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PEDLAR, T. K; CRONIN-HENNESSY, D; SCOTT, A. W; SMITH, A; DOBBS, S; METREVELI, Z; SETH, K. K; TOMARADZE, A; ZWEBER, P; ERNST, J; ARMS, K; SEVERINI, H; GAO, K. Y; DYTMAN, S. A; LOVE, W; MEHRABYAN, S; MUELLER, J. A; SAVINOV, V; LI, Z; LOPEZ, A; MENDEZ, H; RAMIREZ, J; HUANG, G. S; GONG, D. T; MILLER, D. H; PAVLUNIN, V; SANGHI, B; SHIPSEY, I. P. J; ADAMS, G. S; ANDERSON, M; CUMMINGS, J. P; DANKO, I; NAPOLITANO, J; HE, Q; HIETALA, J; MURAMATSU, H; PARK, C. S; THORNDIKE, E. H; COAN, T. E; GAO, Y. S; LIU, F; ARTUSO, M; BOULAHOUACHE, C; BLUSK, S; BUTT, J; KUBOTA, Y; DORJKHAIDAV, O; LI, J; MENAA, N; MOUNTAIN, R; RANDRIANARIVONY, K; REDJIMI, R; SIA, R; SKWARNICKI, T; STONE, S; WANG, J. C; KLEIN, T; LANG, B. W; LI, S. Z; POLING, R
Physical review letters, 12/2005, Letnik: 95, Številka: 26Journal Article
Using 20.7 pb(-1) of e(+)e(-) annihilation data taken at sq.rt(r) = 3.671 GeV with the CLEO-c detector, precision measurements of the electromagnetic form factors of the charged pion, charged kaon, and proton have been made for timelike momentum transfer of |Q(2)| = 13.48 GeV(2) by the reaction e(+)e(-) --> h(+)h(-). The measurements are the first ever with identified pions and kaons of |Q(2)| > 4 GeV(2), with the results F(13.48 GeV(2)) = 0.075 +/- 0.008(stat) +/- 0.005(syst) and F(K)(13.48 GeV(2)) = 0.063 +/- 0.004(stat) +/- 0.001(syst). The result for the proton, assuming G(p)(E) = G(p)(M), is G(p)(M)(13.48 GeV(2)) = 0.014 +/- 0.002(stat) +/- 0.001(syst), which is in agreement with earlier results.
