CERN Accelerating science

CERN Document Server 38 записей найдено  1 - 10следующийконец  перейти к записи: Поиск длился 1.27 секунд. 
1.
Spin asymmetries for events with high $p_T$ hadrons in DIS and an evaluation of the gluon polarization / Adeva, B. ; Arik, E. ; Arvidson, A. ; Badelek, B. ; Baum, G. ; Berglund, P. ; Betev, L. ; Birsa, R. ; de Botton, N. ; Bradamante, F. et al.
We present a measurement of the longitudinal spin cross section asymmetry for deep inelastic muon-nucleon interactions with two high transverse momentum hadrons in the final state. Two methods of event classification are used to increase the contribution of the Photon Gluon Fusion process to above 30%. [...]
hep-ex/0402010.- Geneva : CERN, 2004 - 13 p. - Published in : Phys. Rev. D 70 (2004) 12002-12011 APS Published version, local copy: PDF; Access to fulltext document: PDF; Fulltext: PDF; External link: hep-ex/0402010 PDF
2.
Dilution refrigerator for COMPASS polarized target / Berglund, P ; Gehring, R ; Koivuniemi, J H ; Kyynäräinen, J ; Takabayashi, N
A new experiment common muon and proton apparatus for structure and spectroscopy (COMPASS), on the spin structure of a nucleon is being prepared at CERN. The main goal of the muon programme is to measure the gluon contribution Delta G/G to the nucleon spin. [...]
Geneva : CERN, 2000 - Published in : Physica B 284-288 (2000) 2012-13
3.
Superconducting NbN microstrip detectors / Wedenig, R ; Niinikoski, T O ; Berglund, P ; Kyynäräinen, J ; Da Costa, L N ; Valtonen, M J ; Linna, R ; Salmi, J ; Seppä, H ; Suni, I /RD39 Collaboration
Superconducting NbN strip transmission line counters and coupling circuits were processed on silicon wafers using thin film techniques, and they were characterized with several methods to verify the design principles. The stripline circuits, designed using microwave design rules, were simulated using a circuit design tool enhanced to include modelling of the superconducting lines. [...]
CERN-EP-99-054.- Geneva : CERN, 1999 - 30 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 433 (1999) 646-63 Fulltext: PDF; - CERN library copies
4.
The $\mu$ polarimeter for experiment SMC at CERN SPS / Baum, G ; Bültmann, S ; Thiel, W ; Dulya, C M ; Grosse-Perdekamp, M ; Igo, G ; Trentalange, S ; Whitten, C ; Hautle, P ; Niinikoski, T O et al.
1992
In : Adriatico Research Conference on Polarization Dynamics in Nuclear and Particle Physics, Trieste, Italy, 7 - 10 Jan 1992, pp.133-141
5.
Measurement of the SMC muon beam polarisation using the asymmetry in the elastic scattering off polarised electrons / NA47 Collaboration
A muon beam polarimeter was built for the SMC experiment at the CERN SPS, for beam energies of 100 and 190 GeV. The beam polarisation is determined from the asymmetry in the elastic scattering off the polarised electrons of a ferromagnetic target whose magnetisation is periodically reversed. [...]
CERN-EP-99-090.- Geneva : CERN, 2000 - 23 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 443 (2000) 1-19 Fulltext: PDF; - CERN library copies
6.
Spin asymmetries $A_1$ of the proton and the deuteron in the low $x$ and low $Q^2$ region from polarized high energy muon scattering / NA47 Collaboration
We present the results of the spin asymmetries $A_1$ of the proton and the deuteron in the kinematic region extending down to $x=6\cdot 10^{-5}$ and $Q^2=0.01$ GeV$^2$. The data were taken with a dedicated low $x$ trigger, which required hadron detection in addition to the scattered muon, so as to reduce the background at low $x$. [...]
CERN-EP-99-061.- Geneva : CERN, 1999 - 17 p. - Published in : Phys. Rev. D 60 (1999) 072004/1-9 APS Published version, local copy: PDF; Fulltext: PDF; - CERN library copies
7.
The polarized double cell target of the SMC / NA47 Collaboration
The polarized target of the Spin Muon Collaboration at CERN was used for deep inelastic muon scattering experiments during 1993 to 1996 with a polarized muon beam to investigate the spin structure of the nucleon. Most of the experiments were carried out with longitudinal target polarization and 190 GeV muons, and some were done with transverse polarization and 100 GeV muons. [...]
CERN-EP-99-031.- Geneva : CERN, 1999 - 67 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 437 (1999) 23-67 Fulltext: PDF; - CERN library copies
8.
A large streamer chamber muon tracking detector in a high-flux fixed-target application / NA47 Collaboration
Arrays of limited streamer tubes of the Iarocci type were deployed in our experiment at CERN as part of a forward muon detector system with provisions for the beam to pass through the center of each panel in the array. A total of sixteen 4 m x 4 m panels were assembled with inductive readout strips on both sides of each panel. [...]
CERN-EP-99-030.- Geneva : CERN, 1999 - 29 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 435 (1999) 354-74 Fulltext: PS.GZ; - CERN library copies
9.
A temperature measurement system for large-scale cryogenic applications / Ylöstalo, J ; Berglund, P ; Kyynäräinen, J ; Niinikoski, T O ; Voutilainen, R
1997
In : 31st Annual Conference of the Finnish Physical Society, Helsinki, Finland, 13 - 15 Mar 1997, pp.10.24 (abstract only)
10.
A next-to-leading order QCD analysis of the spin structure function $g_1$ / Spin Muon Collaboration
We present a next-to-leading order QCD analysis of the presently available data on the spin structure function $g_1$ including the final data from the Spin Muon Collaboration (SMC). We present resu lts for the first moments of the proton, deuteron and neutron structure functions, and determine singlet and non-singlet parton distributions in two factorization schemes. [...]
CERN-EP-98-086.- Geneva : CERN, 1998 - 33 p. - Published in : Phys. Rev. D 58 (1998) 112002 APS Published version, local copy: PDF; Fulltext: PDF; - CERN library copies

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