basis of 51 e + e − → h ± h ∓ events and 8918 e + e − → e ± e ∓ events observed.

1 data table

CROSS SECTION FOR PRODUCTION OF CHARGED HADRON PAIRS.


$\pi^+$ $\pi^-$ production in $e^+$ $e^-$ collisions and $\rho$-$\omega$ interference

Augustin, J.E. ; Benaksas, D. ; Buon, J. ; et al.
(1969) 35, 1969.
Inspire Record 58289 DOI 10.17182/hepdata.37427

None

1 data table

RELATIVE PRODUCTION OF PION PAIRS WITHOUT RADIATIVE CORRECTIONS.