Measurement of the differences in the total cross section for antiparallel and parallel longitudinal spins and a measurement of parity nonconservation with incident polarized protons and antiprotons at 200 GeV/c Academic Article uri icon


  • The highest-energy measurement of [Formula presented] and the first ever measurement of [Formula presented], the differences between proton-proton and antiproton-proton total cross sections for pure longitudinal spin states, are described. Data were taken using 200-GeV/[Formula presented] polarized beams incident on a polarized-proton target. The results are measured to be [Formula presented] b and [Formula presented] b. Many tests of systematic effects were investigated and are described, and a comparison to theoretical predictions is also given. Measurements of parity nonconservation at [Formula presented] GeV/[Formula presented] in proton scattering and the first ever of antiproton scattering have also been derived from these data. The values are consistent with zero at the [Formula presented] level. 1997 The American Physical Society.

published proceedings

  • Physical Review D

author list (cited authors)

  • Grosnick, D. P., Hill, D. A., Kasprzyk, T., Lopiano, D., Ohashi, Y., Sheppard, J., ... Pauletta, G.

citation count

  • 18

complete list of authors

  • Grosnick, DP||Hill, DA||Kasprzyk, T||Lopiano, D||Ohashi, Y||Sheppard, J||Shima, T||Spinka, H||Stanek, R||Underwood, DG||Yokosawa, A||Bystricky, J||Chaumette, P||Derégel, J||Durand, G||Fabre, J||Lehar, F||de Lesquen, A||van Rossum, L||Luehring, FC||Miller, DH||Shanahan, P||Krueger, KW||Cossairt, JD||Read, AL||Iwatani, K||Belikov, NI||Derevschikov, AA||Grachov, OA||Matulenko, Yu A||Meschanin, AP||Nurushev, SB||Patalakha, DI||Rykov, VL||Solovyanov, VL||Vasiliev, AN||Akchurin, N||Onel, Y||Maki, T||En’yo, H||Funahashi, H||Goto, Y||Iijima, T||Imai, K||Itow, Y||Makino, S||Masaike, A||Miyake, K||Nagamine, T||Saito, N||Yamashita, S||Takashima, R||Takeutchi, F||Kuroda, K||Michalowicz, A||Tanaka, N||Salvato, G||Villari, A||Tamura, N||Yoshida, T||Corcoran, MD||Cranshaw, J||Nessi-Tedaldi, F||Nessi, M||Nguyen, C||Roberts, JB||Skeens, J||White, JL||Bravar, A||Penzo, A||Schiavon, P||Pauletta, G

publication date

  • February 1997