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28 March 2024
 
  » pubmed » pmid16384369

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Measurement of the tensor structure function b1 of the deuteron
A Airapetian ; N Akopov ; Z Akopov ; M Amarian ; V V Ammosov ; A Andrus ; E C Aschenauer ; W Augustyniak ; R Avakian ; A Avetissian ; E Avetissian ; P Bailey ; D Balin ; V Baturin ; M Beckmann ; S Belostotski ; S Bernreuther ; N Bianchi ; H P Blok ; H Böttcher ; A Borissov ; A Borysenko ; M Bouwhuis ; J Brack ; A Brüll ; V Bryzgalov ; G P Capitani ; T Chen ; H C Chiang ; G Ciullo ; M Contalbrigo ; P F Dalpiaz ; R De Leo ; M Demey ; L De Nardo ; E De Sanctis ; E Devitsin ; P Di Nezza ; J Dreschler ; M Düren ; M Ehrenfried ; A Elalaoui-Moulay ; G Elbakian ; F Ellinghaus ; U Elschenbroich ; R Fabbri ; A Fantoni ; A Fechtchenko ; L Felawka ; B Fox ; S Frullani ; G Gapienko ; V Gapienko ; F Garibaldi ; K Garrow ; E Garutti ; D Gaskell ; G Gavrilov ; V Gharibyan ; G Graw ; O Grebeniouk ; L G Greeniaus ; I M Gregor ; K Hafidi ; M Hartig ; D Hasch ; D Heesbeen ; M Henoch ; R Hertenberger ; W H A Hesselink ; A Hillenbr ; M Hoek ; Y Holler ; B Hommez ; G Iarygin ; A Ivanilov ; A Izotov ; H E Jackson ; A Jgoun ; R Kaiser ; E Kinney ; A Kisselev ; M Kopytin ; V Korotkov ; V Kozlov ; B Krauss ; V G Krivokhijine ; L Lagamba ; L Lapikás ; A Laziev ; P Lenisa ; P Liebing ; L A Linden-Levy ; K Lipka ; W Lorenzon ; H Lu ; J Lu ; S Lu ; B-Q Ma ; B Maiheu ; N C R Makins ; Y Mao ; B Marianski ; H Marukyan ; F Masoli ; V Mexner ; N Meyners ; O Mikloukho ; C A Miller ; Y Miyachi ; V Muccifora ; A Nagaitsev ; E Nappi ; Y Naryshkin ; A Nass ; M Negodaev ; W-D Nowak ; K Oganessyan ; H Ohsuga ; N Pickert ; S Potashov ; D H Potterveld ; M Raithel ; D Reggiani ; P E Reimer ; A Reischl ; A R Reolon ; C Riedl ; K Rith ; G Rosner ; A Rostomyan ; L Rubacek ; J Rubin ; D Ryckbosch ; Y Salomatin ; I Sanjiev ; I Savin ; A Schäfer ; C Schill ; G Schnell ; K P Schüler ; J Seele ; R Seidl ; B Seitz ; R Shanidze ; C Shearer ; T-A Shibata ; V Shutov ; M C Simani ; K Sinram ; M Stancari ; M Statera ; E Steffens ; J J M Steijger ; H Stenzel ; J Stewart ; F Stinzing ; U Stösslein ; P Tait ; H Tanaka ; S Taroian ; B Tchuiko ; A Terkulov ; A Tkabladze ; A Trzcinski ; M Tytgat ; A Vandenbroucke ; P B van der Nat ; G van der Steenhoven ; M C Vetterli ; V Vikhrov ; M G Vincter ; C Vogel ; M Vogt ; J Volmer ; C Weiskopf ; J Wendl ; J Wilbert ; Y Ye ; Z Ye ; S Yen ; B Zihlmann ; P Zupranski ; ;
Date 9 Dec 2005
Journal Phys Rev Lett, 95 (24), 242001
AbstractThe Hermes experiment has investigated the tensor spin structure of the deuteron using the 27.6 GeV/c positron beam of DESY HERA. The use of a tensor-polarized deuteron gas target with only a negligible residual vector polarization enabled the first measurement of the tensor asymmetry A(d)zz and the tensor structure function b(d)1 for average values of the Bjorken variable 0.01< <x> <0.45 and of the negative of the squared four-momentum transfer 0.5 GeV2 < <Q2> <5 GeV2. The quantities A(d)zz and b(d)1 are found to be nonzero. The rise of b(d)1 for decreasing values of x can be interpreted to originate from the same mechanism that leads to nuclear shadowing in unpolarized scattering.
Source PubMed, pmid16384369
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