A NEW MEASUREMENT OF THE SPIN-DEPENDENT STRUCTURE-FUNCTION G(1)(X) OF THE DEUTERON
- GRACIA, G
- RONDIO, E
- SABO, I
- SABORIDO, J
- SANDACZ, A
- SAVIN, I
- SCHIAVON, P
- SEGEL, R
- SEITZ, R
- SEMERTZIDIS, Y
- SHANAHAN, P
- SICHTERMANN, EP
- SMIRNOV, GI
- STAUDE, A
- STEINMETZ, A
- STIEGLER, U
- STUHRMANN, H
- SZLEPER, M
- TESSAROTTO, F
- VELASCO, M
- VOGT, J
- VOSS, R
- WEINSTEIN, R
- WHITTEN, C
- WINDMOLDERS, R
- WILLUMEIT, R
- WISLICKI, W
- WITZMANN, A
- ZANETTI, AM
- ZHAO, J
- ADAMS, D
- ADEVA, B
- ARIK, E
- ARVIDSON, A
- BADELEK, B
- BALLINTIJN, MK
- BARDIN, G
- BAUM, G
- BERGLUND, P
- BETEV, L
- BIRSA, R
- BJORKHOLM, P
- BONNER, BE
- DEBOTTON, N
- BRADAMANTE, F
- BRESSAN, A
- BULTMANN, S
- BURTIN, E
- CAVATA, C
- CLOCCHIATTI, M
- CRABB, D
- CRANSHAW, J
- CUHADAR, T
- DALLATORRE, S
- VANDANTZIG, R
- DESHPANDE, A
- DHAWAN, S
- DULYA, C
- DYRING, A
- EICHBLATT, S
- FASCHING, D
- FEINSTEIN, F
- FERNANDEZ, C
- FROIS, B
- GARZON, JA
- GIORGI, M
- VONGOELER, E
- DECASSAGNAC, RG
- DEGROOT, N
- PERDEKAMP, MG
- GULMEZ, E
- VONHARRACH, D
- HASEGAWA, T
- HAUTLE, P
- HAYASHI, N
- HEUSCH, CA
- HORIKAWA, N
- HUGHES, VW
- IGO, G
- ISHIMOTO, S
- IWATA, T
- KABUSS, EM
- KAGEYA, T
- KAREV, A
- KESSLER, HJ
- KETEL, TJ
- KISHI, A
- KISSELEV, Y
- KLOSTERMANN, L
- KRAMER, D
- KRIVOKHIJINE, V
- KROGER, W
- KUREK, K
- KYYNARAINEN, J
- LAMANNA, M
- LANDGRAF, U
- LEGOFF, JM
- LEHAR, F
- DELESQUEN, A
- LICHTENSTADT, J
- LITMAATH, M
- LOPEZPONTE, S
- LOWE, M
- MAGNON, A
- MALLOT, GK
- MARIE, F
- MARTIN, A
- MARTINO, J
- MATSUDA, T
- MAYES, B
- MCCARTHY, JS
- MEDVED, K
- VANMIDDELKOOP, G
- MILLER, D
- MORI, K
- MOROMISATO, J
- NAGAITSEV, A
- NASSALSKI, J
- NAUMANN, L
- NIINIKOSKI, TO
- OBERSKI, JEJ
- OGAWA, A
- OZBEN, C
- PENZO, A
- PEREZ, C
- PERROTKUNNE, F
- PESHEKHONOV, D
- PIEGAIA, R
- PINSKY, L
- PLATCHKOV, S
- PLO, M
- POSE, D
- POSTMA, H
- PRETZ, J
- PUSSIEUX, T
- PYRLIK, J
- REYHANCAN, I
- RIJLLART, A
- ROBERTS, JB
- ROCK, S
- RODRIGUEZ, M
Publication date
March 2021
DOI Publisher
Elsevier BV Journal
Physics Letters BAbstract
We present a new measurement of the spin-dependent structure function g(1)(d) of the deuteron in deep inelastic scattering of 190 GeV polarised muons on polarised deuterons, in the kinematic range 0.003<x<0.7 and IGeV2,Q(2)<60GeV(2). This structure function is found to be negative at small x. The first moment Gamma(1)(d)=integral(0)(1)g(1)(d)dx evaluated at Q(0)(2)=10GeV(2) is 0.034+/-0.009(stat.)+/-0.006(syst). This value is below the Ellis-Jaffe sum rule prediction by three standard deviations. Using our earlier determination of Gamma(1)(p), we obtain Gamma(1)(p)-Gamma(1)(n)=0.199+/-0.038 which agrees with the Bjorken sum rule
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