# Measurement of the charged-particle multiplicity inside jets from √s = 8 TeV pp collisions with the ATLAS detector

The ATLAS Collaboration

44 被引用数 (Scopus)

## 抄録

The number of charged particles inside jets is a widely used discriminant for identifying the quark or gluon nature of the initiating parton and is sensitive to both the perturbative and non-perturbative components of fragmentation. This paper presents a measurement of the average number of charged particles with >500 pT> 500 {\mathrm{MeV}} MeV  inside high-momentum jets in dijet events using 20.3 fb-1 of data recorded with the ATLAS detector in pp collisions at √s = 8 TeV  collisions at the LHC. The jets considered have transverse momenta from 50 GeV  up to and beyond 1.5 TeV. The reconstructed charged-particle track multiplicity distribution is unfolded to remove distortions from detector effects and the resulting charged-particle multiplicity is compared to several models. Furthermore, quark and gluon jet fractions are used to extract the average charged-particle multiplicity for quark and gluon jets separately.

本文言語 English 322 1-23 23 European Physical Journal C 76 6 https://doi.org/10.1140/epjc/s10052-016-4126-5 Published - 2016 6月 1

## ASJC Scopus subject areas

• 工学（その他）
• 物理学および天文学（その他）

## フィンガープリント

「Measurement of the charged-particle multiplicity inside jets from √s = 8 TeV pp collisions with the ATLAS detector」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。