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4321por CMS Collaboration“…These results show a weaker collective flow associated with charm quarks than with light flavor quarks in high-multiplicity pPb collisions, and may indicate a weaker coupling between heavy quarks and the hypothesised hydrodynamic quark-gluon plasma.…”
Publicado 2018
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4322por Perepelitsa, Dennis“…Because photons do not carry color charge, they are unaffected by the medium, and thus provide information about the momentum, direction, and flavor (quark or gluon) of the associated hard-scattered parton before it begins to shower and become quenched. …”
Publicado 2018
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4323Inclusive $J/\psi$ production at mid-rapidity in Pb-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 5.02 TeVpor Jimenez, Tonatiuh“…Charmonium production is a key observable in the study of the properties of the Quark-Gluon Plasma created in ultrarelativistic heavy-ion collisions. …”
Publicado 2018
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4324por Salvatore, Daniela“…Results are interpreted in terms of the Falkowsky-Ruderman-Volansky-Zupan models where dark photons are generated through the decay of a gluon-fusion Higgs boson to intermediate hidden fermions.…”
Publicado 2018
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4325por Przybycien, Mariusz“…The azimuthal anisotropies of particle yields observed in relativistic heavy-ion collisions have been traditionally considered as a strong evidence of the formation of a de-confined quark-gluon plasma produced in these collisions. However multiple recent measurements from the LHC experiments in $pp$ and $p$+Pb systems show similar features as those observed in Pb+Pb collisions, indicating the possibility of the production of such a de-confined medium also in smaller collision systems. …”
Publicado 2018
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4326por The ATLAS collaboration“…Results are presented for the gluon fusion and vector-boson fusion processes, and for associated production with vector bosons or top quarks. …”
Publicado 2019
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4327por CMS Collaboration“…The decay of the W boson pair is reconstructed in the $\ell \nu \ell ' \nu '$ and $\ell \nu q\bar{q}$ final states. Both gluon fusion and vector boson fusion production of the signal are considered, with a number of hypotheses for their relative contribution investigated. …”
Publicado 2019
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4328
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4329por Jacobs, Ruth Magdalena“…The distinct properties of these b-jets and c-jets can be identified by the ATLAS detector and differentiated with respect to jets initiated by light quarks and gluons, where the algorithms used for tagging such heavy flavour jets will be discussed. …”
Publicado 2019
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4330por Whalen, Kathleen“…Many models of dark matter feature a new particle that mediates the interaction between Standard Model particles and dark matter; this mediator particle could decay to quarks and gluons, producing a dijet resonance signature in the detector. …”
Publicado 2019
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4331por Xiao, Rui“…Due to their large masses, the interactions of heavy quarks with the quark-gluon plasma (QGP) may be different from those of light quarks. …”
Publicado 2019
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4332por Jacobs, Ruth Magdalena“…A new method for a data-based double-$b$-tagging calibration using gluon splitting ($g\rightarrow b\bar{b}$) events is presented for the first time for the ATLAS experiment.…”
Publicado 2019
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4333por The ATLAS collaboration“…The $I_\mathrm{AA}$ is observed to be significantly suppressed at large hadron $p_\mathrm{T}$ or $x_\mathrm{hZ}$, presumably due to interaction of the hard-scattered partons with a hot and dense quark-gluon plasma. The $I_\mathrm{AA}$ results are compared to the predictions of jet modification in several Monte Carlo generators and theoretical calculations.…”
Publicado 2019
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4334por Rybar, Martin“…Furthermore, it is expected that light partons lose energy dominantly via gluon bremsstrahlung, while in the case of heavy-quark-initiated-jets, collisional energy loss may play a more important role. …”
Publicado 2019
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4335por The ATLAS collaboration“…In heavy-ion collisions, the long-range correlations are known to arise from the collective dynamics of the produced quark-gluon plasma (QGP). The similarity between the $pp$ and heavy-ion measurements raises the possibility that a tiny droplet of the QGP is produced even in $pp$ collisions. …”
Publicado 2020
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4336por Ouellette, Jeff“…Measurements of hard-scattered partons produced in conjunction with a high-pT photon or Z boson offer a discerning way to study the quark gluon plasma (QGP) created in ultrarelativistic nucleus-nucleus collisions. …”
Publicado 2020
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4337por Catalano, Fabio“…--HTML-->Heavy flavours are effective probes of the hot and dense matter, the Quark-Gluon plasma (QGP), produced in ultra-relativistic heavy-ion collisions. …”
Publicado 2020
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4338por Tu, Zhoudunming“…It has been recently suggested that the exclusive $J/\psi$ production of electron-deuteron scattering at the Electron-Ion Collider (EIC) would provide new insights into the SRCs, in particular from the aspect of the underlying quark-gluon dynamics. In the absence of electron-nucleus data from an EIC, data from deuteron-gold (d+Au) ultra-peripheral collisions (UPCs) recorded by the STAR detector at the Relativistic Heavy Ion Collider can be used as a proxy to test various techniques and hypotheses. …”
Publicado 2020
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4339por Yao, Xiaojun“…--HTML-->The production of heavy quarkonium in heavy ion collisions has been used as an important probe of the quark-gluon plasma. To describe the in-medium evolution of quarkonium, one has to take into account plasma screening effects and recombination in a consistent way. …”
Publicado 2020
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4340por Krizek, Filip“…--HTML-->Jet quenching is a possible consequence of the formation of a quark-gluon plasma (QGP) in collision systems, but to date no significant jet quenching has been observed in small systems. …”
Publicado 2020
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