M. Maćkowiak-Pawłowska
A5079473864- High-Energy Particle Collisions Research
- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Neutrino Physics Research
- Scientific Research and Discoveries
- Dark Matter and Cosmic Phenomena
- Theoretical and Computational Physics
- Advanced Thermodynamics and Statistical Mechanics
- Nuclear reactor physics and engineering
- Particle accelerators and beam dynamics
- Particle Detector Development and Performance
- Astrophysics and Cosmic Phenomena
- Particle Accelerators and Free-Electron Lasers
- Nuclear physics research studies
- Statistical Mechanics and Entropy
- Stochastic processes and statistical mechanics
- Cold Atom Physics and Bose-Einstein Condensates
- Language and Culture
- Radioactive Decay and Measurement Techniques
- Non-Destructive Testing Techniques
- Management and Organizational Practices
- Diverse Scientific and Engineering Research
- Superconducting Materials and Applications
- Education and Cultural Studies
- Advanced Welding Techniques Analysis
Warsaw University of Technology
2016-2025
European Organization for Nuclear Research
2021
University of Geneva
2017-2019
Goethe University Frankfurt
2012-2015
Sofia University "St. Kliment Ohridski"
2013
University of Washington Applied Physics Laboratory
2013
Frankfurt Institute for Advanced Studies
2013
National Institute for Subatomic Physics
2011
Interaction cross sections and charged pion spectra in p+C interactions at 31 GeV/c were measured with the large acceptance NA61/SHINE spectrometer CERN SPS. These data are required to improve predictions of neutrino flux for T2K long baseline oscillation experiment Japan. A set collected during first run 2007 an isotropic graphite target a thickness 4% nuclear interaction length was used analysis. The inelastic production 257.2 +- 1.9 8.9 mb 229.3 9.0 mb, respectively. Inclusive negatively...
NA61/SHINE (SPS Heavy Ion and Neutrino Experiment) is a multi-purpose experimental facility to study hadron production in hadron-proton, hadron-nucleus nucleus-nucleus collisions at the CERN Super Proton Synchrotron. It recorded first physics data with beams 2009 ion (secondary 7Be beams) 2011. has greatly profited from long development of proton sources accelerator chain as well H2 beamline North Area. The latter recently been modified also serve fragment separator needed produce Be for...
Measurements of inclusive spectra and mean multiplicities $$\pi ^\pm $$ , K $$^\pm p $${\bar{\text {p}}}$$ produced in inelastic + interactions at incident projectile momenta 20, 31, 40, 80 158 $$\text{ GeV }/c$$ ( $$\sqrt{s} = 6.3, 7.7, 8.8, 12.3 17.3 }$$ respectively) were performed the CERN Super Proton Synchrotron using large acceptance NA61/SHINE hadron spectrometer. Spectra are presented as function rapidity transverse momentum compared to predictions current models. The measurements...
Measurements of hadron production in p + C interactions at 31 GeV/c are performed using the NA61/SHINE spectrometer CERN SPS. The analysis is based on full set data collected 2009 a graphite target with thickness 4 % nuclear interaction length. Inelastic and cross sections as well spectra $$\pi ^{\pm }$$ , $$K^{\pm p, $$K^0_S$$ $$\varLambda $$ measured high precision. These measurements essential for improved calculations initial neutrino fluxes T2K long-baseline oscillation experiment...
Spectra of positively charged kaons in p+C interactions at 31 GeV/c were measured with the NA61/SHINE spectrometer CERN SPS. The analysis is based on full set data collected 2007 a graphite target thickness 4% nuclear interaction length. Interaction cross sections and pion spectra already using same data. These new measurements combination published ones are required to improve predictions neutrino flux for T2K long baseline oscillation experiment Japan. In particular, knowledge kaon...
Production of $d,\phantom{\rule{0.16em}{0ex}}t$, and $^{3}\mathrm{He}$ nuclei in central $\mathrm{Pb}+\mathrm{Pb}$ interactions was studied at five collision energies ($\sqrt{{s}_{NN}}=6.3$, 7.6, 8.8, 12.3, 17.3 GeV) with the NA49 detector CERN Super Proton Synchrotron. Transverse momentum spectra, rapidity distributions, particle ratios were measured. Yields are compared to predictions statistical models. Phase-space distributions light discussed those protons context a coalescence...
The yields of (anti)protons were measured by the NA49 Collaboration in centrality-selected Pb $+$ collisions at $40A$ and $158A$ GeV. Particle identification was obtained laboratory momentum range from 5 to 63 GeV$/c$ measuring energy loss $dE/dx$ time projection chamber detector gas. corresponding rapidity coverage extends 1.6 units midrapidity into forward hemisphere. Transverse-mass spectra, dependences average transverse mass, density distributions studied as a function collision...
We present experimental results on inclusive spectra and mean multiplicities of negatively charged pions produced in inelastic p+p interactions at incident projectile momenta 20, 31, 40, 80 158 GeV/c ( $$\sqrt{s} = $$ 6.3, 7.7, 8.8, 12.3 17.3 GeV, respectively). The measurements were performed using the large acceptance NA61/SHINE hadron spectrometer CERN super proton synchrotron. Two-dimensional are determined terms rapidity transverse momentum. Their properties such as width distributions...
Recently, two strongly intensive quantities, $\ensuremath{\Delta}[A,B]$ and $\ensuremath{\Sigma}[A,B]$, designed for the study of event-by-event fluctuations in high-energy collisions were introduced. They are defined terms extensive event observables $A$ $B$. In this paper a special normalization $\ensuremath{\Sigma}[A,B]$ fluctuation measures is proposed. It ensures that they dimensionless yields common scale required quantitative comparison different, general dimensional, quantities....
We look for fluctuations expected the QCD critical point using an intermittency analysis in transverse momentum phase space of protons produced around midrapidity 12.5 % most central C+C, Si+Si and Pb+Pb collisions at maximum SPS energy 158A GeV. find evidence power-law data. The fitted exponent $$\phi _{2} = 0.96^{+0.38}_{-0.25}\text { (stat.)}$$ $$\pm $$ $$0.16\text (syst.)}$$ is consistent with value fluctuations. Power-law had previously also been observed low-mass $$\pi ^+ \pi ^-$$...
Measurements of multiplicity and transverse momentum fluctuations charged particles were performed in inelastic p+p interactions at 20, 31, 40, 80, 158 $$\text{ GeV }\!/\!c$$ beam momentum. Results for the scaled variance distribution three strongly intensive measures $$\varDelta [P_{T},N]$$ , $$\varSigma $$\varPhi _{p_T}$$ are presented. For first time results on fully corrected experimental biases. The significantly deviate from expectations independent particle production. They also...
Abstract The NA61/SHINE experiment at the CERN Super Proton Synchrotron studies onset of deconfinement in strongly interacting matter through a beam energy scan particle production collisions nuclei varied sizes. This paper presents results on inclusive double-differential spectra, transverse momentum and rapidity distributions mean multiplicities $$\pi ^\pm $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mi>π</mml:mi> <mml:mo>±</mml:mo> </mml:msup> </mml:math> ,...
Strong interactions preserve an approximate isospin symmetry between up (u) and down (d) quarks, part of the more general flavor symmetry. In case K meson production, if this were exact, it would result in equal numbers charged (K+ K−) neutral (K0 $${\overline{K}}^{0}$$ ) mesons produced collisions isospin-symmetric atomic nuclei. Here, we report results on relative abundance over production argon scandium nuclei at a center-of-mass energy 11.9 GeV per nucleon pair. We find that K+ K−...
Production of the ${K}^{*}{(892)}^{0}$ and ${\overline{K}}^{*}{(892)}^{0}$ resonances was studied via their ${K}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ ${K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$ decay modes in central $\mathrm{Pb}+\mathrm{Pb}$, $\mathrm{Si}+\mathrm{Si}$, $\mathrm{C}+\mathrm{C}$, inelastic $p+p$ collisions at 158$A$ GeV($\sqrt{{s}_{NN}}=17.3$ GeV) with NA49 detector CERN SPS. Transverse momentum rapidity distributions were measured total yields estimated. The yield...
Measurements of particle emission from a replica the T2K 90 cm-long carbon target were performed in NA61/SHINE experiment at CERN SPS, using data collected during high-statistics run 2009. An efficient use long-target measurements for neutrino flux predictions requires dedicated reconstruction and analysis techniques. Fully-corrected differential yields $$\pi ^\pm $$ -mesons surface incoming 31 GeV/c protons are presented. A possible strategy to implement these results into beam is discussed...
Measurements of the $\pi^{\pm}$, $K^{\pm}$, and proton double differential yields emitted from surface 90-cm-long carbon target (T2K replica) were performed for incoming 31 GeV/c protons with NA61/SHINE spectrometer at CERN SPS using data collected during 2010 run. The $\pi^{\pm}$ measured increased precision compared to previously published results, while $K^{\pm}$ obtained first time. A strategy dealing dependence results on beam profile is proposed. purpose these measurements reduce...
Abstract This paper reports measurements of two-pion femtoscopic correlations in Be+Be collisions at a beam momentum 150 $$A\,\hbox {GeV}\!/\!c$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>A</mml:mi> <mml:mspace /> <mml:mtext>GeV</mml:mtext> <mml:mo>/</mml:mo> <mml:mi>c</mml:mi> </mml:mrow> </mml:math> (energy available the center-of-mass system for nucleon pair $$\sqrt{s_{\text {NN}}} = 16.84$$ <mml:msqrt> <mml:msub> <mml:mi>s</mml:mi>...
Measurements of charged pion and kaon production are presented in centrality selected Pb+Pb collisions at 40A GeV 158A beam energy as well semi-central C+C Si+Si interactions GeV. Transverse mass spectra, rapidity spectra total yields determined a function centrality. The system-size dependence relative strangeness nucleus-nucleus derived from the data here published for energy. At both energies steep increase with is observed small systems followed by weak rise or even saturation higher...
Spectra of K0S mesons and Lambda hyperons were measured in p+C interactions at 31 GeV/c with the large acceptance NA61/SHINE spectrometer CERN SPS. The data collected an isotropic graphite target a thickness 4% nuclear interaction length. Interaction cross sections, charged pion spectra, kaon spectra previously using same set. Results on production serve as reference for understanding enhancement strangeness nucleus-nucleus collisions. Moreover, they provide important input improvement...
We present a measurement of the momentum spectra ${\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}$, ${\mathrm{K}}^{\ifmmode\pm\else\textpm\fi{}}$, ${\mathrm{p}}^{\ifmmode\pm\else\textpm\fi{}}$, $\mathrm{\ensuremath{\Lambda}}$, $\overline{\mathrm{\ensuremath{\Lambda}}}$, and ${\mathrm{K}}_{\mathrm{S}}^{0}$ produced in interactions negatively charged pions with carbon nuclei at beam momenta 158 $350\text{ }\text{ }\mathrm{GeV}/c$. The total production cross sections are measured as well....
Event-by-event fluctuations of the chemical composition hadronic final state relativistic heavy-ion collisions carry valuable information on properties strongly interacting matter produced in collisions. However, experiments incomplete particle identification distorts observed fluctuation signals. The effect is quantitatively studied and a new technique for measuring fluctuations, identity method, proposed. method fully eliminates identification. application to experimental data explained.
A novel approach, the identity method, was used for particle identification and study of fluctuations yield ratios in Pb + collisions at CERN Super Proton Synchrotron (SPS). This procedure allows one to measure moments multiplicity distributions protons ($p$), kaons ($K$), pions ($\ensuremath{\pi}$), electrons ($e$) case incomplete identification. Using these excitation function fluctuation ${\ensuremath{\nu}}_{\mathrm{dyn}}[A,B]$ measured, with $A$ $B$ denoting different types. The obtained...