- Browse by Author

### Browsing by Author "Šulc Miroslav"

Now showing 1 - 20 of 37

###### Results Per Page

###### Sort Options

- ItemAntiproton over proton and K− over K multiplicity ratios at high z in DIS(ELSEVIER, 2020) Šulc Miroslav
Show more - ItemContribution of exclusive diffractive processes to the measured azimuthal asymmetries in SIDIS(ELSEVIER, 2020) Šulc Miroslav
Show more - ItemDevelopment of THGEM-based Photon Detectors for COMPASS RICH-1(neuvedno, 2012) Tessarotto Fulvio; Steiger Kateřina; Steiger Lukáš; Šulc Miroslav
Show more - ItemExclusive ω meson muoproduction on transversely polarised protons(2017) Šulc Miroslav
Show more - ItemFinal COMPASS results on the deuteron spin-dependent structure function g(1) (d) and the Bjorken sum rule(Elsevier BV, 2017) Šulc Miroslav
Show more Final results are presented from the inclusive measurement of deep-inelastic polarised-muon scattering on longitudinally polarised deuterons using a 6LiD target. The data were taken at 160 GeV beam energy and the results are shown for the kinematic range in photon virtuality, in the Bjorken scaling variable and in the mass of the hadronic final state. The deuteron double-spin asymmetry and the deuteron longitudinal-spin structure function are presented in bins of x and . Towards lowest accessible values of x, decreases and becomes consistent with zero within uncertainties. The presented final values together with the recently published final values of COMPASS are used to again evaluate the Bjorken sum rule and perform the QCD fit to the world data at next-to-leading order of the strong coupling constant. In both cases, changes in central values of the resulting numbers are well within statistical uncertainties. The flavour-singlet axial charge , which is identified in the renormalisation scheme with the total contribution of quark helicities to the nucleon spin, is extracted at next-to-leading order accuracy from only the COMPASS deuteron data: . Together with the recent results on the proton spin structure function , the results on constitute the COMPASS legacy on the measurements of through inclusive spin-dependent deep inelastic scattering.Show more - ItemFirst measurement of the Sivers asymmetry for gluons using SIDIS data(Elsevier BV, 2017) Šulc Miroslav; The COMPASS Collaboration
Show more The Sivers function describes the correlation between the transverse spin of a nucleon and the transverse motion of its partons. For quarks, it was studied in previous measurements of the azimuthal asymmetry of hadrons produced in semi-inclusive deep inelastic scattering of leptons off transversely polarised nucleon targets, and it was found to be non-zero. In this letter the evaluation of the Sivers asymmetry for gluons is presented. The contribution of the photon–gluon fusion subprocess is enhanced by requiring two high transverse-momentum hadrons. The analysis method is based on a Monte Carlo simulation that includes three hard processes: photon–gluon fusion, QCD Compton scattering and the leading-order virtual-photon absorption process. The Sivers asymmetries of the three processes are simultaneously extracted using the LEPTO event generator and a neural network approach. The method is applied to samples of events containing at least two hadrons with large transverse momentum from the COMPASS data taken with a 160 GeV/c muon beam scattered off transversely polarised deuterons and protons. With a significance of about two standard deviations, a negative value is obtained for the gluon Sivers asymmetry. The result of a similar analysis for a Collins-like asymmetry for gluons is consistent with zero.Show more - ItemFirst Measurement of Transverse-Spin-Dependent Azimuthal Asymmetries in the Drell-Yan Process(American Physical Society, 2017) Šulc Miroslav
Show more - ItemHybrid MPGD-based detectors of single photons for the upgrade of COMPASS RICH-1(IEEE, 2016) Steiger Kateřina; Steiger Lukáš; Šulc Miroslav
Show more - ItemThe hybrid MPGD-based photon detectors of COMPASS RICH-1(2020) Šulc Miroslav
Show more - ItemInterplay among transversity induced asymmetries in hadron leptoproduction(2016) Šulc Miroslav
Show more - ItemK- over K multiplicity ratio for kaons produced in DIS with a large fraction of the virtual-photon energy(2018) Šulc Miroslav
Show more - ItemLeading-order determination of the gluon polarisation from semi-inclusive deep inelastic scattering data(Springer Verlag, 2017) Šulc Miroslav
Show more - ItemLight isovector resonances in &pi-p 8594&pi-&pi-&pi p at 190 GeV/c(American Physical Society (APS), 2018) Šulc Miroslav
Show more - ItemLong Term Experience and Performance of Compass Rich-1(IOP PUBLISHING LTD, 2014) Steiger Kateřina; Šulc Miroslav; Steiger Lukáš; Finger Miroslav; Finger Michael; Tessarotto Fulvio
Show more - ItemLongitudinal double spin asymmetries in single hadron quasi-real photoproduction at high p(T)(2016) Šulc Miroslav
Show more - Item
- ItemMeasurement of the cross section for hard exclusive π0 muoproduction on the proton(2020) Šulc Miroslav
Show more - ItemMPGD-based photon detectors for the upgrade of COMPASS RICH-1 and beyond(IOP PUBLISHING LTD, 2020) Šulc Miroslav
Show more - ItemMultiplicities of charged kaons from deep-inelastic muon scattering off an isoscalar target(Elsevier BV, 2017) Šulc Miroslav; the COMPASS Collaboration
Show more Precise measurements of charged-kaon multiplicities in deep inelastic scattering were performed. The results are presented in three-dimensional bins of the Bjorken scaling variable x, the relative virtual-photon energy y, and the fraction z of the virtual-photon energy carried by the produced hadron. The data were obtained by the COMPASS Collaboration by scattering muons off an isoscalar 6LiD target. They cover the kinematic domain in the photon virtuality, , , , and in the invariant mass of the hadronic system. The results from the sum of the z-integrated and multiplicities at high x point to a value of the non-strange quark fragmentation function larger than obtained by the earlier DSS fit.Show more - ItemMultiplicities of charged pions and charged hadrons from deep-inelastic scattering of muons off an isoscalar target(Elsevier BV, 2017) Šulc Miroslav
Show more