旁观者阴影作为RHIC-FXT和FAIR能量下NCQ标度破坏的来源
Spectator shadowing as the source of the breaking of NCQ scaling at RHIC-FXT and FAIR energies
浏览论文内容
中文总结 AI 辅助
该研究针对RHIC-FXT和FAIR能量下NCQ标度破坏问题，提出嵌入旁观者阴影效应的新框架，通过模型计算证明标度破坏源于旁观者阴影。
中文摘要 AI 辅助
鉴别强子的椭圆流随组分夸克数的表观标度表明存在夸克合并，进而暗示重离子碰撞中存在退禁闭态。RHIC近期测量发现低能下NCQ标度发生破坏，认为这标志着高能下部分子集体性的起始。本文提出将旁观者阴影效应嵌入流标度关系的新框架，采用含理想化夸克合并源的toy模型与用于绕过旁观者的弹道Glauber模型，证明观测到的标度破坏是旁观者阴影的效应。
英文摘要
The apparent scaling of the elliptic flow of identified hadrons with the number of constituent quarks indicates the presence of quark coalescence, and in turn suggests the presence of a deconfined state in heavy-ion collisions. Recent measurements at RHIC found a breaking of NCQ scaling at low energies and suggested that this marks the onset of partonic collectivity at higher energies. Here, we present a new framework embedding the effect of spectator shadowing into the flow scaling relations. Using a toy model with an idealized quark coalescence source and a ballistic Glauber model for the bypassing spectator, we demonstrate that the observed breaking is an effect of spectator shadowing.
发表机构
- CERN（欧洲核子研究中心）
- Duke University（杜克大学）
- Czech Technical University in Prague（布拉格捷克理工大学）
机构由 AI 辅助整理，请以论文原文为准。
