Transverse Energy-Energy Correlator for Vector Boson-Tagged Hadron Production in $pp$ and $pA$ collisions
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2024
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866909717168652288 |
|---|---|
| author | Kang, Zhong-Bo Lee, Sookhyun Penttala, Jani Zhao, Fanyi Zhou, Yiyu |
| author_facet | Kang, Zhong-Bo Lee, Sookhyun Penttala, Jani Zhao, Fanyi Zhou, Yiyu |
| contents | We investigate the transverse energy-energy correlator (TEEC) event-shape observable for back-to-back $γ+ h$ and $Z + h$ production in both $pp$ and $pA$ collisions. Our study incorporates nuclear modifications into the transverse-momentum dependent (TMD) factorization framework, with resummation up to next-to-leading logarithmic (NLL) accuracy, for TEEC as a function of the variable $τ= \left(1 + \cosϕ \right)/2$, where $ϕ$ is the azimuthal angle between the vector boson and the final hadron. We analyze the nuclear modification factor $R_{pA}$ in $p\mathrm{Au}$ collisions at RHIC and $p\mathrm{Pb}$ collisions at the LHC. Our results demonstrate that the TEEC observable is a sensitive probe for nuclear modifications in TMD physics. Specifically, the changes in the $τ$-distribution shape provide insights into transverse momentum broadening effects in large nuclei, while measurements at different rapidities allow us to explore nuclear modifications in the collinear component of the TMD parton distribution functions in nuclei. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_02747 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Transverse Energy-Energy Correlator for Vector Boson-Tagged Hadron Production in $pp$ and $pA$ collisions Kang, Zhong-Bo Lee, Sookhyun Penttala, Jani Zhao, Fanyi Zhou, Yiyu High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment Nuclear Theory We investigate the transverse energy-energy correlator (TEEC) event-shape observable for back-to-back $γ+ h$ and $Z + h$ production in both $pp$ and $pA$ collisions. Our study incorporates nuclear modifications into the transverse-momentum dependent (TMD) factorization framework, with resummation up to next-to-leading logarithmic (NLL) accuracy, for TEEC as a function of the variable $τ= \left(1 + \cosϕ \right)/2$, where $ϕ$ is the azimuthal angle between the vector boson and the final hadron. We analyze the nuclear modification factor $R_{pA}$ in $p\mathrm{Au}$ collisions at RHIC and $p\mathrm{Pb}$ collisions at the LHC. Our results demonstrate that the TEEC observable is a sensitive probe for nuclear modifications in TMD physics. Specifically, the changes in the $τ$-distribution shape provide insights into transverse momentum broadening effects in large nuclei, while measurements at different rapidities allow us to explore nuclear modifications in the collinear component of the TMD parton distribution functions in nuclei. |
| title | Transverse Energy-Energy Correlator for Vector Boson-Tagged Hadron Production in $pp$ and $pA$ collisions |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2410.02747 |