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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 (Articolo in rivista)

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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 (Articolo in rivista) (literal)

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DP Grosnick, DA Hill, T Kasprzyk, D Lopiano, Y Ohashi, J Sheppard, T Shima, H Spinka, R Stanek, DG Underwood, A Yokosawa, J Bystricky, P Chaumette, J Deregel, G Durand, J Fabre, F Lehar, A De Lesquen, L Van Rossum, FC Luehring, Donald H Miller, P Shanahan, KW Krueger, JD Cossairt, Anthony L Read, K Iwatani, NI Belikov, AA Derevschikov, OA Grachov, Yu A Matulenko, AP Meschanin, SB Nurushev, DI Patalakha, VL Rykov, VL Solovyanov, AN Vasiliev, N Akchurin, Y Onel, T Maki, H En'yo, H Funahashi, Y Goto, T Iijima, K Imai, Y Itow, S Makino, A Masaike, K Miyake, T Nagamine, N Saito, S Yamashita, R Takashima, F Takeutchi, K Kuroda, A Michalowicz, N Tanaka, G Salvato, A Villari, N Tamura, T Yoshida, MD Corcoran, J Cranshaw, F Nessi-Tedaldi, M Nessi, C Nguyen, JB Roberts, J Skeens, JL White, A Bravar, A Penzo, P Schiavon, G Pauletta (1997)
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
in Physical review. D. Particles and fields
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

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

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Argonne National Laboratory, Argonne, Illinois 60439 CEA-DAPNIAySPP, CE-Saclay, F-91191 Gif-sur Yvette, France Fermi National Accelerator Laboratory, Batavia, Illinois 60510 Hiroshima University, Higashi-Hiroshima 724, Japan Institute of High Energy Physics, 142284 Protvino, Russia Department of Physics and Astronomy, University of Iowa, Iowa City, Iowa 52242 University of Occupational and Environmental Health, Kita-Kyushu 807, Japan Department of Physics, Kyoto University, Kyoto 606-01, Japan Kyoto University of Education, Kyoto 612, Japan Kyoto-Sangyo University, Kyoto 612, Japan Laboratoire de Physique des Particules, BP 909, 74017 Annecy-le-Vieux, France Dipartimento di Fisica, Università di Messina and INFN Messina, I-98100 Messina, Italy Physics Department, Northwestern University, Evanston, Illinois 60201 Department of Physics, Okayama University, Okayama 800, Japan Osaka City University, Osaka 558, Japan T.W. Bonner Nuclear Laboratory, Rice University, Houston, Texas 77251 Dipartimento di Fisica, Università di Trieste and INFN Trieste, I-34100 Trieste, Italy (literal)

Titolo

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 (literal)

Abstract

The highest-energy measurement of ??L(pp) and the first ever measurement of ??L(p¯p), the differences between proton-proton and antiproton-proton total cross sections for pure longitudinal spin states, are described. Data were taken using 200-GeV/c polarized beams incident on a polarized-proton target. The results are measured to be ??L(pp)=-42±48(stat)±53(syst) ?b and ??L(p¯p)=-256±124(stat)±109(syst) ?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 200 GeV/c 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 10-5 level. (literal)

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