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CERN Document Server 2,048 ჩანაწერია ნაპოვნი  1 - 10შემდეგიდასასრული  ჩანაწერთან გადასვლა: ძიებას დასჭირდა 1.45 წამი. 
1.
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;
2.
The Spin Structure Function $g_1^{\rm p}$ of the Proton and a Test of the Bjorken Sum Rule / COMPASS Collaboration
New results for the double spin asymmetry $A_1^{\rm p}$ and the proton longitudinal spin structure function $g_1^{\rm p}$ are presented. They were obtained by the COMPASS collaboration using polarised 200 GeV muons scattered off a longitudinally polarised NH$_3$ target. [...]
arXiv:1503.08935; CERN-PH-EP-2015-085; CERN-PH-EP-2015-085.- Geneva : CERN, 2016-02-10 - 11 p. - Published in : Phys. Lett. B 753 (2016) 18-28 Article from SCOAP3: PDF; Draft (restricted): PDF; Elsevier Open Access article: PDF; Fulltext: arXiv:1503.08935 - PDF; CERN-PH-EP-2015-085 - PDF; External link: Preprint
3.
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
4.
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
5.
First Measurement of the Transverse Spin Asymmetries of the Deuteron in Semi-Inclusive Deep Inelastic Scattering / COMPASS Collaboration
First measurements of the Collins and Sivers asymmetries of charged hadrons produced in deep-inelastic scattering of muons on a transversely polarized 6-LiD target are presented. The data were taken in 2002 with the COMPASS spectrometer using the muon beam of the CERN SPS at 160 GeV/c. [...]
hep-ex/0503002; CERN-PH-EP-2005-003; DAPNIA-05-17; CERN-PH-EP-2005-003.- Geneva : CERN, 2005 - 9 p. - Published in : Phys. Rev. Lett. 94 (2005) 202002 APS Published version, local copy: PDF; Fulltext: arXiv:hep-ex_0503002 - PDF; 0503002 - PDF; External links: Fulltext; Fermilab Library Server - Please contact the library if you need to access this document.
6.
Study of $\Sigma$(1385) and $\Xi$(1321) hyperon and antihyperon production in deep inelastic muon scattering / COMPASS collaboration
Large samples of $\Lambda$, $\Sigma(1385)$ and $\Xi(1321)$ hyperons produced in deep-inelastic muon scattering off a $^6$LiD target were collected with the COMPASS experimental setup at CERN. The relative yields of $\Sigma(1385)^+$, $\Sigma(1385)^-$, $\bar{\Sigma}(1385)^-$, $\bar{\Sigma}(1385)^+$, $\Xi(1321)^-$, and $\bar{\Xi}(1321)^+$ hyperons decaying into $\Lambda(\bar{\Lambda})\pi$ were measured. [...]
arXiv:1304.0952; CERN-PH-EP-2013-052; CERN-PH-EP-2013-052.- Geneva : CERN, 2013-10-09 - 11 p. - Published in : Eur. Phys. J. C 73 (2013) 2581 Draft (restricted): PDF; Fulltext: arXiv:1304.0952 - PDF; CERN-PH-EP-2013-052 - PDF; External link: Preprint
7.
The COMPASS Experiment at CERN / COMPASS Collaboration
The COMPASS experiment makes use of the CERN SPS high-intensitymuon and hadron beams for the investigation of the nucleon spin structure and the spectroscopy of hadrons. One or more outgoing particles are detected in coincidence with the incoming muon or hadron. [...]
hep-ex/0703049; CERN-PH-EP-2007-001; CERN-PH-EP-2007-001.- Geneva : CERN, 2007 - 84 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 577 (2007) 455-518 Fulltext: arXiv:hep-ex_0703049 - PDF; phep-2007-001 - PDF; External link: Preprint
8.
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;
9.
Gluon Polarisation in the Nucleon and Longitudinal Double Spin Asymmetries from Open Charm Muoproduction / COMPASS collaboration
The gluon polarisation in the nucleon has been determined by detecting charm production via D0 meson decay to charged K and pi in polarised muon scattering off a longitudinally polarised deuteron target. The data were taken by the COMPASS Collaboration at CERN between 2002 and 2006 and corresponds to an integrated luminosity of 2.8 fb^-1. [...]
arXiv:0904.3209.- 2009 - 16 p. - Published in : Phys. Lett. B 676 (2009) 31-38 Fulltext: S0370269309004742 - XML; arXiv:0904.3209 - PDF;
10.
Measurement of the Collins and Sivers asymmetries on transversely polarised protons / COMPASS Collaboration
The Collins and Sivers asymmetries for charged hadrons produced in deeply inelastic scattering on transversely polarised protons have been extracted from the data collected in 2007 with the CERN SPS muon beam tuned at 160 GeV/c. At large values of the Bjorken x variable non-zero Collins asymmetries are observed both for positive and negative hadrons while the Sivers asymmetry for positive hadrons is slightly positive over almost all the measured x range. [...]
arXiv:1005.5609; CERN-PH-EP-2010-013; CERN-PH-EP-2010-013.- 2010 - 9 p. - Published in : Phys. Lett. B 692 (2010) 240-246 Fulltext: PDF; External link: DURHAM

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