Angular distributions for the exclusive reaction pp --> ppeta observed via the pi(+)pi(-)pi(0) decay channel have been measured at T-beam = 2.15 GeV, 2.50 GeV and 2.85 GeV (excess energies Q = 324 MeV, 412 MeV and 554 MeV). The polar angle of the eta shows an anisotropy with respect to the beam direction for the lowest energy, which vanishes for the higher energies. The anisotropy of the pp polar angle increases slightly with the beam energy.
Exclusive eta production in pp reactions
BALESTRA, Ferruccio;BERTINI, Raimondo Pietro;BUSSA, Maria Pia;FERRERO, Andrea;FERRERO, Livio;FROLOV, VLADIMIR;GARFAGNINI, Raffaello;GRASSO, Antonino;MAGGIORA, MARCO;PANZIERI, Daniele;PIRAGINO, Guido;
2003-01-01
Abstract
Angular distributions for the exclusive reaction pp --> ppeta observed via the pi(+)pi(-)pi(0) decay channel have been measured at T-beam = 2.15 GeV, 2.50 GeV and 2.85 GeV (excess energies Q = 324 MeV, 412 MeV and 554 MeV). The polar angle of the eta shows an anisotropy with respect to the beam direction for the lowest energy, which vanishes for the higher energies. The anisotropy of the pp polar angle increases slightly with the beam energy.
File in questo prodotto:
| File | Dimensione | Formato | |
|---|---|---|---|
|
2003_EPJA_18_331-334.pdf
Accesso riservato
Tipo di file:
POSTPRINT (VERSIONE FINALE DELL’AUTORE)
Dimensione
200.93 kB
Formato
Adobe PDF
|
200.93 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
