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Revealing Color Forces with Transverse Polarized Electron Scattering.
Armstrong, W; Kang, H; Liyanage, A; Maxwell, J; Mulholland, J; Ndukum, L; Ahmidouch, A; Albayrak, I; Asaturyan, A; Ates, O; Baghdasaryan, H; Boeglin, W; Bosted, P; Brash, E; Butuceanu, C; Bychkov, M; Carter, P; Chen, C; Chen, J-P; Choi, S; Christy, M E; Covrig, S; Crabb, D; Danagoulian, S; Daniel, A; Davidenko, A M; Davis, B; Day, D; Deconinck, W; Deur, A; Dunne, J; Dutta, D; El Fassi, L; Ellis, C; Ent, R; Flay, D; Frlez, E; Gaskell, D; Geagla, O; German, J; Gilman, R; Gogami, T; Gomez, J; Goncharenko, Y M; Hashimoto, O; Higinbotham, D; Horn, T; Huber, G M; Jones, M; Jones, M K.
Afiliação
  • Armstrong W; Temple University, Philadelphia, Pennsylvania 19122, USA.
  • Kang H; Argonne National Laboratory, Argonne, Illinois 60439, USA.
  • Liyanage A; Seoul National University, Seoul, South Korea.
  • Maxwell J; Hampton University, Hampton, Virginia 23669, USA.
  • Mulholland J; University of Virginia, Charlottesville, Virginia 22904, USA.
  • Ndukum L; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Ahmidouch A; University of Virginia, Charlottesville, Virginia 22904, USA.
  • Albayrak I; Mississippi State University, Starkville, Mississippi 39759, USA.
  • Asaturyan A; North Carolina A&M State University, Greensboro, North Carolina 27411, USA.
  • Ates O; Hampton University, Hampton, Virginia 23669, USA.
  • Baghdasaryan H; Yerevan Physics Institute, 0036, Yerevan, Armenia.
  • Boeglin W; Hampton University, Hampton, Virginia 23669, USA.
  • Bosted P; University of Virginia, Charlottesville, Virginia 22904, USA.
  • Brash E; Florida International University, Miami, Florida 33199, USA.
  • Butuceanu C; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Bychkov M; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Carter P; Christopher Newport University, Newport News, Virginia 23606, USA.
  • Chen C; University of Regina, Regina, Saskatchewan, S4S 0A2, Canada.
  • Chen JP; University of Virginia, Charlottesville, Virginia 22904, USA.
  • Choi S; Christopher Newport University, Newport News, Virginia 23606, USA.
  • Christy ME; Hampton University, Hampton, Virginia 23669, USA.
  • Covrig S; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Crabb D; Seoul National University, Seoul, South Korea.
  • Danagoulian S; Hampton University, Hampton, Virginia 23669, USA.
  • Daniel A; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Davidenko AM; University of Virginia, Charlottesville, Virginia 22904, USA.
  • Davis B; North Carolina A&M State University, Greensboro, North Carolina 27411, USA.
  • Day D; Ohio University, Athens, Ohio 45701, USA.
  • Deconinck W; Kurchatov Institute-IHEP, Protvino, Moskva 123098, Russia.
  • Deur A; North Carolina A&M State University, Greensboro, North Carolina 27411, USA.
  • Dunne J; University of Virginia, Charlottesville, Virginia 22904, USA.
  • Dutta D; William & Mary, Williamsburg, Virginia 23185, USA.
  • El Fassi L; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Ellis C; Mississippi State University, Starkville, Mississippi 39759, USA.
  • Ent R; Mississippi State University, Starkville, Mississippi 39759, USA.
  • Flay D; Mississippi State University, Starkville, Mississippi 39759, USA.
  • Frlez E; Rutgers University, New Brunswick, New Jersey 08901, USA.
  • Gaskell D; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Geagla O; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • German J; Temple University, Philadelphia, Pennsylvania 19122, USA.
  • Gilman R; University of Virginia, Charlottesville, Virginia 22904, USA.
  • Gogami T; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Gomez J; University of Virginia, Charlottesville, Virginia 22904, USA.
  • Goncharenko YM; North Carolina A&M State University, Greensboro, North Carolina 27411, USA.
  • Hashimoto O; Rutgers University, New Brunswick, New Jersey 08901, USA.
  • Higinbotham D; Tohoku University, Tohoku, Miyagi Prefecture 980-8577, Japan.
  • Horn T; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
  • Huber GM; Kurchatov Institute-IHEP, Protvino, Moskva 123098, Russia.
  • Jones M; Tohoku University, Tohoku, Miyagi Prefecture 980-8577, Japan.
  • Jones MK; Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA.
Phys Rev Lett ; 122(2): 022002, 2019 Jan 18.
Article em En | MEDLINE | ID: mdl-30720291
ABSTRACT
The Spin Asymmetries of the Nucleon Experiment measured two double spin asymmetries using a polarized proton target and polarized electron beam at two beam energies, 4.7 and 5.9 GeV. A large-acceptance open-configuration detector package identified scattered electrons at 40° and covered a wide range in Bjorken x (0.3color Lorentz force, the twist-3 matrix element, d[over ˜]_{2}^{p}, was extracted from the measured asymmetries at Q^{2} values ranging from 2.0 to 6.0 GeV^{2}. The data display the opposite sign compared to most quark models, including the lattice QCD result, and an unexpected scale dependence. Furthermore, when combined with the neutron data in the same Q^{2} range the results suggest a flavor independent average color Lorentz force.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Estados Unidos
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Phys Rev Lett Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Estados Unidos