Measurement of the spin-dependent structure function g1(x) of the deuteron

• DOI: 10.1016/0370-2693(93)90438-n
• Publication Date: 2002-11-12T11:13:41Z
• Authors: B. Adeva; S. Ahmad; A. Arvidson; B. Badelek; M.K. Ballintijn; G. Bardin; G. Baum; P. Berglund; L. Betev; I.G. Bird; R. Birsa; P. Björkholm; B.E. Bonner; N. de Botton; M. Boutemeur; F. Bradamante; A. Bressan; A. Brüll; J. Buchanan; S. Bültmann; E. Burtin; C. Cavata; J.P. Chen; J. Clement; M. Clocchiatti; M.D. Corcoran; D. Crabb; J. Cranshaw; T. Çuhadar; S. Dalla Torre; R. van Dantzig; D. Day; S. Dhawan; C. Dulya; A. Dyring; S. Eichblatt; J.C. Faivre; D. Fasching; F. Feinstein; C. Fernandez; B. Frois; C. Garabatos; J.A. Garzon; L. Gatignon; T. Gaussiran; M. Giorgi; E. von Goeler; I.A. Goloutvin; A. Gomez; G. Gracia; M. Grosse Perdekamp; W. Grübler; D. von Harrach; T. Hasegawa; P. Hautle; N. Hayashi; C.A. Heusch; N. Horikawa; V.W. Hughes; G. Igo; S. Ishimoto; T. Iwata; M. de Jong; E.M. Kabuß; R. Kaiser; A. Karev; H.J. Kessler; T.J. Ketel; I. Kiryushin; A. Kishi; Yu. Kisselev; L. Klostermann; W. Knop; V. Krivokhijine; V. Kukhtin; J. Kyynäräinen; M. Lamanna; U. Landgraf; K. Lau; T. Layda; F. Lehar; A. de Lesquen; J. Lichtenstadt; T. Lindqvist; M. Litmaath; S. Lopez-Ponte; M. Lowe; A. Magnon; G.K. Mallot; F. Marie; A. Martin; J. Martino; B. Mayes; J.S. McCarthy; G. van Middelkoop; D. Miller; J. Mitchell; K. Mori; J. Moromisato; G.S. Mutchler; J. Nassalski; L. Naumann; B. Neganov; T.O. Niinikoski; J.E.J. Oberski; S. Okumi; A. Penzo; G. Perez; F. Perrot-Kunne; D. Peshekhonov; R. Piegaia; L. Pinsky; S. Platchkov; M. Plo; D. Pose; H. Postma; T. Pussieux; J. Pyrlik; J.M. Rieubland; A. Rijllart; J.B. Roberts; M. Rodriguez; E. Rondio; L. Ropelewski; A. Rosado; I. Sabo; J. Saborido; G. Salvato; A. Sandacz; D. Sanders; I. Savin; P. Schiavon; P. Schüler; R. Segel; R. Seitz; S. Sergeev; F. Sever; P. Shanahan; G. Smirnov; A. Staude; A. Steinmetz; H. Stuhrmann; K.M. Teichert; F. Tessarotto; W. Thiel; S. Trentalange; Y. Tzamouranis; M. Velasco; J. Vogt; R. Voss; R. Weinstein; C. Whitten; R. Windmolders; W. Wislicki; A. Witzmann; A. Yañez; N.I. Zamiatin; A.M. Zanetti
• Keywords: Structure function; Spin structure

We report on the first measurement of the spin-dependent structure function g1d of the deuteron in the deep inelastic scattering of polarised muons off polarised deuterons, in the kinematical range 0.006<x<0.6, 1 GeV2<Q2<30 GeV2. The first moment, Γ1d=sh{phonetic}01 g1d dx=0.023±0.020 (stat.) ± 0.015 (syst.), is smaller than the prediction of the Ellis-Jaffe sum rules. Using earlier measurements of g1p, we infer the first moment of the spin-dependent neutron structure function g1n. The difference Γ1p-Γ1n=0.20 ±0.05 (stat.) ± 0.04 (syst.) agrees with the prediction of the Bjorken sum rule, Γ1p-Γ1n=0.191 ±0.002.