The cross section for the reaction (p) over bar p --> e (+) e (-) has been measured at s = 8.8, 10.8, 12.4, 13.1, and 14.4 GeV2 by Fermilab experiment E835. A non-magnetic spectrometer is used to identify the e (+) e (-) final states generated by the antiproton beam intersecting an internal hydrogen gas jet target. From the analysis of the 144 observed events, new high-precision measurements of the proton magnetic form factor for timelike momentum transfers are obtained, [80556-2821(99)03013-1].
Measurements of the magnetic form factor of the proton in the timelike region at large momentum transfer
MENICHETTI, Ezio;OBERTINO, Maria Margherita;
1999-01-01
Abstract
The cross section for the reaction (p) over bar p --> e (+) e (-) has been measured at s = 8.8, 10.8, 12.4, 13.1, and 14.4 GeV2 by Fermilab experiment E835. A non-magnetic spectrometer is used to identify the e (+) e (-) final states generated by the antiproton beam intersecting an internal hydrogen gas jet target. From the analysis of the 144 observed events, new high-precision measurements of the proton magnetic form factor for timelike momentum transfers are obtained, [80556-2821(99)03013-1].
File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
