Guardado en:
| Autor principal: | |
|---|---|
| Formato: | Preprint |
| Publicado: |
2024
|
| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2403.13928 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866910377145532416 |
|---|---|
| author | Pani, Tanmay |
| author_facet | Pani, Tanmay |
| contents | Jets from early stages of heavy-ion collisions undergo modified showering in quark-gluon plasma (QGP) relative to vacuum due to jet-medium interactions, which can be measured using observables like differential jet shape and generalized angularities. Differential jet shape ($ρ(\mathbf{R})$) encodes radially differential information about jet broadening and has shown an average migration of charged energy away from the axes of quenched jets from Pb+Pb collisions at the LHC. Measurements of generalized angularities in presence of the medium from Pb+Pb collisions at the LHC show harder, or more quark-like jet fragmentation relative to vacuum. Measuring these distributions in heavy-ion collisions at RHIC will help us further characterize jet-medium interactions in a phase-space region complementary to that of the LHC.
In these proceedings, we present the first fully corrected measurements of $ρ(\mathbf{R})$, jet girth (g), momentum dispersion ($p_T^D$) and momentum difference of leading and subleading constituent particles (LeSub) observables, using hard-core jets in $p$+$p$ collisions at $\sqrt{s} = 200$ GeV, collected by the STAR experiment. Finally, the data are compared with model calculations and the physics implications are discussed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_13928 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Generalized angularities and differential jet shapes measurements from STAR at $\sqrt{s} = $ 200 GeV Pani, Tanmay Nuclear Experiment Jets from early stages of heavy-ion collisions undergo modified showering in quark-gluon plasma (QGP) relative to vacuum due to jet-medium interactions, which can be measured using observables like differential jet shape and generalized angularities. Differential jet shape ($ρ(\mathbf{R})$) encodes radially differential information about jet broadening and has shown an average migration of charged energy away from the axes of quenched jets from Pb+Pb collisions at the LHC. Measurements of generalized angularities in presence of the medium from Pb+Pb collisions at the LHC show harder, or more quark-like jet fragmentation relative to vacuum. Measuring these distributions in heavy-ion collisions at RHIC will help us further characterize jet-medium interactions in a phase-space region complementary to that of the LHC. In these proceedings, we present the first fully corrected measurements of $ρ(\mathbf{R})$, jet girth (g), momentum dispersion ($p_T^D$) and momentum difference of leading and subleading constituent particles (LeSub) observables, using hard-core jets in $p$+$p$ collisions at $\sqrt{s} = 200$ GeV, collected by the STAR experiment. Finally, the data are compared with model calculations and the physics implications are discussed. |
| title | Generalized angularities and differential jet shapes measurements from STAR at $\sqrt{s} = $ 200 GeV |
| topic | Nuclear Experiment |
| url | https://arxiv.org/abs/2403.13928 |