Title: Observation of jet quenching in O+O collisions at 200 GeV in STAR

PAs: Sijie Zhang, Yang He, Maowu Nie, Rongrong Ma, Li Yi

Contact information: sijiezhang@mail.sdu.edu.cn; maowu.nie@sdu.edu.cn; marr@bnl.gov; li.yi@sdu.edu.cn

Target journal: Physics Review Letters

Paper Draft:
Current Version: Link

Analysis Note:
Current Version: Link
 

Talks in PWG meeting:
https://drupal.star.bnl.gov/STAR/system/files/OOh-jet_pwg_240919.pdf
https://drupal.star.bnl.gov/STAR/system/files/OO_jet_pwg_250313.pdf
https://drupal.star.bnl.gov/STAR/system/files/OO_jet_pwg_250327.pdf
https://drupal.star.bnl.gov/STAR/system/files/OO_jet_pwg_250626_2.pdf

Talks in collaboration meeting:

https://drupal.star.bnl.gov/STAR/system/files/241023_coll_meeting.pdf
https://drupal.star.bnl.gov/STAR/system/files/250305_coll_meeting_parallel_v1.pdf
https://drupal.star.bnl.gov/STAR/system/files/250307_coll_meeting_plenary.pdf

Abstract:

Studying the quark-gluon plasma (QGP), a novel state of matter made of deconfined 6 quarks and gluons, is essential for understanding the early universe.
Jet quenching, modifications to the energy and substructure of high-energy parton showers in the QGP, serves 8 as a key experimental tool to probe QGP’s properties in relativistic heavy-ion collisions.
Although the jet quenching phenomenon has been well established in large collision systems, such as Au+Au and Pb+Pb collisions, it is absent in smaller p+A collisions, either because the medium is not formed,
or its temperature or lifetime is too low to cause jets to lose much energy. This highlights the need for studying its system size dependence, and the O+O collisions delivered by RHIC at √sNN = 200 GeV
bridge the gap between these small and large systems.

Motivation: