CERN Accelerating science

CERN Document Server 20 Datensätze gefunden  1 - 10nächste  gehen zum Datensatz: Die Suche hat 1.01 Sekunden gedauert. 
1.
LHCb sensitivity to gamma with B_{d}s \to h^{+}^{-} and U-spin symmetry / Fabbri, L (Bologna U., Italy)
Recent theoretical work has shown that the combined measurement of the B/sub d//sup 0/rightward arrowpi/sup positive pi; /sup negative and B/sub s//sup 0/rightward arrowK/sup positive /sup negative CP asymmetries, under the assumption of invariance of the strong interaction dynamics by exchanging the d and s quarks (U-spin symmetry), provides a way to determine the CKM phase gamma. A study of the LHCb sensitivity of the direct and mixing-induced CP-violating observables of these decays is made and the results are presented, as well as the gamma angle sensitivity. [...]
2005 - Published in : Czechoslov. J. Phys. 55 (2005) B457-464
2.
Investigation of the critical relaxation in MnF2 by muon spin rotation / De Renzi, R ; Bucci, C ; Cox, S F J ; Guidi, G ; Tedeschi, R A
The magnetic relaxation in MnF/sub 2/ has been studied by means of Muon Spin Rotation. An increase was found close to T/sub N/ in the damping of the precession signal from positive muons implanted in a single-crystal sample. [...]
1982 - Published in : Solid State Commun. 43 (1982) 683-5
3.
Dynamic polarization of \^13C nuclei in 1-butanol / Borghini, M ; Udo, Fred
Dynamic polarization of /sup 13/C nuclei of 21.0+or-1.7% has been obtained in 1-butanol. Correlation between /sup 13/C and proton polarization values shows that these two kinds of nuclei are given a single spin temperature by the dynamic polarization mechanisms. [...]
1973 - Published in : Phys. Lett. A 43 (1973) 93-4
4.
Fermion masses and weak isospin in Technicolour models / Sikivie, P (CERN)
Isospin breaking is needed in models of dynamical symmetry breaking to generate up-down splittings in the quark and lepton mass matrices. It is shown how this isospin breaking can be introduced without upsetting the relation M/sub W/=M/sub Z/ cos theta /sub W/. [...]
CERN-TH-2927.- 1981 - Published in : AIP Conf. Proc. 68 (1981) 496-500 Fulltext: PDF;
In : 20th International Conference on High-energy Physics, v.1, Madison, WI, USA, 17 - 23 Jul 1980, pp.496-500
5.
Decay of correlations for slowly decreasing potentials / Iagolnitzer, D ; Souillard, B
Rigorous melts are obtained for the two-point correlations in lattice spin-/sup 1///sub 2/ systems in v-dimensional space for interaction potentials r/sup -s/ (s>0). The ferromagnetic condition is imposed. [...]
CERN-TH-2284.- 1977 - Published in : Phys. Rev. A 16 (1977) 1700-4 APS Published version, local copy: PDF; Access to fulltext document: PDF;
6.
Dynamic polarization and relaxation of protons in 1,6-hexanediol and 1,8-octanediol : a feasibility study for a frozen spin polarized target / Borghini, M ; Niinikoski, T O ; Udo, Fred ; Weymuth, P
Results are given of an experiment to test 1,6-hexanediol and 1,8- octanediol for their suitability as materials for polarized proton targets. The samples are doped with 15% Cr/sup V/-glycol complexes. [...]
1972 - Published in : Nucl. Instrum. Methods 105 (1972) 215-220
7.
Dynamic proton polarization in propanediol below 0.5 K / de Boer, Wim ; Niinikoski, T O
Dynamic proton polarizations have been obtained in 1,2-propanediol doped with Cr/sup v/-complexes, at a sample temperature of about 0.37 K in a 2.5 T magnetic field. Short polarization time constants indicate that the mechanism for obtaining these high polarizations is the cooling of the electron spin-spin interaction reservoir. [...]
1974 - Published in : Nucl. Instrum. Methods 114 (1974) 495-8
8.
Dynamic polarization of protons, deuterons, and carbon-13 nuclei : thermal contact between nuclear spins and an electron spin-spin interaction reservoir / de Boer, Wim ; Borghini, M ; Morimoto, K ; Niinikoski, T O ; Udo, Fred
Hydrogen, deuterium, and carbon-13 nuclear spin systems have been studied in partially deuterated 1,2-ethanediol (CD/sub 2/OH)/sub 2/, doped with paramagnetic Cr/sup V/ complexes, between 0.1 and 0.5K, using the technique of dynamic polarization. Various steady- state and transient measurements demonstrate the existence of a thermal contact between the different spin species of this sample and the electron spin-spin interaction reservoir. [...]
1974 - Published in : J. Low Temp. Phys. 15 (1974) 249-67
9.
Study of depolarization of deuteron and proton beams in the Nuclotron ring / Golubeva, N Y ; Issinskij, I B ; Kondratenko, A M ; Kondratenko, A M ; Mikhajlov, V A ; Strokovsky, E A
The scheme for acceleration of polarized deuterons at the Nuclotron accelerator facility includes a cryogenic polarized deuteron source 'Polaris', a 5 MeV/nucl. [...]
JINR-R9-2002-289.
- 2002. - 32 p.
fulltext
10.
Dynamic orientation of a deuteron spin system by rf irradiation of a polarized proton spin system / de Boer, Wim
Geneva : CERN, 1975 - 29 p. - Published in : Phys. Rev. B 12 (1975) 828-38 APS Published version, local copy: PDF;

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