Measurement of the Spin Structure of the Deuteron in the DIS Region

Abstract

We present a new measurement of the longitudinal spin asymmetry A_1^d and the spin-dependent structure function g_1^d of the deuteron in the range 1 GeV^2 < Q^2 < 100 GeV^2 and 0.004< x <0.7. The data were obtained by the COMPASS experiment at CERN using a 160 GeV polarised muon beam and a large polarised 6-LiD target. The results are in agreement with those from previous experiments and improve considerably the statistical accuracy in the region 0.004 < x < 0.03.

arXiv comment10 pages, 6 figures, subm. to PLB, revised: author list, Fig. 4, details added

References in corpus (11)

• Measurements of the Proton and Deuteron Spin Structure Functions g1 and g2
• Measurement of the proton and deuteron structure functions, F2p and F2d, and of the ratio sigma(L)/sigma(T)
• Spin Structure of the Proton from Polarized Inclusive Deep-Inelastic Muon-Proton Scattering
• Quark helicity distributions in the nucleon for up, down, and strange quarks from semi--inclusive deep--inelastic scattering
• Measurement of the Deuteron Spin Structure Function g_1^d(x) for 1 (GeV/c)^2 < Q^2 < 40 (GeV/c)^2
• Polarised Quark Distributions in the Nucleon from Semi-Inclusive Spin Asymmetries
• Precision Measurement of the Proton and Deuteron Spin Structure Functions g2 and Asymmetries A2
• Measurements of R=sigma_L/sigma_T for 0.03<x<0.1 and Fit to World Data
• Determination of polarized parton distribution functions and their uncertainties
• Model independent QED corrections to the process $ep⟶eX$
• Inclusive Lambda_c Production in e^+e^- Annihilations at sqrt{s}=10.54 GeV and in Upsilon(4S) Decays

Cited by in corpus (77)

• The COMPASS Experiment at CERN
• The angular momentum controversy: What's it all about and does it matter?
• Precise determination of the spin structure function ${\mathbf{g}}_1$ of the proton, deuteron and neutron
• The Deuteron Spin-dependent Structure Function g1d and its First Moment
• A new measurement of the Collins and Sivers asymmetries on a transversely polarised deuteron target
• The Spin-dependent Structure Function of the Proton g_1^p and a Test of the Bjorken Sum Rule
• Gluon polarization in the nucleon from quasi-real photoproduction of high-pT hadron pairs
• The Spin Structure of the Nucleon
• The Theory of Deeply Inelastic Scattering
• Longitudinal Polarized Parton Densities Updated
• The Polarised Valence Quark Distribution from semi-inclusive DIS
• Impact of CLAS and COMPASS data on Polarized Parton Densities and Higher Twist
• Flavour Separation of Helicity Distributions from Deep Inelastic Muon-Deuteron Scattering
• Is gauge-invariant complete decomposition of the nucleon spin possible ?
• Gauge- and frame-independent decomposition of nucleon spin
• Geometrical approach to the proton spin decomposition
• Resolution of the Proton Spin Problem
• Determination of polarized parton distribution functions with recent data on polarization asymmetries
• Leading-Order Determination of the Gluon Polarization from high-$p_T$ Hadron Electroproduction
• Spin asymmetry A_1^d and the spin-dependent structure function g_1^d of the deuteron at low values of x and Q^2
• Leading order determination of the gluon polarisation from DIS events with high-p_T hadron pairs
• Polarized electron-beam acceleration driven by vortex laser pulses
• Understanding the proton's spin structure
• Precision measurements of $g_1$ of the proton and the deuteron with 6 GeV electrons
• Next-to-next-to-leading order QCD analysis of spin-dependent parton distribution functions and their uncertainties: Jacobi polynomials approach
• Gluon Polarisation in the Nucleon and Longitudinal Double Spin Asymmetries from Open Charm Muoproduction
• Comparative analysis of the transversities and the longitudinally polarized distribution functions of the nucleon
• Nucleon spin structure functions at NNLO in the presence of target mass corrections and higher twist effects
• Scaling laws for the (de-)polarization time of relativistic particle beams in strong fields
• Azimuthal asymmetries of charged hadrons produced by high-energy muons scattered off longitudinally polarised deuterons
• Generation of polarized particle beams at relativistic laser intensities
• Analytical approaches to the determination of spin-dependent parton distribution functions at NNLO approximation
• Anomalous Magnetic Moments and Quark Orbital Angular Momentum
• Phenomenological analysis of the nucleon spin contents and their scale dependence
• Pseudoscalar Meson Decay Constants and Couplings, the Witten-Veneziano Formula beyond large N_c, and the Topological Susceptibility
• Study of spin-dependent structure functions of ${}^3\mathrm{He}$ and ${}^3\mathrm{H}$ at NNLO approximation and corresponding nuclear corrections
• The Spin of the Proton
• More on the relation between the two physically inequivalent decompositions of the nucleon spin and momentum
• Chiral-odd generalized parton distributions, transversity decomposition of angular momentum, and tensor charges of the nucleon
• Azimuthal asymmetries of charged hadrons produced in high-energy muon scattering off longitudinally polarised deuterons
• Spin and orbital angular momentum of the proton
• $O({\alpha }_s^2$) Polarized Heavy Flavor Corrections}to Deep-Inelastic Scattering at $Q^2\gg m^2$
• Control of electron beam polarization in the bubble regime of laser-wakefield acceleration
• Acceleration of spin-polarized proton beams via two parallel laser pulses
• Higher twists in polarized DIS and the size of the constituent quark
• Target mass corrections and higher twist effects in polarized deep-inelastic scattering
• The spin of the proton in chiral effective field theory
• Angular momentum decomposition from a QED example
• Role of Positivity Constraints in Determining Polarized Parton Densities
• Quark spin content of the proton, hyperon semileptonic decays, and the decay width of the ${\Theta }^{+}$ pentaquark
• Towards three-dimensional nucleon structures at the Electron-Ion Collider in China: A study of the Sivers function
• NLO QCD method of the polarized SIDIS data analysis
• Evaluation of Bjorken polarised sum rule with a renormalon-motivated approach
• Impact of recent COMPASS data on polarized parton distributions and structure functions
• Chiral symmetry breaking and the spin content of the rho and rho' mesons
• Quark angular momentum in a spectator model
• Singlet structure function g_1 at small x and small Q^2
• Nuclear shadowing in inclusive and tagged deuteron structure functions and extraction of F_2^p-F_2^n at small x from electron-deuteron collider data
• On the new COMPASS measurement of the deuteron spin-dependent structure function $g_1^d$
• Comparison of methods to extract an asymmetry parameter from data
• Simulation of Polarized Beams from Laser-Plasma Accelerators
• Recent data analysis to revisit the spin structure function of nucleon in Laplace space
• Valence and sea contributions to the nucleon spin
• Proton spin in a light-cone chiral quark model
• The Bjorken sum rule with Monte Carlo and Neural Network techniques
• Perturbative power Q^2-corrections to the structure function g(1)
• An analysis of polarized parton distribution functions with nonlinear QCD evolution equations
• Towards an understanding of nucleon spin structure: from hard to soft scales
• Plasma acceleration of polarized particle beams
• Quark-antiquark asymmetry of helicity distributions in the nucleon sea
• Measurement of the nucleon spin structure functions for 0.01<$Q^2$<1 GeV${}^2$ using CLAS
• Extraordinary nature of the nucleon scalar charge and its densities as a signal of nontrivial vacuum structure of QCD
• New developments in the statistical approach of parton distributions
• Chiral symmetry breaking and the spin content of hadrons
• Nucleon spin structure functions, considering target mass correction and higher twist effects at the NNLO accuracy and their transverse momentum dependence
• Calculation of gluon contribution to the proton spin by using the non-perturbative quantization à la Heisenberg
• Study of the Transverse-Momentum-Dependent structure of the nucleon in Semi-Inclusive DIS