A5062177503- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Geophysics and Gravity Measurements
- Inertial Sensor and Navigation
- Particle Detector Development and Performance
- Atomic and Subatomic Physics Research
- Muon and positron interactions and applications
- Dark Matter and Cosmic Phenomena
- Historical Geography and Cartography
- Geological Formations and Processes Exploration
- Advanced NMR Techniques and Applications
- GNSS positioning and interference
- Superconducting Materials and Applications
- Historical Astronomy and Related Studies
- Monoclonal and Polyclonal Antibodies Research
- Eastern European Communism and Reforms
- NMR spectroscopy and applications
- Adventure Sports and Sensation Seeking
- Spectroscopy and Quantum Chemical Studies
- Genetics and Physical Performance
- Sports Performance and Training
- Astrophysics and Cosmic Phenomena
- Neutrino Physics Research
- European Politics and Security
Surveying and Mapping Authority of the Republic of Slovenia
2008-2022
Geodetic Institute of Slovenia
2021
University of Ljubljana
2021
Joint Institute for Nuclear Research
1986-2005
Dubna State University
1999-2004
Lomonosov Moscow State University
2001
Uppsala University
1994-2000
University of Buenos Aires
1996-1998
University of Miyazaki
1998
RIKEN
1998
We present the final results of spin asymmetries A1 and structure functions g1 proton deuteron in kinematic range 0.0008<x<0.7 0.2<Q2<100GeV2. For determination A1, addition to usual method which employs inclusive scattering events includes a large radiative background at low x, we use new minimizes by selecting with least one hadron as well muon state. find that this gives smaller errors for x<0.02, so it is combined provide optimal set results.Received 18 May...
We have measured the spin-dependent structure function g1p in inclusive deep-inelastic scattering of polarized muons off protons, kinematic range 0.003<x<0.7 and 1GeV2<Q2<60GeV2. A next-to-leading order QCD analysis is used to evolve g1p(x,Q2) a fixed Q02. The first moment at Q02=10GeV2 Γ1p=0.136±0.013 (stat) ±0.009 (syst) ±0.005 (evol). This result below prediction Ellis-Jaffe sum rule by more than two standard deviations. singlet axial charge a0 found be 0.28±0.16. In Adler-Bardeen...
We present a new measurement of the spin-dependent structure function g1d deuteron in deep inelastic scattering 190 GeV polarised muons on deuterons, kinematic range 0.003 < x 0.7 and 1 GeV2 Q2 60 GeV2. This is found to be negative at small x. The first moment Γ1d=∫01g1ddx evaluated Q02 = 10 0.034 ± 0.009 (stat.) 0.006 (syst.). value below Ellis-Jaffe sum rule prediction by three standard deviations. Using our earlier determination Γ1p, we obtain Γ1p − Γ1n 0.199 0.038 which agrees with Bjorken rule.
We present a measurement of semi-inclusive spin asymmetries for positively and negatively charged hadrons from deep inelastic scattering polarised muons on protons deuterons in the range 0.003<x<0.7 Q2>1 GeV2. Compared to our previous publication this subject, with new data statistical errors have been reduced by nearly factor two. From these inclusive we determine quark distributions valence quarks non-strange sea at Q2=10 The u distribution, Δuv(x), is positive polarisation increases x. d...
We present a next-to-leading order QCD analysis of the presently available data on spin structure function g1 including final from Spin Muon Collaboration. results for first moments proton, deuteron, and neutron functions, determine singlet nonsinglet parton distributions in two factorization schemes. also test Bjorken sum rule find agreement with theoretical prediction at level 10%.Received 18 May 1998DOI:https://doi.org/10.1103/PhysRevD.58.112002©1998 American Physical Society
We present a measurement of the longitudinal spin cross section asymmetry for deep-inelastic muon-nucleon interactions with two high transverse momentum hadrons in final state. Two methods event classification are used to increase contribution photon-gluon fusion process above 30%. The most effective one, based on neural network approach, provides asymmetries Al→NlhhXp=0.030±0.057(stat)±0.010(syst) and Al→NlhhXd=0.070±0.076(stat)±0.010(syst). From these values we derive an averaged gluon...
We present a new measurement of the spin-dependent structure function g1d deuteron from deep inelastic scattering 190 GeV polarized muons on deuterons. The results are combined with our previous measurements g1d. A perturbative QCD evolution in next-to-leading order is used to compute g1d(x) at constant Q2. At Q2 = 10 GeV2, we obtain first moment Γ1d=∫1dg1ddx=0.041±0.008, flavour-singlet axial charge nucleon a0 0.30 ± 0.08, and an strange quark as −0.09 0.03. Using earlier determination Γ1p,...
We measured the spin asymmetry in scattering of 100 GeV longitudinally-polarized muons on transversely polarized protons. The was found to be compatible with zero kinematic range 0.006 < x 0.6, 1 Q2 30GeV2. From this result we derive upper limits for virtual photon-proton A2, and structure function g2. For 0.15, A2 is significantly smaller than its positivity limit √R.
We present the results of spin asymmetries ${A}_{1}$ proton and deuteron in kinematic region extending down to $x=6\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}5}$ ${Q}^{2}=0.01{\mathrm{GeV}}^{2}.$ The data were taken with a dedicated low x trigger, which required hadron detection addition scattered muon, so as reduce background at x. complement our previous measurements two sets are consistent overlap region. No significant effects found newly explored
We present a new measurement of the virtual photon proton asymmetry A1p from deep inelastic scattering polarized muons on protons in kinematic range 0.0008 < x 0.7 and 0.2 Q2 100 GeV2. With this, statistical uncertainty our has improved by factor 2 compared to previous measurements. The spin-dependent structure function g1p is determined for data with > 1 A perturbative QCD evolution next-to-leading order used determine g1p(x) at constant Q2. At = 10 GeV2 we find, measured range,...
V okviru projekta Vzpostavljanje evropskega prostorskega referenčnega sistema v Sloveniji je bila izračunana tudi ploskev testnega geoida.V prispevku bo predstavljena primerjava določitve geoidnih višin iz geoida 2000 in leta 2010
We report a large enhancement of 1.7 in deuteron polarization up to values 0.6 due frequency modulation the polarizing microwaves two liters polarized target using method dynamic nuclear polarization. This was used during deep inelastic muon-deuteron scattering experiment at CERN. Measurements electron paramagnetic resonance absorption spectra show that gives rise additional microwave spectral wings. Although these results are not understood theoretically, they may provide useful testing...
An analytic model of the deuteron absorption function has been developed and is compared to experimental NMR signals deuterated butanol obtained at SMC experiment in order determine polarization. The includes dipolar broadening a frequency-dependent treatment intensity factors. high-precision TE signal data available are used adjust for Q-meter distortions dispersion effects. Once adjustment made, enhanced polarizations determined by asymmetry TE-calibration methods compare well within...
The 1996 data taking of the SMC experiment used polarized protons to measure spin dependent structure function g 1 proton.Three liters solid granular ammonia were irradiated at Bonn electron linac in order create paramagnetic radicals which are needed for polarizing protons.Proton polarizations (90 2:5) % routinely reached.An analysis based on a theoretical line-shape spin-1 systems with large quadrupolar broadening was developed allowed nitrogen polarization be determined 10 relative...
uvodDržavni geodetski referenčni sistem je opredeljen kot sistemska državna infrastruktura za določanje in izražanje položaja objektov pojavov v prostoru.Sestavljata ga državni prostorski koordinatni topografski sistem.Državni omogoča enotno kakovostno položajev ter vzpostavljanje, vodenje uporabo prostorskih podatkov javnem zasebnem sektorju na celotnem državnem ozemlju.Organi javne uprave podatke vodijo javnih evidencah potrebe izvajanja nalog s svojih delovnih področij, predvsem pri...
The paper presents all stages of the development and processing fundamental gravimetric network Slovenia, which consists a zero order network, has six absolute gravity stations, twenty nine first stations. Descriptions are given design geological assessment survey post-processing adjustment observations, was performed in two stages. First observations were adjusted as free then standard performed. Finally, values at stations analysed against Potsdam system, basis previous calculations...
Horizontalna sestavina slovenskega državnega prostorskega koordinatnega sistema temelji na