The spin-dependent structure function g1(x) of the deuteron from polarized deep-inelastic muon scattering

D. Adams , B Adeva , T. Akdogan , E. Arik , A. Arvidson , B. Badelek , M.K. Ballintijn , D. Bardin , G. Bardin , G. Baum , P. Berglund , L. Betev , I.G. Bird , R. Birsa , P. Björkholm , B.E. Bonner , N. Botton , M. Boutemeur , F. Bradamante , A. Bravar , A. Bressan , S. Bültmann , E. Burtin , C. Cavata , D. Crabb , J. Cranshaw , T. Çuhadar , S. Dalla Torre , R. Dantzig , B. Derro , A. Deshpande , S. Dhawan , C. Dulya , A. Dyring , S. Eichblatt , J.C. Faivre , D. Fasching , F. Feinstein , C. Fernandez , B. Frois , A. Gallas , J.A. Garzon , T. Gaussiran , M. Giorgi , E. Goeler , F. Gomez , G. Gracia , N. Groot , M. Grosse-Perdekamp , D. Harrach , T. Hasegawa , P. Hautle , N. Hayashi , C.A. Heusch , N. Horikawa , V.W. Hughes , G. Igo , S. Ishimoto , T. Iwata , E.M. Kabuß , T. Kageya , L. Kalinovskaya , A. Karev , H.J. Kessler , T.J. Ketel , J. Kiryluk , A. Kishi , Yu. Kisselev , L. Klostermann , D. Krämer , V. Krivokhijine , W. Kröger , V. Kukhtin , K Kurek , J. Kyynäräinen , M. Lamanna , U. Landgraf , J.M. Le Goff , F. Lehar , A. Lesquen , J. Lichtenstadt , T. Lindqvist , M. Litmaath , M. Lowe , A. Magnon , G.K. Mallot , F. Marie , A. Martin , J. Martino , T. Matsuda , B. Mayes , J.S. McCarthy , K. Medved , G. Middelkoop , D. Miller , K. Mori , J. Moromisato , A. Nagaitsev , J. Nassalski , L. Naumann , T.O. Niinikoski , J.E.J. Oberski , A. Ogawa , C. Ozben , D.P. Parks , F. Perrot-Kunne , D. Peshekhonov , R. Piegaia , L. Pinsky , S. Platchkov , M. Plo , J. Polec , D. Pose , H. Postma , J. Pretz , R. Puntaferro , T. Pussieux , J. Pyrlik , G. Rädel , G. Rijllart , J.B. Roberts , S. Rock , M. A Callejo-Rodriguez , E Rondio , A. Rosado , I. Sabo , J. Saborido , A. Sandacz , I. Savin , P. Schiavon , K.P. Schüler , R. Seitz , Y. Semertzidis , F. Sever , P. Shanahan , E.P. Sichtermann , F. Simeoni , G.I. Smirnov , A. Staude , A. Steinmetz , U. Stiegler , H. Stuhrmann , Michał Szleper , K.M. Teichert , F Tessarotto , W. Tlaczala , S. Trentalange , A. Tripet , G. Unel , M. Velasco , J. Vogt , R. Voss , R. Weinstein , C. Whitten , R Windmolders , R. Willumeit , W Wiślicki , A. Witzmann , A. Yañez , Y. Ylöstalo , A.M. Zanetti , Krzysztof Zaremba , J Zhao

Abstract

We present a new measurement of the spin-dependent structure function g1d of the deuteron from deep inelastic scattering of 190 GeV polarized muons on polarized deuterons. The results are combined with our previous measurements of g1d. A perturbative QCD evolution in next-to-leading order is used to compute g1d(x) at a constant Q2. At Q2 = 10 GeV2, we obtain a first moment Γ1d=∫1dg1ddx=0.041±0.008, a flavour-singlet axial charge of the nucleon a0 = 0.30 ± 0.08, and an axial charge of the strange quark as = −0.09 ± 0.03. Using our earlier determination of Γ1p, we obtain Γ1p − Γ1m = 0.183 ± 0.035 at Q2 = 10GeV2. This result is in agreement with the Bjorken sum rule which predicts Γ1p − Γ1n = 0.186 ± 0.002 at the same Q2.
Author D. Adams - [Rice University]
D. Adams,,
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, B Adeva - [Universidad de Santiago de Compostela]
B Adeva,,
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, T. Akdogan - [Istanbul Teknik Üniversitesi]
T. Akdogan,,
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, E. Arik - [Istanbul Teknik Üniversitesi]
E. Arik,,
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, A. Arvidson - [Uppsala Universitet]
A. Arvidson,,
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, B. Badelek - [Uppsala Universitet]
B. Badelek,,
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, M.K. Ballintijn - [Delft University of Technology]
M.K. Ballintijn,,
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, D. Bardin - [Joint Institute for Nuclear Research, Dubna]
D. Bardin,,
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, G. Bardin - [CEA Saclay]
G. Bardin,,
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, G. Baum - [Universitat Bielefeld]
G. Baum,,
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et al.`
Journal seriesPhysics Letters B, ISSN 0370-2693
Issue year1997
Vol396
No1–4
Pages338-348
ASJC Classification3106 Nuclear and High Energy Physics
DOIDOI:10.1016/S0370-2693(97)00159-7
URL http://www.sciencedirect.com/science/article/pii/S0370269397001597
Languageen angielski
Score (nominal)40
Score sourcejournalList
Publication indicators Scopus Citations = 135; WoS Citations = 134; GS Citations = 205.0; Scopus SNIP (Source Normalised Impact per Paper): 1999 = 1.481; WoS Impact Factor: 2006 = 5.043 (2) - 2007=3.656 (5)
Citation count*206 (2020-09-26)
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