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BaBar Results on E+ E- ---> P Anti-P By Means of ISR

Description: BaBar has measured with unprecedented accuracy the e{sup +}e{sup -} {yields} p{bar p} cross section from the threshold up to Q{sub p{bar p}}{sup 2} {approx} 20 GeV{sup 2}/c{sup 4}, finding out an unexpected cross section, with plateaux and negative steps. Evidence for a ratio |G{sub E}/G{sub M}| > 1 has also been found as well as a sudden variation in |G{sub M}| just above the threshold.
Date: February 21, 2006
Creator: Ferroli, Rinaldo Baldini
Partner: UNT Libraries Government Documents Department