The spin-dependent structure function g1(x) of the deuteron from polarized deep-inelastic muon scattering: Spin Muon Collaboration (SMC)

We present a new measurement of the spin-dependent structure function gd1 of the deuteron from deep inelastic scattering of 190 GeV polarized muons on polarized deuterons. The results are combined with our previous measurements of gd1. A perturbative QCD evolution in next-to-leading order is used to...

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Publicado: 1997
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v396_n1-4_p338_Adams
http://hdl.handle.net/20.500.12110/paper_03702693_v396_n1-4_p338_Adams
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_03702693_v396_n1-4_p338_Adams
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spelling paper:paper_03702693_v396_n1-4_p338_Adams2023-06-08T15:36:34Z The spin-dependent structure function g1(x) of the deuteron from polarized deep-inelastic muon scattering: Spin Muon Collaboration (SMC) We present a new measurement of the spin-dependent structure function gd1 of the deuteron from deep inelastic scattering of 190 GeV polarized muons on polarized deuterons. The results are combined with our previous measurements of gd1. A perturbative QCD evolution in next-to-leading order is used to compute gd1(x) at a constant Q2. At Q2 = 10GeV2, we obtain a first moment Γd1 = ∫10 gd1dx = 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 Γp1, we obtain Γp1 - Γn1 = 0.183 ± 0.035 at Q2 - 10GeV2. This result is in agreement with the Bjorken sum rule which predicts Γp1 - Γn1 = 0.186 ± 0.002 at the same Q2. © 1997 Published by Elsevier Science B.V. 1997 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v396_n1-4_p338_Adams http://hdl.handle.net/20.500.12110/paper_03702693_v396_n1-4_p338_Adams
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description We present a new measurement of the spin-dependent structure function gd1 of the deuteron from deep inelastic scattering of 190 GeV polarized muons on polarized deuterons. The results are combined with our previous measurements of gd1. A perturbative QCD evolution in next-to-leading order is used to compute gd1(x) at a constant Q2. At Q2 = 10GeV2, we obtain a first moment Γd1 = ∫10 gd1dx = 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 Γp1, we obtain Γp1 - Γn1 = 0.183 ± 0.035 at Q2 - 10GeV2. This result is in agreement with the Bjorken sum rule which predicts Γp1 - Γn1 = 0.186 ± 0.002 at the same Q2. © 1997 Published by Elsevier Science B.V.
title The spin-dependent structure function g1(x) of the deuteron from polarized deep-inelastic muon scattering: Spin Muon Collaboration (SMC)
spellingShingle The spin-dependent structure function g1(x) of the deuteron from polarized deep-inelastic muon scattering: Spin Muon Collaboration (SMC)
title_short The spin-dependent structure function g1(x) of the deuteron from polarized deep-inelastic muon scattering: Spin Muon Collaboration (SMC)
title_full The spin-dependent structure function g1(x) of the deuteron from polarized deep-inelastic muon scattering: Spin Muon Collaboration (SMC)
title_fullStr The spin-dependent structure function g1(x) of the deuteron from polarized deep-inelastic muon scattering: Spin Muon Collaboration (SMC)
title_full_unstemmed The spin-dependent structure function g1(x) of the deuteron from polarized deep-inelastic muon scattering: Spin Muon Collaboration (SMC)
title_sort spin-dependent structure function g1(x) of the deuteron from polarized deep-inelastic muon scattering: spin muon collaboration (smc)
publishDate 1997
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v396_n1-4_p338_Adams
http://hdl.handle.net/20.500.12110/paper_03702693_v396_n1-4_p338_Adams
_version_ 1768541990297796608

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