“…We will focus on the computation of scattering amplitudes and will present a new result for the full six gluon amplitude at finite coupling. …”
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“…Mass and binding energy are expected to be the same in nuclei and anti-nuclei as long as the CPT invariance holds for the nuclear force, a remnant of the underlying strong interaction between quarks and gluons. The measurements of the difference in mass-to-charge ratio between deuteron and anti-deuteron, and 3He and 3\bar{He} nuclei performed with the ALICE detector at the LHC is presented. …”
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“…Baryon number density perturbations offer a possible route to experimentally measure baryon number susceptibilities and heat conductivity of the quark gluon plasma. We study the fluid dynamical evolution of local and event-by-event fluctuations of baryon number density, flow velocity and energy density on top of a (generalized) Bjorken expansion. …”
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“…These include event-by-event pile-up subtraction algorithms for jets and missing ET, jet substructure, quark-gluon discrimination, and jet tagging tools for the identification of boosted heavy particles. …”
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“…Measurements of the inclusive jet and photon cross sections are standard candles and can be useful to constrain the medium and high x gluon densities. Precision electroweak studies performed by ATLAS can be limited by the current knowledge on the proton structure. …”
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“…The searches cover a wide range of Higgs boson production modes namely gluon fusion, vector boson fusion and vector boson associated production. …”
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“…The signal-strenght of $4\ell$ production induced by gluon-fusion for $m(4\ell)\geq 180$ GeV is presented. …”
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“…An important part of the online event selection is the ability to distinguish between jets arising from heavy-flavour quarks (b- and c-jets) and light jets (jets from u-, d-, s- and gluon jets) in real-time. This is essential for many physics analysis that include processes with large jet multiplicity and b-quarks in the final state. …”
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“…An important part of the online event selection is the ability to distinguish between jets arising from heavy-flavour quarks (b- and c-jets) and light jets (jets from u-, d-, s- and gluon jets) in real-time. This is essential for many physics analysis that include processes with large jet multiplicity and b-quarks in the final state. …”
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“…The NA61/SHINE experiment at CERN is searching for the critical point in phase transition between quark-gluon plasma and hadronic matter. To do so we use the most precise apparatus - Time Projection Chamber. …”
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“…An analysis of the reconstructed transverse mass and missing transverse energy is performed in different event categories, and limits are set on the production cross section of a heavy scalar of variable width in the gluon-fusion and vector-boson fusion production modes. …”
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“…The data are used to determine 95\% confidence level upper limits on the product of production cross-sections and branching fractions for $m_{A}$ = [200,2000] GeV assuming gluon-fusion or b-quark-associated exclusive production. …”
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“…The exploration of properties of an extreme state of matter, the Quark--Gluon Plasma, has broken new ground with the recent Run 2 operation of the Large Hadron Collider with heavy-ion collisions at the highest energy to date. …”
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“…Measurements of the inclusive jet and photon cross sections are standard candles and constrain the medium and high x gluon densities. New precise measurements of inclusive photon and jet cross sections at 8 TeV are presented and compared to various PDF predictions.…”
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“…The production of prompt isolated photons at hadron colliders provides a stringent test of perturbative QCD and can be used to probe the gluon density function of the proton. The ATLAS collaboration has performed precise measurements of the inclusive production of isolated prompt photons in 20.2 /fb of data collected at a center­of­mass energy of 8 TeV and in 6.4 /pb of data collected at a center­of­mass energy of 13 TeV, differential in both rapidity and the photon transverse momentum. …”
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“…These signatures include generic quark and gluon jets as well as jets originating from b-quarks or tau leptons decaying hadronically. …”
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“…Limits are set for BSM particles such as topcolor-assisted technicolor $Z'$ , Kaluza-Klein (K-K) gluons $g_{KK}$ and K-K excitations of graviton $G_{KK}$ in the TC Randall-Sundrum (R-S) model of extra dimensions. …”
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“…Beyond jets formed from the hadronization of quarks and gluons, hadronic decays of highly boosted heavy particles, such as top quarks or Z, W or H bosons, in a single fat jet is gaining importance in the search for new physics at the highest possible energies. …”
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“…Models of Randall-Sundrum Kaluza-Klein gluon production as well as narrow, wide, and extra-wide Z' boson models are considered.…”
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Enlace del recurso

“…An important part of the online event selection is the ability to distinguish between jets arising from heavy-flavour quarks (b- and c-jets) and light jets (jets from u-, d-, s- and gluon jets) in real-time. This is essential for many physics analysis that include processes with large jet multiplicity and b-quarks in the final state. …”
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