“…These distributions agree with predictions from dimensional counting rules, if parton scattering via vector gluon exchange is assumed for the large p/sub T/ process. …”
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“…This single-entity hypothesis can also explain proton fragmentation. The gluon contribution (triquark fragmentation) is significant in the proton distribution and accounts for the difference in pi /sup +/ and pi /sup -/ distributions. …”
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Enlace del recurso

“…Intrinsic (primordial) transverse momenta of quarks and gluons are calculated as well as those arising from recoil (bremsstrahlung) effects, using only the well-known parton distributions as input. …”
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Enlace del recurso

“…Bottomonia are important probes of the quark–gluon plasma since they are produced at early times and propagate through the medium, mapping its evolution. …”
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Enlace del recurso

“…Bottomonia are important probes of the quark-gluon plasma since they are produced at early times and propagate through the medium, mapping its evolution. …”
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Enlace del recurso

“…Quark-Gluon Plasma (QGP) is one of the most extreme states of matter which exists only in extraordinary conditions of heavy-ion collisions that can be achieved at particle accelerators. …”
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“…This presentation addresses two of the investigated aspects: inclusive measurements and direct measurements of the gluon polarised PDF, Δg. In the first case, a summary of what constitutes COMPASS legacy is presented. …”
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“…There is an indication of less suppression of $B_{s}^{0}$ comparing to $B^{+}$, which is consistent with the strangeness enhancement in quark-gluon plasma and the recombination production mechanism of $B_{s}^{0}$.…”
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“…Their fast formation and microscopic scale of heavy flavor (HF) probes are ideal for a Quark-Gluon Plasma (QGP) tomography. Besides, the large fraction of energy carried by the measured heavy flavor hadron from the hard process fragmentation also favors a precise study of the partonic density and initial state effects in nucleus. …”
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“…The main goal of the ALICE experiment is to study the physics of strongly interacting matter under extremely high temperature and energy density conditions to investigate the properties of the Quark-Gluon plasma (QGP). The enhanced production of strange hadrons with respect to non-strange particles was historically considered as one of the signatures of QGP formation during the evolution of the system created in heavy-ion collisions. …”
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Enlace del recurso

“…Heavy quarks (charm and beauty) are an effective tool to investigate the properties of the Quark-Gluon Plasma created in heavy-ion collisions as they are produced in initial hard scattering processes and as they experience all the stages of the medium evolution. …”
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Enlace del recurso

“…Further extractions of its properties relative to the Higgs boson, including the production cross section times decay branching ratios for separate Higgs production processes, couplings to bosons and to fermions, and effective couplings to the photon and to the gluon, are all compatible with the expectations for the Standard Model Higgs boson.…”
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“…We consider interference effects in the production via gluon fusion in LHC collisions at 13 TeV and decays into $\gamma \gamma$ and $t {\bar t}$ final states of the putative 750 GeV state(s) $\Phi$, assumed here to be scalar and/or pseudo scalar particle(s). …”
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Enlace del recurso

“…This new state of matter, predicted by a number of models in the context of the Quantum Cromo-Dynamics (QCD), appears to be characterized by the underlying quark and gluon degrees of freedom and it is known as ``Quark-Gluon Plasma'' (QGP). …”
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“…The three-jet topologies correspond to the reaction $e^+e^- \to Z^0 \to q\bar{q}g$, where one of the two quarks radiates a hard gluon. A semi-quantitative study of this system is made of, in particular, the correlations between particles originating from the gluon. …”
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“…The CERN LHC will collide lead ions at $\sqrt{s}=5.5$ TeV per nucleon pair and will provide crucial information about the formation of a quark--gluon plasma at the highest temperatures and densities ever created in the laboratory. …”
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“…Maurice Jacob played a key role in bringing together different groups from the experimental and theoretical nuclear and particle physics communities to initiate an ultrarelativistic heavy-ion collision program at the CERN SPS, in order to search for the quark-gluon plasma. I review the history of this program from its beginnings to the time when the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory (BNL) started operation. …”
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Enlace del recurso

“…The collisions of lead nuclei at energies $\sqrt{s_{_{NN}}}$ = 5.5 TeV, will probe quark and gluon matter at unprecedented values of energy density. …”
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“…Collisions of lead nuclei at energies $\sqrt{s_{_{NN}}}$ = 5.5 TeV, will probe quark and gluon matter at unprecedented values of energy density. …”
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“…ALICE is a dedicated heavy-ion experiment at CERN LHC aiming to study the properties of the quark–gluon plasma. A lead– lead collision might produce several ten thousand new particles. …”
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Enlace del recurso