Polarization of Σ hyperons produced by 800 GeV/c protons on Cu and Be Article

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Overview

abstract

• We show that Σ hyperons produced by 800 GeV/c protons on targets of Be and Cu have significant polarizations (15-20%25). These polarizations persist at values of pt = 2 GeV/c and a wide range of xF. The polarizations from the Cu target are consistently less than from Be. The average ratio of the Σ polarization from Cu to that from Be is 0.68 ± 0.08.
• We show that Σ%2b hyperons produced by 800 GeV/c protons on targets of Be and Cu have significant polarizations (15-20%25). These polarizations persist at values of pt = 2 GeV/c and a wide range of xF. The polarizations from the Cu target are consistently less than from Be. The average ratio of the Σ%2b polarization from Cu to that from Be is 0.68 ± 0.08.

authors

• Alkhazov G.
• Atamantchouk A.G.
• Balatz M.Y.
• Bondar N.F.
• Chensheng M.
• Cooper P.
• Dauwe L.J.
• Davidenko G.V.
• de Oliveira E.
• Dersch U.
• Dolgolenko A.G.
• Dzyubenko G.B.
• Edelstein R.
• Emediato L.
• Endler A.M.F.
• Engelfried Jatzkowski Jurgen
• Eschrich I.
• Escobar C.O.
• Evdokimov A.V.
• Filimonov I.S.
• Garcia F.G.
• Gaspero M.
• Giller I.
• Golovtsov V.L.
• Gouffon P.
• Gülmez E.
• Iori M.
• Jun S.Y.
• Kangling H.
• Kaya M.
• Kilmer J.
• Kim V.T.
• Kochenda L.M.
• Konorov I.
• Kozhevnikov A.
• Krivshich A.G.
• Krüger H.
• Kubantsev M.A.
• Kubarovsky V.
• Kulyavtsev A.I.
• Kuropatkin N.P.
• Kurshetsov V.F.
• Kushnirenko A.
• Kwan S.
• Lach J.
• Lamberto A.
• Landsberg L.G.
• Larin I.
• Leikin E.M.
• Luksys M.
• Lungov T.
• Maleev V.P.
• Mao D.
• Mathew P.
• Mattson M.
• Matveev V.
• McCliment E.
• Moinester M.A.
• Molchanov V.
• Morelos A.
• Nelson K.D.
• Nemitkin A.
• Neoustroev P.V.
• Newsom C.
• Nilov A.P.
• Nurushev S.B.
• Ocherashvili A.
• Onel Y.
• Ozel E.
• Ozkurucuklu S.
• Penzo A.
• Petrenko S.I.
• Pogodin P.
• Procario M.
• Prutskoi V.A.
• Ramberg E.
• Rappazzo G.F.
• Razmyslovich B.V.
• Rud V.
• Russ J.
• Schiavon P.
• Shuchen Z.
• Simon J.
• Sitnikov A.I.
• Skow D.
• Smith V.J.
• Srivastava M.
• Steiner V.
• Stepanov V.
• Stutte L.
• Svoiski M.
• Terentyev N.K.
• Thomas G.P.
• Uvarov L.N.
• Vasiliev A.N.
• Vavilov D.V.
• Verebryusov V.S.
• Victorov V.A.
• Vishnyakov V.E.
• Vorobyov A.A.
• Vorwalter K.
• Wenheng Z.
• You J.
• Yushan L.
• Zhenlin M.
• Zukanovich Funchal R.

publication date

• 2004-01-01

funding provided via

• British Skin Foundation, BSF  Grant
• Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie, BMBWF  Grant
• Conselho Nacional de Desenvolvimento Científico e Tecnológico, CNPq  Grant
• Fundação de Amparo à Pesquisa do Estado de São Paulo, FAPESP  Grant
• Israel Academy of Sciences and Humanities  Grant
• Israel Science Foundation, ISF  Grant
• Istituto Nazionale di Fisica Nucleare, INFN  Grant
• National Science Foundation, NSF: 9602178  Grant
• North Atlantic Treaty Organization, NATO: CR6.941058-1360/94  Grant
• U.S. Department of Energy, USDOE: DE-Aco2-76CHO3000, DE-FG02-91ER40664  Grant
• Universidad Autónoma de San Luis Potosí, UASLP  Grant

published in

• Physical Review D - Particles, Fields, Gravitation and Cosmology  Journal

Research

keywords

• beryllium; copper; article; dipole; magnet; magnetic field; neutron; polarization; proton radiation

Identity

Digital Object Identifier (DOI)

• 10.1103/PhysRevD.70.112005

Additional Document Info

start page

• 112005

end page

• 1-112005-6

volume

• 70

issue

• 11