K. Lavickova
A5007763037- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Particle physics theoretical and experimental studies
- Nuclear physics research studies
- Atomic and Subatomic Physics Research
- Quantum, superfluid, helium dynamics
- Random Matrices and Applications
- Particle Accelerators and Free-Electron Lasers
Czech Technical University in Prague
2023-2024
A. Alikhanyan National Laboratory
2023
University of Aveiro
2023
The production of vector mesons in deep inelastic scattering is an interesting yet scarsely explored channel to study the transverse spin structure nucleon and related phenomena. COMPASS collaboration has performed first measurement Collins Sivers asymmetries for inclusively produced $\rho^0$ mesons. analysis based on data set collected $2010$ using a $160\,\,\rm{GeV}/c$ $\mu^+$ beam impinging transversely polarized $\rm{NH}_3$ target. $\rho^{0}$ are selected from oppositely charged hadron...
New results are presented on a high-statistics measurement of Collins and Sivers asymmetries charged hadrons produced in deep inelastic scattering muons transversely polarized ^{6}LiD target. The data were taken 2022 with the COMPASS spectrometer using 160 GeV muon beam at CERN, statistically balancing existing proton targets. first from about two-thirds new have total uncertainties smaller by up to factor three compared previous deuteron measurements. Using all results, both transversity...
A set of measurements azimuthal asymmetries in the production pairs identified hadrons deep-inelastic scattering muons on transversely polarised 6LiD (deuteron) and NH3 (proton) targets is presented. All available data collected years 2003–2004 2007/2010 with COMPASS spectrometer using a muon beam 160GeV/c at CERN SPS were analysed. The provide access to transversity distribution functions via fragmentation function that principle may be independently obtained from e+e− annihilation data....
Abstract We report on a measurement of Spin Density Matrix Elements (SDMEs) in hard exclusive $$\rho ^0$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mi>ρ</mml:mi> <mml:mn>0</mml:mn> </mml:msup> </mml:math> meson muoproduction at COMPASS using 160 GeV/ c polarised $$ \mu ^{+}$$ <mml:mi>μ</mml:mi> <mml:mo>+</mml:mo> and ^{-}$$ <mml:mo>-</mml:mo> beams impinging liquid hydrogen target. The covers the kinematic range 5.0 $$c^2$$ <mml:mi>c</mml:mi>...
New results are presented on a high-statistics measurement of Collins and Sivers asymmetries charged hadrons produced in deep inelastic scattering muons transversely polarised $^6$LiD target. The data were taken 2022 with the COMPASS spectrometer using 160 \gevv\ muon beam at CERN, balancing existing proton targets. first from about two-thirds new have total uncertainties smaller by up to factor three compared previous deuteron measurements. Using all results, both transversity distribution...
The COMPASS Collaboration performed measurements of the Drell-Yan process in 2015 and 2018 using a 190 GeV/c π^{-} beam impinging on transversely polarized ammonia target. Combining data both years, we present final results amplitudes five azimuthal modulations, which correspond to transverse-spin-dependent asymmetries (TSAs) dimuon production cross section. Three them probe nucleon leading-twist Sivers, transversity, pretzelosity transverse-momentum dependent (TMD) parton distribution...
Hard Exclusive Meson Production (HEMP) and Deeply Virtual Compton Scattering (DVCS) are very promising reactions to access Generalized Parton Distributions (GPDs). Such exclusive measurements were performed at COMPASS in 2016 2017 the M2 beamline of CERN SPS using 160 GeV muon beam scattering off a 2.5 m long liquid hydrogen target surrounded by barrel-shaped time-of-flight system detect recoiling proton. The scattered muons produced real photons detected spectrometer, which was supplemented...
We report on a measurement of Spin Density Matrix Elements (SDMEs) in hard exclusive $ω$ meson muoproduction the proton at COMPASS using 160 GeV/$c$ polarised $ μ^{+}$ and μ^{-}$ beams impinging liquid hydrogen target. The covers range 5.0 GeV/$c^2$ $< W <$ 17.0 GeV/$c^2$, with average kinematics $\langle Q^{2} \rangle=$ 2.1 (GeV/$c$)$^2$, \rangle= 7.6$ p^{2}_{\rm T} \rangle = 0.16$ (GeV/$c$)$^2$. Here, $Q^2$ denotes virtuality exchanged photon, $W$ mass final hadronic system $p_T$...
The COMPASS Collaboration performed measurements of the Drell-Yan process in 2015 and 2018 using a 190 GeV/c $\pi^{-}$ beam impinging on transversely polarised ammonia target. Combining data both years, we present final results amplitudes five azimuthal modulations dimuon production cross section. Three these transverse-spin-dependent asymmetries (TSAs) probe nucleon leading-twist Sivers, transversity, pretzelosity transverse-momentum dependent (TMD) parton distribution functions (PDFs)....