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相关论文: Antiangular Ordering of Gluon Radiation in QCD Med…

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Medium-induced gluon radiation gives rise to the strong energy-loss observed in single-hadron spectra in heavy-ion collisions. Its angular structure, leading e.g. to intra-jet correlations, is only known for the one-gluon inclusive case. In…

高能物理 - 唯象学 · 物理学 2011-04-07 K. Tywoniuk

In heavy-ion collisions, an abundant production of high-energy QCD jets allows to study how these multiparticle sprays are modified as they pass through the quark-gluon plasma. In order to shed new light on this process, we compute the…

高能物理 - 唯象学 · 物理学 2015-12-24 Jorge Casalderrey-Solana , Daniel Pablos , Konrad Tywoniuk

We investigate soft gluon radiation off a quark-antiquark antenna in both color singlet and octet configurations traversing a dense medium. We demonstrate that, in both cases, multiple scatterings lead to a gradual decoherence of the…

高能物理 - 唯象学 · 物理学 2015-05-27 Y. Mehtar-Tani , C. A. Salgado , K. Tywoniuk

Radiative interferences in the multi-parton shower is the building block of QCD jet physics in vacuum. The presence of a hot medium made of quarks and gluons is expected to alter this interference pattern. To study these effects, we derive…

高能物理 - 唯象学 · 物理学 2012-04-26 Yacine Mehtar-Tani , Carlos A. Salgado , Konrad Tywoniuk

In this contribution, the one-gluon radiation spectrum off a massive quark-antiquark ($q {\bar q}$) antenna traversing a QCD medium is calculated in the eikonal approximation. The interference between emissions from the quark and the…

高能物理 - 唯象学 · 物理学 2015-05-30 Néstor Armesto , Hao Ma , Yacine Mehtar-Tani , Carlos A. Salgado , Konrad Tywoniuk

We compute the color coherence effects for soft gluon radiation off antennas containing heavy quarks in the presence of a QCD medium - in color singlet, triplet or octet global states. This work completes the studies of antenna radiation…

高能物理 - 唯象学 · 物理学 2014-10-15 Manoel R. Calvo , Manoel R. Moldes , Carlos A. Salgado

The medium-induced one-gluon radiation spectrum off a massive quark-antiquark ($q {\bar q}$) antenna traversing a colored QCD medium is calculated in this contribution. The gluon spectrum off the antenna computed at first order in the…

高能物理 - 唯象学 · 物理学 2015-05-28 Néstor Armesto , Hao Ma , Yacine Mehtar-Tani , Carlos A. Salgado , Konrad Tywoniuk

Studies of medium-induced QCD radiation usually rely on the calculation of single-gluon radiation spectrum off an energetic parton traversing an extended colored medium. Recently, the importance of interference effects between emitters in…

高能物理 - 唯象学 · 物理学 2015-05-30 Néstor Armesto , Hao Ma , Yacine Mehtar-Tani , Carlos A. Salgado , Konrad Tywoniuk

Interferences between different emitters in the multi-parton shower is the building block of QCD jet physics in vacuum. The presence of a hot medium made of quarks and gluons is expected to alter this interference pattern. To study such…

高能物理 - 唯象学 · 物理学 2012-09-24 Néstor Armesto , Hao Ma , Mauricio Martinez , Yacine Mehtar-Tani , Carlos A. Salgado

The color coherence effects in the medium modification to the initial state radiation are studied via a simple setup which allows these effects to be pronounced. The medium-induced gluon radiation spectrum off a hard quark which suffers a…

高能物理 - 唯象学 · 物理学 2012-11-08 Néstor Armesto , Hao Ma , Mauricio Martínez , Yacine Mehtar-Tani , Carlos A. Salgado

We report on recent studies of the phenomenon of color decoherence in jets in QCD media. The effect is most clearly observed in the radiation pattern of a quark-antiquark antenna, created in the same quantum state, traversing a dense color…

高能物理 - 唯象学 · 物理学 2015-05-28 Yacine Mehtar-Tani , Carlos A. Salgado , Konrad Tywoniuk

We study a system in which a quark-antiquark antenna emits a hard gluon in a medium, and an extra very soft emission afterwards. Considering the coherence effects in terms of the survival probability, we can describe the interaction of the…

高能物理 - 唯象学 · 物理学 2017-10-18 Fabio Dominguez , Carlos A Salgado , Victor Vila

As a step towards understanding the in-medium evolution of a hard jet, we consider the interference pattern for the medium induced gluon radiation produced by a color singlet quark-antiquark antenna embedded in a QCD medium with size L. We…

高能物理 - 唯象学 · 物理学 2015-05-28 Jorge Casalderrey-Solana , Edmond Iancu

We consider the interference pattern for the medium-induced gluon radiation produced by a color singlet quark-antiquark antenna embedded in a QCD medium with size $L$ and `jet quenching' parameter $\hat q$. Within the BDMPS-Z regime, we…

高能物理 - 唯象学 · 物理学 2015-05-28 Jorge Casalderrey-Solana , Edmond Iancu

We revisit the calculation of the soft gluon emission probability off a colour-singlet $q\bar q$ system that evolves in a quark-gluon plasma. The $q\bar q$ antenna is created in the presence of a medium and then emits a soft gluon outside.…

高能物理 - 唯象学 · 物理学 2024-11-01 Samuel Abreu , Xoán Mayo López , Guilherme Milhano , Alba Soto-Ontoso

We study the production of a quark-antiquark antenna in the presence of a dense and anisotropic QCD medium. We assume the antenna to originate from an unpolarized gluon state, and consider both massless and massive final states. The medium…

高能物理 - 唯象学 · 物理学 2024-07-09 João Barata , Carlos A. Salgado , João M. Silva

We compute the spectrum of gluons emitted by a highly energetic quark inside a flowing QCD medium, focusing on the soft gluon limit at first order in the opacity expansion. Specifically, we derive the leading energy-suppressed corrections…

高能物理 - 唯象学 · 物理学 2024-06-24 Matvey V. Kuzmin , Xoán Mayo López

We investigate the color coherence pattern between initial and final state radiation in the presence of a QCD medium. We derive the medium-induced gluon spectrum of an "asymptotic" parton which suffers a hard scattering and subsequently…

高能物理 - 唯象学 · 物理学 2012-10-03 Néstor Armesto , Hao Ma , Mauricio Martinez , Yacine Mehtar-Tani , Carlos A. Salgado

We calculate the spectrum of gluons sourced by the branching of an energetic quark in the presence of an inhomogeneous QCD medium, focusing on the soft radiation limit. We take into account multiple soft interactions between the partons and…

高能物理 - 唯象学 · 物理学 2024-02-06 João Barata , Xoán Mayo López , Andrey V. Sadofyev , Carlos A. Salgado

We provide a complete description of the angular distribution of gluons in a medium-induced QCD cascade. We identify two components in the distribution, a soft component dominated by soft multiple scatterings, and a hard component dominated…

高能物理 - 唯象学 · 物理学 2015-05-20 Jean-Paul Blaizot , Leonard Fister , Yacine Mehtar-Tani
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