Analyzing power measurement of pp elastic scattering in the Coulomb-nuclear interference region with the 200-GeV/c polarized-proton beam at Fermilab.

The analyzing power AN of proton-proton elastic scattering in the Coulomb-nuclear interference region has been measured using the 200-GeV/c Fermilab polarized proton beam. A theoretically predicted interference between the hadronic non-spin-flip amplitude and the electromagnetic spin-flip amplitude is shown for the first time to be present at high energies in the region of 1.5 10-3 to 5.0 10-2 (GeV/c)2 four-momentum transfer squared, and our results are analyzed in connection with theoretical calculations. In addition, the role of possible contributions of the hadronic spin-flip amplitude is discussed. 1993 The American Physical Society.

Akchurin, N., Langland, J., Onel, Y., Bonner, B. E., Corcoran, M. D., Cranshaw, J., ... Takeutchi, F.

Akchurin, N||Langland, J||Onel, Y||Bonner, BE||Corcoran, MD||Cranshaw, J||Nessi-Tedaldi, F||Nessi, M||Nguyen, C||Roberts, JB||Skeens, J||White, JL||Bravar, A||Giacomich, R||Penzo, A||Schiavon, P||Zanetti, A||Bystricky, J||Lehar, F||Cossairt, JD||Read, AL||Derevschikov, AA||Matulenko, YA||Meschanin, AP||Nurushev, SB||Patalakha, DI||Rykov, VL||Solovyanov, VL||Vasiliev, AN||Grosnick, DP||Hill, DA||Laghai, M||Lopiano, D||Ohashi, Y||Shima, T||Spinka, H||Stanek, RW||Underwood, DG||Yokosawa, A||Funahashi, H||Goto, Y||Imai, K||Itow, Y||Makino, S||Masaike, A||Miyake, K||Nagamine, T||Saito, N||Yamashita, S||Iwatani, K||Kuroda, K||Michalowicz, A||Luehring, FC||Miller, DH||Maki, T||Pauletta, G||Rappazzo, GF||Salvato, G||Takashima, R||Takeutchi, F

Analyzing power measurement of pp elastic scattering in the Coulomb-nuclear interference region with the 200-GeV/c polarized-proton beam at Fermilab. Academic Article