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Probing jet medium interactions via $Z$+jet momentum imbalances
arXiv: 2001.07606
handle: 11582/324088
AbstractDifferent types of high energy hard probes are used to extract the jet transport properties of the Quark-Gluon Plasma created in heavy-ion collisions, of which the heavy boson tagged jets are undoubtedly the most sophisticated due to its clean decay signature and production mechanism. In this study, we used the resummation improved pQCD approach with high order correction in the hard factor to calculate the momentum ratio $$x_J$$ x J distributions of Z and Higgs (H) tagged jets. We found that the formalism can provide a good description of the 5.02 TeV pp data. Using the BDMPS energy loss formalism, along with the OSU 2 + 1D hydro to simulate the effect of the medium, we extracted the value of the jet transport coefficient to be around $${\hat{q}}_0=4\sim 8~\text {GeV}^2/\text {fm}$$ q ^ 0 = 4 ∼ 8 GeV 2 / fm by comparing with the Z + jet PbPb experimental data. The H + jet $$x_J$$ x J distribution were calculated in a similar manner in contrast and found to have a stronger Sudakov effect as compared with the Z + jet distribution. This study uses a clean color-neutral boson as trigger to study the jet quenching effect and serves as a complimentary method in the extraction of the QGP’s transport coefficient in high energy nuclear collisions.
- INSTITUT POLYTECHNIQUE DE PARIS France
- French National Centre for Scientific Research France
- Fondazione Bruno Kessler Italy
- École Polytechnique France
- Central China Normal University China (People's Republic of)
perturbation theory [quantum chromodynamics], heavy [boson], heavy ion: scattering, energy loss, nucleus: energy, FOS: Physical sciences, QC770-798, Astrophysics, High Energy Physics - Phenomenology (hep-ph), scattering [heavy ion], energy [nucleus], Nuclear and particle physics. Atomic energy. Radioactivity, transport theory, quantum chromodynamics: perturbation theory, numerical calculations, quenching [jet], quark gluon: plasma, energy: high, plasma [quark gluon], QB460-466, jet: momentum, High Energy Physics - Phenomenology, boson: heavy, resummation, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], effect: Sudakov, high [energy], jet: quenching, Sudakov [effect], momentum [jet]
perturbation theory [quantum chromodynamics], heavy [boson], heavy ion: scattering, energy loss, nucleus: energy, FOS: Physical sciences, QC770-798, Astrophysics, High Energy Physics - Phenomenology (hep-ph), scattering [heavy ion], energy [nucleus], Nuclear and particle physics. Atomic energy. Radioactivity, transport theory, quantum chromodynamics: perturbation theory, numerical calculations, quenching [jet], quark gluon: plasma, energy: high, plasma [quark gluon], QB460-466, jet: momentum, High Energy Physics - Phenomenology, boson: heavy, resummation, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], effect: Sudakov, high [energy], jet: quenching, Sudakov [effect], momentum [jet]
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).1 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Average influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Average
