“…This should improve the understanding of initial conditions of nuclear collisions, hydrodynamical behavior of quark-gluon plasma and parton energy loss. New ATLAS measurements of differential and global Fourier harmonics of charged particles (vn) in 5.02 TeV Pb+Pb and 5.44 TeV Xe+Xe collisions in a wide range of transverse momenta, pseudorapidity (|η|<2.5) and collision centrality are presented. …”
Enlace del recurso

“…--HTML--><p><span style="color:#4b4b4b">New resonances decaying into pairs of quarks or gluons appear in a variety of new physics models from simple gauge extensions of the standard model to Grand Unified Theories. …”
Enlace del recurso

“…The results indicate substantial modification to the charm and bottom quark angular distributions via interactions in the quark-gluon plasma produced in these Pb+Pb collisions, with smaller modifications for the bottom quarks as expected theoretically due to their larger mass.…”
Enlace del recurso

“…--HTML-->Measurements of heavy-flavor hadron production and elliptic flow ($v_{2}$) provide unique and indispensable information for understanding the properties of the quark-gluon plasma. Recent STAR measurements indicate that in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}=$ 200 GeV $D^{0}$ mesons develop large $v_{2}$ similarly as light-favor hadrons, implying that charm quarks interact strongly with the thermalized medium at the top RHIC energy. …”
Enlace del recurso

“…In the first microseconds of the Big Bang, all known matter in the Universe was in a state of Quark-Gluon Plasma (QGP). The primary purpose of heavy ion collisions is to investigate QGP’s formation and properties. …”
Enlace del recurso

“…At first, a measurement of signal strengths of the observed Higgs boson results in an observed (expected) significance of 6.1 (5.0)$\sigma$ for gluon fusion and 1.9 (3.8)$\sigma$ for vector boson fusion production channels of the Higgs boson to ensure a good expected sensitivity to the observed Higgs boson. …”
Enlace del recurso

“…This thesis describes a search for gluino, which is the super-partner of gluon at the LHC ATLAS experiment. In the $pp$ collision, the cross section of gluino is relatively large due to strong interaction and the gluino search is one of the most important physics programs. …”
Enlace del recurso

“…The latter provides a potentially sensitive electromagnetic probe of the quark-gluon plasma. This talk presents a series of measurements of such processes performed by the ATLAS Collaboration. …”
Enlace del recurso

“…The latter provides a potentially sensitive electromagnetic probe of the quark gluon plasma. This talk presents a series of measurements of such processes performed by the ATLAS Collaboration. …”
Enlace del recurso

“…Heavy flavour hadron production provides information about the transport properties and the microscopic structure of the quark-gluon plasma created in ultra-relativistic heavy-ion collisions. …”
Enlace del recurso

“…Heavy ion collisions at the LHC provide a tool to study the phase transition from hadronic matter to a deconfined phase of quarks and gluons. We investigated whether flavor hierarchy in the QCD transition crossover region could lead to clustering of strangeness. …”
Enlace del recurso

“…For the first study, the two W-bosons are produced in association with no jets as a result of interactions between quarks and gluons. Once produced, the W-boson pair decays leptonically ($W^{+}W^{-} \rightarrow e^{+} \mu^{-} \nu_{e} \bar{\nu}_{\mu}$ or $W^{+}W^{-} \rightarrow \mu^{+} e^{-} \nu_{\mu} \bar{\nu}_{e}$). …”
Enlace del recurso

“…Finally, a chapter dedicated to the first original analysis in my PhD, the measurement of a Sivers-like asymmetry in the J/ψ production in SIDIS, which is related to the gluon Sivers function, is included as well.…”
Enlace del recurso

“…The production of J$/\psi$ mesons serves as an important probe of the quark-gluon plasma (QGP) formed in heavy-ion collisions. …”
Enlace del recurso

“…The $z_r$ distributions enable extraction of the parton-to-subjet fragmentation function and allow for tests of the universality of jet fragmentation functions in the quark–gluon plasma (QGP). We find indications that there is a turnover in the ratio between the distributions in Pb–Pb and pp collisions as $z_r \rightarrow 1$, exposing qualitatively new possibilities to disentangle competing jet quenching mechanisms. …”
Enlace del recurso

“…The measurement of in-jet fragmentation can provide valuable information for constraining gluon-to-hadron fragmentation functions, and this measurement provides a unique insight into intermediate transverse momentum. …”
Enlace del recurso

“…More importantly, those measurements could reveal the mass dependence of parton energy loss and quark diffusion in the Quark-Gluon Plasma (QGP). In this talk, we report the first measurement of the azimuthal anisotropy of nonprompt $D^0$ in PbPb collisions at $\sqrt{s_{_{\mathrm{NN}}}}=$ 5.02 TeV. …”
Enlace del recurso
Enlace del recurso

“…Heavy quarks are primarily produced via initial hard scatterings, and thus carry information about the early stages of the Quark-Gluon Plasma (QGP). Measurements of the azimuthal anisotropy of the final-state heavy flavor hadrons provide information about the initial collision geometry, its fluctuation, and more importantly, the mass dependence of energy loss in QGP. …”
Enlace del recurso

“…A Large Ion Collider Experiment (ALICE) at the Large Hadron Collider (LHC) in the European Organization for Nuclear Research (CERN) laboratory was built to study heavy-ion collisions and the properties of the quark-gluon plasma. The Online and Offline (O2) software systems of the experiment generate a huge amount of log data that is used for monitoring to detect a potential system failure. …”
Enlace del recurso
Enlace del recurso

“…A relatively large mass of b quarks makes them a convenient tool to study the quark-gluon plasma produced in ultra-relativistic heavy-ion collisions. …”
Enlace del recurso