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CERN Document Server 2,028 records found  1 - 10próximoend  jump to record: Search took 3.30 seconds. 
1.
(100)
Measurement of the Spin Structure of the Deuteron in the DIS Region / COMPASS Collaboration
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. [...]
hep-ex/0501073; CERN-PH-EP-2005-001; DAPNIA-05-11; CERN-PH-EP-2005-001.- Geneva : CERN, 2005 - 9 p. - Published in : Phys. Lett. B 612 (2005) 154-164 Fulltext: arXiv:hep-ex_0501073 - PDF; 0501073 - PDF; External link: Preprint - Please contact the library if you need to access this document.
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2.
(91)
Spin asymmetry $A^d_1$ and the spin-dependent structure function $g^d_1$ of the deuteron at low values of $x$ and $Q^2$ / COMPASS Collaboration
We present a precise measurement of the deuteron longitudinal spin asymmetry A_1^d and of the deuteron spin-dependent structure function g_1^d at Q^2 < 1 GeV^2 and 4*10^-5 < x < 2.5*10^-2 based on the data collected by the COMPASS experiment at CERN during the years 2002 and 2003. The statistical precision is tenfold better than that of the previous measurement in this region. [...]
hep-ex/0701014; DAPNIA-07-18; CERN-PH-EP-2006-040; CERN-PH-EP-2006-040.- Geneva : CERN, 2007 - 17 p. - Published in : Phys. Lett. B 647 (2007) 330-340 Fulltext: S0370269307002419 - XML; phep-2006-040 - PDF; arXiv:hep-ex_0701014 - PDF; External link: Preprint
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3.
(38)
Final COMPASS results on the deuteron spin-dependent structure function $g_1^{\rm d}$ and the Bjorken sum rule / COMPASS Collaboration
Final results are presented from the inclusive measurement of deep-inelastic polarised-muon scattering on longitudinally polarised deuterons using a $^6$LiD target. The data were taken at $160~{\rm GeV}$ beam energy and the results are shown for the kinematic range $1~({\rm GeV}/c)^2 < Q^2 < 100~({\rm GeV}/c)^2$ in photon virtuality, $0.004 4~{\rm GeV}/c^2$ in the mass of the hadronic final state. [...]
arXiv:1612.00620; CERN-EP-2016-299.- Geneva : CERN, 2017-06-10 - 8 p. - Published in : Phys. Lett. B 769 (2017) 34-41 Article from SCOAP3: PDF; Fulltext: PDF;
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4.
(35)
The Polarised Valence Quark Distribution from semi-inclusive DIS / COMPASS Collaboration
The semi-inclusive difference asymmetry A^{h+ - h-} for hadrons of opposite charge has been measured by the COMPASS experiment at CERN. The data were collected in the years 2002-2004 using a 160 GeV polarised muon beam scattered off a large polarised 6-LiD target and cover the range 0.006 < x < 0.7 and 1 < Q^2 < 100 (GeV/c)^2. [...]
arXiv:0707.4077; CERN-PH-EP-2007-024; CERN-PH-EP-2007-024.- Geneva : CERN, 2008 - 10 p. - Published in : Phys. Lett. B 660 (2008) 458-465 Fulltext: arXiv:0707.4077 - PDF; phep-2007-024 - PDF; External link: Preprint
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5.
(33)
Analysis of the deuteron spin structure by COMPASS / Korzenev, A (Mainz U., Inst. Kernphys.) /for the COMPASS Collaboration
New results on the longitudinal inclusive asymmetry $A^{d}_{1}$ in the rang 1 $< Q^{2} <$ 100 (GeV/c)$^{2}$ and 0.004 $< x <$ 0.7 are presented. From these results we derive the spin-dependent structure function $g^{d}_{1}$ which we include in a QCD analysis of the world data. [...]
2007 - 4 p. - Published in : Nucl. Phys. B, Proc. Suppl. 174 (2007) 39-42
In : 13th International Conference on Quantum Chromodynamics, Montpellier, France, 3 - 7 Jul 2006, pp.39-42
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6.
(33)
Flavour Separation of Helicity Distributions from Deep Inelastic Muon-Deuteron Scattering / COMPASS Collaboration
We present a LO evaluation of helicity densities of valence, \Delta u_v+\Delta d_v, non-strange sea, \Delta\bar{u}+\Delta\bar{d}, and strange quarks, \Delta s (assumed to be equal to \Delta\bar{s}). They have been obtained from the inclusive asymmetry A_{3,d} and the semi-inclusive asymmetries A^{\pi+}_{1,d}, A^{\pi-}_{1,d}, A^{K+}_{1,d}, A^{K-}_{1,d} measured in polarised deep inelastic muon-deuteron scattering. [...]
arXiv:0905.2828; CERN-PH-EP-2009-008; CERN-PH-EP-2009-008.- Geneva : CERN, 2009 - 15 p. - Published in : Phys. Lett. B 680 (2009) 217-224 Fulltext: arXiv:0905.2828 - PDF; S0370269309010351 - XML;
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7.
(31)
The Deuteron Spin-dependent Structure Function $g^{d}_1$ and its First Moment / COMPASS Collaboration
We present a measurement of the deuteron spin-dependent structure function g^d_1 based on the data collected by the COMPASS experiment at CERN during the years 2002-2004. The data provide an accurate evaluation for \Gamma^d_1, the first moment of g^d_1(x), and for the matrix element of the singlet axial current, a_0. [...]
hep-ex/0609038; DAPNIA-06-234; CERN-PH-EP-2006-029; CERN-PH-EP-2006-029.- Geneva : CERN, 2007 - 16 p. - Published in : Phys. Lett. B 647 (2007) 8-17 Fulltext: phep-2006-029 - PDF; 0609038 - PDF; arXiv:hep-ex_0609038 - PDF; External link: Preprint
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8.
(31)
Measurement of the spin structure of the deuteron at COMPASS / Hannappel, Jürgen (Mainz U. ; CERN) /COMPASS Collaboration
A new measurement of the longitudinal spin asymmetry $A^{d}_{1}$ and the spin dependent structure function $g^{d}_{1}$ of the deuteron is presented in the $Q^{2}$ range from 1GeV$^{2}$ to 100GeV$^{2}$ and the $x$ range from 0.004 to 0.7. The data were taken in 2002 and 2003 with the COMPASS experiment at CERN, scattering 160 GeV$^{2}$ polarised muons off a large polarised $^{6}$LiD target. [...]
2005 - 4 p. - Published in : AIP Conf. Proc. 792 (2005) 917-920 External link: Published version from AIP
In : 13th International Workshop on Deep Inelastic Scattering, Madison, WI, USA, 27 Apr - 1 May 2005, pp.917-920
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9.
(26)
The Spin-dependent Structure Function of the Proton $g_{1}^p$ and a Test of the Bjorken Sum Rule / COMPASS Collaboration
The inclusive double-spin asymmetry, $A_{1}^{p}$, has been measured at COMPASS in deepinelastic polarised muon scattering off a large polarised NH3 target. The data, collected in the year 2007, cover the range Q2 > 1 (GeV/c)^2, 0.004 < x < 0.7 and improve the statistical precision of g_{1}^{p}(x) by a factor of two in the region x < 0.02. [...]
arXiv:1001.4654; CERN-PH-EP-2010-001; CERN-PH-EP-2010-001.- 2010 - 12 p. - Published in : Phys. Lett. B 690 (2010) 466-472 Fulltext: CERN-PH-EP-2010-001 - PDF; arXiv:1001.4654 - PDF; External link: Preprint
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10.
(25)
Spin structure function of deuteron $g^{d}_{1}$from COMPASS / Korzenev, A (Mainz U., Inst. Kernphys.) /for the COMPASS Collaboration
New results on the longitudinal inclusive spin asymmetry $A^{d}_{1}$ in the rang 1 $< Q^{2} <$ 100 (GeV/c)$^{2}$ and 0.004 $< x >$ 0.7 are presented. From these results we derive the spin-dependent structure function $g^{d}_{1}$ which we use to evaluate the scale-invariant flavor-singlet axial charge $\hat{a}_{0}$. [...]
2007 - 3 p. - Published in : Eur. Phys. J. A 31 (2007) 606-609
In : 4th International Conference on Quarks and Nuclear Physics, Madrid, Spain, 5 - 10 Jun 2006
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